[fiona] 01/04: Imported Upstream version 1.4.4

Johan Van de Wauw johanvdw-guest at moszumanska.debian.org
Fri Oct 17 00:29:27 UTC 2014


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johanvdw-guest pushed a commit to branch master
in repository fiona.

commit 5805c0f14834faba199989dbdd3419f691354b6f
Author: Johan Van de Wauw <johan.vandewauw at gmail.com>
Date:   Fri Oct 17 01:52:57 2014 +0200

    Imported Upstream version 1.4.4
---
 CHANGES.txt                         |   231 +
 CREDITS.txt                         |    33 +
 Fiona.egg-info/PKG-INFO             |   563 +
 Fiona.egg-info/SOURCES.txt          |    62 +
 Fiona.egg-info/dependency_links.txt |     1 +
 Fiona.egg-info/entry_points.txt     |     4 +
 Fiona.egg-info/requires.txt         |     2 +
 Fiona.egg-info/top_level.txt        |     1 +
 LICENSE.txt                         |    28 +
 PKG-INFO                            |   563 +
 README.rst                          |   278 +
 VERSION.txt                         |     1 +
 benchmark.py                        |    51 +
 docs/README.rst                     |     5 +
 docs/cli.rst                        |   223 +
 docs/data/test_uk.dbf               |   Bin 0 -> 10129 bytes
 docs/data/test_uk.prj               |     1 +
 docs/data/test_uk.shp               |   Bin 0 -> 65156 bytes
 docs/data/test_uk.shx               |   Bin 0 -> 484 bytes
 docs/encoding.txt                   |    59 +
 docs/index.rst                      |    19 +
 docs/manual.rst                     |  1222 ++
 fiona/__init__.py                   |   238 +
 fiona/_drivers.c                    |  4561 +++++++
 fiona/_err.c                        |  2432 ++++
 fiona/_geometry.c                   | 10093 +++++++++++++++
 fiona/_geometry.cpp                 | 14460 +++++++++++++++++++++
 fiona/_transform.cpp                |  6800 ++++++++++
 fiona/collection.py                 |   530 +
 fiona/crs.py                        |   182 +
 fiona/errors.py                     |    11 +
 fiona/fio/__init__.py               |     0
 fiona/fio/cat.py                    |   475 +
 fiona/fio/cli.py                    |    36 +
 fiona/fio/fio.py                    |   202 +
 fiona/inspector.py                  |    40 +
 fiona/odict.py                      |     4 +
 fiona/ogrext.c                      | 23764 ++++++++++++++++++++++++++++++++++
 fiona/rfc3339.py                    |    80 +
 fiona/tool.py                       |   257 +
 fiona/transform.py                  |    17 +
 setup.cfg                           |    10 +
 setup.py                            |   148 +
 tests/__init__.py                   |    39 +
 tests/test_bounds.py                |    15 +
 tests/test_cli.py                   |    80 +
 tests/test_collection.py            |   584 +
 tests/test_crs.py                   |    80 +
 tests/test_drivers.py               |    30 +
 tests/test_feature.py               |   112 +
 tests/test_geojson.py               |    48 +
 tests/test_geometry.py              |   191 +
 tests/test_geopackage.py            |    77 +
 tests/test_layer.py                 |    77 +
 tests/test_listing.py               |    47 +
 tests/test_multiconxn.py            |   124 +
 tests/test_props.py                 |    20 +
 tests/test_revolvingdoor.py         |    37 +
 tests/test_rfc3339.py               |    63 +
 tests/test_schema.py                |   126 +
 tests/test_slice.py                 |    75 +
 tests/test_unicode.py               |    47 +
 tests/test_vfs.py                   |   100 +
 63 files changed, 69659 insertions(+)

diff --git a/CHANGES.txt b/CHANGES.txt
new file mode 100644
index 0000000..59152eb
--- /dev/null
+++ b/CHANGES.txt
@@ -0,0 +1,231 @@
+Changes
+=======
+
+1.4.4 (2014-10-13)
+------------------
+- Fix accidental requirement on GDAL 1.10 introduced in 1.4.3 (#164).
+
+1.4.3 (2014-10-10)
+------------------
+- Add support for geopackage format (#160).
+- Add -f and --format aliases for --driver in CLI (#162).
+- Add --version option and env command to CLI.
+
+1.4.2 (2014-10-03)
+------------------
+- --dst-crs and --src-crs options for fio cat and collect (#159).
+
+1.4.1 (2014-09-30)
+------------------
+- Fix encoding bug in collection's __getitem__ (#153).
+
+1.4.0 (2014-09-22)
+------------------
+- Add fio cat and fio collect commands (#150).
+- Return of Python 2.6 compatibility (#148).
+- Improved CRS support (#149).
+
+1.3.0 (2014-09-17)
+------------------
+- Add single metadata item accessors to fio inf (#142).
+- Move fio to setuptools entry point (#142).
+- Add fio dump and load commands (#143).
+- Remove fio translate command.
+
+1.2.0 (2014-09-02)
+------------------
+- Always show property width and precision in schema (#123).
+- Write datetime properties of features (#125).
+- Reset spatial filtering in filter() (#129).
+- Accept datetime.date objects as feature properties (#130).
+- Add slicing to collection iterators (#132).
+- Add geometry object masks to collection iterators (#136).
+- Change source layout to match Shapely and Rasterio (#138).
+
+1.1.6 (2014-07-23)
+------------------
+- Implement Collection __getitem__() (#112).
+- Leave GDAL finalization to the DLL's destructor (#113).
+- Add Collection keys(), values(), items(), __contains__() (#114).
+- CRS bug fix (#116).
+- Add fio CLI program.
+  
+1.1.5 (2014-05-21)
+------------------
+- Addition of cpl_errs context manager (#108).
+- Check for NULLs with '==' test instead of 'is' (#109).
+- Open auxiliary files with encoding='utf-8' in setup for Python 3 (#110).
+
+1.1.4 (2014-04-03)
+------------------
+- Convert 'long' in schemas to 'int' (#101).
+- Carefully map Python schema to the possibly munged internal schema (#105).
+- Allow writing of features with geometry: None (#71).
+
+1.1.3 (2014-03-23)
+------------------
+- Always register all GDAL and OGR drivers when entering the DriverManager
+  context (#80, #92).
+- Skip unsupported field types with a warning (#91).
+- Allow OGR config options to be passed to fiona.drivers() (#90, #93).
+- Add a bounds() function (#100).
+- Turn on GPX driver.
+
+1.1.2 (2014-02-14)
+------------------
+- Remove collection slice left in dumpgj (#88).
+
+1.1.1 (2014-02-02)
+------------------
+- Add an interactive file inspector like the one in rasterio.
+- CRS to_string bug fix (#83).
+
+1.1 (2014-01-22)
+----------------
+- Use a context manager to manage drivers (#78), a backwards compatible but
+  big change. Fiona is now compatible with rasterio and plays better with the
+  osgeo package.
+
+1.0.3 (2014-01-21)
+------------------
+- Fix serialization of +init projections (#69).
+
+1.0.2 (2013-09-09)
+------------------
+- Smarter, better test setup (#65, #66, #67).
+- Add type='Feature' to records read from a Collection (#68).
+- Skip geometry validation when using GeoJSON driver (#61).
+- Dumpgj file description reports record properties as a list (as in
+  dict.items()) instead of a dict.
+
+1.0.1 (2013-08-16)
+------------------
+- Allow ordering of written fields and preservation of field order when
+  reading (#57).
+
+1.0 (2013-07-30)
+-----------------
+- Add prop_type() function.
+- Allow UTF-8 encoded paths for Python 2 (#51). For Python 3, paths must
+  always be str, never bytes.
+- Remove encoding from collection.meta, it's a file creation option only.
+- Support for linking GDAL frameworks (#54).
+
+0.16.1 (2013-07-02)
+-------------------
+- Add listlayers, open, prop_width to __init__py:__all__.
+- Reset reading of OGR layer whenever we ask for a collection iterator (#49).
+
+0.16 (2013-06-24)
+-----------------
+- Add support for writing layers to multi-layer files.
+- Add tests to reach 100% Python code coverage.
+
+0.15 (2013-06-06)
+-----------------
+- Get and set numeric field widths (#42).
+- Add support for multi-layer data sources (#17).
+- Add support for zip and tar virtual filesystems (#45).
+- Add listlayers() function.
+- Add GeoJSON to list of supported formats (#47).
+- Allow selection of layers by index or name.
+
+0.14 (2013-05-04)
+-----------------
+- Add option to add JSON-LD in the dumpgj program.
+- Compare values to six.string_types in Collection constructor.
+- Add encoding to Collection.meta.
+- Document dumpgj in README.
+
+0.13 (2013-04-30)
+-----------------
+- Python 2/3 compatibility in a single package. Pythons 2.6, 2.7, 3.3 now supported.
+
+0.12.1 (2013-04-16)
+-------------------
+- Fix messed up linking of README in sdist (#39).
+
+0.12 (2013-04-15)
+-----------------
+- Fix broken installation of extension modules (#35).
+- Log CPL errors at their matching Python log levels.
+- Use upper case for encoding names within OGR, lower case in Python.
+
+0.11 (2013-04-14)
+-----------------
+- Cythonize .pyx files (#34).
+- Work with or around OGR's internal recoding of record data (#35).
+- Fix bug in serialization of int/float PROJ.4 params.
+
+0.10 (2013-03-23)
+-----------------
+- Add function to get the width of str type properties.
+- Handle validation and schema representation of 3D geometry types (#29).
+- Return {'geometry': None} in the case of a NULL geometry (#31).
+
+0.9.1 (2013-03-07)
+------------------
+- Silence the logger in ogrext.so (can be overridden).
+- Allow user specification of record field encoding (like 'Windows-1252' for
+  Natural Earth shapefiles) to help when OGR can't detect it.
+
+0.9 (2013-03-06)
+----------------
+- Accessing file metadata (crs, schema, bounds) on never inspected closed files
+  returns None without exceptions.
+- Add a dict of supported_drivers and their supported modes.
+- Raise ValueError for unsupported drivers and modes.
+- Remove asserts from ogrext.pyx.
+- Add validate_record method to collections.
+- Add helpful coordinate system functions to fiona.crs.
+- Promote use of fiona.open over fiona.collection.
+- Handle Shapefile's mix of LineString/Polygon and multis (#18).
+- Allow users to specify width of shapefile text fields (#20).
+
+0.8 (2012-02-21)
+----------------
+- Replaced .opened attribute with .closed (product of collection() is always
+  opened). Also a __del__() which will close a Collection, but still not to be
+  depended upon.
+- Added writerecords method.
+- Added a record buffer and better counting of records in a collection.
+- Manage one iterator per collection/session.
+- Added a read-only bounds property.
+
+0.7 (2012-01-29)
+----------------
+- Initial timezone-naive support for date, time, and datetime fields. Don't use
+  these field types if you can avoid them. RFC 3339 datetimes in a string field
+  are much better.
+
+0.6.2 (2012-01-10)
+------------------
+- Diagnose and set the driver property of collection in read mode.
+- Fail if collection paths are not to files. Multi-collection workspaces are
+  a (maybe) TODO.
+
+0.6.1 (2012-01-06)
+------------------
+- Handle the case of undefined crs for disk collections.
+
+0.6 (2012-01-05)
+----------------
+- Support for collection coordinate reference systems based on Proj4.
+- Redirect OGR warnings and errors to the Fiona log.
+- Assert that pointers returned from the ograpi functions are not NULL before
+  using.
+
+0.5 (2011-12-19)
+----------------
+- Support for reading and writing collections of any geometry type.
+- Feature and Geometry classes replaced by mappings (dicts).
+- Removal of Workspace class.
+
+0.2 (2011-09-16)
+----------------
+- Rename WorldMill to Fiona.
+
+0.1.1 (2008-12-04)
+------------------
+- Support for features with no geometry.
+
diff --git a/CREDITS.txt b/CREDITS.txt
new file mode 100644
index 0000000..1d70bf1
--- /dev/null
+++ b/CREDITS.txt
@@ -0,0 +1,33 @@
+Credits
+=======
+
+Fiona is written by:
+
+* Sean Gillies (https://github.com/sgillies)
+
+With contributions by:
+
+* Joshua Arnott (https://github.com/snorfalorpagus)
+* René Buffat (https://github.com/rbuffat)
+* Michele Citterio (https://github.com/citterio)
+* Stefano Costa (https://github.com/steko)
+* Ludovic Delauné (https://github.com/ldgeo)
+* Kelsey Jordahl (https://github.com/kjordahl)
+* Frédéric Junod (https://github.com/fredj)
+* jwass (https://github.com/jwass)
+* Brandon Liu (https://github.com/bdon)
+* lordi (https://github.com/lordi)
+* Ariel Núñez (https://github.com/ingenieroariel)
+* Oliver Tonnhofer (https://github.com/olt)
+* Brendan Wards (https://github.com/brendan-ward)
+* Michael Weisman (https://github.com/mweisman)
+* Andy Wilson (https://github.com/wilsaj)
+
+Fiona would not be possible without the great work of Frank Warmerdam and other
+GDAL/OGR developers.
+
+Some portions of this work were supported by a grant (for Pleiades_) from the
+U.S. National Endowment for the Humanities (http://www.neh.gov).
+
+.. _Pleiades: http://pleiades.stoa.org
+
diff --git a/Fiona.egg-info/PKG-INFO b/Fiona.egg-info/PKG-INFO
new file mode 100644
index 0000000..27b36f1
--- /dev/null
+++ b/Fiona.egg-info/PKG-INFO
@@ -0,0 +1,563 @@
+Metadata-Version: 1.1
+Name: Fiona
+Version: 1.4.4
+Summary: Fiona reads and writes spatial data files
+Home-page: http://github.com/Toblerity/Fiona
+Author: Sean Gillies
+Author-email: sean.gillies at gmail.com
+License: BSD
+Description: =====
+        Fiona
+        =====
+        
+        Fiona is OGR's neat, nimble, no-nonsense API for Python programmers.
+        
+        .. image:: https://travis-ci.org/Toblerity/Fiona.png?branch=master   
+           :target: https://travis-ci.org/Toblerity/Fiona
+        
+        Fiona is designed to be simple and dependable. It focuses on reading and
+        writing data in standard Python IO style and relies upon familiar Python types
+        and protocols such as files, dictionaries, mappings, and iterators instead of
+        classes specific to OGR. Fiona can read and write real-world data using
+        multi-layered GIS formats and zipped virtual file systems and integrates
+        readily with other Python GIS packages such as pyproj_, Rtree_, and Shapely_.
+        
+        For more details, see:
+        
+        * Fiona `home page <https://github.com/Toblerity/Fiona>`__
+        * Fiona `docs and manual <http://toblerity.github.com/fiona/>`__
+        * Fiona `examples <https://github.com/Toblerity/Fiona/tree/master/examples>`__
+        
+        Usage
+        =====
+        
+        Collections
+        -----------
+        
+        Records are read from and written to ``file``-like `Collection` objects
+        returned from the ``fiona.open()`` function.  Records are mappings modeled on
+        the GeoJSON format. They don't have any spatial methods of their own, so if you
+        want to do anything fancy with them you will probably need Shapely or something
+        like it. Here is an example of using Fiona to read some records from one data
+        file, change their geometry attributes, and write them to a new data file.
+        
+        .. code-block:: python
+        
+            import fiona
+          
+            # Register format drivers with a context manager
+            
+            with fiona.drivers():
+        
+                # Open a file for reading. We'll call this the "source."
+                
+                with fiona.open('docs/data/test_uk.shp') as source:
+        
+                    # The file we'll write to, the "sink", must be initialized
+                    # with a coordinate system, a format driver name, and
+                    # a record schema.  We can get initial values from the open
+                    # collection's ``meta`` property and then modify them as
+                    # desired.
+        
+                    meta = source.meta
+                    meta['schema']['geometry'] = 'Point'
+        
+                    # Open an output file, using the same format driver and
+                    # coordinate reference system as the source. The ``meta``
+                    # mapping fills in the keyword parameters of fiona.open().
+                    
+                    with fiona.open('test_write.shp', 'w', **meta) as sink:
+        
+                        # Process only the records intersecting a box.
+                        for f in source.filter(bbox=(-5.0, 55.0, 0.0, 60.0)):
+                  
+                            # Get a point on the boundary of the record's
+                            # geometry.
+                            
+                            f['geometry'] = {
+                                'type': 'Point',
+                                'coordinates': f['geometry']['coordinates'][0][0]}
+                      
+                            # Write the record out.
+                            
+                            sink.write(f)
+                      
+                # The sink's contents are flushed to disk and the file is
+                # closed when its ``with`` block ends. This effectively
+                # executes ``sink.flush(); sink.close()``.
+        
+            # At the end of the ``with fiona.drivers()`` block, context
+            # manager exits and all drivers are de-registered.
+        
+        The fiona.drivers() function and context manager are new in 1.1. The
+        example above shows the way to use it to register and de-register
+        drivers in a deterministic and efficient way. Code written for Fiona 1.0
+        will continue to work: opened collections may manage the global driver
+        registry if no other manager is present.
+        
+        Reading Multilayer data
+        -----------------------
+        
+        Collections can also be made from single layers within multilayer files or
+        directories of data. The target layer is specified by name or by its integer
+        index within the file or directory. The ``fiona.listlayers()`` function
+        provides an index ordered list of layer names.
+        
+        .. code-block:: python
+        
+            with fiona.drivers():
+        
+                for layername in fiona.listlayers('docs/data'):
+                    with fiona.open('docs/data', layer=layername) as c:
+                        print(layername, len(c))
+            
+            # Output:
+            # test_uk 48
+        
+        Layer can also be specified by index. In this case, ``layer=0`` and
+        ``layer='test_uk'`` specify the same layer in the data file or directory.
+        
+        .. code-block:: python
+        
+            with fiona.drivers():
+        
+                for i, layername in enumerate(fiona.listlayers('docs/data')):
+                    with fiona.open('docs/data', layer=i) as c:
+                        print(i, layername, len(c))
+            
+            # Output:
+            # 0 test_uk 48
+        
+        Writing Multilayer data
+        -----------------------
+        
+        Multilayer data can be written as well. Layers must be specified by name when
+        writing.
+        
+        .. code-block:: python
+            
+            with fiona.drivers():
+        
+                with open('docs/data/test_uk.shp') as c:
+                    meta = c.meta
+                    f = next(c)
+            
+                with fiona.open('/tmp/foo', 'w', layer='bar', **meta) as c:
+                    c.write(f)
+            
+                print(fiona.listlayers('/tmp/foo'))
+                # Output: ['bar']
+            
+                with fiona.open('/tmp/foo', layer='bar') as c:
+                    print(len(c))
+                    f = next(c)
+                    print(f['geometry']['type'])
+                    print(f['properties'])
+            
+                # Output:
+                # 1
+                # Polygon
+                # {'FIPS_CNTRY': 'UK', 'POP_CNTRY': 60270708.0, 'CAT': 232.0, 
+                #  'AREA': 244820.0, 'CNTRY_NAME': 'United Kingdom'}
+        
+        A view of the /tmp/foo directory will confirm the creation of the new files.
+        
+        .. code-block:: console
+        
+            $ ls /tmp/foo
+            bar.cpg bar.dbf bar.prj bar.shp bar.shx
+        
+        Collections from archives and virtual file systems
+        --------------------------------------------------
+        
+        Zip and Tar archives can be treated as virtual filesystems and Collections can
+        be made from paths and layers within them. In other words, Fiona lets you read
+        and write zipped Shapefiles.
+        
+        .. code-block:: python
+        
+            with fiona.drivers():
+        
+                for i, layername in enumerate(
+                        fiona.listlayers(
+                            '/', 
+                            vfs='zip://docs/data/test_uk.zip')):
+                    with fiona.open(
+                            '/', 
+                            vfs='zip://docs/data/test_uk.zip', 
+                            layer=i) as c:
+                        print(i, layername, len(c))
+            
+            # Output:
+            # 0 test_uk 48
+        
+        Fiona CLI
+        =========
+        
+        Fiona's command line interface, named "fio", is documented at `docs/cli.rst
+        <https://github.com/Toblerity/Fiona/blob/master/docs/cli.rst>`__. Its ``fio
+        info`` pretty prints information about a data file.
+        
+        .. code-block:: console
+        
+            $ fio info docs/data/test_uk.shp
+            { 'bbox': (-8.621389, 49.911659, 1.749444, 60.844444),
+              'count': 48,
+              'crs': { u'datum': u'WGS84', u'no_defs': True, u'proj': u'longlat'},
+              'driver': u'ESRI Shapefile',
+              'schema': { 'geometry': 'Polygon',
+                          'properties': OrderedDict([(u'CAT', 'float:16'), (u'FIPS_CNTRY', 'str:80'), (u'CNTRY_NAME', 'str:80'), (u'AREA', 'float:15.2'), (u'POP_CNTRY', 'float:15.2')])}}
+        
+        Installation
+        ============
+        
+        Fiona requires Python 2.6, 2.7, 3.3, or 3.4 and GDAL/OGR 1.8+. To build from
+        a source distribution you will need a C compiler and GDAL and Python
+        development headers and libraries (libgdal1-dev for Debian/Ubuntu, gdal-dev for
+        CentOS/Fedora).
+        
+        To build from a repository copy, you will also need Cython to build C sources
+        from the project's .pyx files. See the project's requirements-dev.txt file for
+        guidance.
+        
+        The popular `Kyngchaos GDAL frameworks
+        <http://www.kyngchaos.com/software/frameworks#gdal_complete>`__ will satisfy
+        the GDAL/OGR dependency for OS X. Fiona's author uses Homebrew (``brew install
+        gdal``) on OS X.
+        
+        Python Requirements
+        -------------------
+        
+        Fiona depends on the modules ``six`` and ``argparse``. The latter is standard
+        in Python 2.7+. Easy_install and pip will fetch these requirements for you, but
+        users installing Fiona from a Windows installer must get them separately.
+        
+        Unix-like systems
+        -----------------
+        
+        Assuming you're using a virtualenv (if not, skip to the 4th command) and
+        GDAL/OGR libraries, headers, and `gdal-config`_ program are installed to well
+        known locations on your system via your system's package manager (``brew
+        install gdal`` using Homebrew on OS X), installation is this simple::
+        
+          $ mkdir fiona_env
+          $ virtualenv fiona_env
+          $ source fiona_env/bin/activate
+          (fiona_env)$ pip install Fiona
+        
+        If gdal-config is not available or if GDAL/OGR headers and libs aren't
+        installed to a well known location, you must set include dirs, library dirs,
+        and libraries options via the setup.cfg file or setup command line as shown
+        below (using ``git``)::
+        
+          (fiona_env)$ git clone git://github.com/Toblerity/Fiona.git
+          (fiona_env)$ cd Fiona
+          (fiona_env)$ python setup.py build_ext -I/path/to/gdal/include -L/path/to/gdal/lib -lgdal install
+        
+        Windows
+        -------
+        
+        Binary installers are available at
+        http://www.lfd.uci.edu/~gohlke/pythonlibs/#fiona and coming eventually to PyPI.
+        
+        Development and testing
+        =======================
+        
+        Building from the source requires Cython. Tests require Nose. If the GDAL/OGR
+        libraries, headers, and `gdal-config`_ program are installed to well known
+        locations on your system (via your system's package manager), you can do this::
+        
+          (fiona_env)$ git clone git://github.com/Toblerity/Fiona.git
+          (fiona_env)$ cd Fiona
+          (fiona_env)$ python setup.py develop
+          (fiona_env)$ nosetests
+        
+        If you have a non-standard environment, you'll need to specify the include and
+        lib dirs and GDAL library on the command line::
+        
+          (fiona_env)$ python setup.py build_ext -I/path/to/gdal/include -L/path/to/gdal/lib -lgdal develop
+          (fiona_env)$ nosetests
+        
+        .. _OGR: http://www.gdal.org/ogr
+        .. _pyproj: http://pypi.python.org/pypi/pyproj/
+        .. _Rtree: http://pypi.python.org/pypi/Rtree/
+        .. _Shapely: http://pypi.python.org/pypi/Shapely/
+        .. _gdal-config: http://www.gdal.org/gdal-config.html
+        
+        
+        Changes
+        =======
+        
+        1.4.4 (2014-10-13)
+        ------------------
+        - Fix accidental requirement on GDAL 1.10 introduced in 1.4.3 (#164).
+        
+        1.4.3 (2014-10-10)
+        ------------------
+        - Add support for geopackage format (#160).
+        - Add -f and --format aliases for --driver in CLI (#162).
+        - Add --version option and env command to CLI.
+        
+        1.4.2 (2014-10-03)
+        ------------------
+        - --dst-crs and --src-crs options for fio cat and collect (#159).
+        
+        1.4.1 (2014-09-30)
+        ------------------
+        - Fix encoding bug in collection's __getitem__ (#153).
+        
+        1.4.0 (2014-09-22)
+        ------------------
+        - Add fio cat and fio collect commands (#150).
+        - Return of Python 2.6 compatibility (#148).
+        - Improved CRS support (#149).
+        
+        1.3.0 (2014-09-17)
+        ------------------
+        - Add single metadata item accessors to fio inf (#142).
+        - Move fio to setuptools entry point (#142).
+        - Add fio dump and load commands (#143).
+        - Remove fio translate command.
+        
+        1.2.0 (2014-09-02)
+        ------------------
+        - Always show property width and precision in schema (#123).
+        - Write datetime properties of features (#125).
+        - Reset spatial filtering in filter() (#129).
+        - Accept datetime.date objects as feature properties (#130).
+        - Add slicing to collection iterators (#132).
+        - Add geometry object masks to collection iterators (#136).
+        - Change source layout to match Shapely and Rasterio (#138).
+        
+        1.1.6 (2014-07-23)
+        ------------------
+        - Implement Collection __getitem__() (#112).
+        - Leave GDAL finalization to the DLL's destructor (#113).
+        - Add Collection keys(), values(), items(), __contains__() (#114).
+        - CRS bug fix (#116).
+        - Add fio CLI program.
+          
+        1.1.5 (2014-05-21)
+        ------------------
+        - Addition of cpl_errs context manager (#108).
+        - Check for NULLs with '==' test instead of 'is' (#109).
+        - Open auxiliary files with encoding='utf-8' in setup for Python 3 (#110).
+        
+        1.1.4 (2014-04-03)
+        ------------------
+        - Convert 'long' in schemas to 'int' (#101).
+        - Carefully map Python schema to the possibly munged internal schema (#105).
+        - Allow writing of features with geometry: None (#71).
+        
+        1.1.3 (2014-03-23)
+        ------------------
+        - Always register all GDAL and OGR drivers when entering the DriverManager
+          context (#80, #92).
+        - Skip unsupported field types with a warning (#91).
+        - Allow OGR config options to be passed to fiona.drivers() (#90, #93).
+        - Add a bounds() function (#100).
+        - Turn on GPX driver.
+        
+        1.1.2 (2014-02-14)
+        ------------------
+        - Remove collection slice left in dumpgj (#88).
+        
+        1.1.1 (2014-02-02)
+        ------------------
+        - Add an interactive file inspector like the one in rasterio.
+        - CRS to_string bug fix (#83).
+        
+        1.1 (2014-01-22)
+        ----------------
+        - Use a context manager to manage drivers (#78), a backwards compatible but
+          big change. Fiona is now compatible with rasterio and plays better with the
+          osgeo package.
+        
+        1.0.3 (2014-01-21)
+        ------------------
+        - Fix serialization of +init projections (#69).
+        
+        1.0.2 (2013-09-09)
+        ------------------
+        - Smarter, better test setup (#65, #66, #67).
+        - Add type='Feature' to records read from a Collection (#68).
+        - Skip geometry validation when using GeoJSON driver (#61).
+        - Dumpgj file description reports record properties as a list (as in
+          dict.items()) instead of a dict.
+        
+        1.0.1 (2013-08-16)
+        ------------------
+        - Allow ordering of written fields and preservation of field order when
+          reading (#57).
+        
+        1.0 (2013-07-30)
+        -----------------
+        - Add prop_type() function.
+        - Allow UTF-8 encoded paths for Python 2 (#51). For Python 3, paths must
+          always be str, never bytes.
+        - Remove encoding from collection.meta, it's a file creation option only.
+        - Support for linking GDAL frameworks (#54).
+        
+        0.16.1 (2013-07-02)
+        -------------------
+        - Add listlayers, open, prop_width to __init__py:__all__.
+        - Reset reading of OGR layer whenever we ask for a collection iterator (#49).
+        
+        0.16 (2013-06-24)
+        -----------------
+        - Add support for writing layers to multi-layer files.
+        - Add tests to reach 100% Python code coverage.
+        
+        0.15 (2013-06-06)
+        -----------------
+        - Get and set numeric field widths (#42).
+        - Add support for multi-layer data sources (#17).
+        - Add support for zip and tar virtual filesystems (#45).
+        - Add listlayers() function.
+        - Add GeoJSON to list of supported formats (#47).
+        - Allow selection of layers by index or name.
+        
+        0.14 (2013-05-04)
+        -----------------
+        - Add option to add JSON-LD in the dumpgj program.
+        - Compare values to six.string_types in Collection constructor.
+        - Add encoding to Collection.meta.
+        - Document dumpgj in README.
+        
+        0.13 (2013-04-30)
+        -----------------
+        - Python 2/3 compatibility in a single package. Pythons 2.6, 2.7, 3.3 now supported.
+        
+        0.12.1 (2013-04-16)
+        -------------------
+        - Fix messed up linking of README in sdist (#39).
+        
+        0.12 (2013-04-15)
+        -----------------
+        - Fix broken installation of extension modules (#35).
+        - Log CPL errors at their matching Python log levels.
+        - Use upper case for encoding names within OGR, lower case in Python.
+        
+        0.11 (2013-04-14)
+        -----------------
+        - Cythonize .pyx files (#34).
+        - Work with or around OGR's internal recoding of record data (#35).
+        - Fix bug in serialization of int/float PROJ.4 params.
+        
+        0.10 (2013-03-23)
+        -----------------
+        - Add function to get the width of str type properties.
+        - Handle validation and schema representation of 3D geometry types (#29).
+        - Return {'geometry': None} in the case of a NULL geometry (#31).
+        
+        0.9.1 (2013-03-07)
+        ------------------
+        - Silence the logger in ogrext.so (can be overridden).
+        - Allow user specification of record field encoding (like 'Windows-1252' for
+          Natural Earth shapefiles) to help when OGR can't detect it.
+        
+        0.9 (2013-03-06)
+        ----------------
+        - Accessing file metadata (crs, schema, bounds) on never inspected closed files
+          returns None without exceptions.
+        - Add a dict of supported_drivers and their supported modes.
+        - Raise ValueError for unsupported drivers and modes.
+        - Remove asserts from ogrext.pyx.
+        - Add validate_record method to collections.
+        - Add helpful coordinate system functions to fiona.crs.
+        - Promote use of fiona.open over fiona.collection.
+        - Handle Shapefile's mix of LineString/Polygon and multis (#18).
+        - Allow users to specify width of shapefile text fields (#20).
+        
+        0.8 (2012-02-21)
+        ----------------
+        - Replaced .opened attribute with .closed (product of collection() is always
+          opened). Also a __del__() which will close a Collection, but still not to be
+          depended upon.
+        - Added writerecords method.
+        - Added a record buffer and better counting of records in a collection.
+        - Manage one iterator per collection/session.
+        - Added a read-only bounds property.
+        
+        0.7 (2012-01-29)
+        ----------------
+        - Initial timezone-naive support for date, time, and datetime fields. Don't use
+          these field types if you can avoid them. RFC 3339 datetimes in a string field
+          are much better.
+        
+        0.6.2 (2012-01-10)
+        ------------------
+        - Diagnose and set the driver property of collection in read mode.
+        - Fail if collection paths are not to files. Multi-collection workspaces are
+          a (maybe) TODO.
+        
+        0.6.1 (2012-01-06)
+        ------------------
+        - Handle the case of undefined crs for disk collections.
+        
+        0.6 (2012-01-05)
+        ----------------
+        - Support for collection coordinate reference systems based on Proj4.
+        - Redirect OGR warnings and errors to the Fiona log.
+        - Assert that pointers returned from the ograpi functions are not NULL before
+          using.
+        
+        0.5 (2011-12-19)
+        ----------------
+        - Support for reading and writing collections of any geometry type.
+        - Feature and Geometry classes replaced by mappings (dicts).
+        - Removal of Workspace class.
+        
+        0.2 (2011-09-16)
+        ----------------
+        - Rename WorldMill to Fiona.
+        
+        0.1.1 (2008-12-04)
+        ------------------
+        - Support for features with no geometry.
+        
+        
+        Credits
+        =======
+        
+        Fiona is written by:
+        
+        * Sean Gillies (https://github.com/sgillies)
+        
+        With contributions by:
+        
+        * Joshua Arnott (https://github.com/snorfalorpagus)
+        * René Buffat (https://github.com/rbuffat)
+        * Michele Citterio (https://github.com/citterio)
+        * Stefano Costa (https://github.com/steko)
+        * Ludovic Delauné (https://github.com/ldgeo)
+        * Kelsey Jordahl (https://github.com/kjordahl)
+        * Frédéric Junod (https://github.com/fredj)
+        * jwass (https://github.com/jwass)
+        * Brandon Liu (https://github.com/bdon)
+        * lordi (https://github.com/lordi)
+        * Ariel Núñez (https://github.com/ingenieroariel)
+        * Oliver Tonnhofer (https://github.com/olt)
+        * Brendan Wards (https://github.com/brendan-ward)
+        * Michael Weisman (https://github.com/mweisman)
+        * Andy Wilson (https://github.com/wilsaj)
+        
+        Fiona would not be possible without the great work of Frank Warmerdam and other
+        GDAL/OGR developers.
+        
+        Some portions of this work were supported by a grant (for Pleiades_) from the
+        U.S. National Endowment for the Humanities (http://www.neh.gov).
+        
+        .. _Pleiades: http://pleiades.stoa.org
+        
+        
+Keywords: gis vector feature data
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: Intended Audience :: Science/Research
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 3
+Classifier: Topic :: Scientific/Engineering :: GIS
diff --git a/Fiona.egg-info/SOURCES.txt b/Fiona.egg-info/SOURCES.txt
new file mode 100644
index 0000000..5b2796c
--- /dev/null
+++ b/Fiona.egg-info/SOURCES.txt
@@ -0,0 +1,62 @@
+CHANGES.txt
+CREDITS.txt
+LICENSE.txt
+README.rst
+VERSION.txt
+benchmark.py
+setup.cfg
+setup.py
+./fiona/__init__.py
+./fiona/collection.py
+./fiona/crs.py
+./fiona/errors.py
+./fiona/inspector.py
+./fiona/odict.py
+./fiona/rfc3339.py
+./fiona/tool.py
+./fiona/transform.py
+./fiona/fio/__init__.py
+./fiona/fio/cat.py
+./fiona/fio/cli.py
+./fiona/fio/fio.py
+Fiona.egg-info/PKG-INFO
+Fiona.egg-info/SOURCES.txt
+Fiona.egg-info/dependency_links.txt
+Fiona.egg-info/entry_points.txt
+Fiona.egg-info/requires.txt
+Fiona.egg-info/top_level.txt
+docs/README.rst
+docs/cli.rst
+docs/encoding.txt
+docs/index.rst
+docs/manual.rst
+docs/data/test_uk.dbf
+docs/data/test_uk.prj
+docs/data/test_uk.shp
+docs/data/test_uk.shx
+fiona/_drivers.c
+fiona/_err.c
+fiona/_geometry.c
+fiona/_geometry.cpp
+fiona/_transform.cpp
+fiona/ogrext.c
+tests/__init__.py
+tests/test_bounds.py
+tests/test_cli.py
+tests/test_collection.py
+tests/test_crs.py
+tests/test_drivers.py
+tests/test_feature.py
+tests/test_geojson.py
+tests/test_geometry.py
+tests/test_geopackage.py
+tests/test_layer.py
+tests/test_listing.py
+tests/test_multiconxn.py
+tests/test_props.py
+tests/test_revolvingdoor.py
+tests/test_rfc3339.py
+tests/test_schema.py
+tests/test_slice.py
+tests/test_unicode.py
+tests/test_vfs.py
\ No newline at end of file
diff --git a/Fiona.egg-info/dependency_links.txt b/Fiona.egg-info/dependency_links.txt
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/Fiona.egg-info/dependency_links.txt
@@ -0,0 +1 @@
+
diff --git a/Fiona.egg-info/entry_points.txt b/Fiona.egg-info/entry_points.txt
new file mode 100644
index 0000000..d1ecc6e
--- /dev/null
+++ b/Fiona.egg-info/entry_points.txt
@@ -0,0 +1,4 @@
+
+        [console_scripts]
+        fio=fiona.fio.fio:cli
+        
\ No newline at end of file
diff --git a/Fiona.egg-info/requires.txt b/Fiona.egg-info/requires.txt
new file mode 100644
index 0000000..424e67c
--- /dev/null
+++ b/Fiona.egg-info/requires.txt
@@ -0,0 +1,2 @@
+click
+six
diff --git a/Fiona.egg-info/top_level.txt b/Fiona.egg-info/top_level.txt
new file mode 100644
index 0000000..9d901a6
--- /dev/null
+++ b/Fiona.egg-info/top_level.txt
@@ -0,0 +1 @@
+fiona
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..7509168
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,28 @@
+
+Copyright (c) 2007, Sean C. Gillies
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of Sean C. Gillies nor the names of
+      its contributors may be used to endorse or promote products derived from
+      this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
+
diff --git a/PKG-INFO b/PKG-INFO
new file mode 100644
index 0000000..27b36f1
--- /dev/null
+++ b/PKG-INFO
@@ -0,0 +1,563 @@
+Metadata-Version: 1.1
+Name: Fiona
+Version: 1.4.4
+Summary: Fiona reads and writes spatial data files
+Home-page: http://github.com/Toblerity/Fiona
+Author: Sean Gillies
+Author-email: sean.gillies at gmail.com
+License: BSD
+Description: =====
+        Fiona
+        =====
+        
+        Fiona is OGR's neat, nimble, no-nonsense API for Python programmers.
+        
+        .. image:: https://travis-ci.org/Toblerity/Fiona.png?branch=master   
+           :target: https://travis-ci.org/Toblerity/Fiona
+        
+        Fiona is designed to be simple and dependable. It focuses on reading and
+        writing data in standard Python IO style and relies upon familiar Python types
+        and protocols such as files, dictionaries, mappings, and iterators instead of
+        classes specific to OGR. Fiona can read and write real-world data using
+        multi-layered GIS formats and zipped virtual file systems and integrates
+        readily with other Python GIS packages such as pyproj_, Rtree_, and Shapely_.
+        
+        For more details, see:
+        
+        * Fiona `home page <https://github.com/Toblerity/Fiona>`__
+        * Fiona `docs and manual <http://toblerity.github.com/fiona/>`__
+        * Fiona `examples <https://github.com/Toblerity/Fiona/tree/master/examples>`__
+        
+        Usage
+        =====
+        
+        Collections
+        -----------
+        
+        Records are read from and written to ``file``-like `Collection` objects
+        returned from the ``fiona.open()`` function.  Records are mappings modeled on
+        the GeoJSON format. They don't have any spatial methods of their own, so if you
+        want to do anything fancy with them you will probably need Shapely or something
+        like it. Here is an example of using Fiona to read some records from one data
+        file, change their geometry attributes, and write them to a new data file.
+        
+        .. code-block:: python
+        
+            import fiona
+          
+            # Register format drivers with a context manager
+            
+            with fiona.drivers():
+        
+                # Open a file for reading. We'll call this the "source."
+                
+                with fiona.open('docs/data/test_uk.shp') as source:
+        
+                    # The file we'll write to, the "sink", must be initialized
+                    # with a coordinate system, a format driver name, and
+                    # a record schema.  We can get initial values from the open
+                    # collection's ``meta`` property and then modify them as
+                    # desired.
+        
+                    meta = source.meta
+                    meta['schema']['geometry'] = 'Point'
+        
+                    # Open an output file, using the same format driver and
+                    # coordinate reference system as the source. The ``meta``
+                    # mapping fills in the keyword parameters of fiona.open().
+                    
+                    with fiona.open('test_write.shp', 'w', **meta) as sink:
+        
+                        # Process only the records intersecting a box.
+                        for f in source.filter(bbox=(-5.0, 55.0, 0.0, 60.0)):
+                  
+                            # Get a point on the boundary of the record's
+                            # geometry.
+                            
+                            f['geometry'] = {
+                                'type': 'Point',
+                                'coordinates': f['geometry']['coordinates'][0][0]}
+                      
+                            # Write the record out.
+                            
+                            sink.write(f)
+                      
+                # The sink's contents are flushed to disk and the file is
+                # closed when its ``with`` block ends. This effectively
+                # executes ``sink.flush(); sink.close()``.
+        
+            # At the end of the ``with fiona.drivers()`` block, context
+            # manager exits and all drivers are de-registered.
+        
+        The fiona.drivers() function and context manager are new in 1.1. The
+        example above shows the way to use it to register and de-register
+        drivers in a deterministic and efficient way. Code written for Fiona 1.0
+        will continue to work: opened collections may manage the global driver
+        registry if no other manager is present.
+        
+        Reading Multilayer data
+        -----------------------
+        
+        Collections can also be made from single layers within multilayer files or
+        directories of data. The target layer is specified by name or by its integer
+        index within the file or directory. The ``fiona.listlayers()`` function
+        provides an index ordered list of layer names.
+        
+        .. code-block:: python
+        
+            with fiona.drivers():
+        
+                for layername in fiona.listlayers('docs/data'):
+                    with fiona.open('docs/data', layer=layername) as c:
+                        print(layername, len(c))
+            
+            # Output:
+            # test_uk 48
+        
+        Layer can also be specified by index. In this case, ``layer=0`` and
+        ``layer='test_uk'`` specify the same layer in the data file or directory.
+        
+        .. code-block:: python
+        
+            with fiona.drivers():
+        
+                for i, layername in enumerate(fiona.listlayers('docs/data')):
+                    with fiona.open('docs/data', layer=i) as c:
+                        print(i, layername, len(c))
+            
+            # Output:
+            # 0 test_uk 48
+        
+        Writing Multilayer data
+        -----------------------
+        
+        Multilayer data can be written as well. Layers must be specified by name when
+        writing.
+        
+        .. code-block:: python
+            
+            with fiona.drivers():
+        
+                with open('docs/data/test_uk.shp') as c:
+                    meta = c.meta
+                    f = next(c)
+            
+                with fiona.open('/tmp/foo', 'w', layer='bar', **meta) as c:
+                    c.write(f)
+            
+                print(fiona.listlayers('/tmp/foo'))
+                # Output: ['bar']
+            
+                with fiona.open('/tmp/foo', layer='bar') as c:
+                    print(len(c))
+                    f = next(c)
+                    print(f['geometry']['type'])
+                    print(f['properties'])
+            
+                # Output:
+                # 1
+                # Polygon
+                # {'FIPS_CNTRY': 'UK', 'POP_CNTRY': 60270708.0, 'CAT': 232.0, 
+                #  'AREA': 244820.0, 'CNTRY_NAME': 'United Kingdom'}
+        
+        A view of the /tmp/foo directory will confirm the creation of the new files.
+        
+        .. code-block:: console
+        
+            $ ls /tmp/foo
+            bar.cpg bar.dbf bar.prj bar.shp bar.shx
+        
+        Collections from archives and virtual file systems
+        --------------------------------------------------
+        
+        Zip and Tar archives can be treated as virtual filesystems and Collections can
+        be made from paths and layers within them. In other words, Fiona lets you read
+        and write zipped Shapefiles.
+        
+        .. code-block:: python
+        
+            with fiona.drivers():
+        
+                for i, layername in enumerate(
+                        fiona.listlayers(
+                            '/', 
+                            vfs='zip://docs/data/test_uk.zip')):
+                    with fiona.open(
+                            '/', 
+                            vfs='zip://docs/data/test_uk.zip', 
+                            layer=i) as c:
+                        print(i, layername, len(c))
+            
+            # Output:
+            # 0 test_uk 48
+        
+        Fiona CLI
+        =========
+        
+        Fiona's command line interface, named "fio", is documented at `docs/cli.rst
+        <https://github.com/Toblerity/Fiona/blob/master/docs/cli.rst>`__. Its ``fio
+        info`` pretty prints information about a data file.
+        
+        .. code-block:: console
+        
+            $ fio info docs/data/test_uk.shp
+            { 'bbox': (-8.621389, 49.911659, 1.749444, 60.844444),
+              'count': 48,
+              'crs': { u'datum': u'WGS84', u'no_defs': True, u'proj': u'longlat'},
+              'driver': u'ESRI Shapefile',
+              'schema': { 'geometry': 'Polygon',
+                          'properties': OrderedDict([(u'CAT', 'float:16'), (u'FIPS_CNTRY', 'str:80'), (u'CNTRY_NAME', 'str:80'), (u'AREA', 'float:15.2'), (u'POP_CNTRY', 'float:15.2')])}}
+        
+        Installation
+        ============
+        
+        Fiona requires Python 2.6, 2.7, 3.3, or 3.4 and GDAL/OGR 1.8+. To build from
+        a source distribution you will need a C compiler and GDAL and Python
+        development headers and libraries (libgdal1-dev for Debian/Ubuntu, gdal-dev for
+        CentOS/Fedora).
+        
+        To build from a repository copy, you will also need Cython to build C sources
+        from the project's .pyx files. See the project's requirements-dev.txt file for
+        guidance.
+        
+        The popular `Kyngchaos GDAL frameworks
+        <http://www.kyngchaos.com/software/frameworks#gdal_complete>`__ will satisfy
+        the GDAL/OGR dependency for OS X. Fiona's author uses Homebrew (``brew install
+        gdal``) on OS X.
+        
+        Python Requirements
+        -------------------
+        
+        Fiona depends on the modules ``six`` and ``argparse``. The latter is standard
+        in Python 2.7+. Easy_install and pip will fetch these requirements for you, but
+        users installing Fiona from a Windows installer must get them separately.
+        
+        Unix-like systems
+        -----------------
+        
+        Assuming you're using a virtualenv (if not, skip to the 4th command) and
+        GDAL/OGR libraries, headers, and `gdal-config`_ program are installed to well
+        known locations on your system via your system's package manager (``brew
+        install gdal`` using Homebrew on OS X), installation is this simple::
+        
+          $ mkdir fiona_env
+          $ virtualenv fiona_env
+          $ source fiona_env/bin/activate
+          (fiona_env)$ pip install Fiona
+        
+        If gdal-config is not available or if GDAL/OGR headers and libs aren't
+        installed to a well known location, you must set include dirs, library dirs,
+        and libraries options via the setup.cfg file or setup command line as shown
+        below (using ``git``)::
+        
+          (fiona_env)$ git clone git://github.com/Toblerity/Fiona.git
+          (fiona_env)$ cd Fiona
+          (fiona_env)$ python setup.py build_ext -I/path/to/gdal/include -L/path/to/gdal/lib -lgdal install
+        
+        Windows
+        -------
+        
+        Binary installers are available at
+        http://www.lfd.uci.edu/~gohlke/pythonlibs/#fiona and coming eventually to PyPI.
+        
+        Development and testing
+        =======================
+        
+        Building from the source requires Cython. Tests require Nose. If the GDAL/OGR
+        libraries, headers, and `gdal-config`_ program are installed to well known
+        locations on your system (via your system's package manager), you can do this::
+        
+          (fiona_env)$ git clone git://github.com/Toblerity/Fiona.git
+          (fiona_env)$ cd Fiona
+          (fiona_env)$ python setup.py develop
+          (fiona_env)$ nosetests
+        
+        If you have a non-standard environment, you'll need to specify the include and
+        lib dirs and GDAL library on the command line::
+        
+          (fiona_env)$ python setup.py build_ext -I/path/to/gdal/include -L/path/to/gdal/lib -lgdal develop
+          (fiona_env)$ nosetests
+        
+        .. _OGR: http://www.gdal.org/ogr
+        .. _pyproj: http://pypi.python.org/pypi/pyproj/
+        .. _Rtree: http://pypi.python.org/pypi/Rtree/
+        .. _Shapely: http://pypi.python.org/pypi/Shapely/
+        .. _gdal-config: http://www.gdal.org/gdal-config.html
+        
+        
+        Changes
+        =======
+        
+        1.4.4 (2014-10-13)
+        ------------------
+        - Fix accidental requirement on GDAL 1.10 introduced in 1.4.3 (#164).
+        
+        1.4.3 (2014-10-10)
+        ------------------
+        - Add support for geopackage format (#160).
+        - Add -f and --format aliases for --driver in CLI (#162).
+        - Add --version option and env command to CLI.
+        
+        1.4.2 (2014-10-03)
+        ------------------
+        - --dst-crs and --src-crs options for fio cat and collect (#159).
+        
+        1.4.1 (2014-09-30)
+        ------------------
+        - Fix encoding bug in collection's __getitem__ (#153).
+        
+        1.4.0 (2014-09-22)
+        ------------------
+        - Add fio cat and fio collect commands (#150).
+        - Return of Python 2.6 compatibility (#148).
+        - Improved CRS support (#149).
+        
+        1.3.0 (2014-09-17)
+        ------------------
+        - Add single metadata item accessors to fio inf (#142).
+        - Move fio to setuptools entry point (#142).
+        - Add fio dump and load commands (#143).
+        - Remove fio translate command.
+        
+        1.2.0 (2014-09-02)
+        ------------------
+        - Always show property width and precision in schema (#123).
+        - Write datetime properties of features (#125).
+        - Reset spatial filtering in filter() (#129).
+        - Accept datetime.date objects as feature properties (#130).
+        - Add slicing to collection iterators (#132).
+        - Add geometry object masks to collection iterators (#136).
+        - Change source layout to match Shapely and Rasterio (#138).
+        
+        1.1.6 (2014-07-23)
+        ------------------
+        - Implement Collection __getitem__() (#112).
+        - Leave GDAL finalization to the DLL's destructor (#113).
+        - Add Collection keys(), values(), items(), __contains__() (#114).
+        - CRS bug fix (#116).
+        - Add fio CLI program.
+          
+        1.1.5 (2014-05-21)
+        ------------------
+        - Addition of cpl_errs context manager (#108).
+        - Check for NULLs with '==' test instead of 'is' (#109).
+        - Open auxiliary files with encoding='utf-8' in setup for Python 3 (#110).
+        
+        1.1.4 (2014-04-03)
+        ------------------
+        - Convert 'long' in schemas to 'int' (#101).
+        - Carefully map Python schema to the possibly munged internal schema (#105).
+        - Allow writing of features with geometry: None (#71).
+        
+        1.1.3 (2014-03-23)
+        ------------------
+        - Always register all GDAL and OGR drivers when entering the DriverManager
+          context (#80, #92).
+        - Skip unsupported field types with a warning (#91).
+        - Allow OGR config options to be passed to fiona.drivers() (#90, #93).
+        - Add a bounds() function (#100).
+        - Turn on GPX driver.
+        
+        1.1.2 (2014-02-14)
+        ------------------
+        - Remove collection slice left in dumpgj (#88).
+        
+        1.1.1 (2014-02-02)
+        ------------------
+        - Add an interactive file inspector like the one in rasterio.
+        - CRS to_string bug fix (#83).
+        
+        1.1 (2014-01-22)
+        ----------------
+        - Use a context manager to manage drivers (#78), a backwards compatible but
+          big change. Fiona is now compatible with rasterio and plays better with the
+          osgeo package.
+        
+        1.0.3 (2014-01-21)
+        ------------------
+        - Fix serialization of +init projections (#69).
+        
+        1.0.2 (2013-09-09)
+        ------------------
+        - Smarter, better test setup (#65, #66, #67).
+        - Add type='Feature' to records read from a Collection (#68).
+        - Skip geometry validation when using GeoJSON driver (#61).
+        - Dumpgj file description reports record properties as a list (as in
+          dict.items()) instead of a dict.
+        
+        1.0.1 (2013-08-16)
+        ------------------
+        - Allow ordering of written fields and preservation of field order when
+          reading (#57).
+        
+        1.0 (2013-07-30)
+        -----------------
+        - Add prop_type() function.
+        - Allow UTF-8 encoded paths for Python 2 (#51). For Python 3, paths must
+          always be str, never bytes.
+        - Remove encoding from collection.meta, it's a file creation option only.
+        - Support for linking GDAL frameworks (#54).
+        
+        0.16.1 (2013-07-02)
+        -------------------
+        - Add listlayers, open, prop_width to __init__py:__all__.
+        - Reset reading of OGR layer whenever we ask for a collection iterator (#49).
+        
+        0.16 (2013-06-24)
+        -----------------
+        - Add support for writing layers to multi-layer files.
+        - Add tests to reach 100% Python code coverage.
+        
+        0.15 (2013-06-06)
+        -----------------
+        - Get and set numeric field widths (#42).
+        - Add support for multi-layer data sources (#17).
+        - Add support for zip and tar virtual filesystems (#45).
+        - Add listlayers() function.
+        - Add GeoJSON to list of supported formats (#47).
+        - Allow selection of layers by index or name.
+        
+        0.14 (2013-05-04)
+        -----------------
+        - Add option to add JSON-LD in the dumpgj program.
+        - Compare values to six.string_types in Collection constructor.
+        - Add encoding to Collection.meta.
+        - Document dumpgj in README.
+        
+        0.13 (2013-04-30)
+        -----------------
+        - Python 2/3 compatibility in a single package. Pythons 2.6, 2.7, 3.3 now supported.
+        
+        0.12.1 (2013-04-16)
+        -------------------
+        - Fix messed up linking of README in sdist (#39).
+        
+        0.12 (2013-04-15)
+        -----------------
+        - Fix broken installation of extension modules (#35).
+        - Log CPL errors at their matching Python log levels.
+        - Use upper case for encoding names within OGR, lower case in Python.
+        
+        0.11 (2013-04-14)
+        -----------------
+        - Cythonize .pyx files (#34).
+        - Work with or around OGR's internal recoding of record data (#35).
+        - Fix bug in serialization of int/float PROJ.4 params.
+        
+        0.10 (2013-03-23)
+        -----------------
+        - Add function to get the width of str type properties.
+        - Handle validation and schema representation of 3D geometry types (#29).
+        - Return {'geometry': None} in the case of a NULL geometry (#31).
+        
+        0.9.1 (2013-03-07)
+        ------------------
+        - Silence the logger in ogrext.so (can be overridden).
+        - Allow user specification of record field encoding (like 'Windows-1252' for
+          Natural Earth shapefiles) to help when OGR can't detect it.
+        
+        0.9 (2013-03-06)
+        ----------------
+        - Accessing file metadata (crs, schema, bounds) on never inspected closed files
+          returns None without exceptions.
+        - Add a dict of supported_drivers and their supported modes.
+        - Raise ValueError for unsupported drivers and modes.
+        - Remove asserts from ogrext.pyx.
+        - Add validate_record method to collections.
+        - Add helpful coordinate system functions to fiona.crs.
+        - Promote use of fiona.open over fiona.collection.
+        - Handle Shapefile's mix of LineString/Polygon and multis (#18).
+        - Allow users to specify width of shapefile text fields (#20).
+        
+        0.8 (2012-02-21)
+        ----------------
+        - Replaced .opened attribute with .closed (product of collection() is always
+          opened). Also a __del__() which will close a Collection, but still not to be
+          depended upon.
+        - Added writerecords method.
+        - Added a record buffer and better counting of records in a collection.
+        - Manage one iterator per collection/session.
+        - Added a read-only bounds property.
+        
+        0.7 (2012-01-29)
+        ----------------
+        - Initial timezone-naive support for date, time, and datetime fields. Don't use
+          these field types if you can avoid them. RFC 3339 datetimes in a string field
+          are much better.
+        
+        0.6.2 (2012-01-10)
+        ------------------
+        - Diagnose and set the driver property of collection in read mode.
+        - Fail if collection paths are not to files. Multi-collection workspaces are
+          a (maybe) TODO.
+        
+        0.6.1 (2012-01-06)
+        ------------------
+        - Handle the case of undefined crs for disk collections.
+        
+        0.6 (2012-01-05)
+        ----------------
+        - Support for collection coordinate reference systems based on Proj4.
+        - Redirect OGR warnings and errors to the Fiona log.
+        - Assert that pointers returned from the ograpi functions are not NULL before
+          using.
+        
+        0.5 (2011-12-19)
+        ----------------
+        - Support for reading and writing collections of any geometry type.
+        - Feature and Geometry classes replaced by mappings (dicts).
+        - Removal of Workspace class.
+        
+        0.2 (2011-09-16)
+        ----------------
+        - Rename WorldMill to Fiona.
+        
+        0.1.1 (2008-12-04)
+        ------------------
+        - Support for features with no geometry.
+        
+        
+        Credits
+        =======
+        
+        Fiona is written by:
+        
+        * Sean Gillies (https://github.com/sgillies)
+        
+        With contributions by:
+        
+        * Joshua Arnott (https://github.com/snorfalorpagus)
+        * René Buffat (https://github.com/rbuffat)
+        * Michele Citterio (https://github.com/citterio)
+        * Stefano Costa (https://github.com/steko)
+        * Ludovic Delauné (https://github.com/ldgeo)
+        * Kelsey Jordahl (https://github.com/kjordahl)
+        * Frédéric Junod (https://github.com/fredj)
+        * jwass (https://github.com/jwass)
+        * Brandon Liu (https://github.com/bdon)
+        * lordi (https://github.com/lordi)
+        * Ariel Núñez (https://github.com/ingenieroariel)
+        * Oliver Tonnhofer (https://github.com/olt)
+        * Brendan Wards (https://github.com/brendan-ward)
+        * Michael Weisman (https://github.com/mweisman)
+        * Andy Wilson (https://github.com/wilsaj)
+        
+        Fiona would not be possible without the great work of Frank Warmerdam and other
+        GDAL/OGR developers.
+        
+        Some portions of this work were supported by a grant (for Pleiades_) from the
+        U.S. National Endowment for the Humanities (http://www.neh.gov).
+        
+        .. _Pleiades: http://pleiades.stoa.org
+        
+        
+Keywords: gis vector feature data
+Platform: UNKNOWN
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: Intended Audience :: Science/Research
+Classifier: License :: OSI Approved :: BSD License
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 2
+Classifier: Programming Language :: Python :: 3
+Classifier: Topic :: Scientific/Engineering :: GIS
diff --git a/README.rst b/README.rst
new file mode 100644
index 0000000..6690d32
--- /dev/null
+++ b/README.rst
@@ -0,0 +1,278 @@
+=====
+Fiona
+=====
+
+Fiona is OGR's neat, nimble, no-nonsense API for Python programmers.
+
+.. image:: https://travis-ci.org/Toblerity/Fiona.png?branch=master   
+   :target: https://travis-ci.org/Toblerity/Fiona
+
+Fiona is designed to be simple and dependable. It focuses on reading and
+writing data in standard Python IO style and relies upon familiar Python types
+and protocols such as files, dictionaries, mappings, and iterators instead of
+classes specific to OGR. Fiona can read and write real-world data using
+multi-layered GIS formats and zipped virtual file systems and integrates
+readily with other Python GIS packages such as pyproj_, Rtree_, and Shapely_.
+
+For more details, see:
+
+* Fiona `home page <https://github.com/Toblerity/Fiona>`__
+* Fiona `docs and manual <http://toblerity.github.com/fiona/>`__
+* Fiona `examples <https://github.com/Toblerity/Fiona/tree/master/examples>`__
+
+Usage
+=====
+
+Collections
+-----------
+
+Records are read from and written to ``file``-like `Collection` objects
+returned from the ``fiona.open()`` function.  Records are mappings modeled on
+the GeoJSON format. They don't have any spatial methods of their own, so if you
+want to do anything fancy with them you will probably need Shapely or something
+like it. Here is an example of using Fiona to read some records from one data
+file, change their geometry attributes, and write them to a new data file.
+
+.. code-block:: python
+
+    import fiona
+  
+    # Register format drivers with a context manager
+    
+    with fiona.drivers():
+
+        # Open a file for reading. We'll call this the "source."
+        
+        with fiona.open('docs/data/test_uk.shp') as source:
+
+            # The file we'll write to, the "sink", must be initialized
+            # with a coordinate system, a format driver name, and
+            # a record schema.  We can get initial values from the open
+            # collection's ``meta`` property and then modify them as
+            # desired.
+
+            meta = source.meta
+            meta['schema']['geometry'] = 'Point'
+
+            # Open an output file, using the same format driver and
+            # coordinate reference system as the source. The ``meta``
+            # mapping fills in the keyword parameters of fiona.open().
+            
+            with fiona.open('test_write.shp', 'w', **meta) as sink:
+
+                # Process only the records intersecting a box.
+                for f in source.filter(bbox=(-5.0, 55.0, 0.0, 60.0)):
+          
+                    # Get a point on the boundary of the record's
+                    # geometry.
+                    
+                    f['geometry'] = {
+                        'type': 'Point',
+                        'coordinates': f['geometry']['coordinates'][0][0]}
+              
+                    # Write the record out.
+                    
+                    sink.write(f)
+              
+        # The sink's contents are flushed to disk and the file is
+        # closed when its ``with`` block ends. This effectively
+        # executes ``sink.flush(); sink.close()``.
+
+    # At the end of the ``with fiona.drivers()`` block, context
+    # manager exits and all drivers are de-registered.
+
+The fiona.drivers() function and context manager are new in 1.1. The
+example above shows the way to use it to register and de-register
+drivers in a deterministic and efficient way. Code written for Fiona 1.0
+will continue to work: opened collections may manage the global driver
+registry if no other manager is present.
+
+Reading Multilayer data
+-----------------------
+
+Collections can also be made from single layers within multilayer files or
+directories of data. The target layer is specified by name or by its integer
+index within the file or directory. The ``fiona.listlayers()`` function
+provides an index ordered list of layer names.
+
+.. code-block:: python
+
+    with fiona.drivers():
+
+        for layername in fiona.listlayers('docs/data'):
+            with fiona.open('docs/data', layer=layername) as c:
+                print(layername, len(c))
+    
+    # Output:
+    # test_uk 48
+
+Layer can also be specified by index. In this case, ``layer=0`` and
+``layer='test_uk'`` specify the same layer in the data file or directory.
+
+.. code-block:: python
+
+    with fiona.drivers():
+
+        for i, layername in enumerate(fiona.listlayers('docs/data')):
+            with fiona.open('docs/data', layer=i) as c:
+                print(i, layername, len(c))
+    
+    # Output:
+    # 0 test_uk 48
+
+Writing Multilayer data
+-----------------------
+
+Multilayer data can be written as well. Layers must be specified by name when
+writing.
+
+.. code-block:: python
+    
+    with fiona.drivers():
+
+        with open('docs/data/test_uk.shp') as c:
+            meta = c.meta
+            f = next(c)
+    
+        with fiona.open('/tmp/foo', 'w', layer='bar', **meta) as c:
+            c.write(f)
+    
+        print(fiona.listlayers('/tmp/foo'))
+        # Output: ['bar']
+    
+        with fiona.open('/tmp/foo', layer='bar') as c:
+            print(len(c))
+            f = next(c)
+            print(f['geometry']['type'])
+            print(f['properties'])
+    
+        # Output:
+        # 1
+        # Polygon
+        # {'FIPS_CNTRY': 'UK', 'POP_CNTRY': 60270708.0, 'CAT': 232.0, 
+        #  'AREA': 244820.0, 'CNTRY_NAME': 'United Kingdom'}
+
+A view of the /tmp/foo directory will confirm the creation of the new files.
+
+.. code-block:: console
+
+    $ ls /tmp/foo
+    bar.cpg bar.dbf bar.prj bar.shp bar.shx
+
+Collections from archives and virtual file systems
+--------------------------------------------------
+
+Zip and Tar archives can be treated as virtual filesystems and Collections can
+be made from paths and layers within them. In other words, Fiona lets you read
+and write zipped Shapefiles.
+
+.. code-block:: python
+
+    with fiona.drivers():
+
+        for i, layername in enumerate(
+                fiona.listlayers(
+                    '/', 
+                    vfs='zip://docs/data/test_uk.zip')):
+            with fiona.open(
+                    '/', 
+                    vfs='zip://docs/data/test_uk.zip', 
+                    layer=i) as c:
+                print(i, layername, len(c))
+    
+    # Output:
+    # 0 test_uk 48
+
+Fiona CLI
+=========
+
+Fiona's command line interface, named "fio", is documented at `docs/cli.rst
+<https://github.com/Toblerity/Fiona/blob/master/docs/cli.rst>`__. Its ``fio
+info`` pretty prints information about a data file.
+
+.. code-block:: console
+
+    $ fio info docs/data/test_uk.shp
+    { 'bbox': (-8.621389, 49.911659, 1.749444, 60.844444),
+      'count': 48,
+      'crs': { u'datum': u'WGS84', u'no_defs': True, u'proj': u'longlat'},
+      'driver': u'ESRI Shapefile',
+      'schema': { 'geometry': 'Polygon',
+                  'properties': OrderedDict([(u'CAT', 'float:16'), (u'FIPS_CNTRY', 'str:80'), (u'CNTRY_NAME', 'str:80'), (u'AREA', 'float:15.2'), (u'POP_CNTRY', 'float:15.2')])}}
+
+Installation
+============
+
+Fiona requires Python 2.6, 2.7, 3.3, or 3.4 and GDAL/OGR 1.8+. To build from
+a source distribution you will need a C compiler and GDAL and Python
+development headers and libraries (libgdal1-dev for Debian/Ubuntu, gdal-dev for
+CentOS/Fedora).
+
+To build from a repository copy, you will also need Cython to build C sources
+from the project's .pyx files. See the project's requirements-dev.txt file for
+guidance.
+
+The popular `Kyngchaos GDAL frameworks
+<http://www.kyngchaos.com/software/frameworks#gdal_complete>`__ will satisfy
+the GDAL/OGR dependency for OS X. Fiona's author uses Homebrew (``brew install
+gdal``) on OS X.
+
+Python Requirements
+-------------------
+
+Fiona depends on the modules ``six`` and ``argparse``. The latter is standard
+in Python 2.7+. Easy_install and pip will fetch these requirements for you, but
+users installing Fiona from a Windows installer must get them separately.
+
+Unix-like systems
+-----------------
+
+Assuming you're using a virtualenv (if not, skip to the 4th command) and
+GDAL/OGR libraries, headers, and `gdal-config`_ program are installed to well
+known locations on your system via your system's package manager (``brew
+install gdal`` using Homebrew on OS X), installation is this simple::
+
+  $ mkdir fiona_env
+  $ virtualenv fiona_env
+  $ source fiona_env/bin/activate
+  (fiona_env)$ pip install Fiona
+
+If gdal-config is not available or if GDAL/OGR headers and libs aren't
+installed to a well known location, you must set include dirs, library dirs,
+and libraries options via the setup.cfg file or setup command line as shown
+below (using ``git``)::
+
+  (fiona_env)$ git clone git://github.com/Toblerity/Fiona.git
+  (fiona_env)$ cd Fiona
+  (fiona_env)$ python setup.py build_ext -I/path/to/gdal/include -L/path/to/gdal/lib -lgdal install
+
+Windows
+-------
+
+Binary installers are available at
+http://www.lfd.uci.edu/~gohlke/pythonlibs/#fiona and coming eventually to PyPI.
+
+Development and testing
+=======================
+
+Building from the source requires Cython. Tests require Nose. If the GDAL/OGR
+libraries, headers, and `gdal-config`_ program are installed to well known
+locations on your system (via your system's package manager), you can do this::
+
+  (fiona_env)$ git clone git://github.com/Toblerity/Fiona.git
+  (fiona_env)$ cd Fiona
+  (fiona_env)$ python setup.py develop
+  (fiona_env)$ nosetests
+
+If you have a non-standard environment, you'll need to specify the include and
+lib dirs and GDAL library on the command line::
+
+  (fiona_env)$ python setup.py build_ext -I/path/to/gdal/include -L/path/to/gdal/lib -lgdal develop
+  (fiona_env)$ nosetests
+
+.. _OGR: http://www.gdal.org/ogr
+.. _pyproj: http://pypi.python.org/pypi/pyproj/
+.. _Rtree: http://pypi.python.org/pypi/Rtree/
+.. _Shapely: http://pypi.python.org/pypi/Shapely/
+.. _gdal-config: http://www.gdal.org/gdal-config.html
+
diff --git a/VERSION.txt b/VERSION.txt
new file mode 100644
index 0000000..e1df5de
--- /dev/null
+++ b/VERSION.txt
@@ -0,0 +1 @@
+1.4.4
\ No newline at end of file
diff --git a/benchmark.py b/benchmark.py
new file mode 100644
index 0000000..2fecdd8
--- /dev/null
+++ b/benchmark.py
@@ -0,0 +1,51 @@
+
+import timeit
+from fiona import collection
+from osgeo import ogr
+
+PATH = 'docs/data/test_uk.shp'
+NAME = 'test_uk'
+
+# Fiona
+s = """
+with collection(PATH, "r") as c:
+    for f in c:
+        id = f["id"]
+"""
+t = timeit.Timer(
+    stmt=s,
+    setup='from __main__ import collection, PATH, NAME'
+    )
+print "Fiona 0.5"
+print "%.2f usec/pass" % (1000000 * t.timeit(number=1000)/1000)
+print
+
+# OGR
+s = """
+source = ogr.Open(PATH)
+layer = source.GetLayerByName(NAME)
+schema = []
+ldefn = layer.GetLayerDefn()
+for n in range(ldefn.GetFieldCount()):
+    fdefn = ldefn.GetFieldDefn(n)
+    schema.append((fdefn.name, fdefn.type))
+layer.ResetReading()
+while 1:
+    feature = layer.GetNextFeature()
+    if not feature:
+        break
+    id = feature.GetFID()
+    props = {}
+    for i in range(feature.GetFieldCount()):
+        props[schema[i][0]] = feature.GetField(i)
+    geometry = feature.GetGeometryRef()
+    feature.Destroy()
+source.Destroy()
+"""
+print "osgeo.ogr 1.7.2"
+t = timeit.Timer(
+    stmt=s,
+    setup='from __main__ import ogr, PATH, NAME'
+    )
+print "%.2f usec/pass" % (1000000 * t.timeit(number=1000)/1000)
+
diff --git a/docs/README.rst b/docs/README.rst
new file mode 100644
index 0000000..c2703a2
--- /dev/null
+++ b/docs/README.rst
@@ -0,0 +1,5 @@
+.. include:: ../README.rst
+
+.. include:: ../CHANGES.txt
+
+.. include:: ../CREDITS.txt
diff --git a/docs/cli.rst b/docs/cli.rst
new file mode 100644
index 0000000..d33d87c
--- /dev/null
+++ b/docs/cli.rst
@@ -0,0 +1,223 @@
+Command Line Interface
+======================
+
+Fiona's new command line interface is a program named "fio".
+
+.. code-block:: console
+
+    Usage: fio [OPTIONS] COMMAND [ARGS]...
+
+      Fiona command line interface.
+
+    Options:
+      -v, --verbose  Increase verbosity.
+      -q, --quiet    Decrease verbosity.
+      --help         Show this message and exit.
+
+    Commands:
+      cat      Concatenate and print the features of datasets
+      collect  Collect a sequence of features.
+      dump     Dump a dataset to GeoJSON.
+      info     Print information about a dataset.
+      insp     Open a dataset and start an interpreter.
+      load     Load GeoJSON to a dataset in another format.
+
+It is developed using the ``click`` package and is new in 1.1.6.
+
+cat
+---
+
+The cat command concatenates the features of one or more datasets and prints
+them as a `JSON text sequence
+<http://tools.ietf.org/html/draft-ietf-json-text-sequence-07>`__ of features.
+In other words: GeoJSON feature objects, possibly pretty printed, separated by
+ASCII RS (\x1e) chars. LF-separated sequences with no pretty printing are
+optionally available using ``--x-json-seq-no-rs``.
+
+The output of ``fio cat`` can be piped to ``fio load`` to create new
+concatenated datasets.
+
+.. code-block:: console
+
+    $ fio cat docs/data/test_uk.shp docs/data/test_uk.shp \
+    > | fio load /tmp/double.shp --driver Shapefile
+    $ fio info /tmp/double.shp --count
+    96
+    $ fio info docs/data/test_uk.shp --count
+    48
+
+New in 1.4.0.
+
+collect
+-------
+
+The collect command takes a JSON text sequence of GeoJSON feature objects, such
+as the output of ``fio cat`` and writes a GeoJSON feature collection.
+
+.. code-block:: console
+
+    $ fio cat docs/data/test_uk.shp docs/data/test_uk.shp \
+    > | fio collect > /tmp/collected.json
+    $ fio info /tmp/collected.json --count
+    96
+
+New in 1.4.0.
+
+dump
+----
+
+The dump command reads a vector dataset and writes a GeoJSON feature collection
+to stdout. Its output can be piped to ``rio load`` (see below).
+
+.. code-block:: console
+
+    $ fio dump docs/data/test_uk.shp --indent 2 --precision 2 | head
+    {
+      "features": [
+        {
+          "geometry": {
+            "coordinates": [
+              [
+                [
+                  0.9,
+                  51.36
+                ],
+
+You can optionally dump out JSON text sequences using ``--x-json-seq``. Since
+version 1.4.0, ``fio cat`` is the better tool for generating sequences.
+
+.. code-block:: console
+
+    $ fio dump docs/data/test_uk.shp --precision 2 --x-json-seq | head -n 2
+    {"geometry": {"coordinates": [[[0.9, 51.36], [0.89, 51.36], [0.79, 51.37], [0.78, 51.37], [0.77, 51.38], [0.76, 51.38], [0.75, 51.39], [0.74, 51.4], [0.73, 51.41], [0.74, 51.43], [0.75, 51.44], [0.76, 51.44], [0.79, 51.44], [0.89, 51.42], [0.9, 51.42], [0.91, 51.42], [0.93, 51.4], [0.94, 51.39], [0.94, 51.38], [0.95, 51.38], [0.95, 51.37], [0.95, 51.37], [0.94, 51.37], [0.9, 51.36], [0.9, 51.36]]], "type": "Polygon"}, "id": "0", "properties": {"AREA": 244820.0, "CAT": 232.0, "CNTRY_N [...]
+    {"geometry": {"coordinates": [[[-4.66, 51.16], [-4.67, 51.16], [-4.67, 51.16], [-4.67, 51.17], [-4.67, 51.19], [-4.67, 51.19], [-4.67, 51.2], [-4.66, 51.2], [-4.66, 51.19], [-4.65, 51.16], [-4.65, 51.16], [-4.65, 51.16], [-4.66, 51.16]]], "type": "Polygon"}, "id": "1", "properties": {"AREA": 244820.0, "CAT": 232.0, "CNTRY_NAME": "United Kingdom", "FIPS_CNTRY": "UK", "POP_CNTRY": 60270708.0}, "type": "Feature"}
+
+
+info
+----
+
+The info command prints information about a dataset as a JSON object.
+
+.. code-block:: console
+
+    $ fio info docs/data/test_uk.shp --indent 2
+    {
+      "count": 48,
+      "crs": "+datum=WGS84 +no_defs +proj=longlat",
+      "driver": "ESRI Shapefile",
+      "bounds": [
+        -8.621389,
+        49.911659,
+        1.749444,
+        60.844444
+      ],
+      "schema": {
+        "geometry": "Polygon",
+        "properties": {
+          "CAT": "float:16",
+          "FIPS_CNTRY": "str:80",
+          "CNTRY_NAME": "str:80",
+          "AREA": "float:15.2",
+          "POP_CNTRY": "float:15.2"
+        }
+      }
+    }
+
+You can process this JSON using, e.g., 
+`underscore-cli <https://github.com/ddopson/underscore-cli>`__.
+
+.. code-block:: console
+
+    $ fio info docs/data/test_uk.shp | underscore extract count
+    48
+
+You can also optionally get single info items as plain text (not JSON) 
+strings
+
+.. code-block:: console
+
+    $ fio info docs/data/test_uk.shp --count
+    48
+    $ fio info docs/data/test_uk.shp --bounds
+    -8.621389 49.911659 1.749444 60.844444
+
+load
+----
+
+The load command reads GeoJSON features from stdin and writes them to a vector
+dataset using another format.
+
+.. code-block:: console
+
+    $ fio dump docs/data/test_uk.shp \
+    > | fio load /tmp/test.shp --driver Shapefile
+
+This command also supports GeoJSON text sequences. RS-separated sequences will
+be detected. If you want to load LF-separated sequences, you must specfiy
+``--x-json-seq``.
+
+.. code-block:: console
+
+    $ fio cat docs/data/test_uk.shp | fio load /tmp/foo.shp --driver Shapefile
+    $ fio info /tmp/foo.shp --indent 2
+    {
+      "count": 48,
+      "crs": "+datum=WGS84 +no_defs +proj=longlat",
+      "driver": "ESRI Shapefile",
+      "bounds": [
+        -8.621389,
+        49.911659,
+        1.749444,
+        60.844444
+      ],
+      "schema": {
+        "geometry": "Polygon",
+        "properties": {
+          "AREA": "float:24.15",
+          "CNTRY_NAME": "str:80",
+          "POP_CNTRY": "float:24.15",
+          "FIPS_CNTRY": "str:80",
+          "CAT": "float:24.15"
+        }
+      }
+    }
+
+The underscore-cli process command is another way of turning a GeoJSON feature
+collection into a feature sequence.
+
+.. code-block:: console
+
+    $ fio dump docs/data/test_uk.shp \
+    > | underscore process \
+    > 'each(data.features,function(o){console.log(JSON.stringify(o))})' \
+    > | fio load /tmp/test-seq.shp --x-json-seq --driver Shapefile
+
+
+Coordinate Reference System Transformations
+-------------------------------------------
+
+The ``fio cat`` command can optionally transform feature geometries to a new
+coordinate reference system specified with ``--dst_crs``. The ``fio collect``
+command can optionally transform from a coordinate reference system specified
+with ``--src_crs`` to the default WGS84 GeoJSON CRS. Like collect, ``fio load``
+can accept non-WGS84 features, but as it can write files in formats other than
+GeoJSON, you can optionally specify a ``--dst_crs``. For example, the WGS84
+features read from docs/data/test_uk.shp,
+
+.. code-block:: console
+
+     $ fio cat docs/data/test_uk.shp --dst_crs EPSG:3857 \
+     > | fio collect --src_crs EPSG:3857 > /tmp/foo.json
+
+make a detour through EPSG:3857 (Web Mercator) and are transformed back to WGS84
+by fio cat. The following,
+
+.. code-block:: console
+
+    $ fio cat docs/data/test_uk.shp --dst_crs EPSG:3857 \
+    > | fio load --src_crs EPSG:3857 --dst_crs EPSG:4326 --driver Shapefile \
+    > /tmp/foo.shp
+
+does the same thing, but for ESRI Shapefile output.
+
+New in 1.4.2.
diff --git a/docs/data/test_uk.dbf b/docs/data/test_uk.dbf
new file mode 100644
index 0000000..82e8484
Binary files /dev/null and b/docs/data/test_uk.dbf differ
diff --git a/docs/data/test_uk.prj b/docs/data/test_uk.prj
new file mode 100644
index 0000000..a30c00a
--- /dev/null
+++ b/docs/data/test_uk.prj
@@ -0,0 +1 @@
+GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]
\ No newline at end of file
diff --git a/docs/data/test_uk.shp b/docs/data/test_uk.shp
new file mode 100644
index 0000000..cbd42b6
Binary files /dev/null and b/docs/data/test_uk.shp differ
diff --git a/docs/data/test_uk.shx b/docs/data/test_uk.shx
new file mode 100644
index 0000000..fd2b15d
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diff --git a/docs/encoding.txt b/docs/encoding.txt
new file mode 100644
index 0000000..6b7911c
--- /dev/null
+++ b/docs/encoding.txt
@@ -0,0 +1,59 @@
+=========================
+Fiona and String Encoding
+=========================
+
+Reading
+-------
+
+With Fiona, all 'str' type record attributes are unicode strings. The source
+data is encoded in some way. It might be a standard encoding (ISO-8859-1 or
+UTF-8) or it might be a format-specific encoding. How do we get from encoded
+strings to Python unicode? ::
+
+  encoded File | (decode?) OGR (encode?) | (decode) Fiona
+  
+                E_f           R           E_i
+
+The internal encoding `E_i` is used by the ``FeatureBuilder`` class to create
+Fiona's record dicts. `E_f` is the encoding of the data file. `R` is ``True``
+if OGR is recoding record attribute values to UTF-8 (a recent feature that
+isn't implemented for all format drivers, hence the question marks in the
+sketch above), else ``False``.
+
+The value of E_i is determined like this::
+
+  E_i = (R and 'utf-8') or E_f
+
+In the real world of sloppy data, we may not know the exact encoding of the
+data file. Fiona's best guess at it is this::
+
+  E_f = E_u or (R and E_o) or (S and 'iso-8859-1') or E_p
+
+`E_u`, here, is any encoding provided by the programmer (through the
+``Collection`` constructor). `E_o` is an encoding detected by OGR (which
+doesn't provide an API to get the detected encoding). `S` is ``True`` if the 
+file is a Shapefile (because that's the format default). `E_p` is
+locale.getpreferredencoding().
+
+Bottom line: if you know that your data file has an encoding other than
+ISO-8859-1, specify it. If you don't know what the encoding is, you can let the
+format driver try to figure it out (Requires GDAL 1.9.1+).
+
+Writing
+-------
+
+On the writing side::
+
+  Fiona (encode) | (decode?) OGR (encode?) | encoded File
+  
+                E_i           R           E_f
+
+We derive `E_i` from `R` and `E_f` again as above. `E_f` is::
+
+  E_f = E_u or (S and 'iso-8859-1') or E_p
+
+Appending
+---------
+
+The diagram is the same as above, but `E_f` is as in the Reading section.
+
diff --git a/docs/index.rst b/docs/index.rst
new file mode 100644
index 0000000..a3bda38
--- /dev/null
+++ b/docs/index.rst
@@ -0,0 +1,19 @@
+Fiona Documentation Contents
+============================
+
+.. toctree::
+   :maxdepth: 2
+
+   README
+   User Manual <manual>
+   API Documentation <modules>
+   CLI Documentation <cli>
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+
diff --git a/docs/manual.rst b/docs/manual.rst
new file mode 100644
index 0000000..3d986eb
--- /dev/null
+++ b/docs/manual.rst
@@ -0,0 +1,1222 @@
+=====================
+The Fiona User Manual
+=====================
+
+:Author: Sean Gillies, <sean.gillies at gmail.com>
+:Version: |release|
+:Date: |today|
+:Copyright: 
+  This work is licensed under a `Creative Commons Attribution 3.0
+  United States License`__.
+
+.. __: http://creativecommons.org/licenses/by/3.0/us/
+
+:Abstract:
+  Fiona is OGR's neat, nimble, no-nonsense API. This document explains how to
+  use the Fiona package for reading and writing geospatial data files. Python
+  3 is used in examples. See the `README <README.html>`__ for installation and
+  quick start instructions.
+
+.. sectnum::
+
+.. _intro:
+
+Introduction
+============
+
+:dfn:`Geographic information systems` (GIS) help us plan, react to, and
+understand changes in our physical, political, economic, and cultural
+landscapes. A generation ago, GIS was something done only by major institutions
+like nations and cities, but it's become ubiquitous today thanks to accurate
+and inexpensive global positioning systems, commoditization of satellite
+imagery, and open source software.
+
+The kinds of data in GIS are roughly divided into :dfn:`rasters` representing
+continuous scalar fields (land surface temperature or elevation, for example)
+and :dfn:`vectors` representing discrete entities like roads and administrative
+boundaries. Fiona is concerned exclusively with the latter. It is a Python
+wrapper for vector data access functions from the `OGR
+<http://www.gdal.org/ogr/>`_ library.  A very simple wrapper for minimalists.
+It reads data records from files as GeoJSON-like mappings and writes the same
+kind of mappings as records back to files. That's it. There are no layers, no
+cursors, no geometric operations, no transformations between coordinate
+systems, no remote method calls; all these concerns are left to other Python
+packages such as :py:mod:`Shapely <https://github.com/Toblerity/Shapely>` and
+:py:mod:`pyproj <http://code.google.com/p/pyproj/>` and Python language
+protocols. Why? To eliminate unnecessary complication. Fiona aims to be simple
+to understand and use, with no gotchas.
+
+Please understand this: Fiona is designed to excel in a certain range of tasks
+and is less optimal in others. Fiona trades memory and speed for simplicity and
+reliability. Where OGR's Python bindings (for example) use C pointers, Fiona
+copies vector data from the data source to Python objects.  These are simpler
+and safer to use, but more memory intensive. Fiona's performance is relatively
+more slow if you only need access to a single record field – and of course if
+you just want to reproject or filter data files, nothing beats the
+:command:`ogr2ogr` program – but Fiona's performance is much better than OGR's
+Python bindings if you want *all* fields and coordinates of a record. The
+copying is a constraint, but it simplifies programs. With Fiona, you don't have
+to track references to C objects to avoid crashes, and you can work with vector
+data using familiar Python mapping accessors. Less worry, less time spent
+reading API documentation.
+
+Rules of Thumb
+--------------
+
+In what cases would you benefit from using Fiona?
+
+* If the features of interest are from or destined for a file in a non-text
+  format like ESRI Shapefiles, Mapinfo TAB files, etc.
+* If you're more interested in the values of many feature properties than in
+  a single property's value.
+* If you're more interested in all the coordinate values of a feature's
+  geometry than in a single value.
+* If your processing system is distributed or not contained to a single
+  process.
+
+In what cases would you not benefit from using Fiona?
+
+* If your data is in or destined for a JSON document you should use Python's
+  :py:mod:`json` or :py:mod:`simplejson` modules.
+* If your data is in a RDBMS like PostGIS, use a Python DB package or ORM like
+  :py:mod:`SQLAlchemy` or :py:mod:`GeoAlchemy`. Maybe you're using
+  :py:mod:`GeoDjango` already. If so, carry on.
+* If your data is served via HTTP from CouchDB or CartoDB, etc, use an HTTP
+  package (:py:mod:`httplib2`, :py:mod:`Requests`, etc) or the provider's
+  Python API.
+* If you can use :command:`ogr2ogr`, do so.
+
+Example
+-------
+
+The first example of using Fiona is this: copying records from one file to
+another, adding two attributes and making sure that all polygons are facing
+"up". Orientation of polygons is significant in some applications, extruded
+polygons in Google Earth for one. No other library (like :py:mod:`Shapely`) is
+needed here, which keeps it uncomplicated. There's a :file:`test_uk` file in
+the Fiona repository for use in this and other examples.
+
+.. sourcecode:: python
+
+  import datetime
+  import logging
+  import sys
+  
+  import fiona
+  
+  logging.basicConfig(stream=sys.stderr, level=logging.INFO)
+  
+  def signed_area(coords):
+      """Return the signed area enclosed by a ring using the linear time
+      algorithm at http://www.cgafaq.info/wiki/Polygon_Area. A value >= 0
+      indicates a counter-clockwise oriented ring.
+      """
+      xs, ys = map(list, zip(*coords))
+      xs.append(xs[1])
+      ys.append(ys[1]) 
+      return sum(xs[i]*(ys[i+1]-ys[i-1]) for i in range(1, len(coords)))/2.0
+  
+  with fiona.open('docs/data/test_uk.shp', 'r') as source:
+      
+      # Copy the source schema and add two new properties.
+      sink_schema = source.schema.copy()
+      sink_schema['properties']['s_area'] = 'float'
+      sink_schema['properties']['timestamp'] = 'datetime'
+      
+      # Create a sink for processed features with the same format and 
+      # coordinate reference system as the source.
+      with fiona.open(
+              'oriented-ccw.shp', 'w',
+              crs=source.crs,
+              driver=source.driver,
+              schema=sink_schema,
+              ) as sink:
+          
+          for f in source:
+              
+              try:
+  
+                  # If any feature's polygon is facing "down" (has rings
+                  # wound clockwise), its rings will be reordered to flip
+                  # it "up".
+                  g = f['geometry']
+                  assert g['type'] == "Polygon"
+                  rings = g['coordinates']
+                  sa = sum(signed_area(r) for r in rings)
+                  if sa < 0.0:
+                      rings = [r[::-1] for r in rings]
+                      g['coordinates'] = rings
+                      f['geometry'] = g
+  
+                  # Add the signed area of the polygon and a timestamp
+                  # to the feature properties map.
+                  f['properties'].update(
+                      s_area=sa,
+                      timestamp=datetime.datetime.now().isoformat() )
+  
+                  sink.write(f)
+              
+              except Exception, e:
+                  logging.exception("Error processing feature %s:", f['id'])
+
+          # The sink file is written to disk and closed when its block ends.
+
+Data Model
+==========
+
+Discrete geographic features are usually represented in geographic information
+systems by :dfn:`records`. The characteristics of records and their semantic
+implications are well known [Kent1978]_. Among those most significant for
+geographic data: records have a single type, all records of that type have the
+same fields, and a record's fields concern a single geographic feature.
+Different systems model records in different ways, but the various models have
+enough in common that programmers have been able to create useful abstract data
+models.  The `OGR model <http://www.gdal.org/ogr/ogr_arch.html>`__ is one. Its
+primary entities are :dfn:`Data Sources`, :dfn:`Layers`, and :dfn:`Features`.
+Features have not fields, but attributes and a :dfn:`Geometry`. An OGR Layer
+contains Features of a single type ("roads" or "wells", for example). The
+GeoJSON model is a bit more simple, keeping Features and substituting
+:dfn:`Feature Collections` for OGR Data Sources and Layers. The term "Feature"
+is thus overloaded in GIS modeling, denoting entities in both our conceptual
+and data models.
+
+Various formats for record files exist. The :dfn:`ESRI Shapefile` [ESRI1998]_
+has been, at least in the United States, the most significant of these up to
+about 2005 and remains popular today. It is a binary format. The shape fields
+are stored in one .shp file and the other fields in another .dbf file. The
+GeoJSON [GeoJSON]_ format, from 2008, proposed a human readable text format in
+which geometry and other attribute fields are encoded together using
+:dfn:`Javascript Object Notation` [JSON]_. In GeoJSON, there's a uniformity of
+data access.  Attributes of features are accessed in the same manner as
+attributes of a feature collection.  Coordinates of a geometry are accessed in
+the same manner as features of a collection.
+
+The GeoJSON format turns out to be a good model for a Python API. JSON objects
+and Python dictionaries are semantically and syntactically similar. Replacing
+object-oriented Layer and Feature APIs with interfaces based on Python mappings
+provides a uniformity of access to data and reduces the amount of time spent
+reading documentation. A Python programmer knows how to use a mapping, so why
+not treat features as dictionaries? Use of existing Python idioms is one of
+Fiona's major design principles.
+
+.. admonition:: TL;DR
+   
+   Fiona subscribes to the conventional record model of data, but provides
+   GeoJSON-like access to the data via Python file-like and mapping protocols.
+
+Reading Vector Data
+===================
+
+Reading a GIS vector file begins by opening it in mode ``'r'`` using Fiona's
+:py:func:`~fiona.open` function. It returns an opened
+:py:class:`~fiona.collection.Collection` object.
+
+.. sourcecode:: pycon
+
+  >>> import fiona
+  >>> c = fiona.open('docs/data/test_uk.shp', 'r')
+  >>> c
+  <open Collection 'docs/data/test_uk.shp:test_uk', mode 'r' at 0x...>
+  >>> c.closed
+  False
+
+.. admonition:: API Change
+
+   :py:func:`fiona.collection` is deprecated, but aliased to 
+   :py:func:`fiona.open` in version 0.9.
+
+Mode ``'r'`` is the default and will be omitted in following examples.
+
+Fiona's :py:class:`~fiona.collection.Collection` is like a Python
+:py:class:`file`, but is iterable for records rather than lines.
+
+.. sourcecode:: pycon
+
+  >>> next(c)
+  {'geometry': {'type': 'Polygon', 'coordinates': ...
+  >>> len(list(c))
+  48
+
+Note that :py:func:`list` iterates over the entire collection, effectively
+emptying it as with a Python :py:class:`file`.
+
+.. sourcecode:: pycon
+
+  >>> next(c)
+  Traceback (most recent call last):
+  ...
+  StopIteration
+  >>> len(list(c))
+  0
+
+Seeking the beginning of the file is not supported. You must reopen the
+collection to get back to the beginning.
+
+.. sourcecode:: pycon
+
+  >>> c = fiona.open('docs/data/test_uk.shp')
+  >>> len(list(c))
+  48
+
+.. admonition:: File Encoding
+
+   The format drivers will attempt to detect the encoding of your data, but may
+   fail. In my experience GDAL 1.7.2 (for example) doesn't detect that the
+   encoding of the Natural Earth dataset is Windows-1252. In this case, the
+   proper encoding can be specified explicitly by using the ``encoding``
+   keyword parameter of :py:func:`fiona.open`: ``encoding='Windows-1252'``.
+   
+   New in version 0.9.1.
+
+Collection indexing
+-------------------
+
+.. admonition::
+
+   New in version 1.1.6
+
+Features of a collection may also be accessed by index.
+
+.. code-block:: pycon
+
+    >>> import pprint
+    >>> with fiona.open('docs/data/test_uk.shp') as src:
+    ...     pprint.pprint(src[1])
+    ...
+    {'geometry': {'coordinates': [[(-4.663611, 51.158333),
+                                   (-4.669168, 51.159439),
+                                   (-4.673334, 51.161385),
+                                   (-4.674445, 51.165276),
+                                   (-4.67139, 51.185272),
+                                   (-4.669445, 51.193054),
+                                   (-4.665556, 51.195),
+                                   (-4.65889, 51.195),
+                                   (-4.656389, 51.192215),
+                                   (-4.646389, 51.164444),
+                                   (-4.646945, 51.160828),
+                                   (-4.651668, 51.159439),
+                                   (-4.663611, 51.158333)]],
+                  'type': 'Polygon'},
+     'id': '1',
+     'properties': OrderedDict([(u'CAT', 232.0), (u'FIPS_CNTRY', u'UK'), (u'CNTRY_NAME', u'United Kingdom'), (u'AREA', 244820.0), (u'POP_CNTRY', 60270708.0)]),
+     'type': 'Feature'}
+
+Closing Files
+-------------
+
+A :py:class:`~fiona.collection.Collection` involves external resources. There's
+no guarantee that these will be released unless you explicitly
+:py:meth:`~fiona.collection.Collection.close` the object or use
+a :py:keyword:`with` statement. When a :py:class:`~fiona.collection.Collection`
+is a context guard, it is closed no matter what happens within the block.
+
+.. sourcecode:: pycon
+
+  >>> try:
+  ...     with fiona.open('docs/data/test_uk.shp') as c:
+  ...         print(len(list(c)))
+  ...         assert True is False
+  ... except:
+  ...     print(c.closed)
+  ...     raise
+  ... 
+  48
+  True
+  Traceback (most recent call last):
+    ...
+  AssertionError
+
+An exception is raised in the :keyword:`with` block above, but as you can see
+from the print statement in the :keyword:`except` clause :py:meth:`c.__exit__`
+(and thereby :py:meth:`c.close`) has been called.
+
+.. important:: Always call :py:meth:`~fiona.collection.Collection.close` or 
+   use :keyword:`with` and you'll never stumble over tied-up external resources,
+   locked files, etc.
+
+Format Drivers, CRS, Bounds, and Schema
+=======================================
+
+In addition to attributes like those of :py:class:`file`
+(:py:attr:`~file.name`, :py:attr:`~file.mode`, :py:attr:`~file.closed`),
+a :py:class:`~fiona.collection.Collection` has a read-only
+:py:attr:`~fiona.collection.Collection.driver` attribute which names the
+:program:`OGR` :dfn:`format driver` used to open the vector file.
+
+.. sourcecode:: pycon
+
+  >>> c = fiona.open('docs/data/test_uk.shp')
+  >>> c.driver
+  'ESRI Shapefile'
+
+The :dfn:`coordinate reference system` (CRS) of the collection's vector data is
+accessed via a read-only :py:attr:`~fiona.collection.Collection.crs` attribute.
+
+.. sourcecode:: pycon
+
+  >>> c.crs
+  {'no_defs': True, 'ellps': 'WGS84', 'datum': 'WGS84', 'proj': 'longlat'}
+
+The CRS is represented by a mapping of :program:`PROJ.4` parameters.
+
+The :py:mod:`fiona.crs` module provides 3 functions to assist with these
+mappings. :py:func:`~fiona.crs.to_string` converts mappings to PROJ.4 strings:
+
+.. sourcecode:: pycon
+
+  >>> from fiona.crs import to_string
+  >>> print(to_string(c.crs))
+  +datum=WGS84 +ellps=WGS84 +no_defs +proj=longlat
+
+:py:func:`~fiona.crs.from_string` does the inverse.
+
+.. sourcecode:: pycon
+
+  >>> from fiona.crs import from_string
+  >>> from_string("+datum=WGS84 +ellps=WGS84 +no_defs +proj=longlat")
+  {'no_defs': True, 'ellps': 'WGS84', 'datum': 'WGS84', 'proj': 'longlat'}
+
+:py:func:`~fiona.crs.from_epsg` is a shortcut to CRS mappings from EPSG codes.
+
+.. sourcecode:: pycon
+
+  >>> from fiona.crs import from_epsg
+  >>> from_epsg(3857)
+  {'init': 'epsg:3857', 'no_defs': True}
+
+The number of records in the collection's file can be obtained via Python's
+built in :py:func:`len` function.
+
+.. sourcecode:: pycon
+
+  >>> len(c)
+  48
+
+The :dfn:`minimum bounding rectangle` (MBR) or :dfn:`bounds` of the
+collection's records is obtained via a read-only
+:py:attr:`~fiona.collection.Collection.bounds` attribute.
+
+.. sourcecode:: pycon
+
+  >>> c.bounds
+  (-8.621389, 49.911659, 1.749444, 60.844444)
+
+Finally, the schema of its record type (a vector file has a single type of
+record, remember) is accessed via a read-only
+:py:attr:`~fiona.collection.Collection.schema` attribute. It has 'geometry'
+and 'properties' items. The former is a string and the latter is an ordered
+dict with items having the same order as the fields in the data file.
+
+.. sourcecode:: pycon
+
+  >>> import pprint
+  >>> pprint.pprint(c.schema)
+  {'geometry': 'Polygon',
+   'properties': {'CAT': 'float:16',
+                  'FIPS_CNTRY': 'str',
+                  'CNTRY_NAME': 'str',
+                  'AREA': 'float:15.2',
+                  'POP_CNTRY': 'float:15.2'}}
+  
+Keeping Schemas Simple
+----------------------
+
+Fiona takes a less is more approach to record types and schemas. Data about
+record types is structured as closely to data about records as can be done.
+Modulo a record's 'id' key, the keys of a schema mapping are the same as the
+keys of the collection's record mappings.
+
+.. sourcecode:: pycon
+
+  >>> rec = next(c)
+  >>> set(rec.keys()) - set(c.schema.keys())
+  {'id'}
+  >>> set(rec['properties'].keys()) == set(c.schema['properties'].keys())
+  True
+
+The values of the schema mapping are either additional mappings or field type
+names like 'Polygon', 'float', and 'str'. The corresponding Python types can
+be found in a dictionary named :py:attr:`fiona.FIELD_TYPES_MAP`.
+
+.. sourcecode:: pycon
+
+  >>> pprint.pprint(fiona.FIELD_TYPES_MAP)
+  {'date': <class 'fiona.rfc3339.FionaDateType'>,
+   'datetime': <class 'fiona.rfc3339.FionaDateTimeType'>,
+   'float': <class 'float'>,
+   'int': <class 'int'>,
+   'str': <class 'str'>,
+   'time': <class 'fiona.rfc3339.FionaTimeType'>}
+
+Field Types
+-----------
+
+In a nutshell, the types and their names are as near to what you'd expect in
+Python (or Javascript) as possible. The 'str' vs 'unicode' muddle is a fact of
+life in Python < 3.0. Fiona records have Unicode strings, but their field type
+name is 'str' (looking forward to Python 3).
+
+.. sourcecode:: pycon
+
+  >>> type(rec['properties']['CNTRY_NAME'])
+  <class 'str'>
+  >>> c.schema['properties']['CNTRY_NAME']
+  'str'
+  >>> fiona.FIELD_TYPES_MAP[c.schema['properties']['CNTRY_NAME']]
+  <class 'str'>
+
+String type fields may also indicate their maximum width. A value of 'str:25'
+indicates that all values will be no longer than 25 characters. If this value
+is used in the schema of a file opened for writing, values of that property
+will be truncated at 25 characters. The default width is 80 chars, which means
+'str' and 'str:80' are more or less equivalent.
+
+Fiona provides a function to get the width of a property.
+
+.. sourcecode:: pycon
+
+  >>> from fiona import prop_width
+  >>> prop_width('str:25')
+  25
+  >>> prop_width('str')
+  80
+
+Another function gets the proper Python type of a property.
+
+.. sourcecode:: pycon
+
+  >>> from fiona import prop_type
+  >>> prop_type('int')
+  <type 'int'>
+  >>> prop_type('float')
+  <type 'float'>
+  >>> prop_type('str:25')
+  <class 'str'>
+
+The example above is for Python 3. With Python 2, the type of 'str' properties
+is 'unicode'.
+
+.. sourcecode:: pycon
+
+  >>> prop_type('str:25')
+  <class 'unicode'>
+
+Geometry Types
+--------------
+
+Fiona supports the geometry types in GeoJSON and their 3D variants. This means
+that the value of a schema's geometry item will be one of the following:
+
+ - Point
+ - LineString
+ - Polygon
+ - MultiPoint
+ - MultiLineString
+ - MultiPolygon
+ - GeometryCollection
+ - 3D Point
+ - 3D LineString
+ - 3D Polygon
+ - 3D MultiPoint
+ - 3D MultiLineString
+ - 3D MultiPolygon
+ - 3D GeometryCollection
+
+The last seven of these, the 3D types, apply only to collection schema. The
+geometry types of features are always one of the first seven. A '3D Point'
+collection, for example, always has features with geometry type 'Point'. The
+coordinates of those geometries will be (x, y, z) tuples.
+
+Note that one of the most common vector data formats, Esri's Shapefile, has no
+'MultiLineString' or 'MultiPolygon' schema geometries. However, a Shapefile
+that indicates 'Polygon' in its schema may yield either 'Polygon' or
+'MultiPolygon' features.
+
+Records
+=======
+
+A record you get from a collection is a Python :py:class:`dict` structured
+exactly like a GeoJSON Feature. Fiona records are self-describing; the names of
+its fields are contained within the data structure and the values in the fields
+are typed properly for the type of record. Numeric field values are instances
+of type :py:class:`int` and :py:class:`float`, for example, not strings.
+
+.. sourcecode:: pycon
+
+  >>> pprint.pprint(rec)
+  {'geometry': {'coordinates': [[(-4.663611, 51.158333),
+                                 (-4.669168, 51.159439),
+                                 (-4.673334, 51.161385),
+                                 (-4.674445, 51.165276),
+                                 (-4.67139, 51.185272),
+                                 (-4.669445, 51.193054),
+                                 (-4.665556, 51.195),
+                                 (-4.65889, 51.195),
+                                 (-4.656389, 51.192215),
+                                 (-4.646389, 51.164444),
+                                 (-4.646945, 51.160828),
+                                 (-4.651668, 51.159439),
+                                 (-4.663611, 51.158333)]],
+                'type': 'Polygon'},
+   'id': '1',
+   'properties': {'CAT': 232.0,
+                  'FIPS_CNTRY': 'UK',
+                  'CNTRY_NAME': 'United Kingdom',
+                  'AREA': 244820.0,
+                  'POP_CNTRY': 60270708.0}}
+
+The record data has no references to the
+:py:class:`~fiona.collection.Collection` from which it originates or to any
+other external resource. It's entirely independent and safe to use in any way.
+Closing the collection does not affect the record at all.
+
+.. sourcecode:: pycon
+
+  >>> c.close()
+  >>> rec['id']
+  '1'
+
+Record Id
+---------
+
+A record has an ``id`` key. As in the GeoJSON specification, its corresponding
+value is a string unique within the data file.
+
+.. sourcecode:: pycon
+
+  >>> c = fiona.open('docs/data/test_uk.shp')
+  >>> rec = next(c)
+  >>> rec['id']
+  '0'
+
+.. admonition:: OGR Details
+
+   In the :program:`OGR` model, feature ids are long integers. Fiona record ids
+   are therefore usually string representations of integer record indexes.
+
+Record Properties
+-----------------
+
+A record has a ``properties`` key. Its corresponding value is a mapping: an
+ordered dict to be precise. The keys of the properties mapping are the same as
+the keys of the properties mapping in the schema of the collection the record
+comes from (see above).
+
+.. sourcecode:: pycon
+
+  >>> pprint.pprint(rec['properties'])
+  {'CAT': 232.0,
+   'FIPS_CNTRY': 'UK',
+   'CNTRY_NAME': 'United Kingdom',
+   'AREA': 244820.0,
+   'POP_CNTRY': 60270708.0}
+
+Record Geometry
+---------------
+
+A record has a ``geometry`` key. Its corresponding value is a mapping with
+``type`` and ``coordinates`` keys.
+
+.. sourcecode:: pycon
+
+  >>> pprint.pprint(rec['geometry'])
+  {'coordinates': [[(0.899167, 51.357216),
+                    (0.885278, 51.35833),
+                    (0.7875, 51.369438),
+                    (0.781111, 51.370552),
+                    (0.766111, 51.375832),
+                    (0.759444, 51.380829),
+                    (0.745278, 51.39444),
+                    (0.740833, 51.400276),
+                    (0.735, 51.408333),
+                    (0.740556, 51.429718),
+                    (0.748889, 51.443604),
+                    (0.760278, 51.444717),
+                    (0.791111, 51.439995),
+                    (0.892222, 51.421387),
+                    (0.904167, 51.418884),
+                    (0.908889, 51.416939),
+                    (0.930555, 51.398888),
+                    (0.936667, 51.393608),
+                    (0.943889, 51.384995),
+                    (0.9475, 51.378609),
+                    (0.947778, 51.374718),
+                    (0.946944, 51.371109),
+                    (0.9425, 51.369164),
+                    (0.904722, 51.358055),
+                    (0.899167, 51.357216)]],
+   'type': 'Polygon'}
+
+Since the coordinates are just tuples, or lists of tuples, or lists of lists of
+tuples, the ``type`` tells you how to interpret them.
+
++-------------------+---------------------------------------------------+
+| Type              | Coordinates                                       |
++===================+===================================================+
+| Point             | A single (x, y) tuple                             |
++-------------------+---------------------------------------------------+
+| LineString        | A list of (x, y) tuple vertices                   |
++-------------------+---------------------------------------------------+
+| Polygon           | A list of rings (each a list of (x, y) tuples)    |
++-------------------+---------------------------------------------------+
+| MultiPoint        | A list of points (each a single (x, y) tuple)     |
++-------------------+---------------------------------------------------+
+| MultiLineString   | A list of lines (each a list of (x, y) tuples)    |
++-------------------+---------------------------------------------------+
+| MultiPolygon      | A list of polygons (see above)                    |
++-------------------+---------------------------------------------------+
+
+Fiona, like the GeoJSON format, has both Northern Hemisphere "North is up" and
+Cartesian "X-Y" biases. The values within a tuple that denoted as ``(x, y)``
+above are either (longitude E of the prime meridian, latitude N of the equator)
+or, for other projected coordinate systems, (easting, northing).
+
+.. admonition:: Long-Lat, not Lat-Long
+
+   Even though most of us say "lat, long" out loud, Fiona's ``x,y`` is always
+   easting, northing, which means ``(long, lat)``. Longitude first and latitude
+   second, consistent with the GeoJSON format specification.
+
+Point Set Theory and Simple Features
+------------------------------------
+
+In a proper, well-scrubbed vector data file the geometry mappings explained
+above are representations of geometric objects made up of :dfn:`point sets`.
+The following
+
+.. sourcecode:: python
+
+  {'type': 'LineString', 'coordinates': [(0.0, 0.0), (0.0, 1.0)]}
+
+represents not just two points, but the set of infinitely many points along the
+line of length 1.0 from ``(0.0, 0.0)`` to ``(0.0, 1.0)``. In the application of
+point set theory commonly called :dfn:`Simple Features Access` [SFA]_ two
+geometric objects are equal if their point sets are equal whether they are
+equal in the Python sense or not. If you have Shapely (which implements Simple
+Features Access) installed, you can see this in by verifying the following.
+
+.. sourcecode:: pycon
+
+  >>> from shapely.geometry import shape
+  >>> l1 = shape(
+  ...     {'type': 'LineString', 'coordinates': [(0, 0), (2, 2)]})
+  >>> l2 = shape(
+  ...     {'type': 'LineString', 'coordinates': [(0, 0), (1, 1), (2, 2)]})
+  >>> l1 == l2
+  False
+  >>> l1.equals(l2)
+  True
+
+.. admonition:: Dirty data
+
+   Some files may contain vectors that are :dfn:`invalid` from a simple
+   features standpoint due to accident (inadequate quality control on the
+   producer's end) or intention ("dirty" vectors saved to a file for special
+   treatment). Fiona doesn't sniff for or attempt to clean dirty data, so make
+   sure you're getting yours from a clean source.
+
+Writing Vector Data
+===================
+
+A vector file can be opened for writing in mode ``'a'`` (append) or mode
+``'w'`` (write).
+
+.. admonition:: Note
+   
+   The in situ "update" mode of :program:`OGR` is quite format dependent
+   and is therefore not supported by Fiona.
+
+Appending Data to Existing Files
+--------------------------------
+
+Let's start with the simplest if not most common use case, adding new records
+to an existing file. The file is copied before modification and a suitable
+record extracted in the example below.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open('docs/data/test_uk.shp') as c:
+  ...     rec = next(c)
+  >>> rec['id'] = '-1'
+  >>> rec['properties']['CNTRY_NAME'] = 'Gondor'
+  >>> import os
+  >>> os.system("cp docs/data/test_uk.* /tmp")
+  0
+
+The coordinate reference system. format, and schema of the file are already
+defined, so it's opened with just two arguments as for reading, but in ``'a'``
+mode. The new record is written to the end of the file using the
+:py:meth:`~fiona.collection.Collection.write` method. Accordingly, the length
+of the file grows from 48 to 49.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open('/tmp/test_uk.shp', 'a') as c:
+  ...     print(len(c))
+  ...     c.write(rec)
+  ...     print(len(c))
+  ... 
+  48
+  49
+
+The record you write must match the file's schema (because a file contains one
+type of record, remember). You'll get a :py:class:`ValueError` if it doesn't.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open('/tmp/test_uk.shp', 'a') as c:
+  ...     c.write({'properties': {'foo': 'bar'}})
+  ... 
+  Traceback (most recent call last):
+    ...
+  ValueError: Record data not match collection schema
+
+Now, what about record ids? The id of a record written to a file is ignored and
+replaced by the next value appropriate for the file. If you read the file just
+appended to above,
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open('/tmp/test_uk.shp', 'a') as c:
+  ...     records = list(c)
+  >>> records[-1]['id']
+  '48'
+  >>> records[-1]['properties']['CNTRY_NAME']
+  'Gondor'
+
+You'll see that the id of ``'-1'`` which the record had when written is
+replaced by ``'48'``.
+
+The :py:meth:`~fiona.collection.Collection.write` method writes a single
+record to the collection's file. Its sibling
+:py:meth:`~fiona.collection.Collection.writerecords` writes a sequence (or
+iterator) of records.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open('/tmp/test_uk.shp', 'a') as c:
+  ...     c.writerecords([rec, rec, rec])
+  ...     print(len(c))
+  ... 
+  52
+
+.. admonition:: Duplication
+
+   Fiona's collections do not guard against duplication. The code above will
+   write 3 duplicate records to the file, and they will be given unique
+   sequential ids.
+
+.. admonition:: Buffering
+
+   Fiona's output is buffered. The records passed to :py:meth:`write` and
+   :py:meth:`writerecords` are flushed to disk when the collection is closed.
+   You may also call :py:meth:`flush` periodically to write the buffer contents
+   to disk.
+
+Writing New Files
+-----------------
+
+Writing a new file is more complex than appending to an existing file because
+the file CRS, format, and schema have not yet been defined and must be done so
+by the programmer. Still, it's not very complicated. A schema is just
+a mapping, as described above. A CRS is also just a mapping, and the possible
+formats are enumerated in the :py:attr:`fiona.drivers` list.
+
+Copy the parameters of our demo file.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open('docs/data/test_uk.shp') as source:
+  ...     source_driver = source.driver
+  ...     source_crs = source.crs
+  ...     source_schema = source.schema
+  ... 
+  >>> source_driver
+  'ESRI Shapefile'
+  >>> source_crs
+  {'no_defs': True, 'ellps': 'WGS84', 'datum': 'WGS84', 'proj': 'longlat'}
+  >>> pprint.pprint(source_schema)
+  {'geometry': 'Polygon',
+   'properties': {'CAT': 'float:16',
+                  'FIPS_CNTRY': 'str',
+                  'CNTRY_NAME': 'str',
+                  'AREA': 'float:15.2',
+                  'POP_CNTRY': 'float:15.2'}}
+
+And now create a new file using them.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open(
+  ...         '/tmp/foo.shp',
+  ...         'w',
+  ...         driver=source_driver,
+  ...         crs=source_crs,
+  ...         schema=source_schema) as c:
+  ...     print(len(c))
+  ...     c.write(rec)
+  ...     print(len(c))
+  ... 
+  0
+  1
+  >>> c.closed
+  True
+  >>> len(c)
+  1
+
+Because the properties of the source schema are ordered and are passed in the
+same order to the write-mode collection, the written file's fields have the
+same order as those of the source file.
+
+.. sourcecode:: console
+
+  $ ogrinfo /tmp/foo.shp foo -so
+  INFO: Open of `/tmp/foo.shp'
+        using driver `ESRI Shapefile' successful.
+  
+  Layer name: foo
+  Geometry: 3D Polygon
+  Feature Count: 1
+  Extent: (0.735000, 51.357216) - (0.947778, 51.444717)
+  Layer SRS WKT:
+  GEOGCS["GCS_WGS_1984",
+      DATUM["WGS_1984",
+          SPHEROID["WGS_84",6378137,298.257223563]],
+      PRIMEM["Greenwich",0],
+      UNIT["Degree",0.017453292519943295]]
+  CAT: Real (16.0)
+  FIPS_CNTRY: String (80.0)
+  CNTRY_NAME: String (80.0)
+  AREA: Real (15.2)
+  POP_CNTRY: Real (15.2)
+
+The :py:attr:`~fiona.collection.Collection.meta` attribute makes duplication of
+a file's meta properties even easier.
+
+.. sourcecode:: pycon
+
+  >>> source = fiona.open('docs/data/test_uk.shp')
+  >>> sink = fiona.open('/tmp/foo.shp', 'w', **source.meta)
+
+Ordering Record Fields
+......................
+
+Beginning with Fiona 1.0.1, the 'properties' item of :py:func:`fiona.open`'s
+'schema' keyword argument may be an ordered dict or a list of (key, value)
+pairs, specifying an ordering that carries into written files. If an ordinary
+dict is given, the ordering is determined by the output of that dict's
+:py:func:`~items` method.
+
+For example, since
+
+.. sourcecode:: pycon
+  
+  >>> {'bar': 'int', 'foo': 'str'}.keys()
+  ['foo', 'bar']
+
+a schema of ``{'properties': {'bar': 'int', 'foo': 'str'}}`` will produce
+a shapefile where the first field is 'foo' and the second field is 'bar'. If
+you want 'bar' to be the first field, you must use a list of property items
+
+.. sourcecode:: python
+
+  c = fiona.open(
+      '/tmp/file.shp', 
+      'w', 
+      schema={'properties': [('bar', 'int'), ('foo', 'str')], ...},
+      ... )
+
+or an ordered dict.
+
+.. sourcecode:: python
+
+  from collections import OrderedDict
+
+  schema_props = OrderedDict([('bar', 'int'), ('foo', 'str')])
+
+  c = fiona.open(
+      '/tmp/file.shp', 
+      'w', 
+      schema={'properties': schema_props, ...},
+      ... )
+
+
+Coordinates and Geometry Types
+------------------------------
+
+If you write 3D coordinates, ones having (x, y, z) tuples, to a 2D file
+('Point' schema geometry, for example) the z values will be lost.
+
+If you write 2D coordinates, ones having only (x, y) tuples, to a 3D file ('3D
+Point' schema geometry, for example) a default z value of 0 will be provided.
+
+
+Advanced Topics
+===============
+
+Slicing and masking iterators
+-----------------------------
+
+With some vector data formats a spatial index accompanies the data file,
+allowing efficient bounding box searches. A collection's
+:py:meth:`~fiona.collection.Collection.items` method returns an iterator over
+pairs of FIDs and records that intersect a given ``(minx, miny, maxx, maxy)``
+bounding box or geometry object. The
+collection's own coordinate reference system (see below) is used to interpret
+the box's values. If you want a list of the iterator's items, pass it to Python's
+builtin :py:func:`list` as shown below.
+
+.. sourcecode:: pycon
+
+  >>> c = fiona.open('docs/data/test_uk.shp')
+  >>> hits = list(c.items(bbox=(-5.0, 55.0, 0.0, 60.0)))
+  >>> len(hits)
+  7
+
+The iterator method takes the same ``stop`` or ``start, stop[, step]``
+slicing arguments as :py:func:`itertools.islice`. 
+To get just the first two items from that iterator, pass a stop index.
+
+.. sourcecode:: pycon
+
+    >>> hits = c.items(2, bbox=(-5.0, 55.0, 0.0, 60.0))
+    >>> len(list(hits))
+    2
+
+To get the third through fifth items from that iterator, pass start and stop
+indexes.
+
+.. sourcecode:: pycon
+
+    >>> hits = c.items(2, 5, bbox=(-5.0, 55.0, 0.0, 60.0))
+    >>> len(list(hits))
+    3
+
+To filter features by property values, use Python's builtin :py:func:`filter` and
+:py:keyword:`lambda` or your own filter function that takes a single feature
+record and returns ``True`` or ``False``.
+
+.. sourcecode:: pycon
+
+  >>> def pass_positive_area(rec):
+  ...     return rec['properties'].get('AREA', 0.0) > 0.0
+  ...
+  >>> c = fiona.open('docs/data/test_uk.shp')
+  >>> hits = filter(pass_positive_area, c)
+  >>> len(list(hits))
+  48
+
+Reading Multilayer data
+-----------------------
+
+Up to this point, only simple datasets with one thematic layer or feature type
+per file have been shown and the venerable Esri Shapefile has been the primary
+example. Other GIS data formats can encode multiple layers or feature types
+within a single file or directory. Esri's `File Geodatabase
+<http://www.gdal.org/ogr/drv_filegdb.html>`__ is one example of such a format.
+A more useful example, for the purpose of this manual, is a directory
+comprising multiple shapefiles. The following three shell commands will create
+just such a two layered data source from the test data distributed with Fiona.
+
+.. sourcecode:: console
+
+  $ mkdir /tmp/data
+  $ ogr2ogr /tmp/data/ docs/data/test_uk.shp test_uk -nln foo
+  $ ogr2ogr /tmp/data/ docs/data/test_uk.shp test_uk -nln bar
+
+The layers of a data source can be listed using :py:func:`fiona.listlayers`. In
+the shapefile format case, layer names match base names of the files.
+
+.. sourcecode:: pycon
+
+  >>> fiona.listlayers('/tmp/data')
+  ['bar', 'foo']
+
+Unlike OGR, Fiona has no classes representing layers or data sources. To access
+the features of a layer, open a collection using the path to the data source
+and specify the layer by name using the `layer` keyword.
+
+.. sourcecode:: pycon
+
+  >>> import pprint
+  >>> datasrc_path = '/tmp/data'
+  >>> for name in fiona.listlayers(datasrc_path):
+  ...     with fiona.open(datasrc_path, layer=name) as c:
+  ...         pprint.pprint(c.schema)
+  ...
+  {'geometry': 'Polygon',
+   'properties': {'CAT': 'float:16',
+                  'FIPS_CNTRY': 'str',
+                  'CNTRY_NAME': 'str',
+                  'AREA': 'float:15.2',
+                  'POP_CNTRY': 'float:15.2'}}
+  {'geometry': 'Polygon',
+   'properties': {'CAT': 'float:16',
+                  'FIPS_CNTRY': 'str',
+                  'CNTRY_NAME': 'str',
+                  'AREA': 'float:15.2',
+                  'POP_CNTRY': 'float:15.2'}}
+
+Layers may also be specified by their index.
+
+.. sourcecode:: pycon
+
+  >>> for i, name in enumerate(fiona.listlayers(datasrc_path)):
+  ...     with fiona.open(datasrc_path, layer=i) as c:
+  ...         print(len(c))
+  ...
+  48
+  48
+
+If no layer is specified, :py:func:`fiona.open` returns an open collection
+using the first layer.
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open(datasrc_path) as c:
+  ...     c.name == fiona.listlayers(datasrc_path)[0]
+  ...
+  True
+
+The most general way to open a shapefile for reading, using all of the
+parameters of :py:func:`fiona.open`, is to treat it as a data source with
+a named layer.
+
+.. sourcecode:: pycon
+
+  >>> fiona.open('docs/data/test_uk.shp', 'r', layer='test_uk')
+
+In practice, it is fine to rely on the implicit first layer and default ``'r'``
+mode and open a shapefile like this:
+
+.. sourcecode:: pycon
+
+  >>> fiona.open('docs/data/test_uk.shp')
+
+Writing Multilayer data
+-----------------------
+
+To write an entirely new layer to a multilayer data source, simply provide
+a unique name to the `layer` keyword argument.
+
+.. sourcecode:: pycon
+
+  >>> 'wah' not in fiona.listlayers(datasrc_path)
+  True
+  >>> with fiona.open(datasrc_path, layer='bar') as c:
+  ...     with fiona.open(datasrc_path, 'w', layer='wah', **c.meta) as d:
+  ...         d.write(next(c))
+  ...
+  >>> fiona.listlayers(datasrc_path)
+  ['bar', 'foo', 'wah']
+
+In ``'w'`` mode, existing layers will be overwritten if specified, just as normal
+files are overwritten by Python's :py:func:`open` function.
+
+.. sourcecode:: pycon
+
+  >>> 'wah' in fiona.listlayers(datasrc_path)
+  True
+  >>> with fiona.open(datasrc_path, layer='bar') as c:
+  ...     with fiona.open(datasrc_path, 'w', layer='wah', **c.meta) as d:
+  ...         # Overwrites the existing layer named 'wah'!
+
+Virtual filesystems
+-------------------
+
+Zip and Tar archives can be treated as virtual filesystems and collections can
+be made from paths and layers within them. In other words, Fiona lets you read
+zipped shapefiles. For example, make a Zip archive from the shapefile
+distributed with Fiona.
+
+.. sourcecode:: console
+
+  $ zip /tmp/zed.zip docs/data/test_uk.*
+  adding: docs/data/test_uk.shp (deflated 48%)
+  adding: docs/data/test_uk.shx (deflated 37%)
+  adding: docs/data/test_uk.dbf (deflated 98%)
+  adding: docs/data/test_uk.prj (deflated 15%)
+
+The `vfs` keyword parameter for :py:func:`fiona.listlayers` and
+:py:func:`fiona.open` may be an Apache Commons VFS style string beginning with
+"zip://" or "tar://" and followed by an absolute or relative path to the
+archive file. When this parameter is used, the first argument to must be an
+absolute path within that archive. The layers in that Zip archive are:
+
+.. sourcecode:: pycon
+
+  >>> import fiona
+  >>> fiona.listlayers('/docs/data', vfs='zip:///tmp/zed.zip')
+  ['test_uk']
+
+The single shapefile may also be accessed like so:
+
+.. sourcecode:: pycon
+
+  >>> with fiona.open(
+  ...         '/docs/data/test_uk.shp', 
+  ...         vfs='zip:///tmp/zed.zip') as c:
+  ...     print(len(c))
+  ...
+  48
+
+Dumpgj
+======
+
+Fiona installs a script named ``dumpgj``. It converts files to GeoJSON with
+JSON-LD context as an option and is intended to be an upgrade to "ogr2ogr -f
+GeoJSON".
+
+.. sourcecode:: console
+
+  $ dumpgj --help
+  usage: dumpgj [-h] [-d] [-n N] [--compact] [--encoding ENC]
+                [--record-buffered] [--ignore-errors] [--use-ld-context]
+                [--add-ld-context-item TERM=URI]
+                infile [outfile]
+  
+  Serialize a file's records or description to GeoJSON
+  
+  positional arguments:
+    infile                input file name
+    outfile               output file name, defaults to stdout if omitted
+  
+  optional arguments:
+    -h, --help            show this help message and exit
+    -d, --description     serialize file's data description (schema) only
+    -n N, --indent N      indentation level in N number of chars
+    --compact             use compact separators (',', ':')
+    --encoding ENC        Specify encoding of the input file
+    --record-buffered     Economical buffering of writes at record, not
+                          collection (default), level
+    --ignore-errors       log errors but do not stop serialization
+    --use-ld-context      add a JSON-LD context to JSON output
+    --add-ld-context-item TERM=URI
+                          map a term to a URI and add it to the output's JSON LD
+                          context
+
+Final Notes
+===========
+
+This manual is a work in progress and will grow and improve with Fiona.
+Questions and suggestions are very welcome. Please feel free to use the `issue
+tracker <https://github.com/Toblerity/Fiona/issues>`__ or email the author
+directly.
+
+Do see the `README <README.html>`__ for installation instructions and
+information about supported versions of Python and other software dependencies.
+
+Fiona would not be possible without the `contributions of other developers
+<README.html#credits>`__, especially Frank Warmerdam and Even Rouault, the
+developers of GDAL/OGR; and Mike Weisman, who saved Fiona from neglect and
+obscurity.
+
+References
+==========
+
+.. [Kent1978] William Kent, Data and Reality, North Holland, 1978.
+.. [ESRI1998] ESRI Shapefile Technical Description. July 1998. http://www.esri.com/library/whitepapers/pdfs/shapefile.pdf
+.. [GeoJSON] http://geojson.org
+.. [JSON] http://www.ietf.org/rfc/rfc4627
+.. [SFA] http://en.wikipedia.org/wiki/Simple_feature_access
+
diff --git a/fiona/__init__.py b/fiona/__init__.py
new file mode 100644
index 0000000..38a6e0b
--- /dev/null
+++ b/fiona/__init__.py
@@ -0,0 +1,238 @@
+# -*- coding: utf-8 -*-
+
+"""
+Fiona is OGR's neat, nimble, no-nonsense API.
+
+Fiona provides a minimal, uncomplicated Python interface to the open
+source GIS community's most trusted geodata access library and
+integrates readily with other Python GIS packages such as pyproj, Rtree
+and Shapely.
+
+How minimal? Fiona can read features as mappings from shapefiles or
+other GIS vector formats and write mappings as features to files using
+the same formats. That's all. There aren't any feature or geometry
+classes. Features and their geometries are just data.
+
+A Fiona feature is a Python mapping inspired by the GeoJSON format. It
+has `id`, 'geometry`, and `properties` keys. The value of `id` is
+a string identifier unique within the feature's parent collection. The
+`geometry` is another mapping with `type` and `coordinates` keys. The
+`properties` of a feature is another mapping corresponding to its
+attribute table. For example:
+
+  {'id': '1',
+   'geometry': {'type': 'Point', 'coordinates': (0.0, 0.0)},
+   'properties': {'label': u'Null Island'} }
+
+is a Fiona feature with a point geometry and one property. 
+
+Features are read and written using objects returned by the
+``collection`` function. These ``Collection`` objects are a lot like
+Python ``file`` objects. A ``Collection`` opened in reading mode serves
+as an iterator over features. One opened in a writing mode provides
+a ``write`` method.
+
+Usage
+-----
+
+Here's an example of reading a select few polygon features from
+a shapefile and for each, picking off the first vertex of the exterior
+ring of the polygon and using that as the point geometry for a new
+feature writing to a "points.shp" file.
+
+  >>> import fiona
+  >>> with fiona.open('docs/data/test_uk.shp', 'r') as inp:
+  ...     output_schema = inp.schema.copy()
+  ...     output_schema['geometry'] = 'Point'
+  ...     with collection(
+  ...             "points.shp", "w",
+  ...             crs=inp.crs, 
+  ...             driver="ESRI Shapefile", 
+  ...             schema=output_schema
+  ...             ) as out:
+  ...         for f in inp.filter(
+  ...                 bbox=(-5.0, 55.0, 0.0, 60.0)
+  ...                 ):
+  ...             value = f['geometry']['coordinates'][0][0]
+  ...             f['geometry'] = {
+  ...                 'type': 'Point', 'coordinates': value}
+  ...             out.write(f)
+
+Because Fiona collections are context managers, they are closed and (in
+writing modes) flush contents to disk when their ``with`` blocks end.
+"""
+
+__all__ = ['bounds', 'listlayers', 'open', 'prop_type', 'prop_width']
+__version__ = "1.4.4"
+
+import logging
+import os
+from six import string_types
+
+from fiona.collection import Collection, supported_drivers, vsi_path
+from fiona._drivers import driver_count, GDALEnv
+from fiona.odict import OrderedDict
+from fiona.ogrext import _bounds, _listlayers, FIELD_TYPES_MAP
+
+
+log = logging.getLogger('Fiona')
+class NullHandler(logging.Handler):
+    def emit(self, record):
+        pass
+log.addHandler(NullHandler())
+
+
+def open(
+        path, 
+        mode='r', 
+        driver=None, 
+        schema=None, 
+        crs=None,
+        encoding=None,
+        layer=None,
+        vfs=None ):
+    
+    """Open file at ``path`` in ``mode`` "r" (read), "a" (append), or
+    "w" (write) and return a ``Collection`` object.
+    
+    In write mode, a driver name such as "ESRI Shapefile" or "GPX" (see
+    OGR docs or ``ogr2ogr --help`` on the command line) and a schema
+    mapping such as:
+    
+      {'geometry': 'Point',
+       'properties': [('class', 'int'), ('label', 'str'), 
+                      ('value', 'float')]}
+    
+    must be provided. If a particular ordering of properties ("fields"
+    in GIS parlance) in the written file is desired, a list of (key,
+    value) pairs as above or an ordered dict is required. If no ordering
+    is needed, a standard dict will suffice.
+    
+    A coordinate reference system for collections in write mode can be
+    defined by the ``crs`` parameter. It takes Proj4 style mappings like
+    
+      {'proj': 'longlat', 'ellps': 'WGS84', 'datum': 'WGS84', 
+       'no_defs': True}
+    
+    The drivers used by Fiona will try to detect the encoding of data
+    files. If they fail, you may provide the proper ``encoding``, such
+    as 'Windows-1252' for the Natural Earth datasets.
+    
+    When the provided path is to a file containing multiple named layers
+    of data, a layer can be singled out by ``layer``.
+    
+    A virtual filesystem can be specified. The ``vfs`` parameter may be
+    an Apache Commons VFS style string beginning with "zip://" or
+    "tar://"". In this case, the ``path`` must be an absolute path
+    within that container.
+
+    """
+    # Parse the vfs into a vsi and an archive path.
+    path, vsi, archive = parse_paths(path, vfs)
+    if mode in ('a', 'r'):
+        if archive:
+            if not os.path.exists(archive):
+                raise IOError("no such archive file: %r" % archive)
+        elif path != '-' and not os.path.exists(path):
+            raise IOError("no such file or directory: %r" % path)
+        c = Collection(path, mode, 
+                encoding=encoding, layer=layer, vsi=vsi, archive=archive)
+    elif mode == 'w':
+        if schema:
+            # Make an ordered dict of schema properties.
+            this_schema = schema.copy()
+            this_schema['properties'] = OrderedDict(schema['properties'])
+        else:
+            this_schema = None
+        c = Collection(path, mode, 
+                crs=crs, driver=driver, schema=this_schema, 
+                encoding=encoding, layer=layer, vsi=vsi, archive=archive)
+    else:
+        raise ValueError(
+            "mode string must be one of 'r', 'w', or 'a', not %s" % mode)
+    return c
+
+collection = open
+
+def listlayers(path, vfs=None):
+    """Returns a list of layer names in their index order.
+    
+    The required ``path`` argument may be an absolute or relative file or
+    directory path.
+    
+    A virtual filesystem can be specified. The ``vfs`` parameter may be
+    an Apache Commons VFS style string beginning with "zip://" or
+    "tar://"". In this case, the ``path`` must be an absolute path within
+    that container.
+    """
+    if not isinstance(path, string_types):
+        raise TypeError("invalid path: %r" % path)
+    if vfs and not isinstance(vfs, string_types):
+        raise TypeError("invalid vfs: %r" % vfs)
+    
+    path, vsi, archive = parse_paths(path, vfs)
+    
+    if archive:
+        if not os.path.exists(archive):
+            raise IOError("no such archive file: %r" % archive)
+    elif not os.path.exists(path):
+        raise IOError("no such file or directory: %r" % path)
+    
+    with drivers():
+        return _listlayers(vsi_path(path, vsi, archive))
+
+def parse_paths(path, vfs=None):
+    archive = vsi = None
+    if vfs:
+        parts = vfs.split("://")
+        vsi = parts.pop(0) if parts else None
+        archive = parts.pop(0) if parts else None
+    else:
+        parts = path.split("://")
+        path = parts.pop() if parts else None
+        vsi = parts.pop() if parts else None
+    return path, vsi, archive
+
+def prop_width(val):
+    """Returns the width of a str type property.
+
+    Undefined for non-str properties. Example:
+
+      >>> prop_width('str:25')
+      25
+      >>> prop_width('str')
+      80
+    """
+    if val.startswith('str'):
+        return int((val.split(":")[1:] or ["80"])[0])
+    return None
+
+def prop_type(text):
+    """Returns a schema property's proper Python type.
+    
+    Example:
+    
+      >>> prop_type('int')
+      <class 'int'>
+      >>> prop_type('str:25')
+      <class 'str'>
+    """
+    key = text.split(':')[0]
+    return FIELD_TYPES_MAP[key]
+
+def drivers(*args, **kwargs):
+    """Returns a context manager with registered drivers."""
+    if driver_count == 0:
+        log.debug("Creating a chief GDALEnv in drivers()")
+        return GDALEnv(True, **kwargs)
+    else:
+        log.debug("Creating a not-responsible GDALEnv in drivers()")
+        return GDALEnv(False, **kwargs)
+
+def bounds(ob):
+    """Returns a (minx, miny, maxx, maxy) bounding box.
+    
+    The ``ob`` may be a feature record or geometry."""
+    geom = ob.get('geometry') or ob
+    return _bounds(geom)
+
diff --git a/fiona/_drivers.c b/fiona/_drivers.c
new file mode 100644
index 0000000..1159d6d
--- /dev/null
+++ b/fiona/_drivers.c
@@ -0,0 +1,4561 @@
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+
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+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
+   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
+   a quiet NaN. */
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#ifdef __cplusplus
+template<typename T>
+void __Pyx_call_destructor(T* x) {
+    x->~T();
+}
+#endif
+
+
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+#define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#define __PYX_HAVE__fiona___drivers
+#define __PYX_HAVE_API__fiona___drivers
+#include "cpl_conv.h"
+#include "cpl_error.h"
+#include "gdal.h"
+#include "ogr_api.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#ifdef PYREX_WITHOUT_ASSERTIONS
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
+    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
+    (sizeof(type) > sizeof(Py_ssize_t) &&               \
+          likely(v < (type)PY_SSIZE_T_MAX ||            \
+                 v == (type)PY_SSIZE_T_MAX)  &&         \
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
+                                v == (type)PY_SSIZE_T_MIN)))  ||  \
+    (sizeof(type) == sizeof(Py_ssize_t) &&              \
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
+#if PY_MAJOR_VERSION < 3
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#else
+#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
+#endif
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+
+static PyObject *__pyx_m;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "fiona/_drivers.pyx",
+};
+
+/*--- Type declarations ---*/
+struct __pyx_obj_5fiona_8_drivers_GDALEnv;
+
+/* "fiona/_drivers.pyx":50
+ * 
+ * 
+ * cdef class GDALEnv(object):             # <<<<<<<<<<<<<<
+ * 
+ *     cdef object is_chef
+ */
+struct __pyx_obj_5fiona_8_drivers_GDALEnv {
+  PyObject_HEAD
+  PyObject *is_chef;
+  PyObject *options;
+};
+
+#ifndef CYTHON_REFNANNY
+  #define CYTHON_REFNANNY 0
+#endif
+#if CYTHON_REFNANNY
+  typedef struct {
+    void (*INCREF)(void*, PyObject*, int);
+    void (*DECREF)(void*, PyObject*, int);
+    void (*GOTREF)(void*, PyObject*, int);
+    void (*GIVEREF)(void*, PyObject*, int);
+    void* (*SetupContext)(const char*, int, const char*);
+    void (*FinishContext)(void**);
+  } __Pyx_RefNannyAPIStruct;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname);
+  #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL;
+#ifdef WITH_THREAD
+  #define __Pyx_RefNannySetupContext(name, acquire_gil) \
+          if (acquire_gil) { \
+              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure(); \
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__); \
+              PyGILState_Release(__pyx_gilstate_save); \
+          } else { \
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__); \
+          }
+#else
+  #define __Pyx_RefNannySetupContext(name, acquire_gil) \
+          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
+#endif
+  #define __Pyx_RefNannyFinishContext() \
+          __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
+  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_XINCREF(r)  do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0)
+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+#else
+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {                            \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_XDECREF(tmp);                              \
+    } while (0)
+#define __Pyx_DECREF_SET(r, v) do {                             \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_DECREF(tmp);                               \
+    } while (0)
+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro))
+        return tp->tp_getattro(obj, attr_name);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
+#endif
+    return PyObject_GetAttr(obj, attr_name);
+}
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
+    const char* function_name);
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name);
+
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) : \
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb);
+
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename,
+                                  int full_traceback);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
+#else
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+}
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+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_Restore(type, value, tb);
+#endif
+}
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(type, value, tb);
+#endif
+}
+
+static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
+                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
+                                  int full_traceback) {
+    PyObject *old_exc, *old_val, *old_tb;
+    PyObject *ctx;
+    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
+    if (full_traceback) {
+        Py_XINCREF(old_exc);
+        Py_XINCREF(old_val);
+        Py_XINCREF(old_tb);
+        __Pyx_ErrRestore(old_exc, old_val, old_tb);
+        PyErr_PrintEx(1);
+    }
+    #if PY_MAJOR_VERSION < 3
+    ctx = PyString_FromString(name);
+    #else
+    ctx = PyUnicode_FromString(name);
+    #endif
+    __Pyx_ErrRestore(old_exc, old_val, old_tb);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject* args = PyTuple_Pack(1, arg);
+    return (likely(args)) ? __Pyx_PyObject_Call(func, args, NULL) : NULL;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                if (PyObject_IsSubclass(instance_class, type)) {
+                    type = instance_class;
+                } else {
+                    instance_class = NULL;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+#if PY_VERSION_HEX >= 0x03030000
+    if (cause) {
+#else
+    if (cause && cause != Py_None) {
+#endif
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+static CYTHON_INLINE int __Pyx_IterFinish(void) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    PyObject* exc_type = tstate->curexc_type;
+    if (unlikely(exc_type)) {
+        if (likely(exc_type == PyExc_StopIteration) || PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration)) {
+            PyObject *exc_value, *exc_tb;
+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#endif
+}
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    } else {
+        return __Pyx_IterFinish();
+    }
+    return 0;
+}
+
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
+    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
+    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
+        PyErr_Format(PyExc_ImportError,
+        #if PY_MAJOR_VERSION < 3
+            "cannot import name %.230s", PyString_AS_STRING(name));
+        #else
+            "cannot import name %S", name);
+        #endif
+    }
+    return value;
+}
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases) {
+    Py_ssize_t i, nbases = PyTuple_GET_SIZE(bases);
+    for (i=0; i < nbases; i++) {
+        PyTypeObject *tmptype;
+        PyObject *tmp = PyTuple_GET_ITEM(bases, i);
+        tmptype = Py_TYPE(tmp);
+#if PY_MAJOR_VERSION < 3
+        if (tmptype == &PyClass_Type)
+            continue;
+#endif
+        if (!metaclass) {
+            metaclass = tmptype;
+            continue;
+        }
+        if (PyType_IsSubtype(metaclass, tmptype))
+            continue;
+        if (PyType_IsSubtype(tmptype, metaclass)) {
+            metaclass = tmptype;
+            continue;
+        }
+        PyErr_SetString(PyExc_TypeError,
+                        "metaclass conflict: "
+                        "the metaclass of a derived class "
+                        "must be a (non-strict) subclass "
+                        "of the metaclasses of all its bases");
+        return NULL;
+    }
+    if (!metaclass) {
+#if PY_MAJOR_VERSION < 3
+        metaclass = &PyClass_Type;
+#else
+        metaclass = &PyType_Type;
+#endif
+    }
+    Py_INCREF((PyObject*) metaclass);
+    return (PyObject*) metaclass;
+}
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* fake_module;
+    PyTypeObject* cached_type = NULL;
+    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
+    if (!fake_module) return NULL;
+    Py_INCREF(fake_module);
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
+    if (cached_type) {
+        if (!PyType_Check((PyObject*)cached_type)) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s is not a type object",
+                type->tp_name);
+            goto bad;
+        }
+        if (cached_type->tp_basicsize != type->tp_basicsize) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s has the wrong size, try recompiling",
+                type->tp_name);
+            goto bad;
+        }
+    } else {
+        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+        PyErr_Clear();
+        if (PyType_Ready(type) < 0) goto bad;
+        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
+            goto bad;
+        Py_INCREF(type);
+        cached_type = type;
+    }
+done:
+    Py_DECREF(fake_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
+}
+
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (unlikely(op->func_doc == NULL)) {
+        if (op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    op->func_doc = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_name == NULL)) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+        if (unlikely(op->func_name == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_qualname;
+    Py_INCREF(value);
+    op->func_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    Py_DECREF(res);
+    return 0;
+}
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyTuple_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_tuple;
+    op->defaults_tuple = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_tuple;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_kwdict;
+    op->defaults_kwdict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_kwdict;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    tmp = op->func_annotations;
+    op->func_annotations = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->func_annotations;
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+#ifndef PY_WRITE_RESTRICTED
+#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
+#endif
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyMem_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return PyMethod_New(func,
+                            type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
+#endif
+}
+#if CYTHON_COMPILING_IN_PYPY
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    Py_ssize_t size;
+    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 0)
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 1)
+                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+#else
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#endif
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_Call,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+#else
+    offsetof(PyCFunctionObject, m_weakreflist),
+#endif
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_CyFunction_descr_get,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#endif
+};
+static int __Pyx_CyFunction_init(void) {
+#if !CYTHON_COMPILING_IN_PYPY
+    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
+#endif
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+    if (__pyx_CyFunctionType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyMem_Malloc(size);
+    if (!m->defaults)
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name,
+                                           PyObject *qualname, PyObject *mkw, PyObject *modname, PyObject *doc) {
+    PyObject *ns;
+    if (metaclass) {
+        PyObject *prep = __Pyx_PyObject_GetAttrStr(metaclass, __pyx_n_s_prepare);
+        if (prep) {
+            PyObject *pargs = PyTuple_Pack(2, name, bases);
+            if (unlikely(!pargs)) {
+                Py_DECREF(prep);
+                return NULL;
+            }
+            ns = PyObject_Call(prep, pargs, mkw);
+            Py_DECREF(prep);
+            Py_DECREF(pargs);
+        } else {
+            if (unlikely(!PyErr_ExceptionMatches(PyExc_AttributeError)))
+                return NULL;
+            PyErr_Clear();
+            ns = PyDict_New();
+        }
+    } else {
+        ns = PyDict_New();
+    }
+    if (unlikely(!ns))
+        return NULL;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_module, modname) < 0)) goto bad;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_qualname, qualname) < 0)) goto bad;
+    if (unlikely(doc && PyObject_SetItem(ns, __pyx_n_s_doc, doc) < 0)) goto bad;
+    return ns;
+bad:
+    Py_DECREF(ns);
+    return NULL;
+}
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases,
+                                      PyObject *dict, PyObject *mkw,
+                                      int calculate_metaclass, int allow_py2_metaclass) {
+    PyObject *result, *margs;
+    PyObject *owned_metaclass = NULL;
+    if (allow_py2_metaclass) {
+        owned_metaclass = PyObject_GetItem(dict, __pyx_n_s_metaclass);
+        if (owned_metaclass) {
+            metaclass = owned_metaclass;
+        } else if (likely(PyErr_ExceptionMatches(PyExc_KeyError))) {
+            PyErr_Clear();
+        } else {
+            return NULL;
+        }
+    }
+    if (calculate_metaclass && (!metaclass || PyType_Check(metaclass))) {
+        metaclass = __Pyx_CalculateMetaclass((PyTypeObject*) metaclass, bases);
+        Py_XDECREF(owned_metaclass);
+        if (unlikely(!metaclass))
+            return NULL;
+        owned_metaclass = metaclass;
+    }
+    margs = PyTuple_Pack(3, name, bases, dict);
+    if (unlikely(!margs)) {
+        result = NULL;
+    } else {
+        result = PyObject_Call(metaclass, margs, mkw);
+        Py_DECREF(margs);
+    }
+    Py_XDECREF(owned_metaclass);
+    return result;
+}
+
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = (start + end) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        PyThreadState_GET(), /*PyThreadState *tstate,*/
+        py_code,             /*PyCodeObject *code,*/
+        __pyx_d,      /*PyObject *globals,*/
+        0                    /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    py_frame->f_lineno = py_line;
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_VERSION_HEX < 0x03030000
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.')) {
+                #if PY_VERSION_HEX < 0x03030000
+                PyObject *py_level = PyInt_FromLong(1);
+                if (!py_level)
+                    goto bad;
+                module = PyObject_CallFunctionObjArgs(py_import,
+                    name, global_dict, empty_dict, list, py_level, NULL);
+                Py_DECREF(py_level);
+                #else
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                #endif
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_VERSION_HEX < 0x03030000
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_VERSION_HEX < 0x03030000
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
+    {                                                                     \
+        func_type value = func_value;                                     \
+        if (sizeof(target_type) < sizeof(func_type)) {                    \
+            if (unlikely(value != (func_type) (target_type) value)) {     \
+                func_type zero = 0;                                       \
+                if (is_unsigned && unlikely(value < zero))                \
+                    goto raise_neg_overflow;                              \
+                else                                                      \
+                    goto raise_overflow;                                  \
+            }                                                             \
+        }                                                                 \
+        return (target_type) value;                                       \
+    }
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+ #endif
+#endif
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(long) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
+            } else if (sizeof(long) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
+            } else if (sizeof(int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+#if PY_VERSION_HEX < 0x03030000
+        char* defenc_c;
+        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+        if (!defenc) return NULL;
+        defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        {
+            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+            char* c;
+            for (c = defenc_c; c < end; c++) {
+                if ((unsigned char) (*c) >= 128) {
+                    PyUnicode_AsASCIIString(o);
+                    return NULL;
+                }
+            }
+        }
+#endif
+        *length = PyBytes_GET_SIZE(defenc);
+        return defenc_c;
+#else
+        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        if (PyUnicode_IS_ASCII(o)) {
+            *length = PyUnicode_GET_LENGTH(o);
+            return PyUnicode_AsUTF8(o);
+        } else {
+            PyUnicode_AsASCIIString(o);
+            return NULL;
+        }
+#else
+        return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+#endif
+    } else
+#endif
+#if !CYTHON_COMPILING_IN_PYPY
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+  PyNumberMethods *m;
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (PyInt_Check(x) || PyLong_Check(x))
+#else
+  if (PyLong_Check(x))
+#endif
+    return Py_INCREF(x), x;
+  m = Py_TYPE(x)->tp_as_number;
+#if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = PyNumber_Long(x);
+  }
+#else
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Long(x);
+  }
+#endif
+  if (res) {
+#if PY_MAJOR_VERSION < 3
+    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+#else
+    if (!PyLong_Check(res)) {
+#endif
+      PyErr_Format(PyExc_TypeError,
+                   "__%.4s__ returned non-%.4s (type %.200s)",
+                   name, name, Py_TYPE(res)->tp_name);
+      Py_DECREF(res);
+      return NULL;
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b)))
+      return PyInt_AS_LONG(b);
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+     #if CYTHON_USE_PYLONG_INTERNALS
+       switch (Py_SIZE(b)) {
+       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
+       case  0: return 0;
+       case  1: return ((PyLongObject*)b)->ob_digit[0];
+       }
+     #endif
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/fiona/_err.c b/fiona/_err.c
new file mode 100644
index 0000000..773f604
--- /dev/null
+++ b/fiona/_err.c
@@ -0,0 +1,2432 @@
+/* Generated by Cython 0.21 */
+
+#define PY_SSIZE_T_CLEAN
+#ifndef CYTHON_USE_PYLONG_INTERNALS
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#else
+#include "pyconfig.h"
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 1
+#else
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#endif
+#endif
+#endif
+#include "Python.h"
+#ifndef Py_PYTHON_H
+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03020000)
+    #error Cython requires Python 2.6+ or Python 3.2+.
+#else
+#define CYTHON_ABI "0_21"
+#include <stddef.h>
+#ifndef offsetof
+#define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+#endif
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+#ifndef DL_IMPORT
+  #define DL_IMPORT(t) t
+#endif
+#ifndef DL_EXPORT
+  #define DL_EXPORT(t) t
+#endif
+#ifndef PY_LONG_LONG
+  #define PY_LONG_LONG LONG_LONG
+#endif
+#ifndef Py_HUGE_VAL
+  #define Py_HUGE_VAL HUGE_VAL
+#endif
+#ifdef PYPY_VERSION
+#define CYTHON_COMPILING_IN_PYPY 1
+#define CYTHON_COMPILING_IN_CPYTHON 0
+#else
+#define CYTHON_COMPILING_IN_PYPY 0
+#define CYTHON_COMPILING_IN_CPYTHON 1
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600
+#define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_CHECKTYPES 0
+  #define Py_TPFLAGS_HAVE_INDEX 0
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+#if PY_VERSION_HEX < 0x030400a1 && !defined(Py_TPFLAGS_HAVE_FINALIZE)
+  #define Py_TPFLAGS_HAVE_FINALIZE 0
+#endif
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
+                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+#else
+  #define CYTHON_PEP393_ENABLED 0
+  #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+#endif
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
+#else
+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ? \
+      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
+   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
+   a quiet NaN. */
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#ifdef __cplusplus
+template<typename T>
+void __Pyx_call_destructor(T* x) {
+    x->~T();
+}
+#endif
+
+
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+#define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#define __PYX_HAVE__fiona___err
+#define __PYX_HAVE_API__fiona___err
+#include "cpl_error.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#ifdef PYREX_WITHOUT_ASSERTIONS
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
+    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
+    (sizeof(type) > sizeof(Py_ssize_t) &&               \
+          likely(v < (type)PY_SSIZE_T_MAX ||            \
+                 v == (type)PY_SSIZE_T_MAX)  &&         \
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
+                                v == (type)PY_SSIZE_T_MIN)))  ||  \
+    (sizeof(type) == sizeof(Py_ssize_t) &&              \
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
+#if PY_MAJOR_VERSION < 3
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#else
+#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
+#endif
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+
+static PyObject *__pyx_m;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "fiona/_err.pyx",
+};
+
+/*--- Type declarations ---*/
+struct __pyx_obj_5fiona_4_err_GDALErrCtxManager;
+
+/* "fiona/_err.pyx":54
+ * 
+ * 
+ * cdef class GDALErrCtxManager:             # <<<<<<<<<<<<<<
+ *     """A manager for GDAL error handling contexts."""
+ * 
+ */
+struct __pyx_obj_5fiona_4_err_GDALErrCtxManager {
+  PyObject_HEAD
+};
+
+#ifndef CYTHON_REFNANNY
+  #define CYTHON_REFNANNY 0
+#endif
+#if CYTHON_REFNANNY
+  typedef struct {
+    void (*INCREF)(void*, PyObject*, int);
+    void (*DECREF)(void*, PyObject*, int);
+    void (*GOTREF)(void*, PyObject*, int);
+    void (*GIVEREF)(void*, PyObject*, int);
+    void* (*SetupContext)(const char*, int, const char*);
+    void (*FinishContext)(void**);
+  } __Pyx_RefNannyAPIStruct;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname);
+  #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL;
+#ifdef WITH_THREAD
+  #define __Pyx_RefNannySetupContext(name, acquire_gil) \
+          if (acquire_gil) { \
+              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure(); \
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__); \
+              PyGILState_Release(__pyx_gilstate_save); \
+          } else { \
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__); \
+          }
+#else
+  #define __Pyx_RefNannySetupContext(name, acquire_gil) \
+          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
+#endif
+  #define __Pyx_RefNannyFinishContext() \
+          __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
+  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_XINCREF(r)  do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0)
+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+#else
+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {                            \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_XDECREF(tmp);                              \
+    } while (0)
+#define __Pyx_DECREF_SET(r, v) do {                             \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_DECREF(tmp);                               \
+    } while (0)
+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro))
+        return tp->tp_getattro(obj, attr_name);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
+#endif
+    return PyObject_GetAttr(obj, attr_name);
+}
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
+    const char* function_name);
+
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name);
+
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) : \
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
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+  0, /*tp_getset*/
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+ * 
+ */
+  __pyx_t_1 = __Pyx_PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_5fiona_4_err_GDALErrCtxManager)), __pyx_empty_tuple, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_cpl_errs, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 69; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /* "fiona/_err.pyx":1
+ * """fiona._err             # <<<<<<<<<<<<<<
+ * 
+ * Transformation of GDAL C API errors to Python exceptions using Python's
+ */
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /*--- Wrapped vars code ---*/
+
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  if (__pyx_m) {
+    if (__pyx_d) {
+      __Pyx_AddTraceback("init fiona._err", __pyx_clineno, __pyx_lineno, __pyx_filename);
+      Py_DECREF(__pyx_d); __pyx_d = 0;
+    }
+    Py_DECREF(__pyx_m); __pyx_m = 0;
+  } else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_ImportError, "init fiona._err");
+  }
+  __pyx_L0:;
+  __Pyx_RefNannyFinishContext();
+  #if PY_MAJOR_VERSION < 3
+  return;
+  #else
+  return __pyx_m;
+  #endif
+}
+
+/* Runtime support code */
+#if CYTHON_REFNANNY
+static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) {
+    PyObject *m = NULL, *p = NULL;
+    void *r = NULL;
+    m = PyImport_ImportModule((char *)modname);
+    if (!m) goto end;
+    p = PyObject_GetAttrString(m, (char *)"RefNannyAPI");
+    if (!p) goto end;
+    r = PyLong_AsVoidPtr(p);
+end:
+    Py_XDECREF(p);
+    Py_XDECREF(m);
+    return (__Pyx_RefNannyAPIStruct *)r;
+}
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name) {
+    PyObject* result = __Pyx_PyObject_GetAttrStr(__pyx_b, name);
+    if (unlikely(!result)) {
+        PyErr_Format(PyExc_NameError,
+#if PY_MAJOR_VERSION >= 3
+            "name '%U' is not defined", name);
+#else
+            "name '%.200s' is not defined", PyString_AS_STRING(name));
+#endif
+    }
+    return result;
+}
+
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON
+    result = PyDict_GetItem(__pyx_d, name);
+    if (likely(result)) {
+        Py_INCREF(result);
+    } else {
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    if (!result) {
+        PyErr_Clear();
+#endif
+        result = __Pyx_GetBuiltinName(name);
+    }
+    return result;
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyList_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyTuple_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely((n >= 0) & (n < PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely((n >= 0) & (n < PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return NULL;
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject* args = PyTuple_Pack(1, arg);
+    return (likely(args)) ? __Pyx_PyObject_Call(func, args, NULL) : NULL;
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_Restore(type, value, tb);
+#endif
+}
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(type, value, tb);
+#endif
+}
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                if (PyObject_IsSubclass(instance_class, type)) {
+                    type = instance_class;
+                } else {
+                    instance_class = NULL;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+#if PY_VERSION_HEX >= 0x03030000
+    if (cause) {
+#else
+    if (cause && cause != Py_None) {
+#endif
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = (start + end) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        PyThreadState_GET(), /*PyThreadState *tstate,*/
+        py_code,             /*PyCodeObject *code,*/
+        __pyx_d,      /*PyObject *globals,*/
+        0                    /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    py_frame->f_lineno = py_line;
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
+    {                                                                     \
+        func_type value = func_value;                                     \
+        if (sizeof(target_type) < sizeof(func_type)) {                    \
+            if (unlikely(value != (func_type) (target_type) value)) {     \
+                func_type zero = 0;                                       \
+                if (is_unsigned && unlikely(value < zero))                \
+                    goto raise_neg_overflow;                              \
+                else                                                      \
+                    goto raise_overflow;                                  \
+            }                                                             \
+        }                                                                 \
+        return (target_type) value;                                       \
+    }
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+ #endif
+#endif
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(long) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
+            } else if (sizeof(long) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
+            } else if (sizeof(int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+#if PY_VERSION_HEX < 0x03030000
+        char* defenc_c;
+        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+        if (!defenc) return NULL;
+        defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        {
+            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+            char* c;
+            for (c = defenc_c; c < end; c++) {
+                if ((unsigned char) (*c) >= 128) {
+                    PyUnicode_AsASCIIString(o);
+                    return NULL;
+                }
+            }
+        }
+#endif
+        *length = PyBytes_GET_SIZE(defenc);
+        return defenc_c;
+#else
+        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        if (PyUnicode_IS_ASCII(o)) {
+            *length = PyUnicode_GET_LENGTH(o);
+            return PyUnicode_AsUTF8(o);
+        } else {
+            PyUnicode_AsASCIIString(o);
+            return NULL;
+        }
+#else
+        return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+#endif
+    } else
+#endif
+#if !CYTHON_COMPILING_IN_PYPY
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+  PyNumberMethods *m;
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (PyInt_Check(x) || PyLong_Check(x))
+#else
+  if (PyLong_Check(x))
+#endif
+    return Py_INCREF(x), x;
+  m = Py_TYPE(x)->tp_as_number;
+#if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = PyNumber_Long(x);
+  }
+#else
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Long(x);
+  }
+#endif
+  if (res) {
+#if PY_MAJOR_VERSION < 3
+    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+#else
+    if (!PyLong_Check(res)) {
+#endif
+      PyErr_Format(PyExc_TypeError,
+                   "__%.4s__ returned non-%.4s (type %.200s)",
+                   name, name, Py_TYPE(res)->tp_name);
+      Py_DECREF(res);
+      return NULL;
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b)))
+      return PyInt_AS_LONG(b);
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+     #if CYTHON_USE_PYLONG_INTERNALS
+       switch (Py_SIZE(b)) {
+       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
+       case  0: return 0;
+       case  1: return ((PyLongObject*)b)->ob_digit[0];
+       }
+     #endif
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/fiona/_geometry.c b/fiona/_geometry.c
new file mode 100644
index 0000000..02cdaf9
--- /dev/null
+++ b/fiona/_geometry.c
@@ -0,0 +1,10093 @@
+/* Generated by Cython 0.21 */
+
+#define PY_SSIZE_T_CLEAN
+#ifndef CYTHON_USE_PYLONG_INTERNALS
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#else
+#include "pyconfig.h"
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 1
+#else
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#endif
+#endif
+#endif
+#include "Python.h"
+#ifndef Py_PYTHON_H
+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03020000)
+    #error Cython requires Python 2.6+ or Python 3.2+.
+#else
+#define CYTHON_ABI "0_21"
+#include <stddef.h>
+#ifndef offsetof
+#define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+#endif
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+#ifndef DL_IMPORT
+  #define DL_IMPORT(t) t
+#endif
+#ifndef DL_EXPORT
+  #define DL_EXPORT(t) t
+#endif
+#ifndef PY_LONG_LONG
+  #define PY_LONG_LONG LONG_LONG
+#endif
+#ifndef Py_HUGE_VAL
+  #define Py_HUGE_VAL HUGE_VAL
+#endif
+#ifdef PYPY_VERSION
+#define CYTHON_COMPILING_IN_PYPY 1
+#define CYTHON_COMPILING_IN_CPYTHON 0
+#else
+#define CYTHON_COMPILING_IN_PYPY 0
+#define CYTHON_COMPILING_IN_CPYTHON 1
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600
+#define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_CHECKTYPES 0
+  #define Py_TPFLAGS_HAVE_INDEX 0
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+#if PY_VERSION_HEX < 0x030400a1 && !defined(Py_TPFLAGS_HAVE_FINALIZE)
+  #define Py_TPFLAGS_HAVE_FINALIZE 0
+#endif
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
+                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+#else
+  #define CYTHON_PEP393_ENABLED 0
+  #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+#endif
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
+#else
+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ? \
+      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
+   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
+   a quiet NaN. */
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#ifdef __cplusplus
+template<typename T>
+void __Pyx_call_destructor(T* x) {
+    x->~T();
+}
+#endif
+
+
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+#define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#define __PYX_HAVE__fiona___geometry
+#define __PYX_HAVE_API__fiona___geometry
+#include "cpl_conv.h"
+#include "cpl_string.h"
+#include "ogr_core.h"
+#include "ogr_srs_api.h"
+#include "ogr_api.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#ifdef PYREX_WITHOUT_ASSERTIONS
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
+    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
+    (sizeof(type) > sizeof(Py_ssize_t) &&               \
+          likely(v < (type)PY_SSIZE_T_MAX ||            \
+                 v == (type)PY_SSIZE_T_MAX)  &&         \
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
+                                v == (type)PY_SSIZE_T_MIN)))  ||  \
+    (sizeof(type) == sizeof(Py_ssize_t) &&              \
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
+#if PY_MAJOR_VERSION < 3
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#else
+#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
+#endif
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+
+static PyObject *__pyx_m;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "fiona/_geometry.pyx",
+};
+
+/* "ograpi.pxd":15
+ *     void    CSLDestroy (char **list)
+ * 
+ * ctypedef int OGRErr             # <<<<<<<<<<<<<<
+ * ctypedef struct OGREnvelope:
+ *     double MinX
+ */
+typedef int __pyx_t_5fiona_6ograpi_OGRErr;
+
+/*--- Type declarations ---*/
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder;
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder;
+struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr;
+struct __pyx_t_5fiona_6ograpi_OGREnvelope;
+typedef struct __pyx_t_5fiona_6ograpi_OGREnvelope __pyx_t_5fiona_6ograpi_OGREnvelope;
+
+/* "ograpi.pxd":16
+ * 
+ * ctypedef int OGRErr
+ * ctypedef struct OGREnvelope:             # <<<<<<<<<<<<<<
+ *     double MinX
+ *     double MaxX
+ */
+struct __pyx_t_5fiona_6ograpi_OGREnvelope {
+  double MinX;
+  double MaxX;
+  double MinY;
+  double MaxY;
+};
+
+/* "fiona/_geometry.pxd":2
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void *geom
+ *     cdef object code
+ */
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtab;
+  void *geom;
+  PyObject *code;
+  PyObject *geomtypename;
+  PyObject *ndims;
+};
+
+
+/* "fiona/_geometry.pxd":21
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void * _createOgrGeometry(self, int geom_type)
+ *     cdef _addPointToGeometry(self, void *cogr_geometry, object coordinate)
+ */
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtab;
+};
+
+
+/* "fiona/_geometry.pyx":36
+ * 
+ * # mapping of GeoJSON type names to OGR integer geometry types
+ * GEOJSON2OGR_GEOMETRY_TYPES = dict((v, k) for k, v in GEOMETRY_TYPES.iteritems())             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr {
+  PyObject_HEAD
+  PyObject *__pyx_v_k;
+  PyObject *__pyx_v_v;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  Py_ssize_t __pyx_t_2;
+  int __pyx_t_3;
+};
+
+
+
+/* "fiona/_geometry.pyx":57
+ * 
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     """Builds Fiona (GeoJSON) geometries from an OGR geometry handle.
+ *     """
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder {
+  PyObject *(*_buildCoords)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildParts)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*build)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*build_wkb)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, PyObject *, int __pyx_skip_dispatch);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtabptr_5fiona_9_geometry_GeomBuilder;
+
+
+/* "fiona/_geometry.pyx":135
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     """Builds OGR geometries from Fiona geometries.
+ *     """
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder {
+  void *(*_createOgrGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, int);
+  PyObject *(*_addPointToGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, void *, PyObject *);
+  void *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*build)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtabptr_5fiona_9_geometry_OGRGeomBuilder;
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+  #define __Pyx_GIVEREF(r)
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+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
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+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
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+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
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+#define __Pyx_GetItemInt_ByteArray(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_ByteArray_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "bytearray index out of range"), -1))
+static CYTHON_INLINE int __Pyx_GetItemInt_ByteArray_Fast(PyObject* string, Py_ssize_t i,
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+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb);
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+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
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+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
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+        PyList_SET_ITEM(list, len, x);
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+    return PyList_Append(list, x);
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+#else
+#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
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+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
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+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) : \
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
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+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
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+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
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+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
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+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
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+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
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+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
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+#else
+#define __Pyx_ListComp_Append(L,x) PyList_Append(L,x)
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+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *, PyObject *);
+
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename,
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+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetSlice(
+        PyObject* obj, Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** py_start, PyObject** py_stop, PyObject** py_slice,
+        int has_cstart, int has_cstop, int wraparound);
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+#include <string.h>
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+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
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+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
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+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyString_Equals __Pyx_PyUnicode_Equals
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+#define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
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+static int __Pyx_SetVtable(PyObject *dict, void *vtable);
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+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases);
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+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
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+#define __Pyx_CyFunction_USED 1
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+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CyFunction_GetClosure(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#define __Pyx_CyFunction_GetClassObj(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_classobj)
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+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
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+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildCoords(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, void *__pyx_v_geom); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildLinearRing(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildParts(CYTHON_UNUSED struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, void *__pyx_v_geom); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildGeometryCollection(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder_build(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, void *__pyx_v_geom); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder_build_wkb(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, PyObject *__pyx_v_wkb, int __pyx_skip_dispatch); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__createOgrGeometry(CYTHON_UNUSED struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, int __pyx_v_geom_type); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__addPointToGeometry(CYTHON_UNUSED struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, void *__pyx_v_cogr_geometry, PyObject *__pyx_v_coordinate); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildPoint(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildLineString(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildLinearRing(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildPolygon(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildMultiPoint(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildMultiLineString(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildMultiPolygon(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildGeometryCollection(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder_build(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_geometry); /* proto*/
+
+/* Module declarations from 'fiona' */
+
+/* Module declarations from 'fiona.ograpi' */
+
+/* Module declarations from 'fiona._geometry' */
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_GeomBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_OGRGeomBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry___pyx_scope_struct__genexpr = 0;
+static void *__pyx_f_5fiona_9_geometry__createOgrGeomFromWKB(PyObject *); /*proto*/
+static PyObject *__pyx_f_5fiona_9_geometry__deleteOgrGeom(void *); /*proto*/
+#define __Pyx_MODULE_NAME "fiona._geometry"
+int __pyx_module_is_main_fiona___geometry = 0;
+
+/* Implementation of 'fiona._geometry' */
+static PyObject *__pyx_builtin_ValueError;
+static PyObject *__pyx_builtin_range;
+static PyObject *__pyx_builtin_Exception;
+static PyObject *__pyx_pf_5fiona_9_geometry_2genexpr(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11NullHandler_emit(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v_record); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder__buildPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_2_buildLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_4_buildLinearRing(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_6_buildPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_8_buildMultiPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_10_buildMultiLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_12_buildMultiPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_14_buildGeometryCollection(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_16build_wkb(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, PyObject *__pyx_v_wkb); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_geometryRT(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_geometry); /* proto */
+static PyObject *__pyx_tp_new_5fiona_9_geometry_GeomBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_9_geometry_OGRGeomBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_9_geometry___pyx_scope_struct__genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static char __pyx_k_doc[] = "__doc__";
+static char __pyx_k_get[] = "get";
+static char __pyx_k_log[] = "log";
+static char __pyx_k_None[] = "None";
+static char __pyx_k_args[] = "args";
+static char __pyx_k_emit[] = "emit";
+static char __pyx_k_main[] = "__main__";
+static char __pyx_k_self[] = "self";
+static char __pyx_k_send[] = "send";
+static char __pyx_k_test[] = "__test__";
+static char __pyx_k_type[] = "type";
+static char __pyx_k_Fiona[] = "Fiona";
+static char __pyx_k_Point[] = "Point";
+static char __pyx_k_build[] = "_build";
+static char __pyx_k_close[] = "close";
+static char __pyx_k_debug[] = "debug";
+static char __pyx_k_range[] = "range";
+static char __pyx_k_throw[] = "throw";
+static char __pyx_k_import[] = "__import__";
+static char __pyx_k_module[] = "__module__";
+static char __pyx_k_record[] = "record";
+static char __pyx_k_result[] = "result";
+static char __pyx_k_Handler[] = "Handler";
+static char __pyx_k_Polygon[] = "Polygon";
+static char __pyx_k_Unknown[] = "Unknown";
+static char __pyx_k_genexpr[] = "genexpr";
+static char __pyx_k_logging[] = "logging";
+static char __pyx_k_prepare[] = "__prepare__";
+static char __pyx_k_3D_Point[] = "3D Point";
+static char __pyx_k_geometry[] = "geometry";
+static char __pyx_k_qualname[] = "__qualname__";
+static char __pyx_k_Exception[] = "Exception";
+static char __pyx_k_Null_geom[] = "Null geom";
+static char __pyx_k_build_wkb[] = "build_wkb";
+static char __pyx_k_getLogger[] = "getLogger";
+static char __pyx_k_iteritems[] = "iteritems";
+static char __pyx_k_metaclass[] = "__metaclass__";
+static char __pyx_k_3D_Polygon[] = "3D Polygon";
+static char __pyx_k_Built_line[] = "Built line";
+static char __pyx_k_Built_part[] = "Built part";
+static char __pyx_k_Built_ring[] = "Built ring";
+static char __pyx_k_LineString[] = "LineString";
+static char __pyx_k_LinearRing[] = "LinearRing";
+static char __pyx_k_MultiPoint[] = "MultiPoint";
+static char __pyx_k_ValueError[] = "ValueError";
+static char __pyx_k_addHandler[] = "addHandler";
+static char __pyx_k_buildPoint[] = "_buildPoint";
+static char __pyx_k_geometries[] = "geometries";
+static char __pyx_k_geometryRT[] = "geometryRT";
+static char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
+static char __pyx_k_NullHandler[] = "NullHandler";
+static char __pyx_k_coordinates[] = "coordinates";
+static char __pyx_k_Added_line_s[] = "Added line %s";
+static char __pyx_k_Added_part_s[] = "Added part %s";
+static char __pyx_k_Added_ring_s[] = "Added ring %s";
+static char __pyx_k_Closing_ring[] = "Closing ring";
+static char __pyx_k_MultiPolygon[] = "MultiPolygon";
+static char __pyx_k_buildPolygon[] = "_buildPolygon";
+static char __pyx_k_3D_LineString[] = "3D LineString";
+static char __pyx_k_3D_MultiPoint[] = "3D MultiPoint";
+static char __pyx_k_Added_point_s[] = "Added point %s";
+static char __pyx_k_Adding_line_s[] = "Adding line %s";
+static char __pyx_k_Adding_part_s[] = "Adding part %s";
+static char __pyx_k_Adding_ring_s[] = "Adding ring %s";
+static char __pyx_k_Built_polygon[] = "Built polygon";
+static char __pyx_k_cogr_geometry[] = "cogr_geometry";
+static char __pyx_k_Adding_point_s[] = "Adding point %s";
+static char __pyx_k_GEOMETRY_TYPES[] = "GEOMETRY_TYPES";
+static char __pyx_k_3D_MultiPolygon[] = "3D MultiPolygon";
+static char __pyx_k_Added_polygon_s[] = "Added polygon %s";
+static char __pyx_k_MultiLineString[] = "MultiLineString";
+static char __pyx_k_buildLineString[] = "_buildLineString";
+static char __pyx_k_buildLinearRing[] = "_buildLinearRing";
+static char __pyx_k_buildMultiPoint[] = "_buildMultiPoint";
+static char __pyx_k_fiona__geometry[] = "fiona._geometry";
+static char __pyx_k_Adding_polygon_s[] = "Adding polygon %s";
+static char __pyx_k_NullHandler_emit[] = "NullHandler.emit";
+static char __pyx_k_buildMultiPolygon[] = "_buildMultiPolygon";
+static char __pyx_k_3D_MultiLineString[] = "3D MultiLineString";
+static char __pyx_k_GeometryCollection[] = "GeometryCollection";
+static char __pyx_k_buildMultiLineString[] = "_buildMultiLineString";
+static char __pyx_k_3D_GeometryCollection[] = "3D GeometryCollection";
+static char __pyx_k_buildGeometryCollection[] = "_buildGeometryCollection";
+static char __pyx_k_GEOJSON2OGR_GEOMETRY_TYPES[] = "GEOJSON2OGR_GEOMETRY_TYPES";
+static char __pyx_k_Unsupported_geometry_type_s[] = "Unsupported geometry type %s";
+static char __pyx_k_Users_sean_code_Fiona_fiona__ge[] = "/Users/sean/code/Fiona/fiona/_geometry.pyx";
+static char __pyx_k_Could_not_create_OGR_Geometry_of[] = "Could not create OGR Geometry of type: %i";
+static PyObject *__pyx_kp_s_3D_GeometryCollection;
+static PyObject *__pyx_kp_s_3D_LineString;
+static PyObject *__pyx_kp_s_3D_MultiLineString;
+static PyObject *__pyx_kp_s_3D_MultiPoint;
+static PyObject *__pyx_kp_s_3D_MultiPolygon;
+static PyObject *__pyx_kp_s_3D_Point;
+static PyObject *__pyx_kp_s_3D_Polygon;
+static PyObject *__pyx_kp_s_Added_line_s;
+static PyObject *__pyx_kp_s_Added_part_s;
+static PyObject *__pyx_kp_s_Added_point_s;
+static PyObject *__pyx_kp_s_Added_polygon_s;
+static PyObject *__pyx_kp_s_Added_ring_s;
+static PyObject *__pyx_kp_s_Adding_line_s;
+static PyObject *__pyx_kp_s_Adding_part_s;
+static PyObject *__pyx_kp_s_Adding_point_s;
+static PyObject *__pyx_kp_s_Adding_polygon_s;
+static PyObject *__pyx_kp_s_Adding_ring_s;
+static PyObject *__pyx_kp_s_Built_line;
+static PyObject *__pyx_kp_s_Built_part;
+static PyObject *__pyx_kp_s_Built_polygon;
+static PyObject *__pyx_kp_s_Built_ring;
+static PyObject *__pyx_kp_s_Closing_ring;
+static PyObject *__pyx_kp_s_Could_not_create_OGR_Geometry_of;
+static PyObject *__pyx_n_s_Exception;
+static PyObject *__pyx_n_s_Fiona;
+static PyObject *__pyx_n_s_GEOJSON2OGR_GEOMETRY_TYPES;
+static PyObject *__pyx_n_s_GEOMETRY_TYPES;
+static PyObject *__pyx_n_s_GeometryCollection;
+static PyObject *__pyx_n_s_Handler;
+static PyObject *__pyx_n_s_LineString;
+static PyObject *__pyx_n_s_LinearRing;
+static PyObject *__pyx_n_s_MultiLineString;
+static PyObject *__pyx_n_s_MultiPoint;
+static PyObject *__pyx_n_s_MultiPolygon;
+static PyObject *__pyx_n_s_None;
+static PyObject *__pyx_n_s_NullHandler;
+static PyObject *__pyx_n_s_NullHandler_emit;
+static PyObject *__pyx_kp_s_Null_geom;
+static PyObject *__pyx_n_s_Point;
+static PyObject *__pyx_n_s_Polygon;
+static PyObject *__pyx_n_s_Unknown;
+static PyObject *__pyx_kp_s_Unsupported_geometry_type_s;
+static PyObject *__pyx_kp_s_Users_sean_code_Fiona_fiona__ge;
+static PyObject *__pyx_n_s_ValueError;
+static PyObject *__pyx_n_s_addHandler;
+static PyObject *__pyx_n_s_args;
+static PyObject *__pyx_n_s_build;
+static PyObject *__pyx_n_s_buildGeometryCollection;
+static PyObject *__pyx_n_s_buildLineString;
+static PyObject *__pyx_n_s_buildLinearRing;
+static PyObject *__pyx_n_s_buildMultiLineString;
+static PyObject *__pyx_n_s_buildMultiPoint;
+static PyObject *__pyx_n_s_buildMultiPolygon;
+static PyObject *__pyx_n_s_buildPoint;
+static PyObject *__pyx_n_s_buildPolygon;
+static PyObject *__pyx_n_s_build_wkb;
+static PyObject *__pyx_n_s_close;
+static PyObject *__pyx_n_s_cogr_geometry;
+static PyObject *__pyx_n_s_coordinates;
+static PyObject *__pyx_n_s_debug;
+static PyObject *__pyx_n_s_doc;
+static PyObject *__pyx_n_s_emit;
+static PyObject *__pyx_n_s_fiona__geometry;
+static PyObject *__pyx_n_s_genexpr;
+static PyObject *__pyx_n_s_geometries;
+static PyObject *__pyx_n_s_geometry;
+static PyObject *__pyx_n_s_geometryRT;
+static PyObject *__pyx_n_s_get;
+static PyObject *__pyx_n_s_getLogger;
+static PyObject *__pyx_n_s_import;
+static PyObject *__pyx_n_s_iteritems;
+static PyObject *__pyx_n_s_log;
+static PyObject *__pyx_n_s_logging;
+static PyObject *__pyx_n_s_main;
+static PyObject *__pyx_n_s_metaclass;
+static PyObject *__pyx_n_s_module;
+static PyObject *__pyx_n_s_prepare;
+static PyObject *__pyx_n_s_pyx_vtable;
+static PyObject *__pyx_n_s_qualname;
+static PyObject *__pyx_n_s_range;
+static PyObject *__pyx_n_s_record;
+static PyObject *__pyx_n_s_result;
+static PyObject *__pyx_n_s_self;
+static PyObject *__pyx_n_s_send;
+static PyObject *__pyx_n_s_test;
+static PyObject *__pyx_n_s_throw;
+static PyObject *__pyx_n_s_type;
+static PyObject *__pyx_int_0;
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+}
+
+static void __pyx_tp_dealloc_5fiona_9_geometry___pyx_scope_struct__genexpr(PyObject *o) {
+  struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *p = (struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_k);
+  Py_CLEAR(p->__pyx_v_v);
+  Py_CLEAR(p->__pyx_t_0);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_5fiona_9_geometry___pyx_scope_struct__genexpr < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr)))) {
+    __pyx_freelist_5fiona_9_geometry___pyx_scope_struct__genexpr[__pyx_freecount_5fiona_9_geometry___pyx_scope_struct__genexpr++] = ((struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
+  }
+}
+
+static int __pyx_tp_traverse_5fiona_9_geometry___pyx_scope_struct__genexpr(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *p = (struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *)o;
+  if (p->__pyx_v_k) {
+    e = (*v)(p->__pyx_v_k, a); if (e) return e;
+  }
+  if (p->__pyx_v_v) {
+    e = (*v)(p->__pyx_v_v, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_9_geometry___pyx_scope_struct__genexpr(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *p = (struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *)o;
+  tmp = ((PyObject*)p->__pyx_v_k);
+  p->__pyx_v_k = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_v);
+  p->__pyx_v_v = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_5fiona_9_geometry___pyx_scope_struct__genexpr = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona._geometry.__pyx_scope_struct__genexpr", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  0, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyMethodDef __pyx_methods[] = {
+  {0, 0, 0, 0}
+};
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef __pyx_moduledef = {
+  #if PY_VERSION_HEX < 0x03020000
+    { PyObject_HEAD_INIT(NULL) NULL, 0, NULL },
+  #else
+    PyModuleDef_HEAD_INIT,
+  #endif
+    "_geometry",
+    0, /* m_doc */
+    -1, /* m_size */
+    __pyx_methods /* m_methods */,
+    NULL, /* m_reload */
+    NULL, /* m_traverse */
+    NULL, /* m_clear */
+    NULL /* m_free */
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+  {&__pyx_kp_s_Could_not_create_OGR_Geometry_of, __pyx_k_Could_not_create_OGR_Geometry_of, sizeof(__pyx_k_Could_not_create_OGR_Geometry_of), 0, 0, 1, 0},
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+  {&__pyx_n_s_GEOMETRY_TYPES, __pyx_k_GEOMETRY_TYPES, sizeof(__pyx_k_GEOMETRY_TYPES), 0, 0, 1, 1},
+  {&__pyx_n_s_GeometryCollection, __pyx_k_GeometryCollection, sizeof(__pyx_k_GeometryCollection), 0, 0, 1, 1},
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+  {&__pyx_n_s_MultiLineString, __pyx_k_MultiLineString, sizeof(__pyx_k_MultiLineString), 0, 0, 1, 1},
+  {&__pyx_n_s_MultiPoint, __pyx_k_MultiPoint, sizeof(__pyx_k_MultiPoint), 0, 0, 1, 1},
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+  {&__pyx_n_s_NullHandler_emit, __pyx_k_NullHandler_emit, sizeof(__pyx_k_NullHandler_emit), 0, 0, 1, 1},
+  {&__pyx_kp_s_Null_geom, __pyx_k_Null_geom, sizeof(__pyx_k_Null_geom), 0, 0, 1, 0},
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+  {&__pyx_n_s_buildMultiPolygon, __pyx_k_buildMultiPolygon, sizeof(__pyx_k_buildMultiPolygon), 0, 0, 1, 1},
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+ */
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+  /* "fiona/_geometry.pyx":87
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+  /* "fiona/_geometry.pyx":117
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+ *             log.debug("Built polygon")             # <<<<<<<<<<<<<<
+ *             ograpi.OGR_G_AddGeometryDirectly(cogr_geometry, cogr_part)
+ *             log.debug("Added polygon %s", part)
+ */
+  __pyx_tuple__8 = PyTuple_Pack(1, __pyx_kp_s_Built_polygon); if (unlikely(!__pyx_tuple__8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__8);
+  __Pyx_GIVEREF(__pyx_tuple__8);
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+  /* "fiona/_geometry.pyx":222
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+ *             log.debug("Built part")             # <<<<<<<<<<<<<<
+ *             ograpi.OGR_G_AddGeometryDirectly(cogr_geometry, cogr_part)
+ *             log.debug("Added part %s", part)
+ */
+  __pyx_tuple__9 = PyTuple_Pack(1, __pyx_kp_s_Built_part); if (unlikely(!__pyx_tuple__9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 222; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__9);
+  __Pyx_GIVEREF(__pyx_tuple__9);
+
+  /* "fiona/_geometry.pyx":229
+ *     cdef void * build(self, object geometry) except NULL:
+ *         cdef object typename = geometry['type']
+ *         cdef object coordinates = geometry.get('coordinates')             # <<<<<<<<<<<<<<
+ *         if typename == 'Point':
+ *             return self._buildPoint(coordinates)
+ */
+  __pyx_tuple__10 = PyTuple_Pack(1, __pyx_n_s_coordinates); if (unlikely(!__pyx_tuple__10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 229; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__10);
+  __Pyx_GIVEREF(__pyx_tuple__10);
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+  /* "fiona/_geometry.pyx":245
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+ *         elif typename == 'GeometryCollection':
+ *             coordinates = geometry.get('geometries')             # <<<<<<<<<<<<<<
+ *             return self._buildGeometryCollection(coordinates)
+ *         else:
+ */
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+  __Pyx_GIVEREF(__pyx_tuple__11);
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+ * 
+ * log = logging.getLogger("Fiona")             # <<<<<<<<<<<<<<
+ * class NullHandler(logging.Handler):
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+
+  /* "fiona/_geometry.pyx":256
+ * 
+ * 
+ * def geometryRT(geometry):             # <<<<<<<<<<<<<<
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+ */
+  __pyx_tuple__15 = PyTuple_Pack(3, __pyx_n_s_geometry, __pyx_n_s_cogr_geometry, __pyx_n_s_result); if (unlikely(!__pyx_tuple__15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 256; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  return 0;
+  __pyx_L1_error:;
+  return -1;
+}
+
+#if PY_MAJOR_VERSION < 3
+PyMODINIT_FUNC init_geometry(void); /*proto*/
+PyMODINIT_FUNC init_geometry(void)
+#else
+PyMODINIT_FUNC PyInit__geometry(void); /*proto*/
+PyMODINIT_FUNC PyInit__geometry(void)
+#endif
+{
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+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  PyObject *__pyx_t_4 = NULL;
+  PyObject *__pyx_t_5 = NULL;
+  int __pyx_lineno = 0;
+  const char *__pyx_filename = NULL;
+  int __pyx_clineno = 0;
+  __Pyx_RefNannyDeclarations
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+  __Pyx_RefNanny = __Pyx_RefNannyImportAPI("refnanny");
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+  __pyx_empty_tuple = PyTuple_New(0); if (unlikely(!__pyx_empty_tuple)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_empty_bytes = PyBytes_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_bytes)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  if (__Pyx_CyFunction_init() < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  if (__pyx_FusedFunction_init() < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #endif
+  #ifdef __Pyx_Generator_USED
+  if (__pyx_Generator_init() < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #endif
+  /*--- Library function declarations ---*/
+  /*--- Threads initialization code ---*/
+  #if defined(__PYX_FORCE_INIT_THREADS) && __PYX_FORCE_INIT_THREADS
+  #ifdef WITH_THREAD /* Python build with threading support? */
+  PyEval_InitThreads();
+  #endif
+  #endif
+  /*--- Module creation code ---*/
+  #if PY_MAJOR_VERSION < 3
+  __pyx_m = Py_InitModule4("_geometry", __pyx_methods, 0, 0, PYTHON_API_VERSION); Py_XINCREF(__pyx_m);
+  #else
+  __pyx_m = PyModule_Create(&__pyx_moduledef);
+  #endif
+  if (unlikely(!__pyx_m)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_d = PyModule_GetDict(__pyx_m); if (unlikely(!__pyx_d)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  Py_INCREF(__pyx_d);
+  __pyx_b = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_b)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #if CYTHON_COMPILING_IN_PYPY
+  Py_INCREF(__pyx_b);
+  #endif
+  if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  /*--- Initialize various global constants etc. ---*/
+  if (unlikely(__Pyx_InitGlobals() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #if PY_MAJOR_VERSION < 3 && (__PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT)
+  if (__Pyx_init_sys_getdefaultencoding_params() < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #endif
+  if (__pyx_module_is_main_fiona___geometry) {
+    if (PyObject_SetAttrString(__pyx_m, "__name__", __pyx_n_s_main) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  }
+  #if PY_MAJOR_VERSION >= 3
+  {
+    PyObject *modules = PyImport_GetModuleDict(); if (unlikely(!modules)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (!PyDict_GetItemString(modules, "fiona._geometry")) {
+      if (unlikely(PyDict_SetItemString(modules, "fiona._geometry", __pyx_m) < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    }
+  }
+  #endif
+  /*--- Builtin init code ---*/
+  if (unlikely(__Pyx_InitCachedBuiltins() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  /*--- Constants init code ---*/
+  if (unlikely(__Pyx_InitCachedConstants() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  /*--- Global init code ---*/
+  /*--- Variable export code ---*/
+  /*--- Function export code ---*/
+  /*--- Type init code ---*/
+  __pyx_vtabptr_5fiona_9_geometry_GeomBuilder = &__pyx_vtable_5fiona_9_geometry_GeomBuilder;
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+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildPoint = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildPoint;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildLineString = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildLineString;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildLinearRing = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildLinearRing;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildParts = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildParts;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildPolygon = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildPolygon;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildMultiPoint = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiPoint;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildMultiLineString = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiLineString;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildMultiPolygon = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiPolygon;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder._buildGeometryCollection = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder__buildGeometryCollection;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder.build = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *))__pyx_f_5fiona_9_geometry_11GeomBuilder_build;
+  __pyx_vtable_5fiona_9_geometry_GeomBuilder.build_wkb = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, PyObject *, int __pyx_skip_dispatch))__pyx_f_5fiona_9_geometry_11GeomBuilder_build_wkb;
+  if (PyType_Ready(&__pyx_type_5fiona_9_geometry_GeomBuilder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_type_5fiona_9_geometry_GeomBuilder.tp_print = 0;
+  if (__Pyx_SetVtable(__pyx_type_5fiona_9_geometry_GeomBuilder.tp_dict, __pyx_vtabptr_5fiona_9_geometry_GeomBuilder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttrString(__pyx_m, "GeomBuilder", (PyObject *)&__pyx_type_5fiona_9_geometry_GeomBuilder) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 57; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_5fiona_9_geometry_GeomBuilder = &__pyx_type_5fiona_9_geometry_GeomBuilder;
+  __pyx_vtabptr_5fiona_9_geometry_OGRGeomBuilder = &__pyx_vtable_5fiona_9_geometry_OGRGeomBuilder;
+  __pyx_vtable_5fiona_9_geometry_OGRGeomBuilder._createOgrGeometry = (void *(*)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, int))__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__createOgrGeometry;
+  __pyx_vtable_5fiona_9_geometry_OGRGeomBuilder._addPointToGeometry = (PyObject *(*)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, void *, PyObject *))__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__addPointToGeometry;
+  __pyx_vtable_5fiona_9_geometry_OGRGeomBuilder._buildPoint = (void *(*)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *))__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildPoint;
+  __pyx_vtable_5fiona_9_geometry_OGRGeomBuilder._buildLineString = (void *(*)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *))__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildLineString;
+  __pyx_vtable_5fiona_9_geometry_OGRGeomBuilder._buildLinearRing = (void *(*)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *))__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildLinearRing;
+  __pyx_vtable_5fiona_9_geometry_OGRGeomBuilder._buildPolygon = (void *(*)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *))__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildPolygon;
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+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /*--- Wrapped vars code ---*/
+
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_2);
+  __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_XDECREF(__pyx_t_5);
+  if (__pyx_m) {
+    if (__pyx_d) {
+      __Pyx_AddTraceback("init fiona._geometry", __pyx_clineno, __pyx_lineno, __pyx_filename);
+      Py_DECREF(__pyx_d); __pyx_d = 0;
+    }
+    Py_DECREF(__pyx_m); __pyx_m = 0;
+  } else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_ImportError, "init fiona._geometry");
+  }
+  __pyx_L0:;
+  __Pyx_RefNannyFinishContext();
+  #if PY_MAJOR_VERSION < 3
+  return;
+  #else
+  return __pyx_m;
+  #endif
+}
+
+/* Runtime support code */
+#if CYTHON_REFNANNY
+static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) {
+    PyObject *m = NULL, *p = NULL;
+    void *r = NULL;
+    m = PyImport_ImportModule((char *)modname);
+    if (!m) goto end;
+    p = PyObject_GetAttrString(m, (char *)"RefNannyAPI");
+    if (!p) goto end;
+    r = PyLong_AsVoidPtr(p);
+end:
+    Py_XDECREF(p);
+    Py_XDECREF(m);
+    return (__Pyx_RefNannyAPIStruct *)r;
+}
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name) {
+    PyObject* result = __Pyx_PyObject_GetAttrStr(__pyx_b, name);
+    if (unlikely(!result)) {
+        PyErr_Format(PyExc_NameError,
+#if PY_MAJOR_VERSION >= 3
+            "name '%U' is not defined", name);
+#else
+            "name '%.200s' is not defined", PyString_AS_STRING(name));
+#endif
+    }
+    return result;
+}
+
+static CYTHON_INLINE int __Pyx_IterFinish(void) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    PyObject* exc_type = tstate->curexc_type;
+    if (unlikely(exc_type)) {
+        if (likely(exc_type == PyExc_StopIteration) || PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration)) {
+            PyObject *exc_value, *exc_tb;
+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#endif
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject* args = PyTuple_Pack(1, arg);
+    return (likely(args)) ? __Pyx_PyObject_Call(func, args, NULL) : NULL;
+}
+#endif
+
+static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name) {
+    PyObject *method, *result = NULL;
+    method = __Pyx_PyObject_GetAttrStr(obj, method_name);
+    if (unlikely(!method)) goto bad;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (likely(PyMethod_Check(method))) {
+        PyObject *self = PyMethod_GET_SELF(method);
+        if (likely(self)) {
+            PyObject *function = PyMethod_GET_FUNCTION(method);
+            result = __Pyx_PyObject_CallOneArg(function, self);
+            Py_DECREF(method);
+            return result;
+        }
+    }
+#endif
+    result = __Pyx_PyObject_CallNoArg(method);
+    Py_DECREF(method);
+bad:
+    return result;
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    } else {
+        return __Pyx_IterFinish();
+    }
+    return 0;
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
+}
+
+static void __Pyx_UnpackTupleError(PyObject *t, Py_ssize_t index) {
+    if (t == Py_None) {
+      __Pyx_RaiseNoneNotIterableError();
+    } else if (PyTuple_GET_SIZE(t) < index) {
+      __Pyx_RaiseNeedMoreValuesError(PyTuple_GET_SIZE(t));
+    } else {
+      __Pyx_RaiseTooManyValuesError(index);
+    }
+}
+
+static CYTHON_INLINE int __Pyx_unpack_tuple2(PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2,
+                                             int is_tuple, int has_known_size, int decref_tuple) {
+    Py_ssize_t index;
+    PyObject *value1 = NULL, *value2 = NULL, *iter = NULL;
+    if (!is_tuple && unlikely(!PyTuple_Check(tuple))) {
+        iternextfunc iternext;
+        iter = PyObject_GetIter(tuple);
+        if (unlikely(!iter)) goto bad;
+        if (decref_tuple) { Py_DECREF(tuple); tuple = NULL; }
+        iternext = Py_TYPE(iter)->tp_iternext;
+        value1 = iternext(iter); if (unlikely(!value1)) { index = 0; goto unpacking_failed; }
+        value2 = iternext(iter); if (unlikely(!value2)) { index = 1; goto unpacking_failed; }
+        if (!has_known_size && unlikely(__Pyx_IternextUnpackEndCheck(iternext(iter), 2))) goto bad;
+        Py_DECREF(iter);
+    } else {
+        if (!has_known_size && unlikely(PyTuple_GET_SIZE(tuple) != 2)) {
+            __Pyx_UnpackTupleError(tuple, 2);
+            goto bad;
+        }
+#if CYTHON_COMPILING_IN_PYPY
+        value1 = PySequence_ITEM(tuple, 0);
+        if (unlikely(!value1)) goto bad;
+        value2 = PySequence_ITEM(tuple, 1);
+        if (unlikely(!value2)) goto bad;
+#else
+        value1 = PyTuple_GET_ITEM(tuple, 0);
+        value2 = PyTuple_GET_ITEM(tuple, 1);
+        Py_INCREF(value1);
+        Py_INCREF(value2);
+#endif
+        if (decref_tuple) { Py_DECREF(tuple); }
+    }
+    *pvalue1 = value1;
+    *pvalue2 = value2;
+    return 0;
+unpacking_failed:
+    if (!has_known_size && __Pyx_IterFinish() == 0)
+        __Pyx_RaiseNeedMoreValuesError(index);
+bad:
+    Py_XDECREF(iter);
+    Py_XDECREF(value1);
+    Py_XDECREF(value2);
+    if (decref_tuple) { Py_XDECREF(tuple); }
+    return -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* iterable, int is_dict, PyObject* method_name,
+                                                   Py_ssize_t* p_orig_length, int* p_source_is_dict) {
+    is_dict = is_dict || likely(PyDict_CheckExact(iterable));
+    *p_source_is_dict = is_dict;
+#if !CYTHON_COMPILING_IN_PYPY
+    if (is_dict) {
+        *p_orig_length = PyDict_Size(iterable);
+        Py_INCREF(iterable);
+        return iterable;
+    }
+#endif
+    *p_orig_length = 0;
+    if (method_name) {
+        PyObject* iter;
+        iterable = __Pyx_PyObject_CallMethod0(iterable, method_name);
+        if (!iterable)
+            return NULL;
+#if !CYTHON_COMPILING_IN_PYPY
+        if (PyTuple_CheckExact(iterable) || PyList_CheckExact(iterable))
+            return iterable;
+#endif
+        iter = PyObject_GetIter(iterable);
+        Py_DECREF(iterable);
+        return iter;
+    }
+    return PyObject_GetIter(iterable);
+}
+static CYTHON_INLINE int __Pyx_dict_iter_next(PyObject* iter_obj, Py_ssize_t orig_length, Py_ssize_t* ppos,
+                                              PyObject** pkey, PyObject** pvalue, PyObject** pitem, int source_is_dict) {
+    PyObject* next_item;
+#if !CYTHON_COMPILING_IN_PYPY
+    if (source_is_dict) {
+        PyObject *key, *value;
+        if (unlikely(orig_length != PyDict_Size(iter_obj))) {
+            PyErr_SetString(PyExc_RuntimeError, "dictionary changed size during iteration");
+            return -1;
+        }
+        if (unlikely(!PyDict_Next(iter_obj, ppos, &key, &value))) {
+            return 0;
+        }
+        if (pitem) {
+            PyObject* tuple = PyTuple_New(2);
+            if (unlikely(!tuple)) {
+                return -1;
+            }
+            Py_INCREF(key);
+            Py_INCREF(value);
+            PyTuple_SET_ITEM(tuple, 0, key);
+            PyTuple_SET_ITEM(tuple, 1, value);
+            *pitem = tuple;
+        } else {
+            if (pkey) {
+                Py_INCREF(key);
+                *pkey = key;
+            }
+            if (pvalue) {
+                Py_INCREF(value);
+                *pvalue = value;
+            }
+        }
+        return 1;
+    } else if (PyTuple_CheckExact(iter_obj)) {
+        Py_ssize_t pos = *ppos;
+        if (unlikely(pos >= PyTuple_GET_SIZE(iter_obj))) return 0;
+        *ppos = pos + 1;
+        next_item = PyTuple_GET_ITEM(iter_obj, pos);
+        Py_INCREF(next_item);
+    } else if (PyList_CheckExact(iter_obj)) {
+        Py_ssize_t pos = *ppos;
+        if (unlikely(pos >= PyList_GET_SIZE(iter_obj))) return 0;
+        *ppos = pos + 1;
+        next_item = PyList_GET_ITEM(iter_obj, pos);
+        Py_INCREF(next_item);
+    } else
+#endif
+    {
+        next_item = PyIter_Next(iter_obj);
+        if (unlikely(!next_item)) {
+            return __Pyx_IterFinish();
+        }
+    }
+    if (pitem) {
+        *pitem = next_item;
+    } else if (pkey && pvalue) {
+        if (__Pyx_unpack_tuple2(next_item, pkey, pvalue, source_is_dict, source_is_dict, 1))
+            return -1;
+    } else if (pkey) {
+        *pkey = next_item;
+    } else {
+        *pvalue = next_item;
+    }
+    return 1;
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON
+    result = PyDict_GetItem(__pyx_d, name);
+    if (likely(result)) {
+        Py_INCREF(result);
+    } else {
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    if (!result) {
+        PyErr_Clear();
+#endif
+        result = __Pyx_GetBuiltinName(name);
+    }
+    return result;
+}
+
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+static CYTHON_INLINE int __Pyx_GetItemInt_ByteArray_Fast(PyObject* string, Py_ssize_t i,
+                                                         int wraparound, int boundscheck) {
+    Py_ssize_t length;
+    if (wraparound | boundscheck) {
+        length = PyByteArray_GET_SIZE(string);
+        if (wraparound & unlikely(i < 0)) i += length;
+        if ((!boundscheck) || likely((0 <= i) & (i < length))) {
+            return (unsigned char) (PyByteArray_AS_STRING(string)[i]);
+        } else {
+            PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
+            return -1;
+        }
+    } else {
+        return (unsigned char) (PyByteArray_AS_STRING(string)[i]);
+    }
+}
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_Restore(type, value, tb);
+#endif
+}
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(type, value, tb);
+#endif
+}
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                if (PyObject_IsSubclass(instance_class, type)) {
+                    type = instance_class;
+                } else {
+                    instance_class = NULL;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+#if PY_VERSION_HEX >= 0x03030000
+    if (cause) {
+#else
+    if (cause && cause != Py_None) {
+#endif
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyList_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyTuple_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely((n >= 0) & (n < PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely((n >= 0) & (n < PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return NULL;
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *o, PyObject *n) {
+#if CYTHON_COMPILING_IN_CPYTHON
+#if PY_MAJOR_VERSION >= 3
+    if (likely(PyUnicode_Check(n)))
+#else
+    if (likely(PyString_Check(n)))
+#endif
+        return __Pyx_PyObject_GetAttrStr(o, n);
+#endif
+    return PyObject_GetAttr(o, n);
+}
+
+static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
+                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
+                                  int full_traceback) {
+    PyObject *old_exc, *old_val, *old_tb;
+    PyObject *ctx;
+    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
+    if (full_traceback) {
+        Py_XINCREF(old_exc);
+        Py_XINCREF(old_val);
+        Py_XINCREF(old_tb);
+        __Pyx_ErrRestore(old_exc, old_val, old_tb);
+        PyErr_PrintEx(1);
+    }
+    #if PY_MAJOR_VERSION < 3
+    ctx = PyString_FromString(name);
+    #else
+    ctx = PyUnicode_FromString(name);
+    #endif
+    __Pyx_ErrRestore(old_exc, old_val, old_tb);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetSlice(
+        PyObject* obj, Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** _py_start, PyObject** _py_stop, PyObject** _py_slice,
+        int has_cstart, int has_cstop, CYTHON_UNUSED int wraparound) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyMappingMethods* mp;
+#if PY_MAJOR_VERSION < 3
+    PySequenceMethods* ms = Py_TYPE(obj)->tp_as_sequence;
+    if (likely(ms && ms->sq_slice)) {
+        if (!has_cstart) {
+            if (_py_start && (*_py_start != Py_None)) {
+                cstart = __Pyx_PyIndex_AsSsize_t(*_py_start);
+                if ((cstart == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstart = 0;
+        }
+        if (!has_cstop) {
+            if (_py_stop && (*_py_stop != Py_None)) {
+                cstop = __Pyx_PyIndex_AsSsize_t(*_py_stop);
+                if ((cstop == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstop = PY_SSIZE_T_MAX;
+        }
+        if (wraparound && unlikely((cstart < 0) | (cstop < 0)) && likely(ms->sq_length)) {
+            Py_ssize_t l = ms->sq_length(obj);
+            if (likely(l >= 0)) {
+                if (cstop < 0) {
+                    cstop += l;
+                    if (cstop < 0) cstop = 0;
+                }
+                if (cstart < 0) {
+                    cstart += l;
+                    if (cstart < 0) cstart = 0;
+                }
+            } else {
+                if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                    PyErr_Clear();
+                else
+                    goto bad;
+            }
+        }
+        return ms->sq_slice(obj, cstart, cstop);
+    }
+#endif
+    mp = Py_TYPE(obj)->tp_as_mapping;
+    if (likely(mp && mp->mp_subscript))
+#endif
+    {
+        PyObject* result;
+        PyObject *py_slice, *py_start, *py_stop;
+        if (_py_slice) {
+            py_slice = *_py_slice;
+        } else {
+            PyObject* owned_start = NULL;
+            PyObject* owned_stop = NULL;
+            if (_py_start) {
+                py_start = *_py_start;
+            } else {
+                if (has_cstart) {
+                    owned_start = py_start = PyInt_FromSsize_t(cstart);
+                    if (unlikely(!py_start)) goto bad;
+                } else
+                    py_start = Py_None;
+            }
+            if (_py_stop) {
+                py_stop = *_py_stop;
+            } else {
+                if (has_cstop) {
+                    owned_stop = py_stop = PyInt_FromSsize_t(cstop);
+                    if (unlikely(!py_stop)) {
+                        Py_XDECREF(owned_start);
+                        goto bad;
+                    }
+                } else
+                    py_stop = Py_None;
+            }
+            py_slice = PySlice_New(py_start, py_stop, Py_None);
+            Py_XDECREF(owned_start);
+            Py_XDECREF(owned_stop);
+            if (unlikely(!py_slice)) goto bad;
+        }
+#if CYTHON_COMPILING_IN_CPYTHON
+        result = mp->mp_subscript(obj, py_slice);
+#else
+        result = PyObject_GetItem(obj, py_slice);
+#endif
+        if (!_py_slice) {
+            Py_DECREF(py_slice);
+        }
+        return result;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "'%.200s' object is unsliceable", Py_TYPE(obj)->tp_name);
+bad:
+    return NULL;
+}
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+    if (s1 == s2) {
+        return (equals == Py_EQ);
+    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
+        const char *ps1, *ps2;
+        Py_ssize_t length = PyBytes_GET_SIZE(s1);
+        if (length != PyBytes_GET_SIZE(s2))
+            return (equals == Py_NE);
+        ps1 = PyBytes_AS_STRING(s1);
+        ps2 = PyBytes_AS_STRING(s2);
+        if (ps1[0] != ps2[0]) {
+            return (equals == Py_NE);
+        } else if (length == 1) {
+            return (equals == Py_EQ);
+        } else {
+            int result = memcmp(ps1, ps2, (size_t)length);
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
+        return (equals == Py_NE);
+    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
+        return (equals == Py_NE);
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+#endif
+}
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+#if PY_MAJOR_VERSION < 3
+    PyObject* owned_ref = NULL;
+#endif
+    int s1_is_unicode, s2_is_unicode;
+    if (s1 == s2) {
+        goto return_eq;
+    }
+    s1_is_unicode = PyUnicode_CheckExact(s1);
+    s2_is_unicode = PyUnicode_CheckExact(s2);
+#if PY_MAJOR_VERSION < 3
+    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
+        owned_ref = PyUnicode_FromObject(s2);
+        if (unlikely(!owned_ref))
+            return -1;
+        s2 = owned_ref;
+        s2_is_unicode = 1;
+    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
+        owned_ref = PyUnicode_FromObject(s1);
+        if (unlikely(!owned_ref))
+            return -1;
+        s1 = owned_ref;
+        s1_is_unicode = 1;
+    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
+        return __Pyx_PyBytes_Equals(s1, s2, equals);
+    }
+#endif
+    if (s1_is_unicode & s2_is_unicode) {
+        Py_ssize_t length;
+        int kind;
+        void *data1, *data2;
+        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
+            return -1;
+        length = __Pyx_PyUnicode_GET_LENGTH(s1);
+        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
+            goto return_ne;
+        }
+        kind = __Pyx_PyUnicode_KIND(s1);
+        if (kind != __Pyx_PyUnicode_KIND(s2)) {
+            goto return_ne;
+        }
+        data1 = __Pyx_PyUnicode_DATA(s1);
+        data2 = __Pyx_PyUnicode_DATA(s2);
+        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
+            goto return_ne;
+        } else if (length == 1) {
+            goto return_eq;
+        } else {
+            int result = memcmp(data1, data2, (size_t)(length * kind));
+            #if PY_MAJOR_VERSION < 3
+            Py_XDECREF(owned_ref);
+            #endif
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & s2_is_unicode) {
+        goto return_ne;
+    } else if ((s2 == Py_None) & s1_is_unicode) {
+        goto return_ne;
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+return_eq:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_EQ);
+return_ne:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_NE);
+#endif
+}
+
+static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
+#if PY_VERSION_HEX >= 0x02070000
+    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+#else
+    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
+#endif
+    if (!ob)
+        goto bad;
+    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
+        goto bad;
+    Py_DECREF(ob);
+    return 0;
+bad:
+    Py_XDECREF(ob);
+    return -1;
+}
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases) {
+    Py_ssize_t i, nbases = PyTuple_GET_SIZE(bases);
+    for (i=0; i < nbases; i++) {
+        PyTypeObject *tmptype;
+        PyObject *tmp = PyTuple_GET_ITEM(bases, i);
+        tmptype = Py_TYPE(tmp);
+#if PY_MAJOR_VERSION < 3
+        if (tmptype == &PyClass_Type)
+            continue;
+#endif
+        if (!metaclass) {
+            metaclass = tmptype;
+            continue;
+        }
+        if (PyType_IsSubtype(metaclass, tmptype))
+            continue;
+        if (PyType_IsSubtype(tmptype, metaclass)) {
+            metaclass = tmptype;
+            continue;
+        }
+        PyErr_SetString(PyExc_TypeError,
+                        "metaclass conflict: "
+                        "the metaclass of a derived class "
+                        "must be a (non-strict) subclass "
+                        "of the metaclasses of all its bases");
+        return NULL;
+    }
+    if (!metaclass) {
+#if PY_MAJOR_VERSION < 3
+        metaclass = &PyClass_Type;
+#else
+        metaclass = &PyType_Type;
+#endif
+    }
+    Py_INCREF((PyObject*) metaclass);
+    return (PyObject*) metaclass;
+}
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* fake_module;
+    PyTypeObject* cached_type = NULL;
+    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
+    if (!fake_module) return NULL;
+    Py_INCREF(fake_module);
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
+    if (cached_type) {
+        if (!PyType_Check((PyObject*)cached_type)) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s is not a type object",
+                type->tp_name);
+            goto bad;
+        }
+        if (cached_type->tp_basicsize != type->tp_basicsize) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s has the wrong size, try recompiling",
+                type->tp_name);
+            goto bad;
+        }
+    } else {
+        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+        PyErr_Clear();
+        if (PyType_Ready(type) < 0) goto bad;
+        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
+            goto bad;
+        Py_INCREF(type);
+        cached_type = type;
+    }
+done:
+    Py_DECREF(fake_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
+}
+
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (unlikely(op->func_doc == NULL)) {
+        if (op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    op->func_doc = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_name == NULL)) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+        if (unlikely(op->func_name == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_qualname;
+    Py_INCREF(value);
+    op->func_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    Py_DECREF(res);
+    return 0;
+}
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyTuple_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_tuple;
+    op->defaults_tuple = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_tuple;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_kwdict;
+    op->defaults_kwdict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_kwdict;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    tmp = op->func_annotations;
+    op->func_annotations = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->func_annotations;
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+#ifndef PY_WRITE_RESTRICTED
+#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
+#endif
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyMem_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return PyMethod_New(func,
+                            type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
+#endif
+}
+#if CYTHON_COMPILING_IN_PYPY
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    Py_ssize_t size;
+    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 0)
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 1)
+                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+#else
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#endif
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_Call,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+#else
+    offsetof(PyCFunctionObject, m_weakreflist),
+#endif
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_CyFunction_descr_get,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#endif
+};
+static int __Pyx_CyFunction_init(void) {
+#if !CYTHON_COMPILING_IN_PYPY
+    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
+#endif
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+    if (__pyx_CyFunctionType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyMem_Malloc(size);
+    if (!m->defaults)
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name,
+                                           PyObject *qualname, PyObject *mkw, PyObject *modname, PyObject *doc) {
+    PyObject *ns;
+    if (metaclass) {
+        PyObject *prep = __Pyx_PyObject_GetAttrStr(metaclass, __pyx_n_s_prepare);
+        if (prep) {
+            PyObject *pargs = PyTuple_Pack(2, name, bases);
+            if (unlikely(!pargs)) {
+                Py_DECREF(prep);
+                return NULL;
+            }
+            ns = PyObject_Call(prep, pargs, mkw);
+            Py_DECREF(prep);
+            Py_DECREF(pargs);
+        } else {
+            if (unlikely(!PyErr_ExceptionMatches(PyExc_AttributeError)))
+                return NULL;
+            PyErr_Clear();
+            ns = PyDict_New();
+        }
+    } else {
+        ns = PyDict_New();
+    }
+    if (unlikely(!ns))
+        return NULL;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_module, modname) < 0)) goto bad;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_qualname, qualname) < 0)) goto bad;
+    if (unlikely(doc && PyObject_SetItem(ns, __pyx_n_s_doc, doc) < 0)) goto bad;
+    return ns;
+bad:
+    Py_DECREF(ns);
+    return NULL;
+}
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases,
+                                      PyObject *dict, PyObject *mkw,
+                                      int calculate_metaclass, int allow_py2_metaclass) {
+    PyObject *result, *margs;
+    PyObject *owned_metaclass = NULL;
+    if (allow_py2_metaclass) {
+        owned_metaclass = PyObject_GetItem(dict, __pyx_n_s_metaclass);
+        if (owned_metaclass) {
+            metaclass = owned_metaclass;
+        } else if (likely(PyErr_ExceptionMatches(PyExc_KeyError))) {
+            PyErr_Clear();
+        } else {
+            return NULL;
+        }
+    }
+    if (calculate_metaclass && (!metaclass || PyType_Check(metaclass))) {
+        metaclass = __Pyx_CalculateMetaclass((PyTypeObject*) metaclass, bases);
+        Py_XDECREF(owned_metaclass);
+        if (unlikely(!metaclass))
+            return NULL;
+        owned_metaclass = metaclass;
+    }
+    margs = PyTuple_Pack(3, name, bases, dict);
+    if (unlikely(!margs)) {
+        result = NULL;
+    } else {
+        result = PyObject_Call(metaclass, margs, mkw);
+        Py_DECREF(margs);
+    }
+    Py_XDECREF(owned_metaclass);
+    return result;
+}
+
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = (start + end) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        PyThreadState_GET(), /*PyThreadState *tstate,*/
+        py_code,             /*PyCodeObject *code,*/
+        __pyx_d,      /*PyObject *globals,*/
+        0                    /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    py_frame->f_lineno = py_line;
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_VERSION_HEX < 0x03030000
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.')) {
+                #if PY_VERSION_HEX < 0x03030000
+                PyObject *py_level = PyInt_FromLong(1);
+                if (!py_level)
+                    goto bad;
+                module = PyObject_CallFunctionObjArgs(py_import,
+                    name, global_dict, empty_dict, list, py_level, NULL);
+                Py_DECREF(py_level);
+                #else
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                #endif
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_VERSION_HEX < 0x03030000
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_VERSION_HEX < 0x03030000
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
+    {                                                                     \
+        func_type value = func_value;                                     \
+        if (sizeof(target_type) < sizeof(func_type)) {                    \
+            if (unlikely(value != (func_type) (target_type) value)) {     \
+                func_type zero = 0;                                       \
+                if (is_unsigned && unlikely(value < zero))                \
+                    goto raise_neg_overflow;                              \
+                else                                                      \
+                    goto raise_overflow;                                  \
+            }                                                             \
+        }                                                                 \
+        return (target_type) value;                                       \
+    }
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+ #endif
+#endif
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
+            } else if (sizeof(int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
+    const unsigned int neg_one = (unsigned int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(unsigned int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(unsigned int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(unsigned int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(long) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
+            } else if (sizeof(long) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = *type;
+    tstate->exc_value = *value;
+    tstate->exc_traceback = *tb;
+#else
+    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
+    PyErr_SetExcInfo(*type, *value, *tb);
+#endif
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
+}
+
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg) {
+    PyObject *method, *result = NULL;
+    method = __Pyx_PyObject_GetAttrStr(obj, method_name);
+    if (unlikely(!method)) goto bad;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (likely(PyMethod_Check(method))) {
+        PyObject *self = PyMethod_GET_SELF(method);
+        if (likely(self)) {
+            PyObject *args;
+            PyObject *function = PyMethod_GET_FUNCTION(method);
+            args = PyTuple_New(2);
+            if (unlikely(!args)) goto bad;
+            Py_INCREF(self);
+            PyTuple_SET_ITEM(args, 0, self);
+            Py_INCREF(arg);
+            PyTuple_SET_ITEM(args, 1, arg);
+            Py_INCREF(function);
+            Py_DECREF(method); method = NULL;
+            result = __Pyx_PyObject_Call(function, args, NULL);
+            Py_DECREF(args);
+            Py_DECREF(function);
+            return result;
+        }
+    }
+#endif
+    result = __Pyx_PyObject_CallOneArg(method, arg);
+bad:
+    Py_XDECREF(method);
+    return result;
+}
+
+static PyObject *__Pyx_Generator_Next(PyObject *self);
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value);
+static PyObject *__Pyx_Generator_Close(PyObject *self);
+static PyObject *__Pyx_Generator_Throw(PyObject *gen, PyObject *args);
+static PyTypeObject *__pyx_GeneratorType = 0;
+#define __Pyx_Generator_CheckExact(obj) (Py_TYPE(obj) == __pyx_GeneratorType)
+#define __Pyx_Generator_Undelegate(gen) Py_CLEAR((gen)->yieldfrom)
+#if 1 || PY_VERSION_HEX < 0x030300B0
+static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue) {
+    PyObject *et, *ev, *tb;
+    PyObject *value = NULL;
+    __Pyx_ErrFetch(&et, &ev, &tb);
+    if (!et) {
+        Py_XDECREF(tb);
+        Py_XDECREF(ev);
+        Py_INCREF(Py_None);
+        *pvalue = Py_None;
+        return 0;
+    }
+    if (unlikely(et != PyExc_StopIteration) &&
+            unlikely(!PyErr_GivenExceptionMatches(et, PyExc_StopIteration))) {
+        __Pyx_ErrRestore(et, ev, tb);
+        return -1;
+    }
+    if (likely(et == PyExc_StopIteration)) {
+        if (likely(!ev) || !PyObject_IsInstance(ev, PyExc_StopIteration)) {
+            if (!ev) {
+                Py_INCREF(Py_None);
+                ev = Py_None;
+            }
+            Py_XDECREF(tb);
+            Py_DECREF(et);
+            *pvalue = ev;
+            return 0;
+        }
+    }
+    PyErr_NormalizeException(&et, &ev, &tb);
+    if (unlikely(!PyObject_IsInstance(ev, PyExc_StopIteration))) {
+        __Pyx_ErrRestore(et, ev, tb);
+        return -1;
+    }
+    Py_XDECREF(tb);
+    Py_DECREF(et);
+#if PY_VERSION_HEX >= 0x030300A0
+    value = ((PyStopIterationObject *)ev)->value;
+    Py_INCREF(value);
+    Py_DECREF(ev);
+#else
+    {
+        PyObject* args = PyObject_GetAttr(ev, __pyx_n_s_args);
+        Py_DECREF(ev);
+        if (likely(args)) {
+            value = PyObject_GetItem(args, 0);
+            Py_DECREF(args);
+        }
+        if (unlikely(!value)) {
+            __Pyx_ErrRestore(NULL, NULL, NULL);
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+    }
+#endif
+    *pvalue = value;
+    return 0;
+}
+#endif
+static CYTHON_INLINE
+void __Pyx_Generator_ExceptionClear(__pyx_GeneratorObject *self) {
+    PyObject *exc_type = self->exc_type;
+    PyObject *exc_value = self->exc_value;
+    PyObject *exc_traceback = self->exc_traceback;
+    self->exc_type = NULL;
+    self->exc_value = NULL;
+    self->exc_traceback = NULL;
+    Py_XDECREF(exc_type);
+    Py_XDECREF(exc_value);
+    Py_XDECREF(exc_traceback);
+}
+static CYTHON_INLINE
+int __Pyx_Generator_CheckRunning(__pyx_GeneratorObject *gen) {
+    if (unlikely(gen->is_running)) {
+        PyErr_SetString(PyExc_ValueError,
+                        "generator already executing");
+        return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE
+PyObject *__Pyx_Generator_SendEx(__pyx_GeneratorObject *self, PyObject *value) {
+    PyObject *retval;
+    assert(!self->is_running);
+    if (unlikely(self->resume_label == 0)) {
+        if (unlikely(value && value != Py_None)) {
+            PyErr_SetString(PyExc_TypeError,
+                            "can't send non-None value to a "
+                            "just-started generator");
+            return NULL;
+        }
+    }
+    if (unlikely(self->resume_label == -1)) {
+        PyErr_SetNone(PyExc_StopIteration);
+        return NULL;
+    }
+    if (value) {
+#if CYTHON_COMPILING_IN_PYPY
+#else
+        if (self->exc_traceback) {
+            PyThreadState *tstate = PyThreadState_GET();
+            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
+            PyFrameObject *f = tb->tb_frame;
+            Py_XINCREF(tstate->frame);
+            assert(f->f_back == NULL);
+            f->f_back = tstate->frame;
+        }
+#endif
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
+                            &self->exc_traceback);
+    } else {
+        __Pyx_Generator_ExceptionClear(self);
+    }
+    self->is_running = 1;
+    retval = self->body((PyObject *) self, value);
+    self->is_running = 0;
+    if (retval) {
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
+                            &self->exc_traceback);
+#if CYTHON_COMPILING_IN_PYPY
+#else
+        if (self->exc_traceback) {
+            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
+            PyFrameObject *f = tb->tb_frame;
+            Py_CLEAR(f->f_back);
+        }
+#endif
+    } else {
+        __Pyx_Generator_ExceptionClear(self);
+    }
+    return retval;
+}
+static CYTHON_INLINE
+PyObject *__Pyx_Generator_FinishDelegation(__pyx_GeneratorObject *gen) {
+    PyObject *ret;
+    PyObject *val = NULL;
+    __Pyx_Generator_Undelegate(gen);
+    __Pyx_PyGen_FetchStopIterationValue(&val);
+    ret = __Pyx_Generator_SendEx(gen, val);
+    Py_XDECREF(val);
+    return ret;
+}
+static PyObject *__Pyx_Generator_Next(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
+    PyObject *yf = gen->yieldfrom;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        gen->is_running = 1;
+        ret = Py_TYPE(yf)->tp_iternext(yf);
+        gen->is_running = 0;
+        if (likely(ret)) {
+            return ret;
+        }
+        return __Pyx_Generator_FinishDelegation(gen);
+    }
+    return __Pyx_Generator_SendEx(gen, Py_None);
+}
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
+    PyObject *yf = gen->yieldfrom;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        gen->is_running = 1;
+        if (__Pyx_Generator_CheckExact(yf)) {
+            ret = __Pyx_Generator_Send(yf, value);
+        } else {
+            if (value == Py_None)
+                ret = PyIter_Next(yf);
+            else
+                ret = __Pyx_PyObject_CallMethod1(yf, __pyx_n_s_send, value);
+        }
+        gen->is_running = 0;
+        if (likely(ret)) {
+            return ret;
+        }
+        return __Pyx_Generator_FinishDelegation(gen);
+    }
+    return __Pyx_Generator_SendEx(gen, value);
+}
+static int __Pyx_Generator_CloseIter(__pyx_GeneratorObject *gen, PyObject *yf) {
+    PyObject *retval = NULL;
+    int err = 0;
+    if (__Pyx_Generator_CheckExact(yf)) {
+        retval = __Pyx_Generator_Close(yf);
+        if (!retval)
+            return -1;
+    } else {
+        PyObject *meth;
+        gen->is_running = 1;
+        meth = PyObject_GetAttr(yf, __pyx_n_s_close);
+        if (unlikely(!meth)) {
+            if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
+                PyErr_WriteUnraisable(yf);
+            }
+            PyErr_Clear();
+        } else {
+            retval = PyObject_CallFunction(meth, NULL);
+            Py_DECREF(meth);
+            if (!retval)
+                err = -1;
+        }
+        gen->is_running = 0;
+    }
+    Py_XDECREF(retval);
+    return err;
+}
+static PyObject *__Pyx_Generator_Close(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject *retval, *raised_exception;
+    PyObject *yf = gen->yieldfrom;
+    int err = 0;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        Py_INCREF(yf);
+        err = __Pyx_Generator_CloseIter(gen, yf);
+        __Pyx_Generator_Undelegate(gen);
+        Py_DECREF(yf);
+    }
+    if (err == 0)
+        PyErr_SetNone(PyExc_GeneratorExit);
+    retval = __Pyx_Generator_SendEx(gen, NULL);
+    if (retval) {
+        Py_DECREF(retval);
+        PyErr_SetString(PyExc_RuntimeError,
+                        "generator ignored GeneratorExit");
+        return NULL;
+    }
+    raised_exception = PyErr_Occurred();
+    if (!raised_exception
+        || raised_exception == PyExc_StopIteration
+        || raised_exception == PyExc_GeneratorExit
+        || PyErr_GivenExceptionMatches(raised_exception, PyExc_GeneratorExit)
+        || PyErr_GivenExceptionMatches(raised_exception, PyExc_StopIteration))
+    {
+        if (raised_exception) PyErr_Clear();
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+    return NULL;
+}
+static PyObject *__Pyx_Generator_Throw(PyObject *self, PyObject *args) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject *typ;
+    PyObject *tb = NULL;
+    PyObject *val = NULL;
+    PyObject *yf = gen->yieldfrom;
+    if (!PyArg_UnpackTuple(args, (char *)"throw", 1, 3, &typ, &val, &tb))
+        return NULL;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        Py_INCREF(yf);
+        if (PyErr_GivenExceptionMatches(typ, PyExc_GeneratorExit)) {
+            int err = __Pyx_Generator_CloseIter(gen, yf);
+            Py_DECREF(yf);
+            __Pyx_Generator_Undelegate(gen);
+            if (err < 0)
+                return __Pyx_Generator_SendEx(gen, NULL);
+            goto throw_here;
+        }
+        gen->is_running = 1;
+        if (__Pyx_Generator_CheckExact(yf)) {
+            ret = __Pyx_Generator_Throw(yf, args);
+        } else {
+            PyObject *meth = PyObject_GetAttr(yf, __pyx_n_s_throw);
+            if (unlikely(!meth)) {
+                Py_DECREF(yf);
+                if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
+                    gen->is_running = 0;
+                    return NULL;
+                }
+                PyErr_Clear();
+                __Pyx_Generator_Undelegate(gen);
+                gen->is_running = 0;
+                goto throw_here;
+            }
+            ret = PyObject_CallObject(meth, args);
+            Py_DECREF(meth);
+        }
+        gen->is_running = 0;
+        Py_DECREF(yf);
+        if (!ret) {
+            ret = __Pyx_Generator_FinishDelegation(gen);
+        }
+        return ret;
+    }
+throw_here:
+    __Pyx_Raise(typ, val, tb, NULL);
+    return __Pyx_Generator_SendEx(gen, NULL);
+}
+static int __Pyx_Generator_traverse(PyObject *self, visitproc visit, void *arg) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    Py_VISIT(gen->closure);
+    Py_VISIT(gen->classobj);
+    Py_VISIT(gen->yieldfrom);
+    Py_VISIT(gen->exc_type);
+    Py_VISIT(gen->exc_value);
+    Py_VISIT(gen->exc_traceback);
+    return 0;
+}
+static int __Pyx_Generator_clear(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    Py_CLEAR(gen->closure);
+    Py_CLEAR(gen->classobj);
+    Py_CLEAR(gen->yieldfrom);
+    Py_CLEAR(gen->exc_type);
+    Py_CLEAR(gen->exc_value);
+    Py_CLEAR(gen->exc_traceback);
+    Py_CLEAR(gen->gi_name);
+    Py_CLEAR(gen->gi_qualname);
+    return 0;
+}
+static void __Pyx_Generator_dealloc(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject_GC_UnTrack(gen);
+    if (gen->gi_weakreflist != NULL)
+        PyObject_ClearWeakRefs(self);
+    if (gen->resume_label > 0) {
+        PyObject_GC_Track(self);
+#if PY_VERSION_HEX >= 0x030400a1
+        if (PyObject_CallFinalizerFromDealloc(self))
+#else
+        Py_TYPE(gen)->tp_del(self);
+        if (self->ob_refcnt > 0)
+#endif
+        {
+            return;
+        }
+        PyObject_GC_UnTrack(self);
+    }
+    __Pyx_Generator_clear(self);
+    PyObject_GC_Del(gen);
+}
+static void __Pyx_Generator_del(PyObject *self) {
+    PyObject *res;
+    PyObject *error_type, *error_value, *error_traceback;
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    if (gen->resume_label <= 0)
+        return ;
+#if PY_VERSION_HEX < 0x030400a1
+    assert(self->ob_refcnt == 0);
+    self->ob_refcnt = 1;
+#endif
+    __Pyx_ErrFetch(&error_type, &error_value, &error_traceback);
+    res = __Pyx_Generator_Close(self);
+    if (res == NULL)
+        PyErr_WriteUnraisable(self);
+    else
+        Py_DECREF(res);
+    __Pyx_ErrRestore(error_type, error_value, error_traceback);
+#if PY_VERSION_HEX < 0x030400a1
+    assert(self->ob_refcnt > 0);
+    if (--self->ob_refcnt == 0) {
+        return;
+    }
+    {
+        Py_ssize_t refcnt = self->ob_refcnt;
+        _Py_NewReference(self);
+        self->ob_refcnt = refcnt;
+    }
+#if CYTHON_COMPILING_IN_CPYTHON
+    assert(PyType_IS_GC(self->ob_type) &&
+           _Py_AS_GC(self)->gc.gc_refs != _PyGC_REFS_UNTRACKED);
+    _Py_DEC_REFTOTAL;
+#endif
+#ifdef COUNT_ALLOCS
+    --Py_TYPE(self)->tp_frees;
+    --Py_TYPE(self)->tp_allocs;
+#endif
+#endif
+}
+static PyObject *
+__Pyx_Generator_get_name(__pyx_GeneratorObject *self)
+{
+    Py_INCREF(self->gi_name);
+    return self->gi_name;
+}
+static int
+__Pyx_Generator_set_name(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = self->gi_name;
+    Py_INCREF(value);
+    self->gi_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_Generator_get_qualname(__pyx_GeneratorObject *self)
+{
+    Py_INCREF(self->gi_qualname);
+    return self->gi_qualname;
+}
+static int
+__Pyx_Generator_set_qualname(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = self->gi_qualname;
+    Py_INCREF(value);
+    self->gi_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyGetSetDef __pyx_Generator_getsets[] = {
+    {(char *) "__name__", (getter)__Pyx_Generator_get_name, (setter)__Pyx_Generator_set_name,
+     (char*) PyDoc_STR("name of the generator"), 0},
+    {(char *) "__qualname__", (getter)__Pyx_Generator_get_qualname, (setter)__Pyx_Generator_set_qualname,
+     (char*) PyDoc_STR("qualified name of the generator"), 0},
+    {0, 0, 0, 0, 0}
+};
+static PyMemberDef __pyx_Generator_memberlist[] = {
+    {(char *) "gi_running", T_BOOL, offsetof(__pyx_GeneratorObject, is_running), READONLY, NULL},
+    {0, 0, 0, 0, 0}
+};
+static PyMethodDef __pyx_Generator_methods[] = {
+    {"send", (PyCFunction) __Pyx_Generator_Send, METH_O, 0},
+    {"throw", (PyCFunction) __Pyx_Generator_Throw, METH_VARARGS, 0},
+    {"close", (PyCFunction) __Pyx_Generator_Close, METH_NOARGS, 0},
+    {0, 0, 0, 0}
+};
+static PyTypeObject __pyx_GeneratorType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "generator",
+    sizeof(__pyx_GeneratorObject),
+    0,
+    (destructor) __Pyx_Generator_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_HAVE_FINALIZE,
+    0,
+    (traverseproc) __Pyx_Generator_traverse,
+    0,
+    0,
+    offsetof(__pyx_GeneratorObject, gi_weakreflist),
+    0,
+    (iternextfunc) __Pyx_Generator_Next,
+    __pyx_Generator_methods,
+    __pyx_Generator_memberlist,
+    __pyx_Generator_getsets,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#else
+    __Pyx_Generator_del,
+#endif
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    __Pyx_Generator_del,
+#endif
+};
+static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
+                                                  PyObject *closure, PyObject *name, PyObject *qualname) {
+    __pyx_GeneratorObject *gen =
+        PyObject_GC_New(__pyx_GeneratorObject, &__pyx_GeneratorType_type);
+    if (gen == NULL)
+        return NULL;
+    gen->body = body;
+    gen->closure = closure;
+    Py_XINCREF(closure);
+    gen->is_running = 0;
+    gen->resume_label = 0;
+    gen->classobj = NULL;
+    gen->yieldfrom = NULL;
+    gen->exc_type = NULL;
+    gen->exc_value = NULL;
+    gen->exc_traceback = NULL;
+    gen->gi_weakreflist = NULL;
+    Py_XINCREF(qualname);
+    gen->gi_qualname = qualname;
+    Py_XINCREF(name);
+    gen->gi_name = name;
+    PyObject_GC_Track(gen);
+    return gen;
+}
+static int __pyx_Generator_init(void) {
+    __pyx_GeneratorType_type.tp_getattro = PyObject_GenericGetAttr;
+    __pyx_GeneratorType_type.tp_iter = PyObject_SelfIter;
+    __pyx_GeneratorType = __Pyx_FetchCommonType(&__pyx_GeneratorType_type);
+    if (__pyx_GeneratorType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+#if PY_VERSION_HEX < 0x03030000
+        char* defenc_c;
+        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+        if (!defenc) return NULL;
+        defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        {
+            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+            char* c;
+            for (c = defenc_c; c < end; c++) {
+                if ((unsigned char) (*c) >= 128) {
+                    PyUnicode_AsASCIIString(o);
+                    return NULL;
+                }
+            }
+        }
+#endif
+        *length = PyBytes_GET_SIZE(defenc);
+        return defenc_c;
+#else
+        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        if (PyUnicode_IS_ASCII(o)) {
+            *length = PyUnicode_GET_LENGTH(o);
+            return PyUnicode_AsUTF8(o);
+        } else {
+            PyUnicode_AsASCIIString(o);
+            return NULL;
+        }
+#else
+        return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+#endif
+    } else
+#endif
+#if !CYTHON_COMPILING_IN_PYPY
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+  PyNumberMethods *m;
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (PyInt_Check(x) || PyLong_Check(x))
+#else
+  if (PyLong_Check(x))
+#endif
+    return Py_INCREF(x), x;
+  m = Py_TYPE(x)->tp_as_number;
+#if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = PyNumber_Long(x);
+  }
+#else
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Long(x);
+  }
+#endif
+  if (res) {
+#if PY_MAJOR_VERSION < 3
+    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+#else
+    if (!PyLong_Check(res)) {
+#endif
+      PyErr_Format(PyExc_TypeError,
+                   "__%.4s__ returned non-%.4s (type %.200s)",
+                   name, name, Py_TYPE(res)->tp_name);
+      Py_DECREF(res);
+      return NULL;
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b)))
+      return PyInt_AS_LONG(b);
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+     #if CYTHON_USE_PYLONG_INTERNALS
+       switch (Py_SIZE(b)) {
+       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
+       case  0: return 0;
+       case  1: return ((PyLongObject*)b)->ob_digit[0];
+       }
+     #endif
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/fiona/_geometry.cpp b/fiona/_geometry.cpp
new file mode 100644
index 0000000..c0613e4
--- /dev/null
+++ b/fiona/_geometry.cpp
@@ -0,0 +1,14460 @@
+/* Generated by Cython 0.21 */
+
+#define PY_SSIZE_T_CLEAN
+#ifndef CYTHON_USE_PYLONG_INTERNALS
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#else
+#include "pyconfig.h"
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 1
+#else
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#endif
+#endif
+#endif
+#include "Python.h"
+#ifndef Py_PYTHON_H
+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03020000)
+    #error Cython requires Python 2.6+ or Python 3.2+.
+#else
+#define CYTHON_ABI "0_21"
+#include <stddef.h>
+#ifndef offsetof
+#define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+#endif
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+#ifndef DL_IMPORT
+  #define DL_IMPORT(t) t
+#endif
+#ifndef DL_EXPORT
+  #define DL_EXPORT(t) t
+#endif
+#ifndef PY_LONG_LONG
+  #define PY_LONG_LONG LONG_LONG
+#endif
+#ifndef Py_HUGE_VAL
+  #define Py_HUGE_VAL HUGE_VAL
+#endif
+#ifdef PYPY_VERSION
+#define CYTHON_COMPILING_IN_PYPY 1
+#define CYTHON_COMPILING_IN_CPYTHON 0
+#else
+#define CYTHON_COMPILING_IN_PYPY 0
+#define CYTHON_COMPILING_IN_CPYTHON 1
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600
+#define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_CHECKTYPES 0
+  #define Py_TPFLAGS_HAVE_INDEX 0
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+#if PY_VERSION_HEX < 0x030400a1 && !defined(Py_TPFLAGS_HAVE_FINALIZE)
+  #define Py_TPFLAGS_HAVE_FINALIZE 0
+#endif
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
+                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+#else
+  #define CYTHON_PEP393_ENABLED 0
+  #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+#endif
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
+#else
+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ? \
+      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
+   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
+   a quiet NaN. */
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#ifdef __cplusplus
+template<typename T>
+void __Pyx_call_destructor(T* x) {
+    x->~T();
+}
+#endif
+
+
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+#define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#define __PYX_HAVE__fiona___geometry
+#define __PYX_HAVE_API__fiona___geometry
+#include "cpl_conv.h"
+#include "cpl_string.h"
+#include "ogr_core.h"
+#include "ogr_srs_api.h"
+#include "ogr_api.h"
+#include "ogr_geometry.h"
+#include "ogr_spatialref.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#ifdef PYREX_WITHOUT_ASSERTIONS
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
+    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
+    (sizeof(type) > sizeof(Py_ssize_t) &&               \
+          likely(v < (type)PY_SSIZE_T_MAX ||            \
+                 v == (type)PY_SSIZE_T_MAX)  &&         \
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
+                                v == (type)PY_SSIZE_T_MIN)))  ||  \
+    (sizeof(type) == sizeof(Py_ssize_t) &&              \
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
+#if PY_MAJOR_VERSION < 3
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#else
+#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
+#endif
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+
+static PyObject *__pyx_m;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "fiona/_geometry.pyx",
+};
+
+/* "ograpi.pxd":15
+ *     void    CSLDestroy (char **list)
+ * 
+ * ctypedef int OGRErr             # <<<<<<<<<<<<<<
+ * ctypedef struct OGREnvelope:
+ *     double MinX
+ */
+typedef int __pyx_t_5fiona_6ograpi_OGRErr;
+
+/*--- Type declarations ---*/
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder;
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder;
+struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr;
+struct __pyx_t_5fiona_6ograpi_OGREnvelope;
+typedef struct __pyx_t_5fiona_6ograpi_OGREnvelope __pyx_t_5fiona_6ograpi_OGREnvelope;
+
+/* "ograpi.pxd":16
+ * 
+ * ctypedef int OGRErr
+ * ctypedef struct OGREnvelope:             # <<<<<<<<<<<<<<
+ *     double MinX
+ *     double MaxX
+ */
+struct __pyx_t_5fiona_6ograpi_OGREnvelope {
+  double MinX;
+  double MaxX;
+  double MinY;
+  double MaxY;
+};
+
+/* "fiona/_geometry.pxd":2
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void *geom
+ *     cdef object code
+ */
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtab;
+  void *geom;
+  PyObject *code;
+  PyObject *geomtypename;
+  PyObject *ndims;
+};
+
+
+/* "fiona/_geometry.pxd":21
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void * _createOgrGeometry(self, int geom_type)
+ *     cdef _addPointToGeometry(self, void *cogr_geometry, object coordinate)
+ */
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtab;
+};
+
+
+/* "fiona/_geometry.pyx":53
+ * 
+ * # mapping of GeoJSON type names to OGR integer geometry types
+ * GEOJSON2OGR_GEOMETRY_TYPES = dict((v, k) for k, v in GEOMETRY_TYPES.iteritems())             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr {
+  PyObject_HEAD
+  PyObject *__pyx_v_k;
+  PyObject *__pyx_v_v;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
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+  int __pyx_t_3;
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+
+/* "fiona/_geometry.pyx":182
+ * 
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     """Builds Fiona (GeoJSON) geometries from an OGR geometry handle.
+ *     """
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder {
+  PyObject *(*_buildCoords)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildParts)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*build)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*build_wkb)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, PyObject *, int __pyx_skip_dispatch);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtabptr_5fiona_9_geometry_GeomBuilder;
+
+
+/* "fiona/_geometry.pyx":260
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     """Builds OGR geometries from Fiona geometries.
+ *     """
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder {
+  void *(*_createOgrGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, int);
+  PyObject *(*_addPointToGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, void *, PyObject *);
+  void *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*build)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtabptr_5fiona_9_geometry_OGRGeomBuilder;
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+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
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+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {                            \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_XDECREF(tmp);                              \
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+#define __Pyx_DECREF_SET(r, v) do {                             \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_DECREF(tmp);                               \
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+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
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+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro))
+        return tp->tp_getattro(obj, attr_name);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
+#endif
+    return PyObject_GetAttr(obj, attr_name);
+}
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+static CYTHON_INLINE int __Pyx_IterFinish(void);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
+#else
+#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL)
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
+static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name);
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected);
+
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void);
+
+static void __Pyx_UnpackTupleError(PyObject *, Py_ssize_t index);
+
+static CYTHON_INLINE int __Pyx_unpack_tuple2(PyObject* tuple, PyObject** value1, PyObject** value2,
+                                             int is_tuple, int has_known_size, int decref_tuple);
+
+static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* dict, int is_dict, PyObject* method_name,
+                                                   Py_ssize_t* p_orig_length, int* p_is_dict);
+static CYTHON_INLINE int __Pyx_dict_iter_next(PyObject* dict_or_iter, Py_ssize_t orig_length, Py_ssize_t* ppos,
+                                              PyObject** pkey, PyObject** pvalue, PyObject** pitem, int is_dict);
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name);
+
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
+    const char* function_name);
+
+#include <string.h>
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
+
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyString_Equals __Pyx_PyUnicode_Equals
+#else
+#define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
+    Py_ssize_t len = Py_SIZE(list);
+    if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
+        Py_INCREF(x);
+        PyList_SET_ITEM(list, len, x);
+        Py_SIZE(list) = len+1;
+        return 0;
+    }
+    return PyList_Append(list, x);
+}
+#else
+#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
+#endif
+
+#if PY_MAJOR_VERSION < 3
+#define __Pyx_PyString_Join __Pyx_PyBytes_Join
+#define __Pyx_PyBaseString_Join(s, v) (PyUnicode_CheckExact(s) ? PyUnicode_Join(s, v) : __Pyx_PyBytes_Join(s, v))
+#else
+#define __Pyx_PyString_Join PyUnicode_Join
+#define __Pyx_PyBaseString_Join PyUnicode_Join
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+    #if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyBytes_Join _PyString_Join
+    #else
+    #define __Pyx_PyBytes_Join _PyBytes_Join
+    #endif
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values);
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb);
+
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename,
+                                  int full_traceback);
+
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) : \
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
+
+#define __Pyx_SetItemInt(o, i, v, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_SetItemInt_Fast(o, (Py_ssize_t)i, v, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list assignment index out of range"), -1) : \
+               __Pyx_SetItemInt_Generic(o, to_py_func(i), v)))
+static CYTHON_INLINE int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v);
+static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v,
+                                               int is_list, int wraparound, int boundscheck);
+
+#define __Pyx_GetItemInt_ByteArray(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_ByteArray_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "bytearray index out of range"), -1))
+static CYTHON_INLINE int __Pyx_GetItemInt_ByteArray_Fast(PyObject* string, Py_ssize_t i,
+                                                         int wraparound, int boundscheck);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyObject_DelAttrStr(o,n) __Pyx_PyObject_SetAttrStr(o,n,NULL)
+static CYTHON_INLINE int __Pyx_PyObject_SetAttrStr(PyObject* obj, PyObject* attr_name, PyObject* value) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_setattro))
+        return tp->tp_setattro(obj, attr_name, value);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_setattr))
+        return tp->tp_setattr(obj, PyString_AS_STRING(attr_name), value);
+#endif
+    return PyObject_SetAttr(obj, attr_name, value);
+}
+#else
+#define __Pyx_PyObject_DelAttrStr(o,n)   PyObject_DelAttr(o,n)
+#define __Pyx_PyObject_SetAttrStr(o,n,v) PyObject_SetAttr(o,n,v)
+#endif
+
+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *, PyObject *);
+
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
+    Py_ssize_t len = Py_SIZE(list);
+    if (likely(L->allocated > len)) {
+        Py_INCREF(x);
+        PyList_SET_ITEM(list, len, x);
+        Py_SIZE(list) = len+1;
+        return 0;
+    }
+    return PyList_Append(list, x);
+}
+#else
+#define __Pyx_ListComp_Append(L,x) PyList_Append(L,x)
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetSlice(
+        PyObject* obj, Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** py_start, PyObject** py_stop, PyObject** py_slice,
+        int has_cstart, int has_cstop, int wraparound);
+
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname);
+
+static int __Pyx_SetVtable(PyObject *dict, void *vtable);
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases);
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
+
+#define __Pyx_CyFunction_USED 1
+#include <structmember.h>
+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CyFunction_GetClosure(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#define __Pyx_CyFunction_GetClassObj(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_classobj)
+#define __Pyx_CyFunction_Defaults(type, f) \
+    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
+#define __Pyx_CyFunction_SetDefaultsGetter(f, g) \
+    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
+typedef struct {
+    PyCFunctionObject func;
+#if PY_VERSION_HEX < 0x030500A0
+    PyObject *func_weakreflist;
+#endif
+    PyObject *func_dict;
+    PyObject *func_name;
+    PyObject *func_qualname;
+    PyObject *func_doc;
+    PyObject *func_globals;
+    PyObject *func_code;
+    PyObject *func_closure;
+    PyObject *func_classobj;
+    void *defaults;
+    int defaults_pyobjects;
+    int flags;
+    PyObject *defaults_tuple;
+    PyObject *defaults_kwdict;
+    PyObject *(*defaults_getter)(PyObject *);
+    PyObject *func_annotations;
+} __pyx_CyFunctionObject;
+static PyTypeObject *__pyx_CyFunctionType = 0;
+#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code) \
+    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *self,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
+                                                         size_t size,
+                                                         int pyobjects);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
+                                                            PyObject *tuple);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
+                                                             PyObject *dict);
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
+                                                              PyObject *dict);
+static int __Pyx_CyFunction_init(void);
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name, PyObject *qualname,
+                                           PyObject *mkw, PyObject *modname, PyObject *doc);
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases, PyObject *dict,
+                                      PyObject *mkw, int calculate_metaclass, int allow_py2_metaclass);
+
+typedef struct {
+    int code_line;
+    PyCodeObject* code_object;
+} __Pyx_CodeObjectCacheEntry;
+struct __Pyx_CodeObjectCache {
+    int count;
+    int max_count;
+    __Pyx_CodeObjectCacheEntry* entries;
+};
+static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
+static PyCodeObject *__pyx_find_code_object(int code_line);
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
+
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename);
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
+
+#ifndef __Pyx_CppExn2PyErr
+#include <new>
+#include <typeinfo>
+#include <stdexcept>
+#include <ios>
+static void __Pyx_CppExn2PyErr() {
+  try {
+    if (PyErr_Occurred())
+      ; // let the latest Python exn pass through and ignore the current one
+    else
+      throw;
+  } catch (const std::bad_alloc& exn) {
+    PyErr_SetString(PyExc_MemoryError, exn.what());
+  } catch (const std::bad_cast& exn) {
+    PyErr_SetString(PyExc_TypeError, exn.what());
+  } catch (const std::domain_error& exn) {
+    PyErr_SetString(PyExc_ValueError, exn.what());
+  } catch (const std::invalid_argument& exn) {
+    PyErr_SetString(PyExc_ValueError, exn.what());
+  } catch (const std::ios_base::failure& exn) {
+    PyErr_SetString(PyExc_IOError, exn.what());
+  } catch (const std::out_of_range& exn) {
+    PyErr_SetString(PyExc_IndexError, exn.what());
+  } catch (const std::overflow_error& exn) {
+    PyErr_SetString(PyExc_OverflowError, exn.what());
+  } catch (const std::range_error& exn) {
+    PyErr_SetString(PyExc_ArithmeticError, exn.what());
+  } catch (const std::underflow_error& exn) {
+    PyErr_SetString(PyExc_ArithmeticError, exn.what());
+  } catch (const std::exception& exn) {
+    PyErr_SetString(PyExc_RuntimeError, exn.what());
+  }
+  catch (...)
+  {
+    PyErr_SetString(PyExc_RuntimeError, "Unknown exception");
+  }
+}
+#endif
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb);
+
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg);
+
+#define __Pyx_Generator_USED
+#include <structmember.h>
+#include <frameobject.h>
+typedef PyObject *(*__pyx_generator_body_t)(PyObject *, PyObject *);
+typedef struct {
+    PyObject_HEAD
+    __pyx_generator_body_t body;
+    PyObject *closure;
+    PyObject *exc_type;
+    PyObject *exc_value;
+    PyObject *exc_traceback;
+    PyObject *gi_weakreflist;
+    PyObject *classobj;
+    PyObject *yieldfrom;
+    PyObject *gi_name;
+    PyObject *gi_qualname;
+    int resume_label;
+    char is_running;
+} __pyx_GeneratorObject;
+static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
+                                                  PyObject *closure, PyObject *name, PyObject *qualname);
+static int __pyx_Generator_init(void);
+static int __Pyx_Generator_clear(PyObject* self);
+#if 1 || PY_VERSION_HEX < 0x030300B0
+static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue);
+#else
+#define __Pyx_PyGen_FetchStopIterationValue(pvalue) PyGen_FetchStopIterationValue(pvalue)
+#endif
+
+static int __Pyx_check_binary_version(void);
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
+
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildCoords(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, void *__pyx_v_geom); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildLinearRing(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildParts(CYTHON_UNUSED struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, void *__pyx_v_geom); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildMultiPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder__buildGeometryCollection(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder_build(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, void *__pyx_v_geom); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_11GeomBuilder_build_wkb(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, PyObject *__pyx_v_wkb, int __pyx_skip_dispatch); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__createOgrGeometry(CYTHON_UNUSED struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, int __pyx_v_geom_type); /* proto*/
+static PyObject *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__addPointToGeometry(CYTHON_UNUSED struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, void *__pyx_v_cogr_geometry, PyObject *__pyx_v_coordinate); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildPoint(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildLineString(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildLinearRing(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildPolygon(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildMultiPoint(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildMultiLineString(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildMultiPolygon(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder__buildGeometryCollection(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_coordinates); /* proto*/
+static void *__pyx_f_5fiona_9_geometry_14OGRGeomBuilder_build(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *__pyx_v_self, PyObject *__pyx_v_geometry); /* proto*/
+
+/* Module declarations from 'fiona' */
+
+/* Module declarations from 'fiona.ograpi' */
+
+/* Module declarations from 'fiona._geometry' */
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_GeomBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_OGRGeomBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry___pyx_scope_struct__genexpr = 0;
+static void *__pyx_f_5fiona_9_geometry__osr_from_crs(PyObject *); /*proto*/
+static void *__pyx_f_5fiona_9_geometry__createOgrGeomFromWKB(PyObject *); /*proto*/
+static PyObject *__pyx_f_5fiona_9_geometry__deleteOgrGeom(void *); /*proto*/
+#define __Pyx_MODULE_NAME "fiona._geometry"
+int __pyx_module_is_main_fiona___geometry = 0;
+
+/* Implementation of 'fiona._geometry' */
+static PyObject *__pyx_builtin_object;
+static PyObject *__pyx_builtin_range;
+static PyObject *__pyx_builtin_ValueError;
+static PyObject *__pyx_builtin_Exception;
+static PyObject *__pyx_builtin_round;
+static PyObject *__pyx_builtin_zip;
+static PyObject *__pyx_pf_5fiona_9_geometry_6genexpr(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11NullHandler_emit(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v_record); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry__transform(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_src_crs, PyObject *__pyx_v_dst_crs, PyObject *__pyx_v_xs, PyObject *__pyx_v_ys); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_getNumDimsPoint(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_2getNumDimsLineString(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_4getNumDimsLinearRing(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_6getNumDimsPolygon(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_8getNumDimsMultiPoint(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_10getNumDimsMultiLineString(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_12getNumDimsMultiPolygon(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_14getNumDimsGeometryCollection(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_17DimensionsHandler_16getNumDims(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_self, PyObject *__pyx_v_geom_type, PyObject *__pyx_v_coordinates); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder__buildPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_2_buildLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_4_buildLinearRing(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_6_buildPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_8_buildMultiPoint(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_10_buildMultiLineString(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_12_buildMultiPolygon(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_14_buildGeometryCollection(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_11GeomBuilder_16build_wkb(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *__pyx_v_self, PyObject *__pyx_v_wkb); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_2geometryRT(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_geometry); /* proto */
+static PyObject *__pyx_pf_5fiona_9_geometry_4_transform_geom(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_src_crs, PyObject *__pyx_v_dst_crs, PyObject *__pyx_v_geom, PyObject *__pyx_v_antimeridian_cutting, PyObject *__pyx_v_antimeridian_offset, PyObject *__pyx_v_precision); /* proto */
+static PyObject *__pyx_tp_new_5fiona_9_geometry_GeomBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_9_geometry_OGRGeomBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_9_geometry___pyx_scope_struct__genexpr(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static char __pyx_k_g[] = "g";
+static char __pyx_k_i[] = "i";
+static char __pyx_k_n[] = "n";
+static char __pyx_k_s[] = "+%s";
+static char __pyx_k_v[] = "v";
+static char __pyx_k_x[] = "x";
+static char __pyx_k_y[] = "y";
+static char __pyx_k__2[] = ":";
+static char __pyx_k__4[] = " ";
+static char __pyx_k_xp[] = "xp";
+static char __pyx_k_xs[] = "xs";
+static char __pyx_k_yp[] = "yp";
+static char __pyx_k_ys[] = "ys";
+static char __pyx_k_YES[] = "YES";
+static char __pyx_k_doc[] = "__doc__";
+static char __pyx_k_dst[] = "dst";
+static char __pyx_k_get[] = "get";
+static char __pyx_k_log[] = "log";
+static char __pyx_k_res[] = "res";
+static char __pyx_k_s_s[] = "+%s=%s";
+static char __pyx_k_src[] = "src";
+static char __pyx_k_zip[] = "zip";
+static char __pyx_k_EPSG[] = "EPSG";
+static char __pyx_k_None[] = "None";
+static char __pyx_k_args[] = "args";
+static char __pyx_k_emit[] = "emit";
+static char __pyx_k_geom[] = "geom";
+static char __pyx_k_init[] = "init";
+static char __pyx_k_join[] = "join";
+static char __pyx_k_main[] = "__main__";
+static char __pyx_k_part[] = "part";
+static char __pyx_k_ring[] = "ring";
+static char __pyx_k_self[] = "self";
+static char __pyx_k_send[] = "send";
+static char __pyx_k_test[] = "__test__";
+static char __pyx_k_type[] = "type";
+static char __pyx_k_Fiona[] = "Fiona";
+static char __pyx_k_Point[] = "Point";
+static char __pyx_k_build[] = "_build";
+static char __pyx_k_close[] = "close";
+static char __pyx_k_debug[] = "debug";
+static char __pyx_k_first[] = "first";
+static char __pyx_k_items[] = "items";
+static char __pyx_k_key_c[] = "key_c";
+static char __pyx_k_parts[] = "parts";
+static char __pyx_k_piece[] = "piece";
+static char __pyx_k_range[] = "range";
+static char __pyx_k_round[] = "round";
+static char __pyx_k_split[] = "split";
+static char __pyx_k_throw[] = "throw";
+static char __pyx_k_upper[] = "upper";
+static char __pyx_k_utf_8[] = "utf-8";
+static char __pyx_k_val_c[] = "val_c";
+static char __pyx_k_encode[] = "encode";
+static char __pyx_k_import[] = "__import__";
+static char __pyx_k_module[] = "__module__";
+static char __pyx_k_object[] = "object";
+static char __pyx_k_proj_c[] = "proj_c";
+static char __pyx_k_record[] = "record";
+static char __pyx_k_res_xs[] = "res_xs";
+static char __pyx_k_res_ys[] = "res_ys";
+static char __pyx_k_result[] = "result";
+static char __pyx_k_wktext[] = "wktext";
+static char __pyx_k_Handler[] = "Handler";
+static char __pyx_k_Polygon[] = "Polygon";
+static char __pyx_k_Unknown[] = "Unknown";
+static char __pyx_k_dst_crs[] = "dst_crs";
+static char __pyx_k_factory[] = "factory";
+static char __pyx_k_genexpr[] = "genexpr";
+static char __pyx_k_logging[] = "logging";
+static char __pyx_k_no_defs[] = "no_defs";
+static char __pyx_k_options[] = "options";
+static char __pyx_k_prepare[] = "__prepare__";
+static char __pyx_k_src_crs[] = "src_crs";
+static char __pyx_k_3D_Point[] = "3D Point";
+static char __pyx_k_geometry[] = "geometry";
+static char __pyx_k_qualname[] = "__qualname__";
+static char __pyx_k_typename[] = "typename";
+static char __pyx_k_Exception[] = "Exception";
+static char __pyx_k_Null_geom[] = "Null geom";
+static char __pyx_k_build_wkb[] = "build_wkb";
+static char __pyx_k_geom_type[] = "geom_type";
+static char __pyx_k_getLogger[] = "getLogger";
+static char __pyx_k_iteritems[] = "iteritems";
+static char __pyx_k_metaclass[] = "__metaclass__";
+static char __pyx_k_precision[] = "precision";
+static char __pyx_k_transform[] = "transform";
+static char __pyx_k_3D_Polygon[] = "3D Polygon";
+static char __pyx_k_Built_line[] = "Built line";
+static char __pyx_k_Built_part[] = "Built part";
+static char __pyx_k_Built_ring[] = "Built ring";
+static char __pyx_k_Geometry_s[] = "Geometry: %s";
+static char __pyx_k_LineString[] = "LineString";
+static char __pyx_k_LinearRing[] = "LinearRing";
+static char __pyx_k_MultiPoint[] = "MultiPoint";
+static char __pyx_k_ValueError[] = "ValueError";
+static char __pyx_k_addHandler[] = "addHandler";
+static char __pyx_k_buildPoint[] = "_buildPoint";
+static char __pyx_k_geometries[] = "geometries";
+static char __pyx_k_geometryRT[] = "geometryRT";
+static char __pyx_k_getNumDims[] = "getNumDims";
+static char __pyx_k_new_coords[] = "new_coords";
+static char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
+static char __pyx_k_NullHandler[] = "NullHandler";
+static char __pyx_k_coordinates[] = "coordinates";
+static char __pyx_k_transform_2[] = "_transform";
+static char __pyx_k_Added_line_s[] = "Added line %s";
+static char __pyx_k_Added_part_s[] = "Added part %s";
+static char __pyx_k_Added_ring_s[] = "Added ring %s";
+static char __pyx_k_Closing_ring[] = "Closing ring";
+static char __pyx_k_MultiPolygon[] = "MultiPolygon";
+static char __pyx_k_WRAPDATELINE[] = "WRAPDATELINE";
+static char __pyx_k_buildPolygon[] = "_buildPolygon";
+static char __pyx_k_dst_ogr_geom[] = "dst_ogr_geom";
+static char __pyx_k_inner_coords[] = "inner_coords";
+static char __pyx_k_src_ogr_geom[] = "src_ogr_geom";
+static char __pyx_k_3D_LineString[] = "3D LineString";
+static char __pyx_k_3D_MultiPoint[] = "3D MultiPoint";
+static char __pyx_k_Added_point_s[] = "Added point %s";
+static char __pyx_k_Adding_line_s[] = "Adding line %s";
+static char __pyx_k_Adding_part_s[] = "Adding part %s";
+static char __pyx_k_Adding_ring_s[] = "Adding ring %s";
+static char __pyx_k_Built_polygon[] = "Built polygon";
+static char __pyx_k_cogr_geometry[] = "cogr_geometry";
+static char __pyx_k_Adding_point_s[] = "Adding point %s";
+static char __pyx_k_DATELINEOFFSET[] = "DATELINEOFFSET";
+static char __pyx_k_GEOMETRY_TYPES[] = "GEOMETRY_TYPES";
+static char __pyx_k_transform_geom[] = "_transform_geom";
+static char __pyx_k_3D_MultiPolygon[] = "3D MultiPolygon";
+static char __pyx_k_Added_polygon_s[] = "Added polygon %s";
+static char __pyx_k_MultiLineString[] = "MultiLineString";
+static char __pyx_k_buildLineString[] = "_buildLineString";
+static char __pyx_k_buildLinearRing[] = "_buildLinearRing";
+static char __pyx_k_buildMultiPoint[] = "_buildMultiPoint";
+static char __pyx_k_fiona__geometry[] = "fiona._geometry";
+static char __pyx_k_getNumDimsPoint[] = "getNumDimsPoint";
+static char __pyx_k_Adding_polygon_s[] = "Adding polygon %s";
+static char __pyx_k_NullHandler_emit[] = "NullHandler.emit";
+static char __pyx_k_DimensionsHandler[] = "DimensionsHandler";
+static char __pyx_k_buildMultiPolygon[] = "_buildMultiPolygon";
+static char __pyx_k_getNumDimsPolygon[] = "getNumDimsPolygon";
+static char __pyx_k_3D_MultiLineString[] = "3D MultiLineString";
+static char __pyx_k_GeometryCollection[] = "GeometryCollection";
+static char __pyx_k_antimeridian_offset[] = "antimeridian_offset";
+static char __pyx_k_antimeridian_cutting[] = "antimeridian_cutting";
+static char __pyx_k_buildMultiLineString[] = "_buildMultiLineString";
+static char __pyx_k_getNumDimsLineString[] = "getNumDimsLineString";
+static char __pyx_k_getNumDimsLinearRing[] = "getNumDimsLinearRing";
+static char __pyx_k_getNumDimsMultiPoint[] = "getNumDimsMultiPoint";
+static char __pyx_k_3D_GeometryCollection[] = "3D GeometryCollection";
+static char __pyx_k_getNumDimsMultiPolygon[] = "getNumDimsMultiPolygon";
+static char __pyx_k_PROJ_4_to_be_imported_r[] = "PROJ.4 to be imported: %r";
+static char __pyx_k_buildGeometryCollection[] = "_buildGeometryCollection";
+static char __pyx_k_getNumDimsMultiLineString[] = "getNumDimsMultiLineString";
+static char __pyx_k_GEOJSON2OGR_GEOMETRY_TYPES[] = "GEOJSON2OGR_GEOMETRY_TYPES";
+static char __pyx_k_Unsupported_geometry_type_s[] = "Unsupported geometry type %s";
+static char __pyx_k_DimensionsHandler_getNumDims[] = "DimensionsHandler.getNumDims";
+static char __pyx_k_getNumDimsGeometryCollection[] = "getNumDimsGeometryCollection";
+static char __pyx_k_Users_sean_code_Fiona_fiona__ge[] = "/Users/sean/code/Fiona/fiona/_geometry.pyx";
+static char __pyx_k_Could_not_create_OGR_Geometry_of[] = "Could not create OGR Geometry of type: %i";
+static char __pyx_k_Determines_the_number_of_dimensi[] = "Determines the number of dimensions of a Fiona geometry.\n    ";
+static char __pyx_k_DimensionsHandler_getNumDimsGeom[] = "DimensionsHandler.getNumDimsGeometryCollection";
+static char __pyx_k_DimensionsHandler_getNumDimsLine[] = "DimensionsHandler.getNumDimsLineString";
+static char __pyx_k_DimensionsHandler_getNumDimsMult[] = "DimensionsHandler.getNumDimsMultiPoint";
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+}
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+}
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+}
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+  {"_buildGeometryCollection", (PyCFunction)__pyx_pw_5fiona_9_geometry_11GeomBuilder_15_buildGeometryCollection, METH_NOARGS, 0},
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+  0, /*tp_print*/
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+}
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+}
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+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
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+}
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+}
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+static int __pyx_tp_traverse_5fiona_9_geometry___pyx_scope_struct__genexpr(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *p = (struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *)o;
+  if (p->__pyx_v_k) {
+    e = (*v)(p->__pyx_v_k, a); if (e) return e;
+  }
+  if (p->__pyx_v_v) {
+    e = (*v)(p->__pyx_v_v, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_9_geometry___pyx_scope_struct__genexpr(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *p = (struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr *)o;
+  tmp = ((PyObject*)p->__pyx_v_k);
+  p->__pyx_v_k = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_v);
+  p->__pyx_v_v = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_5fiona_9_geometry___pyx_scope_struct__genexpr = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona._geometry.__pyx_scope_struct__genexpr", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_9_geometry___pyx_scope_struct__genexpr), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  0, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_9_geometry___pyx_scope_struct__genexpr, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyMethodDef __pyx_methods[] = {
+  {0, 0, 0, 0}
+};
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef __pyx_moduledef = {
+  #if PY_VERSION_HEX < 0x03020000
+    { PyObject_HEAD_INIT(NULL) NULL, 0, NULL },
+  #else
+    PyModuleDef_HEAD_INIT,
+  #endif
+    "_geometry",
+    0, /* m_doc */
+    -1, /* m_size */
+    __pyx_methods /* m_methods */,
+    NULL, /* m_reload */
+    NULL, /* m_traverse */
+    NULL, /* m_clear */
+    NULL /* m_free */
+};
+#endif
+
+static __Pyx_StringTabEntry __pyx_string_tab[] = {
+  {&__pyx_kp_s_3D_GeometryCollection, __pyx_k_3D_GeometryCollection, sizeof(__pyx_k_3D_GeometryCollection), 0, 0, 1, 0},
+  {&__pyx_kp_s_3D_LineString, __pyx_k_3D_LineString, sizeof(__pyx_k_3D_LineString), 0, 0, 1, 0},
+  {&__pyx_kp_s_3D_MultiLineString, __pyx_k_3D_MultiLineString, sizeof(__pyx_k_3D_MultiLineString), 0, 0, 1, 0},
+  {&__pyx_kp_s_3D_MultiPoint, __pyx_k_3D_MultiPoint, sizeof(__pyx_k_3D_MultiPoint), 0, 0, 1, 0},
+  {&__pyx_kp_s_3D_MultiPolygon, __pyx_k_3D_MultiPolygon, sizeof(__pyx_k_3D_MultiPolygon), 0, 0, 1, 0},
+  {&__pyx_kp_s_3D_Point, __pyx_k_3D_Point, sizeof(__pyx_k_3D_Point), 0, 0, 1, 0},
+  {&__pyx_kp_s_3D_Polygon, __pyx_k_3D_Polygon, sizeof(__pyx_k_3D_Polygon), 0, 0, 1, 0},
+  {&__pyx_kp_s_Added_line_s, __pyx_k_Added_line_s, sizeof(__pyx_k_Added_line_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Added_part_s, __pyx_k_Added_part_s, sizeof(__pyx_k_Added_part_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Added_point_s, __pyx_k_Added_point_s, sizeof(__pyx_k_Added_point_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Added_polygon_s, __pyx_k_Added_polygon_s, sizeof(__pyx_k_Added_polygon_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Added_ring_s, __pyx_k_Added_ring_s, sizeof(__pyx_k_Added_ring_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Adding_line_s, __pyx_k_Adding_line_s, sizeof(__pyx_k_Adding_line_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Adding_part_s, __pyx_k_Adding_part_s, sizeof(__pyx_k_Adding_part_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Adding_point_s, __pyx_k_Adding_point_s, sizeof(__pyx_k_Adding_point_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Adding_polygon_s, __pyx_k_Adding_polygon_s, sizeof(__pyx_k_Adding_polygon_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Adding_ring_s, __pyx_k_Adding_ring_s, sizeof(__pyx_k_Adding_ring_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Built_line, __pyx_k_Built_line, sizeof(__pyx_k_Built_line), 0, 0, 1, 0},
+  {&__pyx_kp_s_Built_part, __pyx_k_Built_part, sizeof(__pyx_k_Built_part), 0, 0, 1, 0},
+  {&__pyx_kp_s_Built_polygon, __pyx_k_Built_polygon, sizeof(__pyx_k_Built_polygon), 0, 0, 1, 0},
+  {&__pyx_kp_s_Built_ring, __pyx_k_Built_ring, sizeof(__pyx_k_Built_ring), 0, 0, 1, 0},
+  {&__pyx_kp_s_Closing_ring, __pyx_k_Closing_ring, sizeof(__pyx_k_Closing_ring), 0, 0, 1, 0},
+  {&__pyx_kp_s_Could_not_create_OGR_Geometry_of, __pyx_k_Could_not_create_OGR_Geometry_of, sizeof(__pyx_k_Could_not_create_OGR_Geometry_of), 0, 0, 1, 0},
+  {&__pyx_kp_s_Determines_the_number_of_dimensi, __pyx_k_Determines_the_number_of_dimensi, sizeof(__pyx_k_Determines_the_number_of_dimensi), 0, 0, 1, 0},
+  {&__pyx_n_s_DimensionsHandler, __pyx_k_DimensionsHandler, sizeof(__pyx_k_DimensionsHandler), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDims, __pyx_k_DimensionsHandler_getNumDims, sizeof(__pyx_k_DimensionsHandler_getNumDims), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsGeom, __pyx_k_DimensionsHandler_getNumDimsGeom, sizeof(__pyx_k_DimensionsHandler_getNumDimsGeom), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsLine, __pyx_k_DimensionsHandler_getNumDimsLine, sizeof(__pyx_k_DimensionsHandler_getNumDimsLine), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsLine_2, __pyx_k_DimensionsHandler_getNumDimsLine_2, sizeof(__pyx_k_DimensionsHandler_getNumDimsLine_2), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsMult, __pyx_k_DimensionsHandler_getNumDimsMult, sizeof(__pyx_k_DimensionsHandler_getNumDimsMult), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsMult_2, __pyx_k_DimensionsHandler_getNumDimsMult_2, sizeof(__pyx_k_DimensionsHandler_getNumDimsMult_2), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsMult_3, __pyx_k_DimensionsHandler_getNumDimsMult_3, sizeof(__pyx_k_DimensionsHandler_getNumDimsMult_3), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsPoin, __pyx_k_DimensionsHandler_getNumDimsPoin, sizeof(__pyx_k_DimensionsHandler_getNumDimsPoin), 0, 0, 1, 1},
+  {&__pyx_n_s_DimensionsHandler_getNumDimsPoly, __pyx_k_DimensionsHandler_getNumDimsPoly, sizeof(__pyx_k_DimensionsHandler_getNumDimsPoly), 0, 0, 1, 1},
+  {&__pyx_n_s_EPSG, __pyx_k_EPSG, sizeof(__pyx_k_EPSG), 0, 0, 1, 1},
+  {&__pyx_n_s_Exception, __pyx_k_Exception, sizeof(__pyx_k_Exception), 0, 0, 1, 1},
+  {&__pyx_n_s_Fiona, __pyx_k_Fiona, sizeof(__pyx_k_Fiona), 0, 0, 1, 1},
+  {&__pyx_n_s_GEOJSON2OGR_GEOMETRY_TYPES, __pyx_k_GEOJSON2OGR_GEOMETRY_TYPES, sizeof(__pyx_k_GEOJSON2OGR_GEOMETRY_TYPES), 0, 0, 1, 1},
+  {&__pyx_n_s_GEOMETRY_TYPES, __pyx_k_GEOMETRY_TYPES, sizeof(__pyx_k_GEOMETRY_TYPES), 0, 0, 1, 1},
+  {&__pyx_n_s_GeometryCollection, __pyx_k_GeometryCollection, sizeof(__pyx_k_GeometryCollection), 0, 0, 1, 1},
+  {&__pyx_kp_s_Geometry_s, __pyx_k_Geometry_s, sizeof(__pyx_k_Geometry_s), 0, 0, 1, 0},
+  {&__pyx_n_s_Handler, __pyx_k_Handler, sizeof(__pyx_k_Handler), 0, 0, 1, 1},
+  {&__pyx_n_s_LineString, __pyx_k_LineString, sizeof(__pyx_k_LineString), 0, 0, 1, 1},
+  {&__pyx_n_s_LinearRing, __pyx_k_LinearRing, sizeof(__pyx_k_LinearRing), 0, 0, 1, 1},
+  {&__pyx_n_s_MultiLineString, __pyx_k_MultiLineString, sizeof(__pyx_k_MultiLineString), 0, 0, 1, 1},
+  {&__pyx_n_s_MultiPoint, __pyx_k_MultiPoint, sizeof(__pyx_k_MultiPoint), 0, 0, 1, 1},
+  {&__pyx_n_s_MultiPolygon, __pyx_k_MultiPolygon, sizeof(__pyx_k_MultiPolygon), 0, 0, 1, 1},
+  {&__pyx_n_s_None, __pyx_k_None, sizeof(__pyx_k_None), 0, 0, 1, 1},
+  {&__pyx_n_s_NullHandler, __pyx_k_NullHandler, sizeof(__pyx_k_NullHandler), 0, 0, 1, 1},
+  {&__pyx_n_s_NullHandler_emit, __pyx_k_NullHandler_emit, sizeof(__pyx_k_NullHandler_emit), 0, 0, 1, 1},
+  {&__pyx_kp_s_Null_geom, __pyx_k_Null_geom, sizeof(__pyx_k_Null_geom), 0, 0, 1, 0},
+  {&__pyx_kp_s_PROJ_4_to_be_imported_r, __pyx_k_PROJ_4_to_be_imported_r, sizeof(__pyx_k_PROJ_4_to_be_imported_r), 0, 0, 1, 0},
+  {&__pyx_n_s_Point, __pyx_k_Point, sizeof(__pyx_k_Point), 0, 0, 1, 1},
+  {&__pyx_n_s_Polygon, __pyx_k_Polygon, sizeof(__pyx_k_Polygon), 0, 0, 1, 1},
+  {&__pyx_n_s_Unknown, __pyx_k_Unknown, sizeof(__pyx_k_Unknown), 0, 0, 1, 1},
+  {&__pyx_kp_s_Unsupported_geometry_type_s, __pyx_k_Unsupported_geometry_type_s, sizeof(__pyx_k_Unsupported_geometry_type_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Users_sean_code_Fiona_fiona__ge, __pyx_k_Users_sean_code_Fiona_fiona__ge, sizeof(__pyx_k_Users_sean_code_Fiona_fiona__ge), 0, 0, 1, 0},
+  {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
+  {&__pyx_kp_s__2, __pyx_k__2, sizeof(__pyx_k__2), 0, 0, 1, 0},
+  {&__pyx_kp_s__4, __pyx_k__4, sizeof(__pyx_k__4), 0, 0, 1, 0},
+  {&__pyx_n_s_addHandler, __pyx_k_addHandler, sizeof(__pyx_k_addHandler), 0, 0, 1, 1},
+  {&__pyx_n_s_antimeridian_cutting, __pyx_k_antimeridian_cutting, sizeof(__pyx_k_antimeridian_cutting), 0, 0, 1, 1},
+  {&__pyx_n_s_antimeridian_offset, __pyx_k_antimeridian_offset, sizeof(__pyx_k_antimeridian_offset), 0, 0, 1, 1},
+  {&__pyx_n_s_args, __pyx_k_args, sizeof(__pyx_k_args), 0, 0, 1, 1},
+  {&__pyx_n_s_build, __pyx_k_build, sizeof(__pyx_k_build), 0, 0, 1, 1},
+  {&__pyx_n_s_buildGeometryCollection, __pyx_k_buildGeometryCollection, sizeof(__pyx_k_buildGeometryCollection), 0, 0, 1, 1},
+  {&__pyx_n_s_buildLineString, __pyx_k_buildLineString, sizeof(__pyx_k_buildLineString), 0, 0, 1, 1},
+  {&__pyx_n_s_buildLinearRing, __pyx_k_buildLinearRing, sizeof(__pyx_k_buildLinearRing), 0, 0, 1, 1},
+  {&__pyx_n_s_buildMultiLineString, __pyx_k_buildMultiLineString, sizeof(__pyx_k_buildMultiLineString), 0, 0, 1, 1},
+  {&__pyx_n_s_buildMultiPoint, __pyx_k_buildMultiPoint, sizeof(__pyx_k_buildMultiPoint), 0, 0, 1, 1},
+  {&__pyx_n_s_buildMultiPolygon, __pyx_k_buildMultiPolygon, sizeof(__pyx_k_buildMultiPolygon), 0, 0, 1, 1},
+  {&__pyx_n_s_buildPoint, __pyx_k_buildPoint, sizeof(__pyx_k_buildPoint), 0, 0, 1, 1},
+  {&__pyx_n_s_buildPolygon, __pyx_k_buildPolygon, sizeof(__pyx_k_buildPolygon), 0, 0, 1, 1},
+  {&__pyx_n_s_build_wkb, __pyx_k_build_wkb, sizeof(__pyx_k_build_wkb), 0, 0, 1, 1},
+  {&__pyx_n_s_close, __pyx_k_close, sizeof(__pyx_k_close), 0, 0, 1, 1},
+  {&__pyx_n_s_cogr_geometry, __pyx_k_cogr_geometry, sizeof(__pyx_k_cogr_geometry), 0, 0, 1, 1},
+  {&__pyx_n_s_coordinates, __pyx_k_coordinates, sizeof(__pyx_k_coordinates), 0, 0, 1, 1},
+  {&__pyx_n_s_debug, __pyx_k_debug, sizeof(__pyx_k_debug), 0, 0, 1, 1},
+  {&__pyx_n_s_doc, __pyx_k_doc, sizeof(__pyx_k_doc), 0, 0, 1, 1},
+  {&__pyx_n_s_dst, __pyx_k_dst, sizeof(__pyx_k_dst), 0, 0, 1, 1},
+  {&__pyx_n_s_dst_crs, __pyx_k_dst_crs, sizeof(__pyx_k_dst_crs), 0, 0, 1, 1},
+  {&__pyx_n_s_dst_ogr_geom, __pyx_k_dst_ogr_geom, sizeof(__pyx_k_dst_ogr_geom), 0, 0, 1, 1},
+  {&__pyx_n_s_emit, __pyx_k_emit, sizeof(__pyx_k_emit), 0, 0, 1, 1},
+  {&__pyx_n_s_encode, __pyx_k_encode, sizeof(__pyx_k_encode), 0, 0, 1, 1},
+  {&__pyx_n_s_factory, __pyx_k_factory, sizeof(__pyx_k_factory), 0, 0, 1, 1},
+  {&__pyx_n_s_fiona__geometry, __pyx_k_fiona__geometry, sizeof(__pyx_k_fiona__geometry), 0, 0, 1, 1},
+  {&__pyx_n_s_first, __pyx_k_first, sizeof(__pyx_k_first), 0, 0, 1, 1},
+  {&__pyx_n_s_g, __pyx_k_g, sizeof(__pyx_k_g), 0, 0, 1, 1},
+  {&__pyx_n_s_genexpr, __pyx_k_genexpr, sizeof(__pyx_k_genexpr), 0, 0, 1, 1},
+  {&__pyx_n_s_geom, __pyx_k_geom, sizeof(__pyx_k_geom), 0, 0, 1, 1},
+  {&__pyx_n_s_geom_type, __pyx_k_geom_type, sizeof(__pyx_k_geom_type), 0, 0, 1, 1},
+  {&__pyx_n_s_geometries, __pyx_k_geometries, sizeof(__pyx_k_geometries), 0, 0, 1, 1},
+  {&__pyx_n_s_geometry, __pyx_k_geometry, sizeof(__pyx_k_geometry), 0, 0, 1, 1},
+  {&__pyx_n_s_geometryRT, __pyx_k_geometryRT, sizeof(__pyx_k_geometryRT), 0, 0, 1, 1},
+  {&__pyx_n_s_get, __pyx_k_get, sizeof(__pyx_k_get), 0, 0, 1, 1},
+  {&__pyx_n_s_getLogger, __pyx_k_getLogger, sizeof(__pyx_k_getLogger), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDims, __pyx_k_getNumDims, sizeof(__pyx_k_getNumDims), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsGeometryCollection, __pyx_k_getNumDimsGeometryCollection, sizeof(__pyx_k_getNumDimsGeometryCollection), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsLineString, __pyx_k_getNumDimsLineString, sizeof(__pyx_k_getNumDimsLineString), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsLinearRing, __pyx_k_getNumDimsLinearRing, sizeof(__pyx_k_getNumDimsLinearRing), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsMultiLineString, __pyx_k_getNumDimsMultiLineString, sizeof(__pyx_k_getNumDimsMultiLineString), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsMultiPoint, __pyx_k_getNumDimsMultiPoint, sizeof(__pyx_k_getNumDimsMultiPoint), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsMultiPolygon, __pyx_k_getNumDimsMultiPolygon, sizeof(__pyx_k_getNumDimsMultiPolygon), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsPoint, __pyx_k_getNumDimsPoint, sizeof(__pyx_k_getNumDimsPoint), 0, 0, 1, 1},
+  {&__pyx_n_s_getNumDimsPolygon, __pyx_k_getNumDimsPolygon, sizeof(__pyx_k_getNumDimsPolygon), 0, 0, 1, 1},
+  {&__pyx_n_s_i, __pyx_k_i, sizeof(__pyx_k_i), 0, 0, 1, 1},
+  {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
+  {&__pyx_n_s_init, __pyx_k_init, sizeof(__pyx_k_init), 0, 0, 1, 1},
+  {&__pyx_n_s_inner_coords, __pyx_k_inner_coords, sizeof(__pyx_k_inner_coords), 0, 0, 1, 1},
+  {&__pyx_n_s_items, __pyx_k_items, sizeof(__pyx_k_items), 0, 0, 1, 1},
+  {&__pyx_n_s_iteritems, __pyx_k_iteritems, sizeof(__pyx_k_iteritems), 0, 0, 1, 1},
+  {&__pyx_n_s_join, __pyx_k_join, sizeof(__pyx_k_join), 0, 0, 1, 1},
+  {&__pyx_n_s_key_c, __pyx_k_key_c, sizeof(__pyx_k_key_c), 0, 0, 1, 1},
+  {&__pyx_n_s_log, __pyx_k_log, sizeof(__pyx_k_log), 0, 0, 1, 1},
+  {&__pyx_n_s_logging, __pyx_k_logging, sizeof(__pyx_k_logging), 0, 0, 1, 1},
+  {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
+  {&__pyx_n_s_metaclass, __pyx_k_metaclass, sizeof(__pyx_k_metaclass), 0, 0, 1, 1},
+  {&__pyx_n_s_module, __pyx_k_module, sizeof(__pyx_k_module), 0, 0, 1, 1},
+  {&__pyx_n_s_n, __pyx_k_n, sizeof(__pyx_k_n), 0, 0, 1, 1},
+  {&__pyx_n_s_new_coords, __pyx_k_new_coords, sizeof(__pyx_k_new_coords), 0, 0, 1, 1},
+  {&__pyx_n_s_no_defs, __pyx_k_no_defs, sizeof(__pyx_k_no_defs), 0, 0, 1, 1},
+  {&__pyx_n_s_object, __pyx_k_object, sizeof(__pyx_k_object), 0, 0, 1, 1},
+  {&__pyx_n_s_options, __pyx_k_options, sizeof(__pyx_k_options), 0, 0, 1, 1},
+  {&__pyx_n_s_part, __pyx_k_part, sizeof(__pyx_k_part), 0, 0, 1, 1},
+  {&__pyx_n_s_parts, __pyx_k_parts, sizeof(__pyx_k_parts), 0, 0, 1, 1},
+  {&__pyx_n_s_piece, __pyx_k_piece, sizeof(__pyx_k_piece), 0, 0, 1, 1},
+  {&__pyx_n_s_precision, __pyx_k_precision, sizeof(__pyx_k_precision), 0, 0, 1, 1},
+  {&__pyx_n_s_prepare, __pyx_k_prepare, sizeof(__pyx_k_prepare), 0, 0, 1, 1},
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+  /*--- Function export code ---*/
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+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#endif
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject* args = PyTuple_Pack(1, arg);
+    return (likely(args)) ? __Pyx_PyObject_Call(func, args, NULL) : NULL;
+}
+#endif
+
+static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name) {
+    PyObject *method, *result = NULL;
+    method = __Pyx_PyObject_GetAttrStr(obj, method_name);
+    if (unlikely(!method)) goto bad;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (likely(PyMethod_Check(method))) {
+        PyObject *self = PyMethod_GET_SELF(method);
+        if (likely(self)) {
+            PyObject *function = PyMethod_GET_FUNCTION(method);
+            result = __Pyx_PyObject_CallOneArg(function, self);
+            Py_DECREF(method);
+            return result;
+        }
+    }
+#endif
+    result = __Pyx_PyObject_CallNoArg(method);
+    Py_DECREF(method);
+bad:
+    return result;
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    } else {
+        return __Pyx_IterFinish();
+    }
+    return 0;
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable");
+}
+
+static void __Pyx_UnpackTupleError(PyObject *t, Py_ssize_t index) {
+    if (t == Py_None) {
+      __Pyx_RaiseNoneNotIterableError();
+    } else if (PyTuple_GET_SIZE(t) < index) {
+      __Pyx_RaiseNeedMoreValuesError(PyTuple_GET_SIZE(t));
+    } else {
+      __Pyx_RaiseTooManyValuesError(index);
+    }
+}
+
+static CYTHON_INLINE int __Pyx_unpack_tuple2(PyObject* tuple, PyObject** pvalue1, PyObject** pvalue2,
+                                             int is_tuple, int has_known_size, int decref_tuple) {
+    Py_ssize_t index;
+    PyObject *value1 = NULL, *value2 = NULL, *iter = NULL;
+    if (!is_tuple && unlikely(!PyTuple_Check(tuple))) {
+        iternextfunc iternext;
+        iter = PyObject_GetIter(tuple);
+        if (unlikely(!iter)) goto bad;
+        if (decref_tuple) { Py_DECREF(tuple); tuple = NULL; }
+        iternext = Py_TYPE(iter)->tp_iternext;
+        value1 = iternext(iter); if (unlikely(!value1)) { index = 0; goto unpacking_failed; }
+        value2 = iternext(iter); if (unlikely(!value2)) { index = 1; goto unpacking_failed; }
+        if (!has_known_size && unlikely(__Pyx_IternextUnpackEndCheck(iternext(iter), 2))) goto bad;
+        Py_DECREF(iter);
+    } else {
+        if (!has_known_size && unlikely(PyTuple_GET_SIZE(tuple) != 2)) {
+            __Pyx_UnpackTupleError(tuple, 2);
+            goto bad;
+        }
+#if CYTHON_COMPILING_IN_PYPY
+        value1 = PySequence_ITEM(tuple, 0);
+        if (unlikely(!value1)) goto bad;
+        value2 = PySequence_ITEM(tuple, 1);
+        if (unlikely(!value2)) goto bad;
+#else
+        value1 = PyTuple_GET_ITEM(tuple, 0);
+        value2 = PyTuple_GET_ITEM(tuple, 1);
+        Py_INCREF(value1);
+        Py_INCREF(value2);
+#endif
+        if (decref_tuple) { Py_DECREF(tuple); }
+    }
+    *pvalue1 = value1;
+    *pvalue2 = value2;
+    return 0;
+unpacking_failed:
+    if (!has_known_size && __Pyx_IterFinish() == 0)
+        __Pyx_RaiseNeedMoreValuesError(index);
+bad:
+    Py_XDECREF(iter);
+    Py_XDECREF(value1);
+    Py_XDECREF(value2);
+    if (decref_tuple) { Py_XDECREF(tuple); }
+    return -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_dict_iterator(PyObject* iterable, int is_dict, PyObject* method_name,
+                                                   Py_ssize_t* p_orig_length, int* p_source_is_dict) {
+    is_dict = is_dict || likely(PyDict_CheckExact(iterable));
+    *p_source_is_dict = is_dict;
+#if !CYTHON_COMPILING_IN_PYPY
+    if (is_dict) {
+        *p_orig_length = PyDict_Size(iterable);
+        Py_INCREF(iterable);
+        return iterable;
+    }
+#endif
+    *p_orig_length = 0;
+    if (method_name) {
+        PyObject* iter;
+        iterable = __Pyx_PyObject_CallMethod0(iterable, method_name);
+        if (!iterable)
+            return NULL;
+#if !CYTHON_COMPILING_IN_PYPY
+        if (PyTuple_CheckExact(iterable) || PyList_CheckExact(iterable))
+            return iterable;
+#endif
+        iter = PyObject_GetIter(iterable);
+        Py_DECREF(iterable);
+        return iter;
+    }
+    return PyObject_GetIter(iterable);
+}
+static CYTHON_INLINE int __Pyx_dict_iter_next(PyObject* iter_obj, Py_ssize_t orig_length, Py_ssize_t* ppos,
+                                              PyObject** pkey, PyObject** pvalue, PyObject** pitem, int source_is_dict) {
+    PyObject* next_item;
+#if !CYTHON_COMPILING_IN_PYPY
+    if (source_is_dict) {
+        PyObject *key, *value;
+        if (unlikely(orig_length != PyDict_Size(iter_obj))) {
+            PyErr_SetString(PyExc_RuntimeError, "dictionary changed size during iteration");
+            return -1;
+        }
+        if (unlikely(!PyDict_Next(iter_obj, ppos, &key, &value))) {
+            return 0;
+        }
+        if (pitem) {
+            PyObject* tuple = PyTuple_New(2);
+            if (unlikely(!tuple)) {
+                return -1;
+            }
+            Py_INCREF(key);
+            Py_INCREF(value);
+            PyTuple_SET_ITEM(tuple, 0, key);
+            PyTuple_SET_ITEM(tuple, 1, value);
+            *pitem = tuple;
+        } else {
+            if (pkey) {
+                Py_INCREF(key);
+                *pkey = key;
+            }
+            if (pvalue) {
+                Py_INCREF(value);
+                *pvalue = value;
+            }
+        }
+        return 1;
+    } else if (PyTuple_CheckExact(iter_obj)) {
+        Py_ssize_t pos = *ppos;
+        if (unlikely(pos >= PyTuple_GET_SIZE(iter_obj))) return 0;
+        *ppos = pos + 1;
+        next_item = PyTuple_GET_ITEM(iter_obj, pos);
+        Py_INCREF(next_item);
+    } else if (PyList_CheckExact(iter_obj)) {
+        Py_ssize_t pos = *ppos;
+        if (unlikely(pos >= PyList_GET_SIZE(iter_obj))) return 0;
+        *ppos = pos + 1;
+        next_item = PyList_GET_ITEM(iter_obj, pos);
+        Py_INCREF(next_item);
+    } else
+#endif
+    {
+        next_item = PyIter_Next(iter_obj);
+        if (unlikely(!next_item)) {
+            return __Pyx_IterFinish();
+        }
+    }
+    if (pitem) {
+        *pitem = next_item;
+    } else if (pkey && pvalue) {
+        if (__Pyx_unpack_tuple2(next_item, pkey, pvalue, source_is_dict, source_is_dict, 1))
+            return -1;
+    } else if (pkey) {
+        *pkey = next_item;
+    } else {
+        *pvalue = next_item;
+    }
+    return 1;
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON
+    result = PyDict_GetItem(__pyx_d, name);
+    if (likely(result)) {
+        Py_INCREF(result);
+    } else {
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    if (!result) {
+        PyErr_Clear();
+#endif
+        result = __Pyx_GetBuiltinName(name);
+    }
+    return result;
+}
+
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+    if (s1 == s2) {
+        return (equals == Py_EQ);
+    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
+        const char *ps1, *ps2;
+        Py_ssize_t length = PyBytes_GET_SIZE(s1);
+        if (length != PyBytes_GET_SIZE(s2))
+            return (equals == Py_NE);
+        ps1 = PyBytes_AS_STRING(s1);
+        ps2 = PyBytes_AS_STRING(s2);
+        if (ps1[0] != ps2[0]) {
+            return (equals == Py_NE);
+        } else if (length == 1) {
+            return (equals == Py_EQ);
+        } else {
+            int result = memcmp(ps1, ps2, (size_t)length);
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
+        return (equals == Py_NE);
+    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
+        return (equals == Py_NE);
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+#endif
+}
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+#if PY_MAJOR_VERSION < 3
+    PyObject* owned_ref = NULL;
+#endif
+    int s1_is_unicode, s2_is_unicode;
+    if (s1 == s2) {
+        goto return_eq;
+    }
+    s1_is_unicode = PyUnicode_CheckExact(s1);
+    s2_is_unicode = PyUnicode_CheckExact(s2);
+#if PY_MAJOR_VERSION < 3
+    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
+        owned_ref = PyUnicode_FromObject(s2);
+        if (unlikely(!owned_ref))
+            return -1;
+        s2 = owned_ref;
+        s2_is_unicode = 1;
+    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
+        owned_ref = PyUnicode_FromObject(s1);
+        if (unlikely(!owned_ref))
+            return -1;
+        s1 = owned_ref;
+        s1_is_unicode = 1;
+    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
+        return __Pyx_PyBytes_Equals(s1, s2, equals);
+    }
+#endif
+    if (s1_is_unicode & s2_is_unicode) {
+        Py_ssize_t length;
+        int kind;
+        void *data1, *data2;
+        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
+            return -1;
+        length = __Pyx_PyUnicode_GET_LENGTH(s1);
+        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
+            goto return_ne;
+        }
+        kind = __Pyx_PyUnicode_KIND(s1);
+        if (kind != __Pyx_PyUnicode_KIND(s2)) {
+            goto return_ne;
+        }
+        data1 = __Pyx_PyUnicode_DATA(s1);
+        data2 = __Pyx_PyUnicode_DATA(s2);
+        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
+            goto return_ne;
+        } else if (length == 1) {
+            goto return_eq;
+        } else {
+            int result = memcmp(data1, data2, (size_t)(length * kind));
+            #if PY_MAJOR_VERSION < 3
+            Py_XDECREF(owned_ref);
+            #endif
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & s2_is_unicode) {
+        goto return_ne;
+    } else if ((s2 == Py_None) & s1_is_unicode) {
+        goto return_ne;
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+return_eq:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_EQ);
+return_ne:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_NE);
+#endif
+}
+
+#if !CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values) {
+    return PyObject_CallMethodObjArgs(sep, __pyx_n_s_join, values, NULL);
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_Restore(type, value, tb);
+#endif
+}
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(type, value, tb);
+#endif
+}
+
+static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
+                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
+                                  int full_traceback) {
+    PyObject *old_exc, *old_val, *old_tb;
+    PyObject *ctx;
+    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
+    if (full_traceback) {
+        Py_XINCREF(old_exc);
+        Py_XINCREF(old_val);
+        Py_XINCREF(old_tb);
+        __Pyx_ErrRestore(old_exc, old_val, old_tb);
+        PyErr_PrintEx(1);
+    }
+    #if PY_MAJOR_VERSION < 3
+    ctx = PyString_FromString(name);
+    #else
+    ctx = PyUnicode_FromString(name);
+    #endif
+    __Pyx_ErrRestore(old_exc, old_val, old_tb);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyList_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyTuple_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely((n >= 0) & (n < PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely((n >= 0) & (n < PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return NULL;
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+static CYTHON_INLINE int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v) {
+    int r;
+    if (!j) return -1;
+    r = PyObject_SetItem(o, j, v);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v,
+                                               int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = (!wraparound) ? i : ((likely(i >= 0)) ? i : i + PyList_GET_SIZE(o));
+        if ((!boundscheck) || likely((n >= 0) & (n < PyList_GET_SIZE(o)))) {
+            PyObject* old = PyList_GET_ITEM(o, n);
+            Py_INCREF(v);
+            PyList_SET_ITEM(o, n, v);
+            Py_DECREF(old);
+            return 1;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_ass_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return -1;
+                }
+            }
+            return m->sq_ass_item(o, i, v);
+        }
+    }
+#else
+#if CYTHON_COMPILING_IN_PYPY
+    if (is_list || (PySequence_Check(o) && !PyDict_Check(o))) {
+#else
+    if (is_list || PySequence_Check(o)) {
+#endif
+        return PySequence_SetItem(o, i, v);
+    }
+#endif
+    return __Pyx_SetItemInt_Generic(o, PyInt_FromSsize_t(i), v);
+}
+
+static CYTHON_INLINE int __Pyx_GetItemInt_ByteArray_Fast(PyObject* string, Py_ssize_t i,
+                                                         int wraparound, int boundscheck) {
+    Py_ssize_t length;
+    if (wraparound | boundscheck) {
+        length = PyByteArray_GET_SIZE(string);
+        if (wraparound & unlikely(i < 0)) i += length;
+        if ((!boundscheck) || likely((0 <= i) & (i < length))) {
+            return (unsigned char) (PyByteArray_AS_STRING(string)[i]);
+        } else {
+            PyErr_SetString(PyExc_IndexError, "bytearray index out of range");
+            return -1;
+        }
+    } else {
+        return (unsigned char) (PyByteArray_AS_STRING(string)[i]);
+    }
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetAttr(PyObject *o, PyObject *n) {
+#if CYTHON_COMPILING_IN_CPYTHON
+#if PY_MAJOR_VERSION >= 3
+    if (likely(PyUnicode_Check(n)))
+#else
+    if (likely(PyString_Check(n)))
+#endif
+        return __Pyx_PyObject_GetAttrStr(o, n);
+#endif
+    return PyObject_GetAttr(o, n);
+}
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                if (PyObject_IsSubclass(instance_class, type)) {
+                    type = instance_class;
+                } else {
+                    instance_class = NULL;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+#if PY_VERSION_HEX >= 0x03030000
+    if (cause) {
+#else
+    if (cause && cause != Py_None) {
+#endif
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetSlice(
+        PyObject* obj, Py_ssize_t cstart, Py_ssize_t cstop,
+        PyObject** _py_start, PyObject** _py_stop, PyObject** _py_slice,
+        int has_cstart, int has_cstop, CYTHON_UNUSED int wraparound) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyMappingMethods* mp;
+#if PY_MAJOR_VERSION < 3
+    PySequenceMethods* ms = Py_TYPE(obj)->tp_as_sequence;
+    if (likely(ms && ms->sq_slice)) {
+        if (!has_cstart) {
+            if (_py_start && (*_py_start != Py_None)) {
+                cstart = __Pyx_PyIndex_AsSsize_t(*_py_start);
+                if ((cstart == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstart = 0;
+        }
+        if (!has_cstop) {
+            if (_py_stop && (*_py_stop != Py_None)) {
+                cstop = __Pyx_PyIndex_AsSsize_t(*_py_stop);
+                if ((cstop == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
+            } else
+                cstop = PY_SSIZE_T_MAX;
+        }
+        if (wraparound && unlikely((cstart < 0) | (cstop < 0)) && likely(ms->sq_length)) {
+            Py_ssize_t l = ms->sq_length(obj);
+            if (likely(l >= 0)) {
+                if (cstop < 0) {
+                    cstop += l;
+                    if (cstop < 0) cstop = 0;
+                }
+                if (cstart < 0) {
+                    cstart += l;
+                    if (cstart < 0) cstart = 0;
+                }
+            } else {
+                if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                    PyErr_Clear();
+                else
+                    goto bad;
+            }
+        }
+        return ms->sq_slice(obj, cstart, cstop);
+    }
+#endif
+    mp = Py_TYPE(obj)->tp_as_mapping;
+    if (likely(mp && mp->mp_subscript))
+#endif
+    {
+        PyObject* result;
+        PyObject *py_slice, *py_start, *py_stop;
+        if (_py_slice) {
+            py_slice = *_py_slice;
+        } else {
+            PyObject* owned_start = NULL;
+            PyObject* owned_stop = NULL;
+            if (_py_start) {
+                py_start = *_py_start;
+            } else {
+                if (has_cstart) {
+                    owned_start = py_start = PyInt_FromSsize_t(cstart);
+                    if (unlikely(!py_start)) goto bad;
+                } else
+                    py_start = Py_None;
+            }
+            if (_py_stop) {
+                py_stop = *_py_stop;
+            } else {
+                if (has_cstop) {
+                    owned_stop = py_stop = PyInt_FromSsize_t(cstop);
+                    if (unlikely(!py_stop)) {
+                        Py_XDECREF(owned_start);
+                        goto bad;
+                    }
+                } else
+                    py_stop = Py_None;
+            }
+            py_slice = PySlice_New(py_start, py_stop, Py_None);
+            Py_XDECREF(owned_start);
+            Py_XDECREF(owned_stop);
+            if (unlikely(!py_slice)) goto bad;
+        }
+#if CYTHON_COMPILING_IN_CPYTHON
+        result = mp->mp_subscript(obj, py_slice);
+#else
+        result = PyObject_GetItem(obj, py_slice);
+#endif
+        if (!_py_slice) {
+            Py_DECREF(py_slice);
+        }
+        return result;
+    }
+    PyErr_Format(PyExc_TypeError,
+        "'%.200s' object is unsliceable", Py_TYPE(obj)->tp_name);
+bad:
+    return NULL;
+}
+
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname) {
+    PyErr_Format(PyExc_UnboundLocalError, "local variable '%s' referenced before assignment", varname);
+}
+
+static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
+#if PY_VERSION_HEX >= 0x02070000
+    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+#else
+    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
+#endif
+    if (!ob)
+        goto bad;
+    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
+        goto bad;
+    Py_DECREF(ob);
+    return 0;
+bad:
+    Py_XDECREF(ob);
+    return -1;
+}
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases) {
+    Py_ssize_t i, nbases = PyTuple_GET_SIZE(bases);
+    for (i=0; i < nbases; i++) {
+        PyTypeObject *tmptype;
+        PyObject *tmp = PyTuple_GET_ITEM(bases, i);
+        tmptype = Py_TYPE(tmp);
+#if PY_MAJOR_VERSION < 3
+        if (tmptype == &PyClass_Type)
+            continue;
+#endif
+        if (!metaclass) {
+            metaclass = tmptype;
+            continue;
+        }
+        if (PyType_IsSubtype(metaclass, tmptype))
+            continue;
+        if (PyType_IsSubtype(tmptype, metaclass)) {
+            metaclass = tmptype;
+            continue;
+        }
+        PyErr_SetString(PyExc_TypeError,
+                        "metaclass conflict: "
+                        "the metaclass of a derived class "
+                        "must be a (non-strict) subclass "
+                        "of the metaclasses of all its bases");
+        return NULL;
+    }
+    if (!metaclass) {
+#if PY_MAJOR_VERSION < 3
+        metaclass = &PyClass_Type;
+#else
+        metaclass = &PyType_Type;
+#endif
+    }
+    Py_INCREF((PyObject*) metaclass);
+    return (PyObject*) metaclass;
+}
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* fake_module;
+    PyTypeObject* cached_type = NULL;
+    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
+    if (!fake_module) return NULL;
+    Py_INCREF(fake_module);
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
+    if (cached_type) {
+        if (!PyType_Check((PyObject*)cached_type)) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s is not a type object",
+                type->tp_name);
+            goto bad;
+        }
+        if (cached_type->tp_basicsize != type->tp_basicsize) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s has the wrong size, try recompiling",
+                type->tp_name);
+            goto bad;
+        }
+    } else {
+        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+        PyErr_Clear();
+        if (PyType_Ready(type) < 0) goto bad;
+        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
+            goto bad;
+        Py_INCREF(type);
+        cached_type = type;
+    }
+done:
+    Py_DECREF(fake_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
+}
+
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (unlikely(op->func_doc == NULL)) {
+        if (op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    op->func_doc = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_name == NULL)) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+        if (unlikely(op->func_name == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_qualname;
+    Py_INCREF(value);
+    op->func_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    Py_DECREF(res);
+    return 0;
+}
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyTuple_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_tuple;
+    op->defaults_tuple = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_tuple;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_kwdict;
+    op->defaults_kwdict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_kwdict;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    tmp = op->func_annotations;
+    op->func_annotations = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->func_annotations;
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+#ifndef PY_WRITE_RESTRICTED
+#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
+#endif
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyMem_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return PyMethod_New(func,
+                            type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
+#endif
+}
+#if CYTHON_COMPILING_IN_PYPY
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    Py_ssize_t size;
+    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 0)
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 1)
+                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+#else
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#endif
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_Call,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+#else
+    offsetof(PyCFunctionObject, m_weakreflist),
+#endif
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_CyFunction_descr_get,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#endif
+};
+static int __Pyx_CyFunction_init(void) {
+#if !CYTHON_COMPILING_IN_PYPY
+    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
+#endif
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+    if (__pyx_CyFunctionType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyMem_Malloc(size);
+    if (!m->defaults)
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name,
+                                           PyObject *qualname, PyObject *mkw, PyObject *modname, PyObject *doc) {
+    PyObject *ns;
+    if (metaclass) {
+        PyObject *prep = __Pyx_PyObject_GetAttrStr(metaclass, __pyx_n_s_prepare);
+        if (prep) {
+            PyObject *pargs = PyTuple_Pack(2, name, bases);
+            if (unlikely(!pargs)) {
+                Py_DECREF(prep);
+                return NULL;
+            }
+            ns = PyObject_Call(prep, pargs, mkw);
+            Py_DECREF(prep);
+            Py_DECREF(pargs);
+        } else {
+            if (unlikely(!PyErr_ExceptionMatches(PyExc_AttributeError)))
+                return NULL;
+            PyErr_Clear();
+            ns = PyDict_New();
+        }
+    } else {
+        ns = PyDict_New();
+    }
+    if (unlikely(!ns))
+        return NULL;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_module, modname) < 0)) goto bad;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_qualname, qualname) < 0)) goto bad;
+    if (unlikely(doc && PyObject_SetItem(ns, __pyx_n_s_doc, doc) < 0)) goto bad;
+    return ns;
+bad:
+    Py_DECREF(ns);
+    return NULL;
+}
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases,
+                                      PyObject *dict, PyObject *mkw,
+                                      int calculate_metaclass, int allow_py2_metaclass) {
+    PyObject *result, *margs;
+    PyObject *owned_metaclass = NULL;
+    if (allow_py2_metaclass) {
+        owned_metaclass = PyObject_GetItem(dict, __pyx_n_s_metaclass);
+        if (owned_metaclass) {
+            metaclass = owned_metaclass;
+        } else if (likely(PyErr_ExceptionMatches(PyExc_KeyError))) {
+            PyErr_Clear();
+        } else {
+            return NULL;
+        }
+    }
+    if (calculate_metaclass && (!metaclass || PyType_Check(metaclass))) {
+        metaclass = __Pyx_CalculateMetaclass((PyTypeObject*) metaclass, bases);
+        Py_XDECREF(owned_metaclass);
+        if (unlikely(!metaclass))
+            return NULL;
+        owned_metaclass = metaclass;
+    }
+    margs = PyTuple_Pack(3, name, bases, dict);
+    if (unlikely(!margs)) {
+        result = NULL;
+    } else {
+        result = PyObject_Call(metaclass, margs, mkw);
+        Py_DECREF(margs);
+    }
+    Py_XDECREF(owned_metaclass);
+    return result;
+}
+
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = (start + end) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        PyThreadState_GET(), /*PyThreadState *tstate,*/
+        py_code,             /*PyCodeObject *code,*/
+        __pyx_d,      /*PyObject *globals,*/
+        0                    /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    py_frame->f_lineno = py_line;
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_VERSION_HEX < 0x03030000
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.')) {
+                #if PY_VERSION_HEX < 0x03030000
+                PyObject *py_level = PyInt_FromLong(1);
+                if (!py_level)
+                    goto bad;
+                module = PyObject_CallFunctionObjArgs(py_import,
+                    name, global_dict, empty_dict, list, py_level, NULL);
+                Py_DECREF(py_level);
+                #else
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                #endif
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_VERSION_HEX < 0x03030000
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_VERSION_HEX < 0x03030000
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
+    {                                                                     \
+        func_type value = func_value;                                     \
+        if (sizeof(target_type) < sizeof(func_type)) {                    \
+            if (unlikely(value != (func_type) (target_type) value)) {     \
+                func_type zero = 0;                                       \
+                if (is_unsigned && unlikely(value < zero))                \
+                    goto raise_neg_overflow;                              \
+                else                                                      \
+                    goto raise_overflow;                                  \
+            }                                                             \
+        }                                                                 \
+        return (target_type) value;                                       \
+    }
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+ #endif
+#endif
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
+            } else if (sizeof(int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *x) {
+    const size_t neg_one = (size_t) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(size_t) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(size_t, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (size_t) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(size_t, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(size_t) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(size_t) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(size_t,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(size_t, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(size_t) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, long, PyLong_AsLong(x))
+            } else if (sizeof(size_t) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            size_t val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (size_t) -1;
+        }
+    } else {
+        size_t val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (size_t) -1;
+        val = __Pyx_PyInt_As_size_t(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to size_t");
+    return (size_t) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to size_t");
+    return (size_t) -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
+    const unsigned int neg_one = (unsigned int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(unsigned int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(unsigned int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(unsigned int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(long) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
+            } else if (sizeof(long) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = *type;
+    tstate->exc_value = *value;
+    tstate->exc_traceback = *tb;
+#else
+    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
+    PyErr_SetExcInfo(*type, *value, *tb);
+#endif
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
+}
+
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg) {
+    PyObject *method, *result = NULL;
+    method = __Pyx_PyObject_GetAttrStr(obj, method_name);
+    if (unlikely(!method)) goto bad;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (likely(PyMethod_Check(method))) {
+        PyObject *self = PyMethod_GET_SELF(method);
+        if (likely(self)) {
+            PyObject *args;
+            PyObject *function = PyMethod_GET_FUNCTION(method);
+            args = PyTuple_New(2);
+            if (unlikely(!args)) goto bad;
+            Py_INCREF(self);
+            PyTuple_SET_ITEM(args, 0, self);
+            Py_INCREF(arg);
+            PyTuple_SET_ITEM(args, 1, arg);
+            Py_INCREF(function);
+            Py_DECREF(method); method = NULL;
+            result = __Pyx_PyObject_Call(function, args, NULL);
+            Py_DECREF(args);
+            Py_DECREF(function);
+            return result;
+        }
+    }
+#endif
+    result = __Pyx_PyObject_CallOneArg(method, arg);
+bad:
+    Py_XDECREF(method);
+    return result;
+}
+
+static PyObject *__Pyx_Generator_Next(PyObject *self);
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value);
+static PyObject *__Pyx_Generator_Close(PyObject *self);
+static PyObject *__Pyx_Generator_Throw(PyObject *gen, PyObject *args);
+static PyTypeObject *__pyx_GeneratorType = 0;
+#define __Pyx_Generator_CheckExact(obj) (Py_TYPE(obj) == __pyx_GeneratorType)
+#define __Pyx_Generator_Undelegate(gen) Py_CLEAR((gen)->yieldfrom)
+#if 1 || PY_VERSION_HEX < 0x030300B0
+static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue) {
+    PyObject *et, *ev, *tb;
+    PyObject *value = NULL;
+    __Pyx_ErrFetch(&et, &ev, &tb);
+    if (!et) {
+        Py_XDECREF(tb);
+        Py_XDECREF(ev);
+        Py_INCREF(Py_None);
+        *pvalue = Py_None;
+        return 0;
+    }
+    if (unlikely(et != PyExc_StopIteration) &&
+            unlikely(!PyErr_GivenExceptionMatches(et, PyExc_StopIteration))) {
+        __Pyx_ErrRestore(et, ev, tb);
+        return -1;
+    }
+    if (likely(et == PyExc_StopIteration)) {
+        if (likely(!ev) || !PyObject_IsInstance(ev, PyExc_StopIteration)) {
+            if (!ev) {
+                Py_INCREF(Py_None);
+                ev = Py_None;
+            }
+            Py_XDECREF(tb);
+            Py_DECREF(et);
+            *pvalue = ev;
+            return 0;
+        }
+    }
+    PyErr_NormalizeException(&et, &ev, &tb);
+    if (unlikely(!PyObject_IsInstance(ev, PyExc_StopIteration))) {
+        __Pyx_ErrRestore(et, ev, tb);
+        return -1;
+    }
+    Py_XDECREF(tb);
+    Py_DECREF(et);
+#if PY_VERSION_HEX >= 0x030300A0
+    value = ((PyStopIterationObject *)ev)->value;
+    Py_INCREF(value);
+    Py_DECREF(ev);
+#else
+    {
+        PyObject* args = PyObject_GetAttr(ev, __pyx_n_s_args);
+        Py_DECREF(ev);
+        if (likely(args)) {
+            value = PyObject_GetItem(args, 0);
+            Py_DECREF(args);
+        }
+        if (unlikely(!value)) {
+            __Pyx_ErrRestore(NULL, NULL, NULL);
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+    }
+#endif
+    *pvalue = value;
+    return 0;
+}
+#endif
+static CYTHON_INLINE
+void __Pyx_Generator_ExceptionClear(__pyx_GeneratorObject *self) {
+    PyObject *exc_type = self->exc_type;
+    PyObject *exc_value = self->exc_value;
+    PyObject *exc_traceback = self->exc_traceback;
+    self->exc_type = NULL;
+    self->exc_value = NULL;
+    self->exc_traceback = NULL;
+    Py_XDECREF(exc_type);
+    Py_XDECREF(exc_value);
+    Py_XDECREF(exc_traceback);
+}
+static CYTHON_INLINE
+int __Pyx_Generator_CheckRunning(__pyx_GeneratorObject *gen) {
+    if (unlikely(gen->is_running)) {
+        PyErr_SetString(PyExc_ValueError,
+                        "generator already executing");
+        return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE
+PyObject *__Pyx_Generator_SendEx(__pyx_GeneratorObject *self, PyObject *value) {
+    PyObject *retval;
+    assert(!self->is_running);
+    if (unlikely(self->resume_label == 0)) {
+        if (unlikely(value && value != Py_None)) {
+            PyErr_SetString(PyExc_TypeError,
+                            "can't send non-None value to a "
+                            "just-started generator");
+            return NULL;
+        }
+    }
+    if (unlikely(self->resume_label == -1)) {
+        PyErr_SetNone(PyExc_StopIteration);
+        return NULL;
+    }
+    if (value) {
+#if CYTHON_COMPILING_IN_PYPY
+#else
+        if (self->exc_traceback) {
+            PyThreadState *tstate = PyThreadState_GET();
+            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
+            PyFrameObject *f = tb->tb_frame;
+            Py_XINCREF(tstate->frame);
+            assert(f->f_back == NULL);
+            f->f_back = tstate->frame;
+        }
+#endif
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
+                            &self->exc_traceback);
+    } else {
+        __Pyx_Generator_ExceptionClear(self);
+    }
+    self->is_running = 1;
+    retval = self->body((PyObject *) self, value);
+    self->is_running = 0;
+    if (retval) {
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
+                            &self->exc_traceback);
+#if CYTHON_COMPILING_IN_PYPY
+#else
+        if (self->exc_traceback) {
+            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
+            PyFrameObject *f = tb->tb_frame;
+            Py_CLEAR(f->f_back);
+        }
+#endif
+    } else {
+        __Pyx_Generator_ExceptionClear(self);
+    }
+    return retval;
+}
+static CYTHON_INLINE
+PyObject *__Pyx_Generator_FinishDelegation(__pyx_GeneratorObject *gen) {
+    PyObject *ret;
+    PyObject *val = NULL;
+    __Pyx_Generator_Undelegate(gen);
+    __Pyx_PyGen_FetchStopIterationValue(&val);
+    ret = __Pyx_Generator_SendEx(gen, val);
+    Py_XDECREF(val);
+    return ret;
+}
+static PyObject *__Pyx_Generator_Next(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
+    PyObject *yf = gen->yieldfrom;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        gen->is_running = 1;
+        ret = Py_TYPE(yf)->tp_iternext(yf);
+        gen->is_running = 0;
+        if (likely(ret)) {
+            return ret;
+        }
+        return __Pyx_Generator_FinishDelegation(gen);
+    }
+    return __Pyx_Generator_SendEx(gen, Py_None);
+}
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
+    PyObject *yf = gen->yieldfrom;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        gen->is_running = 1;
+        if (__Pyx_Generator_CheckExact(yf)) {
+            ret = __Pyx_Generator_Send(yf, value);
+        } else {
+            if (value == Py_None)
+                ret = PyIter_Next(yf);
+            else
+                ret = __Pyx_PyObject_CallMethod1(yf, __pyx_n_s_send, value);
+        }
+        gen->is_running = 0;
+        if (likely(ret)) {
+            return ret;
+        }
+        return __Pyx_Generator_FinishDelegation(gen);
+    }
+    return __Pyx_Generator_SendEx(gen, value);
+}
+static int __Pyx_Generator_CloseIter(__pyx_GeneratorObject *gen, PyObject *yf) {
+    PyObject *retval = NULL;
+    int err = 0;
+    if (__Pyx_Generator_CheckExact(yf)) {
+        retval = __Pyx_Generator_Close(yf);
+        if (!retval)
+            return -1;
+    } else {
+        PyObject *meth;
+        gen->is_running = 1;
+        meth = PyObject_GetAttr(yf, __pyx_n_s_close);
+        if (unlikely(!meth)) {
+            if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
+                PyErr_WriteUnraisable(yf);
+            }
+            PyErr_Clear();
+        } else {
+            retval = PyObject_CallFunction(meth, NULL);
+            Py_DECREF(meth);
+            if (!retval)
+                err = -1;
+        }
+        gen->is_running = 0;
+    }
+    Py_XDECREF(retval);
+    return err;
+}
+static PyObject *__Pyx_Generator_Close(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject *retval, *raised_exception;
+    PyObject *yf = gen->yieldfrom;
+    int err = 0;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        Py_INCREF(yf);
+        err = __Pyx_Generator_CloseIter(gen, yf);
+        __Pyx_Generator_Undelegate(gen);
+        Py_DECREF(yf);
+    }
+    if (err == 0)
+        PyErr_SetNone(PyExc_GeneratorExit);
+    retval = __Pyx_Generator_SendEx(gen, NULL);
+    if (retval) {
+        Py_DECREF(retval);
+        PyErr_SetString(PyExc_RuntimeError,
+                        "generator ignored GeneratorExit");
+        return NULL;
+    }
+    raised_exception = PyErr_Occurred();
+    if (!raised_exception
+        || raised_exception == PyExc_StopIteration
+        || raised_exception == PyExc_GeneratorExit
+        || PyErr_GivenExceptionMatches(raised_exception, PyExc_GeneratorExit)
+        || PyErr_GivenExceptionMatches(raised_exception, PyExc_StopIteration))
+    {
+        if (raised_exception) PyErr_Clear();
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+    return NULL;
+}
+static PyObject *__Pyx_Generator_Throw(PyObject *self, PyObject *args) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject *typ;
+    PyObject *tb = NULL;
+    PyObject *val = NULL;
+    PyObject *yf = gen->yieldfrom;
+    if (!PyArg_UnpackTuple(args, (char *)"throw", 1, 3, &typ, &val, &tb))
+        return NULL;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        Py_INCREF(yf);
+        if (PyErr_GivenExceptionMatches(typ, PyExc_GeneratorExit)) {
+            int err = __Pyx_Generator_CloseIter(gen, yf);
+            Py_DECREF(yf);
+            __Pyx_Generator_Undelegate(gen);
+            if (err < 0)
+                return __Pyx_Generator_SendEx(gen, NULL);
+            goto throw_here;
+        }
+        gen->is_running = 1;
+        if (__Pyx_Generator_CheckExact(yf)) {
+            ret = __Pyx_Generator_Throw(yf, args);
+        } else {
+            PyObject *meth = PyObject_GetAttr(yf, __pyx_n_s_throw);
+            if (unlikely(!meth)) {
+                Py_DECREF(yf);
+                if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
+                    gen->is_running = 0;
+                    return NULL;
+                }
+                PyErr_Clear();
+                __Pyx_Generator_Undelegate(gen);
+                gen->is_running = 0;
+                goto throw_here;
+            }
+            ret = PyObject_CallObject(meth, args);
+            Py_DECREF(meth);
+        }
+        gen->is_running = 0;
+        Py_DECREF(yf);
+        if (!ret) {
+            ret = __Pyx_Generator_FinishDelegation(gen);
+        }
+        return ret;
+    }
+throw_here:
+    __Pyx_Raise(typ, val, tb, NULL);
+    return __Pyx_Generator_SendEx(gen, NULL);
+}
+static int __Pyx_Generator_traverse(PyObject *self, visitproc visit, void *arg) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    Py_VISIT(gen->closure);
+    Py_VISIT(gen->classobj);
+    Py_VISIT(gen->yieldfrom);
+    Py_VISIT(gen->exc_type);
+    Py_VISIT(gen->exc_value);
+    Py_VISIT(gen->exc_traceback);
+    return 0;
+}
+static int __Pyx_Generator_clear(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    Py_CLEAR(gen->closure);
+    Py_CLEAR(gen->classobj);
+    Py_CLEAR(gen->yieldfrom);
+    Py_CLEAR(gen->exc_type);
+    Py_CLEAR(gen->exc_value);
+    Py_CLEAR(gen->exc_traceback);
+    Py_CLEAR(gen->gi_name);
+    Py_CLEAR(gen->gi_qualname);
+    return 0;
+}
+static void __Pyx_Generator_dealloc(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject_GC_UnTrack(gen);
+    if (gen->gi_weakreflist != NULL)
+        PyObject_ClearWeakRefs(self);
+    if (gen->resume_label > 0) {
+        PyObject_GC_Track(self);
+#if PY_VERSION_HEX >= 0x030400a1
+        if (PyObject_CallFinalizerFromDealloc(self))
+#else
+        Py_TYPE(gen)->tp_del(self);
+        if (self->ob_refcnt > 0)
+#endif
+        {
+            return;
+        }
+        PyObject_GC_UnTrack(self);
+    }
+    __Pyx_Generator_clear(self);
+    PyObject_GC_Del(gen);
+}
+static void __Pyx_Generator_del(PyObject *self) {
+    PyObject *res;
+    PyObject *error_type, *error_value, *error_traceback;
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    if (gen->resume_label <= 0)
+        return ;
+#if PY_VERSION_HEX < 0x030400a1
+    assert(self->ob_refcnt == 0);
+    self->ob_refcnt = 1;
+#endif
+    __Pyx_ErrFetch(&error_type, &error_value, &error_traceback);
+    res = __Pyx_Generator_Close(self);
+    if (res == NULL)
+        PyErr_WriteUnraisable(self);
+    else
+        Py_DECREF(res);
+    __Pyx_ErrRestore(error_type, error_value, error_traceback);
+#if PY_VERSION_HEX < 0x030400a1
+    assert(self->ob_refcnt > 0);
+    if (--self->ob_refcnt == 0) {
+        return;
+    }
+    {
+        Py_ssize_t refcnt = self->ob_refcnt;
+        _Py_NewReference(self);
+        self->ob_refcnt = refcnt;
+    }
+#if CYTHON_COMPILING_IN_CPYTHON
+    assert(PyType_IS_GC(self->ob_type) &&
+           _Py_AS_GC(self)->gc.gc_refs != _PyGC_REFS_UNTRACKED);
+    _Py_DEC_REFTOTAL;
+#endif
+#ifdef COUNT_ALLOCS
+    --Py_TYPE(self)->tp_frees;
+    --Py_TYPE(self)->tp_allocs;
+#endif
+#endif
+}
+static PyObject *
+__Pyx_Generator_get_name(__pyx_GeneratorObject *self)
+{
+    Py_INCREF(self->gi_name);
+    return self->gi_name;
+}
+static int
+__Pyx_Generator_set_name(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = self->gi_name;
+    Py_INCREF(value);
+    self->gi_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_Generator_get_qualname(__pyx_GeneratorObject *self)
+{
+    Py_INCREF(self->gi_qualname);
+    return self->gi_qualname;
+}
+static int
+__Pyx_Generator_set_qualname(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = self->gi_qualname;
+    Py_INCREF(value);
+    self->gi_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyGetSetDef __pyx_Generator_getsets[] = {
+    {(char *) "__name__", (getter)__Pyx_Generator_get_name, (setter)__Pyx_Generator_set_name,
+     (char*) PyDoc_STR("name of the generator"), 0},
+    {(char *) "__qualname__", (getter)__Pyx_Generator_get_qualname, (setter)__Pyx_Generator_set_qualname,
+     (char*) PyDoc_STR("qualified name of the generator"), 0},
+    {0, 0, 0, 0, 0}
+};
+static PyMemberDef __pyx_Generator_memberlist[] = {
+    {(char *) "gi_running", T_BOOL, offsetof(__pyx_GeneratorObject, is_running), READONLY, NULL},
+    {0, 0, 0, 0, 0}
+};
+static PyMethodDef __pyx_Generator_methods[] = {
+    {"send", (PyCFunction) __Pyx_Generator_Send, METH_O, 0},
+    {"throw", (PyCFunction) __Pyx_Generator_Throw, METH_VARARGS, 0},
+    {"close", (PyCFunction) __Pyx_Generator_Close, METH_NOARGS, 0},
+    {0, 0, 0, 0}
+};
+static PyTypeObject __pyx_GeneratorType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "generator",
+    sizeof(__pyx_GeneratorObject),
+    0,
+    (destructor) __Pyx_Generator_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_HAVE_FINALIZE,
+    0,
+    (traverseproc) __Pyx_Generator_traverse,
+    0,
+    0,
+    offsetof(__pyx_GeneratorObject, gi_weakreflist),
+    0,
+    (iternextfunc) __Pyx_Generator_Next,
+    __pyx_Generator_methods,
+    __pyx_Generator_memberlist,
+    __pyx_Generator_getsets,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#else
+    __Pyx_Generator_del,
+#endif
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    __Pyx_Generator_del,
+#endif
+};
+static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
+                                                  PyObject *closure, PyObject *name, PyObject *qualname) {
+    __pyx_GeneratorObject *gen =
+        PyObject_GC_New(__pyx_GeneratorObject, &__pyx_GeneratorType_type);
+    if (gen == NULL)
+        return NULL;
+    gen->body = body;
+    gen->closure = closure;
+    Py_XINCREF(closure);
+    gen->is_running = 0;
+    gen->resume_label = 0;
+    gen->classobj = NULL;
+    gen->yieldfrom = NULL;
+    gen->exc_type = NULL;
+    gen->exc_value = NULL;
+    gen->exc_traceback = NULL;
+    gen->gi_weakreflist = NULL;
+    Py_XINCREF(qualname);
+    gen->gi_qualname = qualname;
+    Py_XINCREF(name);
+    gen->gi_name = name;
+    PyObject_GC_Track(gen);
+    return gen;
+}
+static int __pyx_Generator_init(void) {
+    __pyx_GeneratorType_type.tp_getattro = PyObject_GenericGetAttr;
+    __pyx_GeneratorType_type.tp_iter = PyObject_SelfIter;
+    __pyx_GeneratorType = __Pyx_FetchCommonType(&__pyx_GeneratorType_type);
+    if (__pyx_GeneratorType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+#if PY_VERSION_HEX < 0x03030000
+        char* defenc_c;
+        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+        if (!defenc) return NULL;
+        defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        {
+            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+            char* c;
+            for (c = defenc_c; c < end; c++) {
+                if ((unsigned char) (*c) >= 128) {
+                    PyUnicode_AsASCIIString(o);
+                    return NULL;
+                }
+            }
+        }
+#endif
+        *length = PyBytes_GET_SIZE(defenc);
+        return defenc_c;
+#else
+        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        if (PyUnicode_IS_ASCII(o)) {
+            *length = PyUnicode_GET_LENGTH(o);
+            return PyUnicode_AsUTF8(o);
+        } else {
+            PyUnicode_AsASCIIString(o);
+            return NULL;
+        }
+#else
+        return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+#endif
+    } else
+#endif
+#if !CYTHON_COMPILING_IN_PYPY
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+  PyNumberMethods *m;
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (PyInt_Check(x) || PyLong_Check(x))
+#else
+  if (PyLong_Check(x))
+#endif
+    return Py_INCREF(x), x;
+  m = Py_TYPE(x)->tp_as_number;
+#if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = PyNumber_Long(x);
+  }
+#else
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Long(x);
+  }
+#endif
+  if (res) {
+#if PY_MAJOR_VERSION < 3
+    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+#else
+    if (!PyLong_Check(res)) {
+#endif
+      PyErr_Format(PyExc_TypeError,
+                   "__%.4s__ returned non-%.4s (type %.200s)",
+                   name, name, Py_TYPE(res)->tp_name);
+      Py_DECREF(res);
+      return NULL;
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b)))
+      return PyInt_AS_LONG(b);
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+     #if CYTHON_USE_PYLONG_INTERNALS
+       switch (Py_SIZE(b)) {
+       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
+       case  0: return 0;
+       case  1: return ((PyLongObject*)b)->ob_digit[0];
+       }
+     #endif
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/fiona/_transform.cpp b/fiona/_transform.cpp
new file mode 100644
index 0000000..587cd07
--- /dev/null
+++ b/fiona/_transform.cpp
@@ -0,0 +1,6800 @@
+/* Generated by Cython 0.21 */
+
+#define PY_SSIZE_T_CLEAN
+#ifndef CYTHON_USE_PYLONG_INTERNALS
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#else
+#include "pyconfig.h"
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 1
+#else
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#endif
+#endif
+#endif
+#include "Python.h"
+#ifndef Py_PYTHON_H
+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03020000)
+    #error Cython requires Python 2.6+ or Python 3.2+.
+#else
+#define CYTHON_ABI "0_21"
+#include <stddef.h>
+#ifndef offsetof
+#define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+#endif
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+#ifndef DL_IMPORT
+  #define DL_IMPORT(t) t
+#endif
+#ifndef DL_EXPORT
+  #define DL_EXPORT(t) t
+#endif
+#ifndef PY_LONG_LONG
+  #define PY_LONG_LONG LONG_LONG
+#endif
+#ifndef Py_HUGE_VAL
+  #define Py_HUGE_VAL HUGE_VAL
+#endif
+#ifdef PYPY_VERSION
+#define CYTHON_COMPILING_IN_PYPY 1
+#define CYTHON_COMPILING_IN_CPYTHON 0
+#else
+#define CYTHON_COMPILING_IN_PYPY 0
+#define CYTHON_COMPILING_IN_CPYTHON 1
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600
+#define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_CHECKTYPES 0
+  #define Py_TPFLAGS_HAVE_INDEX 0
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+#if PY_VERSION_HEX < 0x030400a1 && !defined(Py_TPFLAGS_HAVE_FINALIZE)
+  #define Py_TPFLAGS_HAVE_FINALIZE 0
+#endif
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
+                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+#else
+  #define CYTHON_PEP393_ENABLED 0
+  #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+#endif
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
+#else
+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ? \
+      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
+   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
+   a quiet NaN. */
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#ifdef __cplusplus
+template<typename T>
+void __Pyx_call_destructor(T* x) {
+    x->~T();
+}
+#endif
+
+
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+#define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#define __PYX_HAVE__fiona___transform
+#define __PYX_HAVE_API__fiona___transform
+#include "gdal.h"
+#include "gdal_version.h"
+#include "cpl_conv.h"
+#include "cpl_string.h"
+#include "ogr_core.h"
+#include "ogr_srs_api.h"
+#include "ogr_api.h"
+#include "ogr_geometry.h"
+#include "ogr_spatialref.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#ifdef PYREX_WITHOUT_ASSERTIONS
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
+    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
+    (sizeof(type) > sizeof(Py_ssize_t) &&               \
+          likely(v < (type)PY_SSIZE_T_MAX ||            \
+                 v == (type)PY_SSIZE_T_MAX)  &&         \
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
+                                v == (type)PY_SSIZE_T_MIN)))  ||  \
+    (sizeof(type) == sizeof(Py_ssize_t) &&              \
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
+#if PY_MAJOR_VERSION < 3
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#else
+#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
+#endif
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+
+static PyObject *__pyx_m;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "fiona/_transform.pyx",
+  "fiona/_geometry.pxd",
+};
+
+/* "ograpi.pxd":21
+ *     void    CSLDestroy (char **list)
+ * 
+ * ctypedef int OGRErr             # <<<<<<<<<<<<<<
+ * ctypedef struct OGREnvelope:
+ *     double MinX
+ */
+typedef int __pyx_t_5fiona_6ograpi_OGRErr;
+
+/*--- Type declarations ---*/
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder;
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder;
+struct __pyx_t_5fiona_6ograpi_OGREnvelope;
+typedef struct __pyx_t_5fiona_6ograpi_OGREnvelope __pyx_t_5fiona_6ograpi_OGREnvelope;
+
+/* "ograpi.pxd":22
+ * 
+ * ctypedef int OGRErr
+ * ctypedef struct OGREnvelope:             # <<<<<<<<<<<<<<
+ *     double MinX
+ *     double MaxX
+ */
+struct __pyx_t_5fiona_6ograpi_OGREnvelope {
+  double MinX;
+  double MaxX;
+  double MinY;
+  double MaxY;
+};
+
+/* "_geometry.pxd":2
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void *geom
+ *     cdef object code
+ */
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtab;
+  void *geom;
+  PyObject *code;
+  PyObject *geomtypename;
+  PyObject *ndims;
+};
+
+
+/* "_geometry.pxd":21
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void * _createOgrGeometry(self, int geom_type)
+ *     cdef _addPointToGeometry(self, void *cogr_geometry, object coordinate)
+ */
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtab;
+};
+
+
+
+/* "_geometry.pxd":2
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void *geom
+ *     cdef object code
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder {
+  PyObject *(*_buildCoords)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildParts)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*build)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*build_wkb)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, PyObject *, int __pyx_skip_dispatch);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtabptr_5fiona_9_geometry_GeomBuilder;
+
+
+/* "_geometry.pxd":21
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void * _createOgrGeometry(self, int geom_type)
+ *     cdef _addPointToGeometry(self, void *cogr_geometry, object coordinate)
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder {
+  void *(*_createOgrGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, int);
+  PyObject *(*_addPointToGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, void *, PyObject *);
+  void *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*build)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtabptr_5fiona_9_geometry_OGRGeomBuilder;
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+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+#else
+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {                            \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_XDECREF(tmp);                              \
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+#define __Pyx_DECREF_SET(r, v) do {                             \
+        PyObject *tmp = (PyObject *) r;                         \
+        r = v; __Pyx_DECREF(tmp);                               \
+    } while (0)
+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro))
+        return tp->tp_getattro(obj, attr_name);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
+#endif
+    return PyObject_GetAttr(obj, attr_name);
+}
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
+    const char* function_name);
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+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb);
+
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+static CYTHON_INLINE int __Pyx_IterFinish(void);
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
+#else
+#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL)
+#endif
+
+#include <string.h>
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
+
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyString_Equals __Pyx_PyUnicode_Equals
+#else
+#define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
+    Py_ssize_t len = Py_SIZE(list);
+    if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
+        Py_INCREF(x);
+        PyList_SET_ITEM(list, len, x);
+        Py_SIZE(list) = len+1;
+        return 0;
+    }
+    return PyList_Append(list, x);
+}
+#else
+#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
+#endif
+
+#if PY_MAJOR_VERSION < 3
+#define __Pyx_PyString_Join __Pyx_PyBytes_Join
+#define __Pyx_PyBaseString_Join(s, v) (PyUnicode_CheckExact(s) ? PyUnicode_Join(s, v) : __Pyx_PyBytes_Join(s, v))
+#else
+#define __Pyx_PyString_Join PyUnicode_Join
+#define __Pyx_PyBaseString_Join PyUnicode_Join
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+    #if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyBytes_Join _PyString_Join
+    #else
+    #define __Pyx_PyBytes_Join _PyBytes_Join
+    #endif
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values);
+#endif
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name);
+
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename,
+                                  int full_traceback);
+
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) : \
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
+
+#define __Pyx_SetItemInt(o, i, v, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_SetItemInt_Fast(o, (Py_ssize_t)i, v, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list assignment index out of range"), -1) : \
+               __Pyx_SetItemInt_Generic(o, to_py_func(i), v)))
+static CYTHON_INLINE int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v);
+static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v,
+                                               int is_list, int wraparound, int boundscheck);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_ListComp_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
+    Py_ssize_t len = Py_SIZE(list);
+    if (likely(L->allocated > len)) {
+        Py_INCREF(x);
+        PyList_SET_ITEM(list, len, x);
+        Py_SIZE(list) = len+1;
+        return 0;
+    }
+    return PyList_Append(list, x);
+}
+#else
+#define __Pyx_ListComp_Append(L,x) PyList_Append(L,x)
+#endif
+
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname);
+
+static void* __Pyx_GetVtable(PyObject *dict);
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases);
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
+
+#define __Pyx_CyFunction_USED 1
+#include <structmember.h>
+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CyFunction_GetClosure(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#define __Pyx_CyFunction_GetClassObj(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_classobj)
+#define __Pyx_CyFunction_Defaults(type, f) \
+    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
+#define __Pyx_CyFunction_SetDefaultsGetter(f, g) \
+    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
+typedef struct {
+    PyCFunctionObject func;
+#if PY_VERSION_HEX < 0x030500A0
+    PyObject *func_weakreflist;
+#endif
+    PyObject *func_dict;
+    PyObject *func_name;
+    PyObject *func_qualname;
+    PyObject *func_doc;
+    PyObject *func_globals;
+    PyObject *func_code;
+    PyObject *func_closure;
+    PyObject *func_classobj;
+    void *defaults;
+    int defaults_pyobjects;
+    int flags;
+    PyObject *defaults_tuple;
+    PyObject *defaults_kwdict;
+    PyObject *(*defaults_getter)(PyObject *);
+    PyObject *func_annotations;
+} __pyx_CyFunctionObject;
+static PyTypeObject *__pyx_CyFunctionType = 0;
+#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code) \
+    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *self,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
+                                                         size_t size,
+                                                         int pyobjects);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
+                                                            PyObject *tuple);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
+                                                             PyObject *dict);
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
+                                                              PyObject *dict);
+static int __Pyx_CyFunction_init(void);
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+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name, PyObject *qualname,
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+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases, PyObject *dict,
+                                      PyObject *mkw, int calculate_metaclass, int allow_py2_metaclass);
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+typedef struct {
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+} __Pyx_CodeObjectCacheEntry;
+struct __Pyx_CodeObjectCache {
+    int count;
+    int max_count;
+    __Pyx_CodeObjectCacheEntry* entries;
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+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
+static PyCodeObject *__pyx_find_code_object(int code_line);
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
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+static void __Pyx_AddTraceback(const char *funcname, int c_line,
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+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
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+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
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+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *);
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+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
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+#ifndef __Pyx_CppExn2PyErr
+#include <new>
+#include <typeinfo>
+#include <stdexcept>
+#include <ios>
+static void __Pyx_CppExn2PyErr() {
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+      throw;
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+  } catch (const std::domain_error& exn) {
+    PyErr_SetString(PyExc_ValueError, exn.what());
+  } catch (const std::invalid_argument& exn) {
+    PyErr_SetString(PyExc_ValueError, exn.what());
+  } catch (const std::ios_base::failure& exn) {
+    PyErr_SetString(PyExc_IOError, exn.what());
+  } catch (const std::out_of_range& exn) {
+    PyErr_SetString(PyExc_IndexError, exn.what());
+  } catch (const std::overflow_error& exn) {
+    PyErr_SetString(PyExc_OverflowError, exn.what());
+  } catch (const std::range_error& exn) {
+    PyErr_SetString(PyExc_ArithmeticError, exn.what());
+  } catch (const std::underflow_error& exn) {
+    PyErr_SetString(PyExc_ArithmeticError, exn.what());
+  } catch (const std::exception& exn) {
+    PyErr_SetString(PyExc_RuntimeError, exn.what());
+  }
+  catch (...)
+  {
+    PyErr_SetString(PyExc_RuntimeError, "Unknown exception");
+  }
+}
+#endif
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+static int __Pyx_check_binary_version(void);
+
+#if !defined(__Pyx_PyIdentifier_FromString)
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_PyIdentifier_FromString(s) PyString_FromString(s)
+#else
+  #define __Pyx_PyIdentifier_FromString(s) PyUnicode_FromString(s)
+#endif
+#endif
+
+static PyObject *__Pyx_ImportModule(const char *name);
+
+static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, size_t size, int strict);
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
+
+
+/* Module declarations from 'fiona' */
+
+/* Module declarations from 'fiona.ograpi' */
+
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+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_OGRGeomBuilder = 0;
+
+/* Module declarations from 'fiona._transform' */
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+static PyObject *__pyx_builtin_round;
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+static char __pyx_k_i[] = "i";
+static char __pyx_k_n[] = "n";
+static char __pyx_k_s[] = "+%s";
+static char __pyx_k_v[] = "v";
+static char __pyx_k_x[] = "x";
+static char __pyx_k_y[] = "y";
+static char __pyx_k__3[] = ":";
+static char __pyx_k__5[] = " ";
+static char __pyx_k_xp[] = "xp";
+static char __pyx_k_xs[] = "xs";
+static char __pyx_k_yp[] = "yp";
+static char __pyx_k_ys[] = "ys";
+static char __pyx_k_YES[] = "YES";
+static char __pyx_k_doc[] = "__doc__";
+static char __pyx_k_dst[] = "dst";
+static char __pyx_k_get[] = "get";
+static char __pyx_k_log[] = "log";
+static char __pyx_k_res[] = "res";
+static char __pyx_k_s_s[] = "+%s=%s";
+static char __pyx_k_src[] = "src";
+static char __pyx_k_zip[] = "zip";
+static char __pyx_k_EPSG[] = "EPSG";
+static char __pyx_k_emit[] = "emit";
+static char __pyx_k_geom[] = "geom";
+static char __pyx_k_init[] = "init";
+static char __pyx_k_join[] = "join";
+static char __pyx_k_main[] = "__main__";
+static char __pyx_k_part[] = "part";
+static char __pyx_k_ring[] = "ring";
+static char __pyx_k_self[] = "self";
+static char __pyx_k_test[] = "__test__";
+static char __pyx_k_type[] = "type";
+static char __pyx_k_Fiona[] = "Fiona";
+static char __pyx_k_Point[] = "Point";
+static char __pyx_k_debug[] = "debug";
+static char __pyx_k_items[] = "items";
+static char __pyx_k_key_c[] = "key_c";
+static char __pyx_k_parts[] = "parts";
+static char __pyx_k_piece[] = "piece";
+static char __pyx_k_range[] = "range";
+static char __pyx_k_round[] = "round";
+static char __pyx_k_split[] = "split";
+static char __pyx_k_upper[] = "upper";
+static char __pyx_k_utf_8[] = "utf-8";
+static char __pyx_k_val_c[] = "val_c";
+static char __pyx_k_encode[] = "encode";
+static char __pyx_k_import[] = "__import__";
+static char __pyx_k_module[] = "__module__";
+static char __pyx_k_proj_c[] = "proj_c";
+static char __pyx_k_record[] = "record";
+static char __pyx_k_res_xs[] = "res_xs";
+static char __pyx_k_res_ys[] = "res_ys";
+static char __pyx_k_wktext[] = "wktext";
+static char __pyx_k_Handler[] = "Handler";
+static char __pyx_k_Polygon[] = "Polygon";
+static char __pyx_k_dst_crs[] = "dst_crs";
+static char __pyx_k_factory[] = "factory";
+static char __pyx_k_logging[] = "logging";
+static char __pyx_k_no_defs[] = "no_defs";
+static char __pyx_k_options[] = "options";
+static char __pyx_k_prepare[] = "__prepare__";
+static char __pyx_k_src_crs[] = "src_crs";
+static char __pyx_k_qualname[] = "__qualname__";
+static char __pyx_k_getLogger[] = "getLogger";
+static char __pyx_k_metaclass[] = "__metaclass__";
+static char __pyx_k_precision[] = "precision";
+static char __pyx_k_transform[] = "transform";
+static char __pyx_k_LineString[] = "LineString";
+static char __pyx_k_MultiPoint[] = "MultiPoint";
+static char __pyx_k_ValueError[] = "ValueError";
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+static char __pyx_k_new_coords[] = "new_coords";
+static char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
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+static char __pyx_k_coordinates[] = "coordinates";
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+static char __pyx_k_DATELINEOFFSET[] = "DATELINEOFFSET";
+static char __pyx_k_transform_geom[] = "_transform_geom";
+static char __pyx_k_MultiLineString[] = "MultiLineString";
+static char __pyx_k_NullHandler_emit[] = "NullHandler.emit";
+static char __pyx_k_fiona__transform[] = "fiona._transform";
+static char __pyx_k_antimeridian_offset[] = "antimeridian_offset";
+static char __pyx_k_antimeridian_cutting[] = "antimeridian_cutting";
+static char __pyx_k_NULL_spatial_reference[] = "NULL spatial reference";
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+static PyObject *__pyx_n_s_LineString;
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+static PyObject *__pyx_n_s_MultiPoint;
+static PyObject *__pyx_n_s_MultiPolygon;
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+static PyObject *__pyx_n_s_NullHandler;
+static PyObject *__pyx_n_s_NullHandler_emit;
+static PyObject *__pyx_kp_s_PROJ_4_to_be_imported_r;
+static PyObject *__pyx_n_s_Point;
+static PyObject *__pyx_n_s_Polygon;
+static PyObject *__pyx_kp_s_Users_sean_code_Fiona_fiona__tr;
+static PyObject *__pyx_n_s_ValueError;
+static PyObject *__pyx_kp_s__3;
+static PyObject *__pyx_kp_s__5;
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+static PyObject *__pyx_n_s_antimeridian_cutting;
+static PyObject *__pyx_n_s_antimeridian_offset;
+static PyObject *__pyx_n_s_coordinates;
+static PyObject *__pyx_n_s_debug;
+static PyObject *__pyx_n_s_doc;
+static PyObject *__pyx_n_s_dst;
+static PyObject *__pyx_n_s_dst_crs;
+static PyObject *__pyx_n_s_dst_ogr_geom;
+static PyObject *__pyx_n_s_emit;
+static PyObject *__pyx_n_s_encode;
+static PyObject *__pyx_n_s_factory;
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+static PyObject *__pyx_n_s_g;
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+static PyObject *__pyx_n_s_key_c;
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+static PyObject *__pyx_n_s_logging;
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+static PyObject *__pyx_n_s_piece;
+static PyObject *__pyx_n_s_precision;
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+static PyObject *__pyx_n_s_proj_c;
+static PyObject *__pyx_n_s_pyx_vtable;
+static PyObject *__pyx_n_s_qualname;
+static PyObject *__pyx_n_s_range;
+static PyObject *__pyx_n_s_record;
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+static PyObject *__pyx_n_s_src;
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+static PyObject *__pyx_n_s_src_ogr_geom;
+static PyObject *__pyx_n_s_test;
+static PyObject *__pyx_n_s_transform;
+static PyObject *__pyx_n_s_transform_2;
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+static PyObject *__pyx_n_s_type;
+static PyObject *__pyx_n_s_upper;
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+static PyObject *__pyx_n_s_val_c;
+static PyObject *__pyx_n_s_wktext;
+static PyObject *__pyx_n_s_x;
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+static PyObject *__pyx_n_s_y;
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+}
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+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_Restore(type, value, tb);
+#endif
+}
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(type, value, tb);
+#endif
+}
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                if (PyObject_IsSubclass(instance_class, type)) {
+                    type = instance_class;
+                } else {
+                    instance_class = NULL;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+#if PY_VERSION_HEX >= 0x03030000
+    if (cause) {
+#else
+    if (cause && cause != Py_None) {
+#endif
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+static CYTHON_INLINE int __Pyx_IterFinish(void) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    PyObject* exc_type = tstate->curexc_type;
+    if (unlikely(exc_type)) {
+        if (likely(exc_type == PyExc_StopIteration) || PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration)) {
+            PyObject *exc_value, *exc_tb;
+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#endif
+}
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    } else {
+        return __Pyx_IterFinish();
+    }
+    return 0;
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject* args = PyTuple_Pack(1, arg);
+    return (likely(args)) ? __Pyx_PyObject_Call(func, args, NULL) : NULL;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+    if (s1 == s2) {
+        return (equals == Py_EQ);
+    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
+        const char *ps1, *ps2;
+        Py_ssize_t length = PyBytes_GET_SIZE(s1);
+        if (length != PyBytes_GET_SIZE(s2))
+            return (equals == Py_NE);
+        ps1 = PyBytes_AS_STRING(s1);
+        ps2 = PyBytes_AS_STRING(s2);
+        if (ps1[0] != ps2[0]) {
+            return (equals == Py_NE);
+        } else if (length == 1) {
+            return (equals == Py_EQ);
+        } else {
+            int result = memcmp(ps1, ps2, (size_t)length);
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
+        return (equals == Py_NE);
+    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
+        return (equals == Py_NE);
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+#endif
+}
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+#if PY_MAJOR_VERSION < 3
+    PyObject* owned_ref = NULL;
+#endif
+    int s1_is_unicode, s2_is_unicode;
+    if (s1 == s2) {
+        goto return_eq;
+    }
+    s1_is_unicode = PyUnicode_CheckExact(s1);
+    s2_is_unicode = PyUnicode_CheckExact(s2);
+#if PY_MAJOR_VERSION < 3
+    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
+        owned_ref = PyUnicode_FromObject(s2);
+        if (unlikely(!owned_ref))
+            return -1;
+        s2 = owned_ref;
+        s2_is_unicode = 1;
+    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
+        owned_ref = PyUnicode_FromObject(s1);
+        if (unlikely(!owned_ref))
+            return -1;
+        s1 = owned_ref;
+        s1_is_unicode = 1;
+    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
+        return __Pyx_PyBytes_Equals(s1, s2, equals);
+    }
+#endif
+    if (s1_is_unicode & s2_is_unicode) {
+        Py_ssize_t length;
+        int kind;
+        void *data1, *data2;
+        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
+            return -1;
+        length = __Pyx_PyUnicode_GET_LENGTH(s1);
+        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
+            goto return_ne;
+        }
+        kind = __Pyx_PyUnicode_KIND(s1);
+        if (kind != __Pyx_PyUnicode_KIND(s2)) {
+            goto return_ne;
+        }
+        data1 = __Pyx_PyUnicode_DATA(s1);
+        data2 = __Pyx_PyUnicode_DATA(s2);
+        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
+            goto return_ne;
+        } else if (length == 1) {
+            goto return_eq;
+        } else {
+            int result = memcmp(data1, data2, (size_t)(length * kind));
+            #if PY_MAJOR_VERSION < 3
+            Py_XDECREF(owned_ref);
+            #endif
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & s2_is_unicode) {
+        goto return_ne;
+    } else if ((s2 == Py_None) & s1_is_unicode) {
+        goto return_ne;
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+return_eq:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_EQ);
+return_ne:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_NE);
+#endif
+}
+
+#if !CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values) {
+    return PyObject_CallMethodObjArgs(sep, __pyx_n_s_join, values, NULL);
+}
+#endif
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON
+    result = PyDict_GetItem(__pyx_d, name);
+    if (likely(result)) {
+        Py_INCREF(result);
+    } else {
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    if (!result) {
+        PyErr_Clear();
+#endif
+        result = __Pyx_GetBuiltinName(name);
+    }
+    return result;
+}
+
+static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
+                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
+                                  int full_traceback) {
+    PyObject *old_exc, *old_val, *old_tb;
+    PyObject *ctx;
+    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
+    if (full_traceback) {
+        Py_XINCREF(old_exc);
+        Py_XINCREF(old_val);
+        Py_XINCREF(old_tb);
+        __Pyx_ErrRestore(old_exc, old_val, old_tb);
+        PyErr_PrintEx(1);
+    }
+    #if PY_MAJOR_VERSION < 3
+    ctx = PyString_FromString(name);
+    #else
+    ctx = PyUnicode_FromString(name);
+    #endif
+    __Pyx_ErrRestore(old_exc, old_val, old_tb);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyList_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyTuple_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely((n >= 0) & (n < PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely((n >= 0) & (n < PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return NULL;
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+static CYTHON_INLINE int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v) {
+    int r;
+    if (!j) return -1;
+    r = PyObject_SetItem(o, j, v);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v,
+                                               int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = (!wraparound) ? i : ((likely(i >= 0)) ? i : i + PyList_GET_SIZE(o));
+        if ((!boundscheck) || likely((n >= 0) & (n < PyList_GET_SIZE(o)))) {
+            PyObject* old = PyList_GET_ITEM(o, n);
+            Py_INCREF(v);
+            PyList_SET_ITEM(o, n, v);
+            Py_DECREF(old);
+            return 1;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_ass_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return -1;
+                }
+            }
+            return m->sq_ass_item(o, i, v);
+        }
+    }
+#else
+#if CYTHON_COMPILING_IN_PYPY
+    if (is_list || (PySequence_Check(o) && !PyDict_Check(o))) {
+#else
+    if (is_list || PySequence_Check(o)) {
+#endif
+        return PySequence_SetItem(o, i, v);
+    }
+#endif
+    return __Pyx_SetItemInt_Generic(o, PyInt_FromSsize_t(i), v);
+}
+
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname) {
+    PyErr_Format(PyExc_UnboundLocalError, "local variable '%s' referenced before assignment", varname);
+}
+
+static void* __Pyx_GetVtable(PyObject *dict) {
+    void* ptr;
+    PyObject *ob = PyObject_GetItem(dict, __pyx_n_s_pyx_vtable);
+    if (!ob)
+        goto bad;
+#if PY_VERSION_HEX >= 0x02070000
+    ptr = PyCapsule_GetPointer(ob, 0);
+#else
+    ptr = PyCObject_AsVoidPtr(ob);
+#endif
+    if (!ptr && !PyErr_Occurred())
+        PyErr_SetString(PyExc_RuntimeError, "invalid vtable found for imported type");
+    Py_DECREF(ob);
+    return ptr;
+bad:
+    Py_XDECREF(ob);
+    return NULL;
+}
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases) {
+    Py_ssize_t i, nbases = PyTuple_GET_SIZE(bases);
+    for (i=0; i < nbases; i++) {
+        PyTypeObject *tmptype;
+        PyObject *tmp = PyTuple_GET_ITEM(bases, i);
+        tmptype = Py_TYPE(tmp);
+#if PY_MAJOR_VERSION < 3
+        if (tmptype == &PyClass_Type)
+            continue;
+#endif
+        if (!metaclass) {
+            metaclass = tmptype;
+            continue;
+        }
+        if (PyType_IsSubtype(metaclass, tmptype))
+            continue;
+        if (PyType_IsSubtype(tmptype, metaclass)) {
+            metaclass = tmptype;
+            continue;
+        }
+        PyErr_SetString(PyExc_TypeError,
+                        "metaclass conflict: "
+                        "the metaclass of a derived class "
+                        "must be a (non-strict) subclass "
+                        "of the metaclasses of all its bases");
+        return NULL;
+    }
+    if (!metaclass) {
+#if PY_MAJOR_VERSION < 3
+        metaclass = &PyClass_Type;
+#else
+        metaclass = &PyType_Type;
+#endif
+    }
+    Py_INCREF((PyObject*) metaclass);
+    return (PyObject*) metaclass;
+}
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* fake_module;
+    PyTypeObject* cached_type = NULL;
+    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
+    if (!fake_module) return NULL;
+    Py_INCREF(fake_module);
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
+    if (cached_type) {
+        if (!PyType_Check((PyObject*)cached_type)) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s is not a type object",
+                type->tp_name);
+            goto bad;
+        }
+        if (cached_type->tp_basicsize != type->tp_basicsize) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s has the wrong size, try recompiling",
+                type->tp_name);
+            goto bad;
+        }
+    } else {
+        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+        PyErr_Clear();
+        if (PyType_Ready(type) < 0) goto bad;
+        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
+            goto bad;
+        Py_INCREF(type);
+        cached_type = type;
+    }
+done:
+    Py_DECREF(fake_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
+}
+
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (unlikely(op->func_doc == NULL)) {
+        if (op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    op->func_doc = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_name == NULL)) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+        if (unlikely(op->func_name == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_qualname;
+    Py_INCREF(value);
+    op->func_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    Py_DECREF(res);
+    return 0;
+}
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyTuple_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_tuple;
+    op->defaults_tuple = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_tuple;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_kwdict;
+    op->defaults_kwdict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_kwdict;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    tmp = op->func_annotations;
+    op->func_annotations = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->func_annotations;
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+#ifndef PY_WRITE_RESTRICTED
+#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
+#endif
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyMem_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return PyMethod_New(func,
+                            type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
+#endif
+}
+#if CYTHON_COMPILING_IN_PYPY
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    Py_ssize_t size;
+    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 0)
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 1)
+                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+#else
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#endif
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_Call,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+#else
+    offsetof(PyCFunctionObject, m_weakreflist),
+#endif
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_CyFunction_descr_get,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#endif
+};
+static int __Pyx_CyFunction_init(void) {
+#if !CYTHON_COMPILING_IN_PYPY
+    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
+#endif
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+    if (__pyx_CyFunctionType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyMem_Malloc(size);
+    if (!m->defaults)
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name,
+                                           PyObject *qualname, PyObject *mkw, PyObject *modname, PyObject *doc) {
+    PyObject *ns;
+    if (metaclass) {
+        PyObject *prep = __Pyx_PyObject_GetAttrStr(metaclass, __pyx_n_s_prepare);
+        if (prep) {
+            PyObject *pargs = PyTuple_Pack(2, name, bases);
+            if (unlikely(!pargs)) {
+                Py_DECREF(prep);
+                return NULL;
+            }
+            ns = PyObject_Call(prep, pargs, mkw);
+            Py_DECREF(prep);
+            Py_DECREF(pargs);
+        } else {
+            if (unlikely(!PyErr_ExceptionMatches(PyExc_AttributeError)))
+                return NULL;
+            PyErr_Clear();
+            ns = PyDict_New();
+        }
+    } else {
+        ns = PyDict_New();
+    }
+    if (unlikely(!ns))
+        return NULL;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_module, modname) < 0)) goto bad;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_qualname, qualname) < 0)) goto bad;
+    if (unlikely(doc && PyObject_SetItem(ns, __pyx_n_s_doc, doc) < 0)) goto bad;
+    return ns;
+bad:
+    Py_DECREF(ns);
+    return NULL;
+}
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases,
+                                      PyObject *dict, PyObject *mkw,
+                                      int calculate_metaclass, int allow_py2_metaclass) {
+    PyObject *result, *margs;
+    PyObject *owned_metaclass = NULL;
+    if (allow_py2_metaclass) {
+        owned_metaclass = PyObject_GetItem(dict, __pyx_n_s_metaclass);
+        if (owned_metaclass) {
+            metaclass = owned_metaclass;
+        } else if (likely(PyErr_ExceptionMatches(PyExc_KeyError))) {
+            PyErr_Clear();
+        } else {
+            return NULL;
+        }
+    }
+    if (calculate_metaclass && (!metaclass || PyType_Check(metaclass))) {
+        metaclass = __Pyx_CalculateMetaclass((PyTypeObject*) metaclass, bases);
+        Py_XDECREF(owned_metaclass);
+        if (unlikely(!metaclass))
+            return NULL;
+        owned_metaclass = metaclass;
+    }
+    margs = PyTuple_Pack(3, name, bases, dict);
+    if (unlikely(!margs)) {
+        result = NULL;
+    } else {
+        result = PyObject_Call(metaclass, margs, mkw);
+        Py_DECREF(margs);
+    }
+    Py_XDECREF(owned_metaclass);
+    return result;
+}
+
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = (start + end) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        PyThreadState_GET(), /*PyThreadState *tstate,*/
+        py_code,             /*PyCodeObject *code,*/
+        __pyx_d,      /*PyObject *globals,*/
+        0                    /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    py_frame->f_lineno = py_line;
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_VERSION_HEX < 0x03030000
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.')) {
+                #if PY_VERSION_HEX < 0x03030000
+                PyObject *py_level = PyInt_FromLong(1);
+                if (!py_level)
+                    goto bad;
+                module = PyObject_CallFunctionObjArgs(py_import,
+                    name, global_dict, empty_dict, list, py_level, NULL);
+                Py_DECREF(py_level);
+                #else
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                #endif
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_VERSION_HEX < 0x03030000
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_VERSION_HEX < 0x03030000
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
+    {                                                                     \
+        func_type value = func_value;                                     \
+        if (sizeof(target_type) < sizeof(func_type)) {                    \
+            if (unlikely(value != (func_type) (target_type) value)) {     \
+                func_type zero = 0;                                       \
+                if (is_unsigned && unlikely(value < zero))                \
+                    goto raise_neg_overflow;                              \
+                else                                                      \
+                    goto raise_overflow;                                  \
+            }                                                             \
+        }                                                                 \
+        return (target_type) value;                                       \
+    }
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+ #endif
+#endif
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
+            } else if (sizeof(int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *x) {
+    const size_t neg_one = (size_t) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(size_t) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(size_t, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (size_t) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(size_t, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(size_t) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(size_t) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(size_t,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(size_t, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(size_t) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, long, PyLong_AsLong(x))
+            } else if (sizeof(size_t) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(size_t, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            size_t val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (size_t) -1;
+        }
+    } else {
+        size_t val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (size_t) -1;
+        val = __Pyx_PyInt_As_size_t(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to size_t");
+    return (size_t) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to size_t");
+    return (size_t) -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(long) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
+            } else if (sizeof(long) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+#ifndef __PYX_HAVE_RT_ImportModule
+#define __PYX_HAVE_RT_ImportModule
+static PyObject *__Pyx_ImportModule(const char *name) {
+    PyObject *py_name = 0;
+    PyObject *py_module = 0;
+    py_name = __Pyx_PyIdentifier_FromString(name);
+    if (!py_name)
+        goto bad;
+    py_module = PyImport_Import(py_name);
+    Py_DECREF(py_name);
+    return py_module;
+bad:
+    Py_XDECREF(py_name);
+    return 0;
+}
+#endif
+
+#ifndef __PYX_HAVE_RT_ImportType
+#define __PYX_HAVE_RT_ImportType
+static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name,
+    size_t size, int strict)
+{
+    PyObject *py_module = 0;
+    PyObject *result = 0;
+    PyObject *py_name = 0;
+    char warning[200];
+    Py_ssize_t basicsize;
+#ifdef Py_LIMITED_API
+    PyObject *py_basicsize;
+#endif
+    py_module = __Pyx_ImportModule(module_name);
+    if (!py_module)
+        goto bad;
+    py_name = __Pyx_PyIdentifier_FromString(class_name);
+    if (!py_name)
+        goto bad;
+    result = PyObject_GetAttr(py_module, py_name);
+    Py_DECREF(py_name);
+    py_name = 0;
+    Py_DECREF(py_module);
+    py_module = 0;
+    if (!result)
+        goto bad;
+    if (!PyType_Check(result)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s.%.200s is not a type object",
+            module_name, class_name);
+        goto bad;
+    }
+#ifndef Py_LIMITED_API
+    basicsize = ((PyTypeObject *)result)->tp_basicsize;
+#else
+    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
+    if (!py_basicsize)
+        goto bad;
+    basicsize = PyLong_AsSsize_t(py_basicsize);
+    Py_DECREF(py_basicsize);
+    py_basicsize = 0;
+    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
+        goto bad;
+#endif
+    if (!strict && (size_t)basicsize > size) {
+        PyOS_snprintf(warning, sizeof(warning),
+            "%s.%s size changed, may indicate binary incompatibility",
+            module_name, class_name);
+        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
+    }
+    else if ((size_t)basicsize != size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s has the wrong size, try recompiling",
+            module_name, class_name);
+        goto bad;
+    }
+    return (PyTypeObject *)result;
+bad:
+    Py_XDECREF(py_module);
+    Py_XDECREF(result);
+    return NULL;
+}
+#endif
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+#if PY_VERSION_HEX < 0x03030000
+        char* defenc_c;
+        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+        if (!defenc) return NULL;
+        defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        {
+            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+            char* c;
+            for (c = defenc_c; c < end; c++) {
+                if ((unsigned char) (*c) >= 128) {
+                    PyUnicode_AsASCIIString(o);
+                    return NULL;
+                }
+            }
+        }
+#endif
+        *length = PyBytes_GET_SIZE(defenc);
+        return defenc_c;
+#else
+        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        if (PyUnicode_IS_ASCII(o)) {
+            *length = PyUnicode_GET_LENGTH(o);
+            return PyUnicode_AsUTF8(o);
+        } else {
+            PyUnicode_AsASCIIString(o);
+            return NULL;
+        }
+#else
+        return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+#endif
+    } else
+#endif
+#if !CYTHON_COMPILING_IN_PYPY
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+  PyNumberMethods *m;
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (PyInt_Check(x) || PyLong_Check(x))
+#else
+  if (PyLong_Check(x))
+#endif
+    return Py_INCREF(x), x;
+  m = Py_TYPE(x)->tp_as_number;
+#if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = PyNumber_Long(x);
+  }
+#else
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Long(x);
+  }
+#endif
+  if (res) {
+#if PY_MAJOR_VERSION < 3
+    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+#else
+    if (!PyLong_Check(res)) {
+#endif
+      PyErr_Format(PyExc_TypeError,
+                   "__%.4s__ returned non-%.4s (type %.200s)",
+                   name, name, Py_TYPE(res)->tp_name);
+      Py_DECREF(res);
+      return NULL;
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b)))
+      return PyInt_AS_LONG(b);
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+     #if CYTHON_USE_PYLONG_INTERNALS
+       switch (Py_SIZE(b)) {
+       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
+       case  0: return 0;
+       case  1: return ((PyLongObject*)b)->ob_digit[0];
+       }
+     #endif
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/fiona/collection.py b/fiona/collection.py
new file mode 100644
index 0000000..9d212cd
--- /dev/null
+++ b/fiona/collection.py
@@ -0,0 +1,530 @@
+# -*- coding: utf-8 -*-
+# Collections provide file-like access to feature data
+
+import os
+import sys
+
+from fiona.ogrext import Iterator, ItemsIterator, KeysIterator
+from fiona.ogrext import Session, WritingSession
+from fiona.ogrext import calc_gdal_version_num, get_gdal_version_num, get_gdal_release_name
+from fiona.errors import DriverError, SchemaError, CRSError
+from fiona._drivers import driver_count, GDALEnv
+from six import string_types
+
+class Collection(object):
+
+    """A file-like interface to features in the form of GeoJSON-like
+    mappings."""
+
+    def __init__(
+            self, path, mode='r', 
+            driver=None, schema=None, crs=None, 
+            encoding=None,
+            layer=None,
+            vsi=None,
+            archive=None,
+            **kwargs):
+        
+        """The required ``path`` is the absolute or relative path to
+        a file, such as '/data/test_uk.shp'. In ``mode`` 'r', data can
+        be read only. In ``mode`` 'a', data can be appended to a file.
+        In ``mode`` 'w', data overwrites the existing contents of
+        a file.
+        
+        In ``mode`` 'w', an OGR ``driver`` name and a ``schema`` are
+        required. A Proj4 ``crs`` string is recommended.
+        
+        In 'w' mode, kwargs will be mapped to OGR layer creation
+        options.
+        """
+
+        if not isinstance(path, string_types):
+            raise TypeError("invalid path: %r" % path)
+        if not isinstance(mode, string_types) or mode not in ('r', 'w', 'a'):
+            raise TypeError("invalid mode: %r" % mode)
+        if driver and not isinstance(driver, string_types):
+            raise TypeError("invalid driver: %r" % driver)
+        if schema and not hasattr(schema, 'get'):
+            raise TypeError("invalid schema: %r" % schema)
+        if crs and not isinstance(crs, (dict,) + string_types):
+            raise TypeError("invalid crs: %r" % crs)
+        if encoding and not isinstance(encoding, string_types):
+            raise TypeError("invalid encoding: %r" % encoding)
+        if layer and not isinstance(layer, tuple(list(string_types) + [int])):
+            raise TypeError("invalid name: %r" % layer)
+        if vsi:
+            if not isinstance(vsi, string_types) or vsi not in ('zip', 'tar', 'gzip'):
+                raise TypeError("invalid vsi: %r" % vsi)
+        if archive and not isinstance(archive, string_types):
+            raise TypeError("invalid archive: %r" % archive)
+
+        # Check GDAL version against drivers
+        if driver == "GPKG" and get_gdal_version_num() < calc_gdal_version_num(1, 11, 0):
+            raise DriverError(
+                    "GPKG driver requires GDAL 1.11.0, fiona was compiled against: {}".format(get_gdal_release_name()))
+
+        self.session = None
+        self.iterator = None
+        self._len = 0
+        self._bounds = None
+        self._driver = None
+        self._schema = None
+        self._crs = None
+        self.env = None
+        
+        self.path = vsi_path(path, vsi, archive)
+        
+        if mode == 'w':
+            if layer and not isinstance(layer, string_types):
+                raise ValueError("in 'r' mode, layer names must be strings")
+            if driver == 'GeoJSON':
+                if layer is not None:
+                    raise ValueError("the GeoJSON format does not have layers")
+                self.name = 'OgrGeoJSON'
+            # TODO: raise ValueError as above for other single-layer formats.
+            else:
+                self.name = layer or os.path.basename(os.path.splitext(path)[0])
+        else:
+            if layer in (0, None):
+                self.name = 0
+            else:
+                self.name = layer or os.path.basename(os.path.splitext(path)[0])
+        
+        self.mode = mode
+        
+        if self.mode == 'w':
+            if driver == 'Shapefile':
+                driver = 'ESRI Shapefile'
+            if not driver:
+                raise DriverError("no driver")
+            elif driver not in supported_drivers:
+                raise DriverError(
+                    "unsupported driver: %r" % driver)
+            elif self.mode not in supported_drivers[driver]:
+                raise DriverError(
+                    "unsupported mode: %r" % self.mode)
+            self._driver = driver
+            
+            if not schema:
+                raise SchemaError("no schema")
+            elif 'properties' not in schema:
+                raise SchemaError("schema lacks: properties")
+            elif 'geometry' not in schema:
+                raise SchemaError("schema lacks: geometry")
+            self._schema = schema
+            
+            if crs:
+                if 'init' in crs or 'proj' in crs or 'epsg' in crs.lower():
+                    self._crs = crs
+                else:
+                    raise CRSError("crs lacks init or proj parameter")
+        
+        if driver_count == 0:
+            # create a local manager and enter
+            self.env = GDALEnv(True)
+        else:
+            self.env = GDALEnv(False)
+        self.env.__enter__()
+
+        if self.mode == "r":
+            self.encoding = encoding
+            self.session = Session()
+            self.session.start(self)
+            
+            # If encoding param is None, we'll use what the session
+            # suggests.
+            self.encoding = encoding or self.session.get_fileencoding().lower()
+
+        elif self.mode in ("a", "w"):
+            self.encoding = encoding
+            self.session = WritingSession()
+            self.session.start(self, **kwargs)
+            self.encoding = encoding or self.session.get_fileencoding().lower()
+
+        if self.session:
+            self.guard_driver_mode()
+
+    def __repr__(self):
+        return "<%s Collection '%s', mode '%s' at %s>" % (
+            self.closed and "closed" or "open",
+            self.path + ":" + str(self.name),
+            self.mode,
+            hex(id(self)))
+
+    def guard_driver_mode(self):
+        driver = self.session.get_driver()
+        if driver not in supported_drivers:
+            raise DriverError("unsupported driver: %r" % driver)
+        if self.mode not in supported_drivers[driver]:
+            raise DriverError("unsupported mode: %r" % self.mode)
+
+    @property
+    def driver(self):
+        """Returns the name of the proper OGR driver."""
+        if not self._driver and self.mode in ("a", "r") and self.session:
+            self._driver = self.session.get_driver()
+        return self._driver
+
+    @property 
+    def schema(self):
+        """Returns a mapping describing the data schema.
+        
+        The mapping has 'geometry' and 'properties' items. The former is a
+        string such as 'Point' and the latter is an ordered mapping that
+        follows the order of fields in the data file.
+        """
+        if not self._schema and self.mode in ("a", "r") and self.session:
+            self._schema = self.session.get_schema()
+        return self._schema
+
+    @property
+    def crs(self):
+        """Returns a Proj4 string."""
+        if self._crs is None and self.mode in ("a", "r") and self.session:
+            self._crs = self.session.get_crs()
+        return self._crs
+
+    @property
+    def meta(self):
+        """Returns a mapping with the driver, schema, and crs properties."""
+        return {
+            'driver': self.driver, 
+            'schema': self.schema, 
+            'crs': self.crs }
+
+    def filter(self, *args, **kwds):
+        """Returns an iterator over records, but filtered by a test for
+        spatial intersection with the provided ``bbox``, a (minx, miny,
+        maxx, maxy) tuple or a geometry ``mask``.
+        
+        Positional arguments ``stop`` or ``start, stop[, step]`` allows
+        iteration to skip over items or stop at a specific item.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed collection")
+        elif self.mode != 'r':
+            raise IOError("collection not open for reading")
+        if args:
+            s = slice(*args)
+            start = s.start
+            stop = s.stop
+            step = s.step
+        else:
+            start = stop = step = None
+        bbox = kwds.get('bbox')
+        mask = kwds.get('mask')
+        if bbox and mask:
+            raise ValueError("mask and bbox can not be set together")
+        self.iterator = Iterator(
+            self, start, stop, step, bbox, mask)
+        return self.iterator
+
+    def items(self, *args, **kwds):
+        """Returns an iterator over FID, record pairs, optionally 
+        filtered by a test for spatial intersection with the provided
+        ``bbox``, a (minx, miny, maxx, maxy) tuple or a geometry
+        ``mask``.
+        
+        Positional arguments ``stop`` or ``start, stop[, step]`` allows
+        iteration to skip over items or stop at a specific item.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed collection")
+        elif self.mode != 'r':
+            raise IOError("collection not open for reading")
+        if args:
+            s = slice(*args)
+            start = s.start
+            stop = s.stop
+            step = s.step
+        else:
+            start = stop = step = None
+        bbox = kwds.get('bbox')
+        mask = kwds.get('mask')
+        if bbox and mask:
+            raise ValueError("mask and bbox can not be set together")
+        self.iterator = ItemsIterator(
+            self, start, stop, step, bbox, mask)
+        return self.iterator
+
+    def keys(self, *args, **kwds):
+        """Returns an iterator over FIDs, optionally 
+        filtered by a test for spatial intersection with the provided
+        ``bbox``, a (minx, miny, maxx, maxy) tuple or a geometry 
+        ``mask``.
+
+        Positional arguments ``stop`` or ``start, stop[, step]`` allows
+        iteration to skip over items or stop at a specific item.
+        """
+        if self.closed:
+            raise ValueError("I/O operation on closed collection")
+        elif self.mode != 'r':
+            raise IOError("collection not open for reading")
+        if args:
+            s = slice(*args)
+            start = s.start
+            stop = s.stop
+            step = s.step
+        else:
+            start = stop = step = None
+        bbox = kwds.get('bbox')
+        mask = kwds.get('mask')
+        if bbox and mask:
+            raise ValueError("mask and bbox can not be set together")
+        self.iterator = KeysIterator(
+            self, start, stop, step, bbox, mask)
+        return self.iterator
+
+    def __contains__(self, fid):
+        return self.session.has_feature(fid)
+
+    values = filter
+
+    def __iter__(self):
+        """Returns an iterator over records."""
+        return self.filter()
+
+    def __next__(self):
+        """Returns next record from iterator."""
+        if not self.iterator:
+            iter(self)
+        return next(self.iterator)
+
+    next = __next__
+
+    def __getitem__(self, item):
+        return self.session.__getitem__(item)
+
+    def writerecords(self, records):
+        """Stages multiple records for writing to disk."""
+        if self.closed:
+            raise ValueError("I/O operation on closed collection")
+        if self.mode not in ('a', 'w'):
+            raise IOError("collection not open for writing")
+        self.session.writerecs(records, self)
+        self._len = self.session.get_length()
+        self._bounds = self.session.get_extent()
+
+    def write(self, record):
+        """Stages a record for writing to disk."""
+        self.writerecords([record])
+
+    def validate_record(self, record):
+        """Compares the record to the collection's schema.
+
+        Returns ``True`` if the record matches, else ``False``.
+        """
+        # Currently we only compare keys of properties, not the types of
+        # values.
+        return set(record['properties'].keys()
+            ) == set(self.schema['properties'].keys()
+            ) and self.validate_record_geometry(record)
+
+    def validate_record_geometry(self, record):
+        """Compares the record's geometry to the collection's schema.
+
+        Returns ``True`` if the record matches, else ``False``.
+        """
+        # Shapefiles welcome mixes of line/multis and polygon/multis.
+        # OGR reports these mixed files as type "Polygon" or "LineString"
+        # but will return either these or their multi counterparts when 
+        # reading features.
+        if (self.driver == "ESRI Shapefile" and 
+                "Point" not in record['geometry']['type']):
+            return record['geometry']['type'].lstrip(
+                "Multi") == self.schema['geometry'].lstrip("3D ").lstrip(
+                    "Multi")
+        else:
+            return (record['geometry']['type'] ==
+                self.schema['geometry'].lstrip("3D "))
+
+    def __len__(self):
+        if self._len <= 0 and self.session is not None:
+            self._len = self.session.get_length()
+        return self._len
+
+    @property
+    def bounds(self):
+        """Returns (minx, miny, maxx, maxy)."""
+        if self._bounds is None and self.session is not None:
+            self._bounds = self.session.get_extent()
+        return self._bounds
+
+    def flush(self):
+        """Flush the buffer."""
+        if self.session is not None and self.session.get_length() > 0:
+            self.session.sync(self)
+            new_len = self.session.get_length()
+            self._len = new_len > self._len and new_len or self._len
+            self._bounds = self.session.get_extent()
+
+    def close(self):
+        """In append or write mode, flushes data to disk, then ends
+        access."""
+        if self.session is not None: 
+            if self.mode in ('a', 'w'):
+                self.flush()
+            self.session.stop()
+            self.session = None
+            self.iterator = None
+        if self.env:
+            self.env.__exit__()
+
+    @property
+    def closed(self):
+        """``False`` if data can be accessed, otherwise ``True``."""
+        return self.session is None
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        self.close()
+
+    def __del__(self):
+        # Note: you can't count on this being called. Call close() explicitly
+        # or use the context manager protocol ("with").
+        self.__exit__(None, None, None)
+
+
+def vsi_path(path, vsi=None, archive=None):
+    # If a VSF and archive file are specified, we convert the path to
+    # an OGR VSI path (see cpl_vsi.h).
+    if vsi:
+        if archive:
+            result = "/vsi%s/%s%s" % (vsi, archive, path)
+        else:
+            result = "/vsi%s/%s" % (vsi, path)
+    else:
+        result = path
+    return result
+
+
+# Here is the list of available drivers as (name, modes) tuples. Currently,
+# we only expose the defaults (excepting FileGDB). We also don't expose
+# the CSV or GeoJSON drivers. Use Python's csv and json modules instead.
+# Might still exclude a few more of these after making a pass through the
+# entries for each at http://www.gdal.org/ogr/ogr_formats.html to screen
+# out the multi-layer formats.
+
+supported_drivers = dict([
+#OGR Vector Formats
+#Format Name 	Code 	Creation 	Georeferencing 	Compiled by default
+#Aeronav FAA files 	AeronavFAA 	No 	Yes 	Yes
+    ("AeronavFAA", "r"),
+#ESRI ArcObjects 	ArcObjects 	No 	Yes 	No, needs ESRI ArcObjects
+#Arc/Info Binary Coverage 	AVCBin 	No 	Yes 	Yes
+# multi-layer
+#   ("AVCBin", "r"),
+#Arc/Info .E00 (ASCII) Coverage 	AVCE00 	No 	Yes 	Yes
+# multi-layer
+#    ("AVCE00", "r"),
+#Arc/Info Generate 	ARCGEN 	No 	No 	Yes
+    ("ARCGEN", "r"),
+#Atlas BNA 	BNA 	Yes 	No 	Yes
+    ("BNA", "raw"),
+#AutoCAD DWG 	DWG 	No 	No 	No
+#AutoCAD DXF 	DXF 	Yes 	No 	Yes
+    ("DXF", "raw"),
+#Comma Separated Value (.csv) 	CSV 	Yes 	No 	Yes
+#CouchDB / GeoCouch 	CouchDB 	Yes 	Yes 	No, needs libcurl
+#DODS/OPeNDAP 	DODS 	No 	Yes 	No, needs libdap
+#EDIGEO 	EDIGEO 	No 	Yes 	Yes
+# multi-layer? Hard to tell from the OGR docs
+#   ("EDIGEO", "r"),
+#ElasticSearch 	ElasticSearch 	Yes (write-only) 	- 	No, needs libcurl
+#ESRI FileGDB 	FileGDB 	Yes 	Yes 	No, needs FileGDB API library
+# multi-layer
+    ("FileGDB", "raw"),
+#ESRI Personal GeoDatabase 	PGeo 	No 	Yes 	No, needs ODBC library
+#ESRI ArcSDE 	SDE 	No 	Yes 	No, needs ESRI SDE
+#ESRI Shapefile 	ESRI Shapefile 	Yes 	Yes 	Yes
+    ("ESRI Shapefile", "raw"),
+#FMEObjects Gateway 	FMEObjects Gateway 	No 	Yes 	No, needs FME
+#GeoJSON 	GeoJSON 	Yes 	Yes 	Yes
+    ("GeoJSON", "rw"),
+#Géoconcept Export 	Geoconcept 	Yes 	Yes 	Yes
+# multi-layers
+#   ("Geoconcept", "raw"),
+#Geomedia .mdb 	Geomedia 	No 	No 	No, needs ODBC library
+#GeoPackage	GPKG	Yes	Yes	No, needs libsqlite3
+    ("GPKG", "rw"),
+#GeoRSS 	GeoRSS 	Yes 	Yes 	Yes (read support needs libexpat)
+#Google Fusion Tables 	GFT 	Yes 	Yes 	No, needs libcurl
+#GML 	GML 	Yes 	Yes 	Yes (read support needs Xerces or libexpat)
+#GMT 	GMT 	Yes 	Yes 	Yes
+    ("GMT", "raw"),
+#GPSBabel 	GPSBabel 	Yes 	Yes 	Yes (needs GPSBabel and GPX driver)
+#GPX 	GPX 	Yes 	Yes 	Yes (read support needs libexpat)
+    ("GPX", "raw"),
+#GRASS 	GRASS 	No 	Yes 	No, needs libgrass
+#GPSTrackMaker (.gtm, .gtz) 	GPSTrackMaker 	Yes 	Yes 	Yes
+    ("GPSTrackMaker", "raw"),
+#Hydrographic Transfer Format 	HTF 	No 	Yes 	Yes
+# TODO: Fiona is not ready for multi-layer formats: ("HTF", "r"),
+#Idrisi Vector (.VCT) 	Idrisi 	No 	Yes 	Yes
+    ("Idrisi", "r"),
+#Informix DataBlade 	IDB 	Yes 	Yes 	No, needs Informix DataBlade
+#INTERLIS 	"Interlis 1" and "Interlis 2" 	Yes 	Yes 	No, needs Xerces (INTERLIS model reading needs ili2c.jar)
+#INGRES 	INGRES 	Yes 	No 	No, needs INGRESS
+#KML 	KML 	Yes 	Yes 	Yes (read support needs libexpat)
+#LIBKML 	LIBKML 	Yes 	Yes 	No, needs libkml
+#Mapinfo File 	MapInfo File 	Yes 	Yes 	Yes
+    ("MapInfo File", "raw"),
+#Microstation DGN 	DGN 	Yes 	No 	Yes
+    ("DGN", "raw"),
+#Access MDB (PGeo and Geomedia capable) 	MDB 	No 	Yes 	No, needs JDK/JRE
+#Memory 	Memory 	Yes 	Yes 	Yes
+#MySQL 	MySQL 	No 	Yes 	No, needs MySQL library
+#NAS - ALKIS 	NAS 	No 	Yes 	No, needs Xerces
+#Oracle Spatial 	OCI 	Yes 	Yes 	No, needs OCI library
+#ODBC 	ODBC 	No 	Yes 	No, needs ODBC library
+#MS SQL Spatial 	MSSQLSpatial 	Yes 	Yes 	No, needs ODBC library
+#Open Document Spreadsheet 	ODS 	Yes 	No 	No, needs libexpat
+#OGDI Vectors (VPF, VMAP, DCW) 	OGDI 	No 	Yes 	No, needs OGDI library
+#OpenAir 	OpenAir 	No 	Yes 	Yes
+# multi-layer
+#   ("OpenAir", "r"),
+#PCI Geomatics Database File 	PCIDSK 	No 	No 	Yes, using internal PCIDSK SDK (from GDAL 1.7.0)
+    ("PCIDSK", "r"),
+#PDS 	PDS 	No 	Yes 	Yes
+    ("PDS", "r"),
+#PGDump 	PostgreSQL SQL dump 	Yes 	Yes 	Yes
+#PostgreSQL/PostGIS 	PostgreSQL/PostGIS 	Yes 	Yes 	No, needs PostgreSQL client library (libpq)
+#EPIInfo .REC 	REC 	No 	No 	Yes
+#S-57 (ENC) 	S57 	No 	Yes 	Yes
+# multi-layer
+#   ("S57", "r"),
+#SDTS 	SDTS 	No 	Yes 	Yes
+# multi-layer
+#   ("SDTS", "r"),
+#SEG-P1 / UKOOA P1/90 	SEGUKOOA 	No 	Yes 	Yes
+# multi-layers
+#   ("SEGUKOOA", "r"),
+#SEG-Y 	SEGY 	No 	No 	Yes
+    ("SEGY", "r"),
+#Norwegian SOSI Standard 	SOSI 	No 	Yes 	No, needs FYBA library
+#SQLite/SpatiaLite 	SQLite 	Yes 	Yes 	No, needs libsqlite3 or libspatialite
+#SUA 	SUA 	No 	Yes 	Yes
+    ("SUA", "r"),
+#SVG 	SVG 	No 	Yes 	No, needs libexpat
+#UK .NTF 	UK. NTF 	No 	Yes 	Yes
+# multi-layer
+#   ("UK. NTF", "r"),
+#U.S. Census TIGER/Line 	TIGER 	No 	Yes 	Yes
+# multi-layer
+#   ("TIGER", "r"),
+#VFK data 	VFK 	No 	Yes 	Yes
+# multi-layer
+#   ("VFK", "r"),
+#VRT - Virtual Datasource 	VRT 	No 	Yes 	Yes
+# multi-layer
+#   ("VRT", "r"),
+#OGC WFS (Web Feature Service) 	WFS 	Yes 	Yes 	No, needs libcurl
+#MS Excel format 	XLS 	No 	No 	No, needs libfreexl
+#Office Open XML spreadsheet 	XLSX 	Yes 	No 	No, needs libexpat
+#X-Plane/Flighgear aeronautical data 	XPLANE 	No 	Yes 	Yes
+# multi-layer
+#   ("XPLANE", "r") 
+])
+
diff --git a/fiona/crs.py b/fiona/crs.py
new file mode 100644
index 0000000..1def3bc
--- /dev/null
+++ b/fiona/crs.py
@@ -0,0 +1,182 @@
+# Coordinate reference systems and functions.
+#
+# PROJ.4 is the law of this land: http://proj.osgeo.org/. But whereas PROJ.4
+# coordinate reference systems are described by strings of parameters such as
+#
+#   +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
+#
+# here we use mappings:
+#
+#   {'proj': 'longlat', 'ellps': 'WGS84', 'datum': 'WGS84', 'no_defs': True}
+#
+
+from six import string_types
+
+def to_string(crs):
+    """Turn a parameter mapping into a more conventional PROJ.4 string.
+
+    Mapping keys are tested against the ``all_proj_keys`` list. Values of
+    ``True`` are omitted, leaving the key bare: {'no_defs': True} -> "+no_defs"
+    and items where the value is otherwise not a str, int, or float are
+    omitted.
+    """
+    items = []
+    for k, v in sorted(filter(
+            lambda x: x[0] in all_proj_keys and x[1] is not False and (
+                isinstance(x[1], (bool, int, float)) or 
+                isinstance(x[1], string_types)),
+            crs.items() )):
+        items.append(
+            "+" + "=".join(
+                map(str, filter(
+                    lambda y: (y or y == 0) and y is not True, (k, v)))) )
+    return " ".join(items)
+
+def from_string(prjs):
+    """Turn a PROJ.4 string into a mapping of parameters.
+
+    Bare parameters like "+no_defs" are given a value of ``True``. All keys
+    are checked against the ``all_proj_keys`` list.
+    """
+    parts = [o.lstrip('+') for o in prjs.strip().split()]
+    def parse(v):
+        try:
+            return int(v)
+        except ValueError:
+            pass
+        try:
+            return float(v)
+        except ValueError:
+            return v
+    items = map(
+        lambda kv: len(kv) == 2 and (kv[0], parse(kv[1])) or (kv[0], True),
+        (p.split('=') for p in parts) )
+    return dict((k,v) for k, v in items if k in all_proj_keys)
+
+def from_epsg(code):
+    """Given an integer code, returns an EPSG-like mapping.
+
+    Note: the input code is not validated against an EPSG database.
+    """
+    if int(code) <= 0:
+        raise ValueError("EPSG codes are positive integers")
+    return {'init': "epsg:%s" % code, 'no_defs': True}
+
+
+# Below is the big list of PROJ4 parameters from
+# http://trac.osgeo.org/proj/wiki/GenParms.
+# It is parsed into a list of paramter keys ``all_proj_keys``.
+
+_param_data = """
++a         Semimajor radius of the ellipsoid axis
++alpha     ? Used with Oblique Mercator and possibly a few others
++axis      Axis orientation (new in 4.8.0)
++b         Semiminor radius of the ellipsoid axis
++datum     Datum name (see `proj -ld`)
++ellps     Ellipsoid name (see `proj -le`)
++init      Initialize from a named CRS
++k         Scaling factor (old name)
++k_0       Scaling factor (new name)
++lat_0     Latitude of origin
++lat_1     Latitude of first standard parallel
++lat_2     Latitude of second standard parallel
++lat_ts    Latitude of true scale
++lon_0     Central meridian
++lonc      ? Longitude used with Oblique Mercator and possibly a few others
++lon_wrap  Center longitude to use for wrapping (see below)
++nadgrids  Filename of NTv2 grid file to use for datum transforms (see below)
++no_defs   Don't use the /usr/share/proj/proj_def.dat defaults file
++over      Allow longitude output outside -180 to 180 range, disables wrapping (see below)
++pm        Alternate prime meridian (typically a city name, see below)
++proj      Projection name (see `proj -l`)
++south     Denotes southern hemisphere UTM zone
++to_meter  Multiplier to convert map units to 1.0m
++towgs84   3 or 7 term datum transform parameters (see below)
++units     meters, US survey feet, etc.
++vto_meter vertical conversion to meters.
++vunits    vertical units.
++x_0       False easting
++y_0       False northing
++zone      UTM zone
++a         Semimajor radius of the ellipsoid axis
++alpha     ? Used with Oblique Mercator and possibly a few others
++azi
++b         Semiminor radius of the ellipsoid axis
++belgium
++beta
++czech
++e         Eccentricity of the ellipsoid = sqrt(1 - b^2/a^2) = sqrt( f*(2-f) )
++ellps     Ellipsoid name (see `proj -le`)
++es        Eccentricity of the ellipsoid squared
++f         Flattening of the ellipsoid (often presented as an inverse, e.g. 1/298)
++gamma
++geoc
++guam
++h
++k         Scaling factor (old name)
++K
++k_0       Scaling factor (new name)
++lat_0     Latitude of origin
++lat_1     Latitude of first standard parallel
++lat_2     Latitude of second standard parallel
++lat_b
++lat_t
++lat_ts    Latitude of true scale
++lon_0     Central meridian
++lon_1
++lon_2
++lonc      ? Longitude used with Oblique Mercator and possibly a few others
++lsat
++m
++M
++n
++no_cut
++no_off
++no_rot
++ns
++o_alpha
++o_lat_1
++o_lat_2
++o_lat_c
++o_lat_p
++o_lon_1
++o_lon_2
++o_lon_c
++o_lon_p
++o_proj
++over
++p
++path
++proj      Projection name (see `proj -l`)
++q
++R
++R_a
++R_A       Compute radius such that the area of the sphere is the same as the area of the ellipsoid
++rf        Reciprocal of the ellipsoid flattening term (e.g. 298)
++R_g
++R_h
++R_lat_a
++R_lat_g
++rot
++R_V
++s
++south     Denotes southern hemisphere UTM zone
++sym
++t
++theta
++tilt
++to_meter  Multiplier to convert map units to 1.0m
++units     meters, US survey feet, etc.
++vopt
++W
++westo
++x_0       False easting
++y_0       False northing
++zone      UTM zone
+"""
+
+_lines = filter(lambda x: len(x) > 1, _param_data.split("\n"))
+all_proj_keys = list(
+    set(line.split()[0].lstrip("+").strip() for line in _lines) 
+    ) + ['no_mayo']
+
diff --git a/fiona/errors.py b/fiona/errors.py
new file mode 100644
index 0000000..d00af0c
--- /dev/null
+++ b/fiona/errors.py
@@ -0,0 +1,11 @@
+class FionaValueError(ValueError):
+    """Fiona-specific value errors"""
+
+class DriverError(FionaValueError):
+    """Encapsulates unsupported driver and driver mode errors."""
+
+class SchemaError(FionaValueError):
+    """When a schema mapping has no properties or no geometry."""
+
+class CRSError(FionaValueError):
+    """When a crs mapping has neither init or proj items."""
diff --git a/fiona/fio/__init__.py b/fiona/fio/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/fiona/fio/cat.py b/fiona/fio/cat.py
new file mode 100644
index 0000000..2986d8c
--- /dev/null
+++ b/fiona/fio/cat.py
@@ -0,0 +1,475 @@
+from functools import partial
+import json
+import logging
+import sys
+
+import click
+
+import fiona
+from fiona.transform import transform_geom
+from fiona.fio.cli import cli
+
+
+def make_ld_context(context_items):
+    """Returns a JSON-LD Context object.
+
+    See http://json-ld.org/spec/latest/json-ld."""
+    ctx = {
+      "@context": {
+        "geojson": "http://ld.geojson.org/vocab#",
+        "Feature": "geojson:Feature",
+        "FeatureCollection": "geojson:FeatureCollection",
+        "GeometryCollection": "geojson:GeometryCollection",
+        "LineString": "geojson:LineString",
+        "MultiLineString": "geojson:MultiLineString",
+        "MultiPoint": "geojson:MultiPoint",
+        "MultiPolygon": "geojson:MultiPolygon",
+        "Point": "geojson:Point",
+        "Polygon": "geojson:Polygon",
+        "bbox": {
+          "@container": "@list",
+          "@id": "geojson:bbox"
+        },
+        "coordinates": "geojson:coordinates",
+        "datetime": "http://www.w3.org/2006/time#inXSDDateTime",
+        "description": "http://purl.org/dc/terms/description",
+        "features": {
+          "@container": "@set",
+          "@id": "geojson:features"
+        },
+        "geometry": "geojson:geometry",
+        "id": "@id",
+        "properties": "geojson:properties",
+        "start": "http://www.w3.org/2006/time#hasBeginning",
+        "stop": "http://www.w3.org/2006/time#hasEnding",
+        "title": "http://purl.org/dc/terms/title",
+        "type": "@type",
+        "when": "geojson:when"
+      }
+    }
+    for item in context_items or []:
+        t, uri = item.split("=")
+        ctx[t.strip()] = uri.strip()
+    return ctx
+
+
+def id_record(rec):
+    """Converts a record's id to a blank node id and returns the record."""
+    rec['id'] = '_:f%s' % rec['id']
+    return rec
+
+
+# Cat command
+ at cli.command(short_help="Concatenate and print the features of datasets")
+# One or more files.
+ at click.argument('input', nargs=-1, type=click.Path(exists=True))
+# Coordinate precision option.
+ at click.option('--precision', type=int, default=-1,
+              help="Decimal precision of coordinates.")
+ at click.option('--indent', default=None, type=int,
+              help="Indentation level for pretty printed output.")
+ at click.option('--compact/--no-compact', default=False,
+              help="Use compact separators (',', ':').")
+ at click.option('--ignore-errors/--no-ignore-errors', default=False,
+              help="log errors but do not stop serialization.")
+ at click.option('--dst_crs', default=None, help="Destination CRS.")
+# Use ASCII RS control code to signal a sequence item (False is default).
+# See http://tools.ietf.org/html/draft-ietf-json-text-sequence-05.
+# Experimental.
+ at click.option('--x-json-seq-rs/--x-json-seq-no-rs', default=True,
+        help="Use RS as text separator instead of LF. Experimental.")
+ at click.pass_context
+def cat(ctx, input, precision, indent, compact, ignore_errors, dst_crs,
+        x_json_seq_rs):
+    """Concatenate and print the features of input datasets as a
+    sequence of GeoJSON features."""
+    verbosity = ctx.obj['verbosity']
+    logger = logging.getLogger('fio')
+    sink = click.get_text_stream('stdout')
+
+    dump_kwds = {'sort_keys': True}
+    if indent:
+        dump_kwds['indent'] = indent
+    if compact:
+        dump_kwds['separators'] = (',', ':')
+    item_sep = compact and ',' or ', '
+
+    try:
+        with fiona.drivers(CPL_DEBUG=verbosity>2):
+            for path in input:
+                with fiona.open(path) as src:
+                    for feat in src:
+                        if dst_crs or precision > 0:
+                            g = transform_geom(
+                                    src.crs, dst_crs, feat['geometry'],
+                                    antimeridian_cutting=True,
+                                    precision=precision)
+                            feat['geometry'] = g
+                        if x_json_seq_rs:
+                            sink.write(u'\u001e')
+                        json.dump(feat, sink, **dump_kwds)
+                        sink.write("\n")
+        sys.exit(0)
+    except Exception:
+        logger.exception("Failed. Exception caught")
+        sys.exit(1)
+
+
+# Collect command
+ at cli.command(short_help="Collect a sequence of features.")
+# Coordinate precision option.
+ at click.option('--precision', type=int, default=-1,
+              help="Decimal precision of coordinates.")
+ at click.option('--indent', default=None, type=int,
+              help="Indentation level for pretty printed output.")
+ at click.option('--compact/--no-compact', default=False,
+              help="Use compact separators (',', ':').")
+ at click.option('--record-buffered/--no-record-buffered', default=False,
+    help="Economical buffering of writes at record, not collection "
+         "(default), level.")
+ at click.option('--ignore-errors/--no-ignore-errors', default=False,
+              help="log errors but do not stop serialization.")
+ at click.option('--src_crs', default=None, help="Source CRS.")
+ at click.option('--with-ld-context/--without-ld-context', default=False,
+        help="add a JSON-LD context to JSON output.")
+ at click.option('--add-ld-context-item', multiple=True,
+        help="map a term to a URI and add it to the output's JSON LD context.")
+ at click.pass_context
+def collect(ctx, precision, indent, compact, record_buffered, ignore_errors,
+            src_crs, with_ld_context, add_ld_context_item):
+    """Make a GeoJSON feature collection from a sequence of GeoJSON
+    features and print it."""
+    verbosity = ctx.obj['verbosity']
+    logger = logging.getLogger('fio')
+    stdin = click.get_text_stream('stdin')
+    sink = click.get_text_stream('stdout')
+
+    dump_kwds = {'sort_keys': True}
+    if indent:
+        dump_kwds['indent'] = indent
+    if compact:
+        dump_kwds['separators'] = (',', ':')
+    item_sep = compact and ',' or ', '
+
+    if src_crs:
+        transformer = partial(transform_geom, src_crs, 'EPSG:4326',
+                              antimeridian_cutting=True, precision=precision)
+    else:
+        transformer = lambda x: x
+
+    first_line = next(stdin)
+
+    # If input is RS-delimited JSON sequence.
+    if first_line.startswith(u'\x1e'):
+        def feature_gen():
+            buffer = first_line.strip(u'\x1e')
+            for line in stdin:
+                if line.startswith(u'\x1e'):
+                    if buffer:
+                        feat = json.loads(buffer)
+                        feat['geometry'] = transformer(feat['geometry'])
+                        yield feat
+                    buffer = line.strip(u'\x1e')
+                else:
+                    buffer += line
+            else:
+                feat = json.loads(buffer)
+                feat['geometry'] = transformer(feat['geometry'])
+                yield feat
+    else:
+        def feature_gen():
+            yield json.loads(first_line)
+            for line in stdin:
+                feat = json.loads(line)
+                feat['geometry'] = transformer(feat['geometry'])
+                yield feat
+
+    try:
+        source = feature_gen()
+
+        if record_buffered:
+            # Buffer GeoJSON data at the feature level for smaller
+            # memory footprint.
+            indented = bool(indent)
+            rec_indent = "\n" + " " * (2 * (indent or 0))
+
+            collection = {
+                'type': 'FeatureCollection',
+                'features': [] }
+            if with_ld_context:
+                collection['@context'] = make_ld_context(
+                    add_ld_context_item)
+
+            head, tail = json.dumps(collection, **dump_kwds).split('[]')
+
+            sink.write(head)
+            sink.write("[")
+
+            # Try the first record.
+            try:
+                i, first = 0, next(source)
+                if with_ld_context:
+                    first = id_record(first)
+                if indented:
+                    sink.write(rec_indent)
+                sink.write(
+                    json.dumps(first, **dump_kwds
+                        ).replace("\n", rec_indent))
+            except StopIteration:
+                pass
+            except Exception as exc:
+                # Ignoring errors is *not* the default.
+                if ignore_errors:
+                    logger.error(
+                        "failed to serialize file record %d (%s), "
+                        "continuing",
+                        i, exc)
+                else:
+                    # Log error and close up the GeoJSON, leaving it
+                    # more or less valid no matter what happens above.
+                    logger.critical(
+                        "failed to serialize file record %d (%s), "
+                        "quiting",
+                        i, exc)
+                    sink.write("]")
+                    sink.write(tail)
+                    if indented:
+                        sink.write("\n")
+                    raise
+
+            # Because trailing commas aren't valid in JSON arrays
+            # we'll write the item separator before each of the
+            # remaining features.
+            for i, rec in enumerate(source, 1):
+                try:
+                    if with_ld_context:
+                        rec = id_record(rec)
+                    if indented:
+                        sink.write(rec_indent)
+                    sink.write(item_sep)
+                    sink.write(
+                        json.dumps(rec, **dump_kwds
+                            ).replace("\n", rec_indent))
+                except Exception as exc:
+                    if ignore_errors:
+                        logger.error(
+                            "failed to serialize file record %d (%s), "
+                            "continuing",
+                            i, exc)
+                    else:
+                        logger.critical(
+                            "failed to serialize file record %d (%s), "
+                            "quiting",
+                            i, exc)
+                        sink.write("]")
+                        sink.write(tail)
+                        if indented:
+                            sink.write("\n")
+                        raise
+
+            # Close up the GeoJSON after writing all features.
+            sink.write("]")
+            sink.write(tail)
+            if indented:
+                sink.write("\n")
+
+        else:
+            # Buffer GeoJSON data at the collection level. The default.
+            collection = {'type': 'FeatureCollection'}
+            if with_ld_context:
+                collection['@context'] = make_ld_context(
+                    add_ld_context_item)
+                collection['features'] = [
+                    id_record(rec) for rec in source]
+            else:
+                collection['features'] = list(source)
+            json.dump(collection, sink, **dump_kwds)
+            sink.write("\n")
+
+        sys.exit(0)
+    except Exception:
+        logger.exception("Failed. Exception caught")
+        sys.exit(1)
+
+
+# Dump command
+ at cli.command(short_help="Dump a dataset to GeoJSON.")
+ at click.argument('input', type=click.Path(), required=True)
+ at click.option('--encoding', help="Specify encoding of the input file.")
+# Coordinate precision option.
+ at click.option('--precision', type=int, default=-1,
+              help="Decimal precision of coordinates.")
+ at click.option('--indent', default=None, type=int,
+              help="Indentation level for pretty printed output.")
+ at click.option('--compact/--no-compact', default=False,
+              help="Use compact separators (',', ':').")
+ at click.option('--record-buffered/--no-record-buffered', default=False,
+    help="Economical buffering of writes at record, not collection "
+         "(default), level.")
+ at click.option('--ignore-errors/--no-ignore-errors', default=False,
+              help="log errors but do not stop serialization.")
+ at click.option('--with-ld-context/--without-ld-context', default=False,
+        help="add a JSON-LD context to JSON output.")
+
+ at click.option('--add-ld-context-item', multiple=True,
+        help="map a term to a URI and add it to the output's JSON LD context.")
+ at click.option('--x-json-seq/--x-json-obj', default=False,
+    help="Write a LF-delimited JSON sequence (default is object). "
+         "Experimental.")
+# Use ASCII RS control code to signal a sequence item (False is default).
+# See http://tools.ietf.org/html/draft-ietf-json-text-sequence-05.
+# Experimental.
+ at click.option('--x-json-seq-rs/--x-json-seq-no-rs', default=True,
+        help="Use RS as text separator. Experimental.")
+ at click.pass_context
+def dump(ctx, input, encoding, precision, indent, compact, record_buffered,
+         ignore_errors, with_ld_context, add_ld_context_item,
+         x_json_seq, x_json_seq_rs):
+    """Dump a dataset either as a GeoJSON feature collection (the default)
+    or a sequence of GeoJSON features."""
+    verbosity = ctx.obj['verbosity']
+    logger = logging.getLogger('fio')
+    sink = click.get_text_stream('stdout')
+
+    dump_kwds = {'sort_keys': True}
+    if indent:
+        dump_kwds['indent'] = indent
+    if compact:
+        dump_kwds['separators'] = (',', ':')
+    item_sep = compact and ',' or ', '
+
+    open_kwds = {}
+    if encoding:
+        open_kwds['encoding'] = encoding
+
+    def transformer(feat):
+        tg = partial(transform_geom, src_crs, 'EPSG:4326',
+                     antimeridian_cutting=True, precision=precision)
+        feat['geometry'] = tg(feat['geometry'])
+        return feat
+
+    try:
+        with fiona.drivers(CPL_DEBUG=verbosity>2):
+            with fiona.open(input, **open_kwds) as source:
+                meta = source.meta
+                meta['fields'] = dict(source.schema['properties'].items())
+
+                if x_json_seq:
+                    for feat in source:
+                        feat = transformer(feat)
+                        if x_json_seq_rs:
+                            sink.write(u'\u001e')
+                        json.dump(feat, sink, **dump_kwds)
+                        sink.write("\n")
+
+                elif record_buffered:
+                    # Buffer GeoJSON data at the feature level for smaller
+                    # memory footprint.
+                    indented = bool(indent)
+                    rec_indent = "\n" + " " * (2 * (indent or 0))
+
+                    collection = {
+                        'type': 'FeatureCollection',
+                        'fiona:schema': meta['schema'],
+                        'fiona:crs': meta['crs'],
+                        'features': [] }
+                    if with_ld_context:
+                        collection['@context'] = make_ld_context(
+                            add_ld_context_item)
+
+                    head, tail = json.dumps(collection, **dump_kwds).split('[]')
+
+                    sink.write(head)
+                    sink.write("[")
+
+                    itr = iter(source)
+
+                    # Try the first record.
+                    try:
+                        i, first = 0, next(itr)
+                        first = transformer(first)
+                        if with_ld_context:
+                            first = id_record(first)
+                        if indented:
+                            sink.write(rec_indent)
+                        sink.write(
+                            json.dumps(first, **dump_kwds
+                                ).replace("\n", rec_indent))
+                    except StopIteration:
+                        pass
+                    except Exception as exc:
+                        # Ignoring errors is *not* the default.
+                        if ignore_errors:
+                            logger.error(
+                                "failed to serialize file record %d (%s), "
+                                "continuing",
+                                i, exc)
+                        else:
+                            # Log error and close up the GeoJSON, leaving it
+                            # more or less valid no matter what happens above.
+                            logger.critical(
+                                "failed to serialize file record %d (%s), "
+                                "quiting",
+                                i, exc)
+                            sink.write("]")
+                            sink.write(tail)
+                            if indented:
+                                sink.write("\n")
+                            raise
+
+                    # Because trailing commas aren't valid in JSON arrays
+                    # we'll write the item separator before each of the
+                    # remaining features.
+                    for i, rec in enumerate(itr, 1):
+                        rec = transformer(rec)
+                        try:
+                            if with_ld_context:
+                                rec = id_record(rec)
+                            if indented:
+                                sink.write(rec_indent)
+                            sink.write(item_sep)
+                            sink.write(
+                                json.dumps(rec, **dump_kwds
+                                    ).replace("\n", rec_indent))
+                        except Exception as exc:
+                            if ignore_errors:
+                                logger.error(
+                                    "failed to serialize file record %d (%s), "
+                                    "continuing",
+                                    i, exc)
+                            else:
+                                logger.critical(
+                                    "failed to serialize file record %d (%s), "
+                                    "quiting",
+                                    i, exc)
+                                sink.write("]")
+                                sink.write(tail)
+                                if indented:
+                                    sink.write("\n")
+                                raise
+
+                    # Close up the GeoJSON after writing all features.
+                    sink.write("]")
+                    sink.write(tail)
+                    if indented:
+                        sink.write("\n")
+
+                else:
+                    # Buffer GeoJSON data at the collection level. The default.
+                    collection = {
+                        'type': 'FeatureCollection',
+                        'fiona:schema': meta['schema'],
+                        'fiona:crs': meta['crs']}
+                    if with_ld_context:
+                        collection['@context'] = make_ld_context(
+                            add_ld_context_item)
+                        collection['features'] = [
+                            id_record(transformer(rec)) for rec in source]
+                    else:
+                        collection['features'] = [transformer(rec) for rec in source]
+                    json.dump(collection, sink, **dump_kwds)
+
+        sys.exit(0)
+    except Exception:
+        logger.exception("Failed. Exception caught")
+        sys.exit(1)
diff --git a/fiona/fio/cli.py b/fiona/fio/cli.py
new file mode 100644
index 0000000..8d38fa0
--- /dev/null
+++ b/fiona/fio/cli.py
@@ -0,0 +1,36 @@
+import logging
+import sys
+import warnings
+
+import click
+
+from fiona import __version__ as fio_version
+
+
+warnings.simplefilter('default')
+
+def configure_logging(verbosity):
+    log_level = max(10, 30 - 10*verbosity)
+    logging.basicConfig(stream=sys.stderr, level=log_level)
+
+
+def print_version(ctx, param, value):
+    if not value or ctx.resilient_parsing:
+        return
+    click.echo(fio_version)
+    ctx.exit()
+
+
+# The CLI command group.
+ at click.group(help="Fiona command line interface.")
+ at click.option('--verbose', '-v', count=True, help="Increase verbosity.")
+ at click.option('--quiet', '-q', count=True, help="Decrease verbosity.")
+ at click.option('--version', is_flag=True, callback=print_version,
+              expose_value=False, is_eager=True,
+              help="Print Fiona version.")
+ at click.pass_context
+def cli(ctx, verbose, quiet):
+    verbosity = verbose - quiet
+    configure_logging(verbosity)
+    ctx.obj = {}
+    ctx.obj['verbosity'] = verbosity
diff --git a/fiona/fio/fio.py b/fiona/fio/fio.py
new file mode 100644
index 0000000..0bb61d4
--- /dev/null
+++ b/fiona/fio/fio.py
@@ -0,0 +1,202 @@
+#!/usr/bin/env python
+
+"""Fiona command line interface"""
+
+import code
+from functools import partial
+import json
+import logging
+import pprint
+import sys
+import warnings
+
+import click
+import six.moves
+
+import fiona
+import fiona.crs
+from fiona.transform import transform_geom
+from fiona.fio.cli import cli
+from fiona.fio.cat import cat, dump
+
+
+FIELD_TYPES_MAP_REV = dict([(v, k) for k, v in fiona.FIELD_TYPES_MAP.items()])
+
+warnings.simplefilter('default')
+
+# Commands are below.
+
+ at cli.command(short_help="Print information about the rio environment.")
+ at click.option('--formats', 'key', flag_value='formats', default=True,
+              help="Enumerate the available formats.")
+ at click.pass_context
+def env(ctx, key):
+    """Print information about the Rasterio environment: available
+    formats, etc.
+    """
+    verbosity = (ctx.obj and ctx.obj.get('verbosity')) or 1
+    logger = logging.getLogger('fio')
+    stdout = click.get_text_stream('stdout')
+    with fiona.drivers(CPL_DEBUG=(verbosity > 2)) as env:
+        if key == 'formats':
+            for k, v in sorted(fiona.supported_drivers.items()):
+                modes = ', '.join("'" + m + "'" for m in v)
+                stdout.write("%s (modes %s)\n" % (k, modes))
+            stdout.write('\n')
+
+
+# Info command.
+ at cli.command(short_help="Print information about a dataset.")
+# One or more files.
+ at click.argument('input', type=click.Path(exists=True))
+ at click.option('--indent', default=None, type=int, 
+              help="Indentation level for pretty printed output.")
+# Options to pick out a single metadata item and print it as
+# a string.
+ at click.option('--count', 'meta_member', flag_value='count',
+              help="Print the count of features.")
+ at click.option('-f', '--format', '--driver', 'meta_member', flag_value='driver',
+              help="Print the format driver.")
+ at click.option('--crs', 'meta_member', flag_value='crs',
+              help="Print the CRS as a PROJ.4 string.")
+ at click.option('--bounds', 'meta_member', flag_value='bounds',
+              help="Print the nodata value.")
+ at click.pass_context
+def info(ctx, input, indent, meta_member):
+    verbosity = ctx.obj['verbosity']
+    logger = logging.getLogger('rio')
+
+    stdout = click.get_text_stream('stdout')
+    try:
+        with fiona.drivers(CPL_DEBUG=verbosity>2):
+            with fiona.open(input) as src:
+                info = src.meta
+                info.update(bounds=src.bounds, count=len(src))
+                proj4 = fiona.crs.to_string(src.crs)
+                if proj4.startswith('+init=epsg'):
+                    proj4 = proj4.split('=')[1].upper()
+                info['crs'] = proj4
+                if meta_member:
+                    if isinstance(info[meta_member], (list, tuple)):
+                        print(" ".join(map(str, info[meta_member])))
+                    else:
+                        print(info[meta_member])
+                else:
+                    stdout.write(json.dumps(info, indent=indent))
+                    stdout.write("\n")
+        sys.exit(0)
+    except Exception:
+        logger.exception("Failed. Exception caught")
+        sys.exit(1)
+
+# Insp command.
+ at cli.command(short_help="Open a dataset and start an interpreter.")
+ at click.argument('src_path', type=click.Path(exists=True))
+ at click.pass_context
+def insp(ctx, src_path):
+    verbosity = ctx.obj['verbosity']
+    logger = logging.getLogger('fio')
+    try:
+        with fiona.drivers(CPL_DEBUG=verbosity>2):
+            with fiona.open(src_path) as src:
+                code.interact(
+                    'Fiona %s Interactive Inspector (Python %s)\n'
+                    'Type "src.schema", "next(src)", or "help(src)" '
+                    'for more information.' %  (
+                        fiona.__version__, '.'.join(
+                            map(str, sys.version_info[:3]))),
+                    local=locals())
+            sys.exit(0)
+    except Exception:
+        logger.exception("Failed. Exception caught")
+        sys.exit(1)
+
+
+# Load command.
+ at cli.command(short_help="Load GeoJSON to a dataset in another format.")
+ at click.argument('output', type=click.Path(), required=True)
+ at click.option('-f', '--format', '--driver', required=True,
+              help="Output format driver name.")
+ at click.option('--src_crs', default=None, help="Source CRS.")
+ at click.option('--dst_crs', default=None, help="Destination CRS.")
+ at click.option('--x-json-seq/--x-json-obj', default=False,
+              help="Read a LF-delimited JSON sequence (default is object). Experimental.")
+ at click.pass_context
+
+def load(ctx, output, driver, src_crs, dst_crs, x_json_seq):
+    """Load features from JSON to a file in another format.
+
+    The input is a GeoJSON feature collection or optionally a sequence of
+    GeoJSON feature objects."""
+    verbosity = ctx.obj['verbosity']
+    logger = logging.getLogger('fio')
+    stdin = click.get_text_stream('stdin')
+
+    if src_crs and dst_crs:
+        transformer = partial(transform_geom, src_crs, dst_crs,
+                              antimeridian_cutting=True, precision=-1)
+    else:
+        transformer = lambda x: x
+
+    first_line = next(stdin)
+
+    # If input is RS-delimited JSON sequence.
+    if first_line.startswith(u'\x1e'):
+        def feature_gen():
+            buffer = first_line.strip(u'\x1e')
+            for line in stdin:
+                if line.startswith(u'\x1e'):
+                    if buffer:
+                        feat = json.loads(buffer)
+                        feat['geometry'] = transformer(feat['geometry'])
+                        yield feat
+                    buffer = line.strip(u'\x1e')
+                else:
+                    buffer += line
+            else:
+                feat = json.loads(buffer)
+                feat['geometry'] = transformer(feat['geometry'])
+                yield feat
+    elif x_json_seq:
+        def feature_gen():
+            yield json.loads(first_line)
+            for line in stdin:
+                feat = json.loads(line)
+                feat['geometry'] = transformer(feat['geometry'])
+                yield feat
+    else:
+        def feature_gen():
+            for feat in json.load(input)['features']:
+                feat['geometry'] = transformer(feat['geometry'])
+                yield feat
+
+    try:
+        source = feature_gen()
+
+        # Use schema of first feature as a template.
+        # TODO: schema specified on command line?
+        first = next(source)
+        schema = {'geometry': first['geometry']['type']}
+        schema['properties'] = dict([
+            (k, FIELD_TYPES_MAP_REV[type(v)])
+            for k, v in first['properties'].items()])
+
+        with fiona.drivers(CPL_DEBUG=verbosity>2):
+            with fiona.open(
+                    output, 'w',
+                    driver=driver,
+                    crs=dst_crs,
+                    schema=schema) as dst:
+                dst.write(first)
+                dst.writerecords(source)
+        sys.exit(0)
+    except IOError:
+        logger.info("IOError caught")
+        sys.exit(0)
+    except Exception:
+        logger.exception("Failed. Exception caught")
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    cli()
diff --git a/fiona/inspector.py b/fiona/inspector.py
new file mode 100644
index 0000000..e5e44c1
--- /dev/null
+++ b/fiona/inspector.py
@@ -0,0 +1,40 @@
+
+import code
+import logging
+import sys
+
+import fiona
+
+
+logging.basicConfig(stream=sys.stderr, level=logging.INFO)
+logger = logging.getLogger('fiona.inspector')
+
+
+def main(srcfile):
+    
+    with fiona.drivers(), fiona.open(srcfile) as src:
+            
+        code.interact(
+            'Fiona %s Interactive Inspector (Python %s)\n'
+            'Type "src.schema", "next(src)", or "help(src)" '
+            'for more information.' %  (
+                fiona.__version__, '.'.join(map(str, sys.version_info[:3]))),
+            local=locals())
+
+    return 1
+
+if __name__ == '__main__':
+    
+    import argparse
+
+    parser = argparse.ArgumentParser(
+        prog="python -m fiona.inspector",
+        description="Open a data file and drop into an interactive interpreter")
+    parser.add_argument(
+        'src', 
+        metavar='FILE', 
+        help="Input dataset file name")
+    args = parser.parse_args()
+    
+    main(args.src)
+
diff --git a/fiona/odict.py b/fiona/odict.py
new file mode 100644
index 0000000..f3479bb
--- /dev/null
+++ b/fiona/odict.py
@@ -0,0 +1,4 @@
+try:
+    from collections import OrderedDict
+except ImportError:    
+    from ordereddict import OrderedDict
diff --git a/fiona/ogrext.c b/fiona/ogrext.c
new file mode 100644
index 0000000..895cfbd
--- /dev/null
+++ b/fiona/ogrext.c
@@ -0,0 +1,23764 @@
+/* Generated by Cython 0.21 */
+
+#define PY_SSIZE_T_CLEAN
+#ifndef CYTHON_USE_PYLONG_INTERNALS
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#else
+#include "pyconfig.h"
+#ifdef PYLONG_BITS_IN_DIGIT
+#define CYTHON_USE_PYLONG_INTERNALS 1
+#else
+#define CYTHON_USE_PYLONG_INTERNALS 0
+#endif
+#endif
+#endif
+#include "Python.h"
+#ifndef Py_PYTHON_H
+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03020000)
+    #error Cython requires Python 2.6+ or Python 3.2+.
+#else
+#define CYTHON_ABI "0_21"
+#include <stddef.h>
+#ifndef offsetof
+#define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+#endif
+#if !defined(WIN32) && !defined(MS_WINDOWS)
+  #ifndef __stdcall
+    #define __stdcall
+  #endif
+  #ifndef __cdecl
+    #define __cdecl
+  #endif
+  #ifndef __fastcall
+    #define __fastcall
+  #endif
+#endif
+#ifndef DL_IMPORT
+  #define DL_IMPORT(t) t
+#endif
+#ifndef DL_EXPORT
+  #define DL_EXPORT(t) t
+#endif
+#ifndef PY_LONG_LONG
+  #define PY_LONG_LONG LONG_LONG
+#endif
+#ifndef Py_HUGE_VAL
+  #define Py_HUGE_VAL HUGE_VAL
+#endif
+#ifdef PYPY_VERSION
+#define CYTHON_COMPILING_IN_PYPY 1
+#define CYTHON_COMPILING_IN_CPYTHON 0
+#else
+#define CYTHON_COMPILING_IN_PYPY 0
+#define CYTHON_COMPILING_IN_CPYTHON 1
+#endif
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600
+#define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_CHECKTYPES 0
+  #define Py_TPFLAGS_HAVE_INDEX 0
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
+#endif
+#if PY_VERSION_HEX < 0x030400a1 && !defined(Py_TPFLAGS_HAVE_FINALIZE)
+  #define Py_TPFLAGS_HAVE_FINALIZE 0
+#endif
+#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
+  #define CYTHON_PEP393_ENABLED 1
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
+                                              0 : _PyUnicode_Ready((PyObject *)(op)))
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
+  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
+  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+#else
+  #define CYTHON_PEP393_ENABLED 0
+  #define __Pyx_PyUnicode_READY(op)       (0)
+  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
+  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
+  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
+  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+#endif
+#if CYTHON_COMPILING_IN_PYPY
+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
+#else
+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ? \
+      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+#endif
+#ifndef CYTHON_INLINE
+  #if defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
+   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
+   a quiet NaN. */
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#ifdef __cplusplus
+template<typename T>
+void __Pyx_call_destructor(T* x) {
+    x->~T();
+}
+#endif
+
+
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+#define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#define __PYX_HAVE__fiona__ogrext
+#define __PYX_HAVE_API__fiona__ogrext
+#include "gdal.h"
+#include "gdal_version.h"
+#include "cpl_conv.h"
+#include "cpl_string.h"
+#include "ogr_core.h"
+#include "ogr_srs_api.h"
+#include "ogr_api.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#ifdef PYREX_WITHOUT_ASSERTIONS
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
+    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
+    (sizeof(type) > sizeof(Py_ssize_t) &&               \
+          likely(v < (type)PY_SSIZE_T_MAX ||            \
+                 v == (type)PY_SSIZE_T_MAX)  &&         \
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
+                                v == (type)PY_SSIZE_T_MIN)))  ||  \
+    (sizeof(type) == sizeof(Py_ssize_t) &&              \
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+                               v == (type)PY_SSIZE_T_MAX)))  )
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
+#if PY_MAJOR_VERSION < 3
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
+{
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#else
+#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
+#endif
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
+#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+
+static PyObject *__pyx_m;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "fiona/ogrext.pyx",
+  "fiona/_geometry.pxd",
+};
+
+/* "ograpi.pxd":21
+ *     void    CSLDestroy (char **list)
+ * 
+ * ctypedef int OGRErr             # <<<<<<<<<<<<<<
+ * ctypedef struct OGREnvelope:
+ *     double MinX
+ */
+typedef int __pyx_t_5fiona_6ograpi_OGRErr;
+
+/*--- Type declarations ---*/
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder;
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder;
+struct __pyx_obj_5fiona_6ogrext_FeatureBuilder;
+struct __pyx_obj_5fiona_6ogrext_OGRFeatureBuilder;
+struct __pyx_obj_5fiona_6ogrext_Session;
+struct __pyx_obj_5fiona_6ogrext_WritingSession;
+struct __pyx_obj_5fiona_6ogrext_Iterator;
+struct __pyx_obj_5fiona_6ogrext_ItemsIterator;
+struct __pyx_obj_5fiona_6ogrext_KeysIterator;
+struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode;
+struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs;
+struct __pyx_t_5fiona_6ograpi_OGREnvelope;
+typedef struct __pyx_t_5fiona_6ograpi_OGREnvelope __pyx_t_5fiona_6ograpi_OGREnvelope;
+
+/* "ograpi.pxd":22
+ * 
+ * ctypedef int OGRErr
+ * ctypedef struct OGREnvelope:             # <<<<<<<<<<<<<<
+ *     double MinX
+ *     double MaxX
+ */
+struct __pyx_t_5fiona_6ograpi_OGREnvelope {
+  double MinX;
+  double MaxX;
+  double MinY;
+  double MaxY;
+};
+struct __pyx_opt_args_5fiona_6ogrext_14FeatureBuilder_build;
+
+/* "fiona/ogrext.pyx":137
+ *     """
+ * 
+ *     cdef build(self, void *feature, encoding='utf-8', bbox=False):             # <<<<<<<<<<<<<<
+ *         # The only method anyone ever needs to call
+ *         cdef void *fdefn
+ */
+struct __pyx_opt_args_5fiona_6ogrext_14FeatureBuilder_build {
+  int __pyx_n;
+  PyObject *encoding;
+  PyObject *bbox;
+};
+
+/* "fiona/_geometry.pxd":2
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void *geom
+ *     cdef object code
+ */
+struct __pyx_obj_5fiona_9_geometry_GeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtab;
+  void *geom;
+  PyObject *code;
+  PyObject *geomtypename;
+  PyObject *ndims;
+};
+
+
+/* "fiona/_geometry.pxd":21
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void * _createOgrGeometry(self, int geom_type)
+ *     cdef _addPointToGeometry(self, void *cogr_geometry, object coordinate)
+ */
+struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtab;
+};
+
+
+/* "fiona/ogrext.pyx":130
+ * # Feature extension classes and functions follow.
+ * 
+ * cdef class FeatureBuilder:             # <<<<<<<<<<<<<<
+ *     """Build Fiona features from OGR feature pointers.
+ * 
+ */
+struct __pyx_obj_5fiona_6ogrext_FeatureBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_6ogrext_FeatureBuilder *__pyx_vtab;
+};
+
+
+/* "fiona/ogrext.pyx":209
+ * 
+ * 
+ * cdef class OGRFeatureBuilder:             # <<<<<<<<<<<<<<
+ * 
+ *     """Builds an OGR Feature from a Fiona feature mapping.
+ */
+struct __pyx_obj_5fiona_6ogrext_OGRFeatureBuilder {
+  PyObject_HEAD
+  struct __pyx_vtabstruct_5fiona_6ogrext_OGRFeatureBuilder *__pyx_vtab;
+};
+
+
+/* "fiona/ogrext.pyx":324
+ * # Collection-related extension classes and functions
+ * 
+ * cdef class Session:             # <<<<<<<<<<<<<<
+ * 
+ *     cdef void *cogr_ds
+ */
+struct __pyx_obj_5fiona_6ogrext_Session {
+  PyObject_HEAD
+  void *cogr_ds;
+  void *cogr_layer;
+  PyObject *_fileencoding;
+  PyObject *_encoding;
+  PyObject *collection;
+  int _read_ts;
+};
+
+
+/* "fiona/ogrext.pyx":613
+ * 
+ * 
+ * cdef class WritingSession(Session):             # <<<<<<<<<<<<<<
+ * 
+ *     cdef object _schema_mapping
+ */
+struct __pyx_obj_5fiona_6ogrext_WritingSession {
+  struct __pyx_obj_5fiona_6ogrext_Session __pyx_base;
+  PyObject *_schema_mapping;
+};
+
+
+/* "fiona/ogrext.pyx":903
+ * 
+ * 
+ * cdef class Iterator:             # <<<<<<<<<<<<<<
+ * 
+ *     """Provides iterated access to feature data.
+ */
+struct __pyx_obj_5fiona_6ogrext_Iterator {
+  PyObject_HEAD
+  PyObject *collection;
+  PyObject *encoding;
+  int _read_ts;
+  int next_index;
+  PyObject *stop;
+  PyObject *start;
+  PyObject *step;
+  PyObject *fastindex;
+  PyObject *stepsign;
+};
+
+
+/* "fiona/ogrext.pyx":1053
+ * 
+ * 
+ * cdef class ItemsIterator(Iterator):             # <<<<<<<<<<<<<<
+ * 
+ *     def __next__(self):
+ */
+struct __pyx_obj_5fiona_6ogrext_ItemsIterator {
+  struct __pyx_obj_5fiona_6ogrext_Iterator __pyx_base;
+};
+
+
+/* "fiona/ogrext.pyx":1082
+ * 
+ * 
+ * cdef class KeysIterator(Iterator):             # <<<<<<<<<<<<<<
+ * 
+ *     def __next__(self):
+ */
+struct __pyx_obj_5fiona_6ogrext_KeysIterator {
+  struct __pyx_obj_5fiona_6ogrext_Iterator __pyx_base;
+};
+
+
+/* "fiona/ogrext.pyx":94
+ * 
+ * 
+ * def _explode(coords):             # <<<<<<<<<<<<<<
+ *     """Explode a GeoJSON geometry's coordinates object and yield
+ *     coordinate tuples. As long as the input is conforming, the type of
+ */
+struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode {
+  PyObject_HEAD
+  PyObject *__pyx_v_coords;
+  PyObject *__pyx_v_e;
+  PyObject *__pyx_v_f;
+  PyObject *__pyx_t_0;
+  Py_ssize_t __pyx_t_1;
+  PyObject *(*__pyx_t_2)(PyObject *);
+  PyObject *__pyx_t_3;
+  Py_ssize_t __pyx_t_4;
+  PyObject *(*__pyx_t_5)(PyObject *);
+};
+
+
+/* "fiona/ogrext.pyx":841
+ *         log.debug("Writing started")
+ * 
+ *     def writerecs(self, records, collection):             # <<<<<<<<<<<<<<
+ *         """Writes buffered records to OGR."""
+ *         cdef void *cogr_driver
+ */
+struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs {
+  PyObject_HEAD
+  PyObject *__pyx_v_schema_geom_type;
+};
+
+
+
+/* "fiona/_geometry.pxd":2
+ * 
+ * cdef class GeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void *geom
+ *     cdef object code
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder {
+  PyObject *(*_buildCoords)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildParts)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, int __pyx_skip_dispatch);
+  PyObject *(*build)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, void *);
+  PyObject *(*build_wkb)(struct __pyx_obj_5fiona_9_geometry_GeomBuilder *, PyObject *, int __pyx_skip_dispatch);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_GeomBuilder *__pyx_vtabptr_5fiona_9_geometry_GeomBuilder;
+
+
+/* "fiona/_geometry.pxd":21
+ * 
+ * 
+ * cdef class OGRGeomBuilder:             # <<<<<<<<<<<<<<
+ *     cdef void * _createOgrGeometry(self, int geom_type)
+ *     cdef _addPointToGeometry(self, void *cogr_geometry, object coordinate)
+ */
+
+struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder {
+  void *(*_createOgrGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, int);
+  PyObject *(*_addPointToGeometry)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, void *, PyObject *);
+  void *(*_buildPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildLinearRing)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPoint)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiLineString)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildMultiPolygon)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*_buildGeometryCollection)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+  void *(*build)(struct __pyx_obj_5fiona_9_geometry_OGRGeomBuilder *, PyObject *);
+};
+static struct __pyx_vtabstruct_5fiona_9_geometry_OGRGeomBuilder *__pyx_vtabptr_5fiona_9_geometry_OGRGeomBuilder;
+
+
+/* "fiona/ogrext.pyx":130
+ * # Feature extension classes and functions follow.
+ * 
+ * cdef class FeatureBuilder:             # <<<<<<<<<<<<<<
+ *     """Build Fiona features from OGR feature pointers.
+ * 
+ */
+
+struct __pyx_vtabstruct_5fiona_6ogrext_FeatureBuilder {
+  PyObject *(*build)(struct __pyx_obj_5fiona_6ogrext_FeatureBuilder *, void *, struct __pyx_opt_args_5fiona_6ogrext_14FeatureBuilder_build *__pyx_optional_args);
+};
+static struct __pyx_vtabstruct_5fiona_6ogrext_FeatureBuilder *__pyx_vtabptr_5fiona_6ogrext_FeatureBuilder;
+
+
+/* "fiona/ogrext.pyx":209
+ * 
+ * 
+ * cdef class OGRFeatureBuilder:             # <<<<<<<<<<<<<<
+ * 
+ *     """Builds an OGR Feature from a Fiona feature mapping.
+ */
+
+struct __pyx_vtabstruct_5fiona_6ogrext_OGRFeatureBuilder {
+  void *(*build)(struct __pyx_obj_5fiona_6ogrext_OGRFeatureBuilder *, PyObject *, PyObject *);
+};
+static struct __pyx_vtabstruct_5fiona_6ogrext_OGRFeatureBuilder *__pyx_vtabptr_5fiona_6ogrext_OGRFeatureBuilder;
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+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
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+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
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+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
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+        PyObject *tmp = (PyObject *) r;                         \
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+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
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+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
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+    if (likely(tp->tp_getattro))
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+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
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+    return PyObject_GetAttr(obj, attr_name);
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+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
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+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name);
+
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
+    const char* function_name);
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+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
+#else
+#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected);
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index);
+
+static CYTHON_INLINE int __Pyx_IterFinish(void);
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected);
+
+static CYTHON_INLINE void __Pyx_ExceptionSave(PyObject **type, PyObject **value, PyObject **tb);
+static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb);
+
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);
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+#define __Pyx_PyObject_CallNoArg(func) __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL)
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+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb);
+
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);
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+#include <string.h>
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+static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
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+         const char* encoding, const char* errors,
+         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors));
+
+#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) : \
+    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) : \
+               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
+#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck) \
+    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ? \
+    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) : \
+    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck);
+
+static CYTHON_INLINE int __Pyx_PySequence_Contains(PyObject* item, PyObject* seq, int eq) {
+    int result = PySequence_Contains(seq, item);
+    return unlikely(result < 0) ? result : (result == (eq == Py_EQ));
+}
+
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);
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+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyString_Equals __Pyx_PyUnicode_Equals
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+#define __Pyx_PyString_Equals __Pyx_PyBytes_Equals
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+
+static CYTHON_INLINE int __Pyx_CheckKeywordStrings(PyObject *kwdict, const char* function_name, int kw_allowed);
+
+static void __Pyx_WriteUnraisable(const char *name, int clineno,
+                                  int lineno, const char *filename,
+                                  int full_traceback);
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x02070000
+static CYTHON_INLINE PyObject* __Pyx_PyObject_LookupSpecial(PyObject* obj, PyObject* attr_name) {
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+    PyTypeObject *tp = Py_TYPE(obj);
+#if PY_MAJOR_VERSION < 3
+    if (unlikely(PyInstance_Check(obj)))
+        return __Pyx_PyObject_GetAttrStr(obj, attr_name);
+#endif
+    res = _PyType_Lookup(tp, attr_name);
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+        if (!f) {
+            Py_INCREF(res);
+        } else {
+            res = f(res, obj, (PyObject *)tp);
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+        PyErr_SetObject(PyExc_AttributeError, attr_name);
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+    return res;
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+#else
+#define __Pyx_PyObject_LookupSpecial(o,n) __Pyx_PyObject_GetAttrStr(o,n)
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyObject_DelAttrStr(o,n) __Pyx_PyObject_SetAttrStr(o,n,NULL)
+static CYTHON_INLINE int __Pyx_PyObject_SetAttrStr(PyObject* obj, PyObject* attr_name, PyObject* value) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_setattro))
+        return tp->tp_setattro(obj, attr_name, value);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_setattr))
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+#endif
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+#define __Pyx_PyObject_DelAttrStr(o,n)   PyObject_DelAttr(o,n)
+#define __Pyx_PyObject_SetAttrStr(o,n,v) PyObject_SetAttr(o,n,v)
+#endif
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+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname);
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
+    PyListObject* L = (PyListObject*) list;
+    Py_ssize_t len = Py_SIZE(list);
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+#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
+#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
+#define __Pyx_CYFUNCTION_CCLASS        0x04
+#define __Pyx_CyFunction_GetClosure(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_closure)
+#define __Pyx_CyFunction_GetClassObj(f) \
+    (((__pyx_CyFunctionObject *) (f))->func_classobj)
+#define __Pyx_CyFunction_Defaults(type, f) \
+    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
+#define __Pyx_CyFunction_SetDefaultsGetter(f, g) \
+    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
+typedef struct {
+    PyCFunctionObject func;
+#if PY_VERSION_HEX < 0x030500A0
+    PyObject *func_weakreflist;
+#endif
+    PyObject *func_dict;
+    PyObject *func_name;
+    PyObject *func_qualname;
+    PyObject *func_doc;
+    PyObject *func_globals;
+    PyObject *func_code;
+    PyObject *func_closure;
+    PyObject *func_classobj;
+    void *defaults;
+    int defaults_pyobjects;
+    int flags;
+    PyObject *defaults_tuple;
+    PyObject *defaults_kwdict;
+    PyObject *(*defaults_getter)(PyObject *);
+    PyObject *func_annotations;
+} __pyx_CyFunctionObject;
+static PyTypeObject *__pyx_CyFunctionType = 0;
+#define __Pyx_CyFunction_NewEx(ml, flags, qualname, self, module, globals, code) \
+    __Pyx_CyFunction_New(__pyx_CyFunctionType, ml, flags, qualname, self, module, globals, code)
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *, PyMethodDef *ml,
+                                      int flags, PyObject* qualname,
+                                      PyObject *self,
+                                      PyObject *module, PyObject *globals,
+                                      PyObject* code);
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
+                                                         size_t size,
+                                                         int pyobjects);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
+                                                            PyObject *tuple);
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
+                                                             PyObject *dict);
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
+                                                              PyObject *dict);
+static int __Pyx_CyFunction_init(void);
+
+static int __Pyx_SetVtable(PyObject *dict, void *vtable);
+
+static void* __Pyx_GetVtable(PyObject *dict);
+
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases);
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name, PyObject *qualname,
+                                           PyObject *mkw, PyObject *modname, PyObject *doc);
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases, PyObject *dict,
+                                      PyObject *mkw, int calculate_metaclass, int allow_py2_metaclass);
+
+typedef struct {
+    int code_line;
+    PyCodeObject* code_object;
+} __Pyx_CodeObjectCacheEntry;
+struct __Pyx_CodeObjectCache {
+    int count;
+    int max_count;
+    __Pyx_CodeObjectCacheEntry* entries;
+};
+static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
+static PyCodeObject *__pyx_find_code_object(int code_line);
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
+
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename);
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value);
+
+static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *);
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb);
+
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg);
+
+#define __Pyx_Generator_USED
+#include <structmember.h>
+#include <frameobject.h>
+typedef PyObject *(*__pyx_generator_body_t)(PyObject *, PyObject *);
+typedef struct {
+    PyObject_HEAD
+    __pyx_generator_body_t body;
+    PyObject *closure;
+    PyObject *exc_type;
+    PyObject *exc_value;
+    PyObject *exc_traceback;
+    PyObject *gi_weakreflist;
+    PyObject *classobj;
+    PyObject *yieldfrom;
+    PyObject *gi_name;
+    PyObject *gi_qualname;
+    int resume_label;
+    char is_running;
+} __pyx_GeneratorObject;
+static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
+                                                  PyObject *closure, PyObject *name, PyObject *qualname);
+static int __pyx_Generator_init(void);
+static int __Pyx_Generator_clear(PyObject* self);
+#if 1 || PY_VERSION_HEX < 0x030300B0
+static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue);
+#else
+#define __Pyx_PyGen_FetchStopIterationValue(pvalue) PyGen_FetchStopIterationValue(pvalue)
+#endif
+
+static int __Pyx_check_binary_version(void);
+
+#if !defined(__Pyx_PyIdentifier_FromString)
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_PyIdentifier_FromString(s) PyString_FromString(s)
+#else
+  #define __Pyx_PyIdentifier_FromString(s) PyUnicode_FromString(s)
+#endif
+#endif
+
+static PyObject *__Pyx_ImportModule(const char *name);
+
+static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name, size_t size, int strict);
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
+
+static PyObject *__pyx_f_5fiona_6ogrext_14FeatureBuilder_build(CYTHON_UNUSED struct __pyx_obj_5fiona_6ogrext_FeatureBuilder *__pyx_v_self, void *__pyx_v_feature, struct __pyx_opt_args_5fiona_6ogrext_14FeatureBuilder_build *__pyx_optional_args); /* proto*/
+static void *__pyx_f_5fiona_6ogrext_17OGRFeatureBuilder_build(CYTHON_UNUSED struct __pyx_obj_5fiona_6ogrext_OGRFeatureBuilder *__pyx_v_self, PyObject *__pyx_v_feature, PyObject *__pyx_v_collection); /* proto*/
+
+/* Module declarations from 'fiona' */
+
+/* Module declarations from 'fiona.ograpi' */
+
+/* Module declarations from 'fiona._geometry' */
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_GeomBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_9_geometry_OGRGeomBuilder = 0;
+
+/* Module declarations from 'fiona.ogrext' */
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_FeatureBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_OGRFeatureBuilder = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_Session = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_WritingSession = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_Iterator = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_ItemsIterator = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext_KeysIterator = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext___pyx_scope_struct___explode = 0;
+static PyTypeObject *__pyx_ptype_5fiona_6ogrext___pyx_scope_struct_1_writerecs = 0;
+static PyObject *__pyx_f_5fiona_6ogrext__deleteOgrFeature(void *); /*proto*/
+#define __Pyx_MODULE_NAME "fiona.ogrext"
+int __pyx_module_is_main_fiona__ogrext = 0;
+
+/* Implementation of 'fiona.ogrext' */
+static PyObject *__pyx_builtin_zip;
+static PyObject *__pyx_builtin_min;
+static PyObject *__pyx_builtin_max;
+static PyObject *__pyx_builtin_KeyError;
+static PyObject *__pyx_builtin_TypeError;
+static PyObject *__pyx_builtin_range;
+static PyObject *__pyx_builtin_ValueError;
+static PyObject *__pyx_builtin_UnicodeDecodeError;
+static PyObject *__pyx_builtin_RuntimeError;
+static PyObject *__pyx_builtin_OSError;
+static PyObject *__pyx_builtin_map;
+static PyObject *__pyx_builtin_RuntimeWarning;
+static PyObject *__pyx_builtin_StopIteration;
+static PyObject *__pyx_pf_5fiona_6ogrext_11NullHandler_emit(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v_record); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext__explode(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_coords); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_3_bounds(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_geometry); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_5calc_gdal_version_num(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_maj, PyObject *__pyx_v_min, PyObject *__pyx_v_rev); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7get_gdal_version_num(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_9get_gdal_release_name(CYTHON_UNUSED PyObject *__pyx_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_11featureRT(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_feature, PyObject *__pyx_v_collection); /* proto */
+static int __pyx_pf_5fiona_6ogrext_7Session___cinit__(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static void __pyx_pf_5fiona_6ogrext_7Session_2__dealloc__(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_4start(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self, PyObject *__pyx_v_collection); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_6stop(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_8get_fileencoding(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_10get_internalencoding(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_12get_length(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_14get_driver(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_16get_schema(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_18get_crs(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_20get_extent(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_22has_feature(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self, PyObject *__pyx_v_fid); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_24get_feature(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self, PyObject *__pyx_v_fid); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_26__getitem__(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self, PyObject *__pyx_v_item); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_7Session_28isactive(struct __pyx_obj_5fiona_6ogrext_Session *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_14WritingSession_start(struct __pyx_obj_5fiona_6ogrext_WritingSession *__pyx_v_self, PyObject *__pyx_v_collection); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_14WritingSession_9writerecs_validate_geometry_type(CYTHON_UNUSED PyObject *__pyx_self, CYTHON_UNUSED PyObject *__pyx_v_rec); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_14WritingSession_9writerecs_2validate_geometry_type(PyObject *__pyx_self, PyObject *__pyx_v_rec); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_14WritingSession_9writerecs_4validate_geometry_type(PyObject *__pyx_self, PyObject *__pyx_v_rec); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_14WritingSession_2writerecs(struct __pyx_obj_5fiona_6ogrext_WritingSession *__pyx_v_self, PyObject *__pyx_v_records, PyObject *__pyx_v_collection); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_14WritingSession_4sync(struct __pyx_obj_5fiona_6ogrext_WritingSession *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v_collection); /* proto */
+static int __pyx_pf_5fiona_6ogrext_8Iterator___init__(struct __pyx_obj_5fiona_6ogrext_Iterator *__pyx_v_self, PyObject *__pyx_v_collection, PyObject *__pyx_v_start, PyObject *__pyx_v_stop, PyObject *__pyx_v_step, PyObject *__pyx_v_bbox, PyObject *__pyx_v_mask); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_8Iterator_2__iter__(struct __pyx_obj_5fiona_6ogrext_Iterator *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_8Iterator_4_next(struct __pyx_obj_5fiona_6ogrext_Iterator *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_8Iterator_6__next__(struct __pyx_obj_5fiona_6ogrext_Iterator *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_13ItemsIterator___next__(struct __pyx_obj_5fiona_6ogrext_ItemsIterator *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_12KeysIterator___next__(struct __pyx_obj_5fiona_6ogrext_KeysIterator *__pyx_v_self); /* proto */
+static PyObject *__pyx_pf_5fiona_6ogrext_13_listlayers(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_path); /* proto */
+static PyObject *__pyx_tp_new_5fiona_6ogrext_FeatureBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext_OGRFeatureBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext_Session(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext_WritingSession(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext_Iterator(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext_ItemsIterator(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext_KeysIterator(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext___pyx_scope_struct___explode(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static PyObject *__pyx_tp_new_5fiona_6ogrext___pyx_scope_struct_1_writerecs(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
+static char __pyx_k_a[] = "a";
+static char __pyx_k_d[] = ":%d";
+static char __pyx_k_e[] = "e";
+static char __pyx_k_f[] = "f";
+static char __pyx_k_i[] = "i";
+static char __pyx_k_s[] = "+%s";
+static char __pyx_k_w[] = "w";
+static char __pyx_k_x[] = "x";
+static char __pyx_k_y[] = "y";
+static char __pyx_k_3D[] = "3D ";
+static char __pyx_k__7[] = "-";
+static char __pyx_k_id[] = "id";
+static char __pyx_k_os[] = "os";
+static char __pyx_k__12[] = "";
+static char __pyx_k__21[] = "=";
+static char __pyx_k__23[] = "+";
+static char __pyx_k__36[] = ":";
+static char __pyx_k__38[] = " ";
+static char __pyx_k__47[] = ".";
+static char __pyx_k_crs[] = "crs";
+static char __pyx_k_d_2[] = ".%d";
+static char __pyx_k_day[] = "day";
+static char __pyx_k_doc[] = "__doc__";
+static char __pyx_k_get[] = "get";
+static char __pyx_k_int[] = "int";
+static char __pyx_k_log[] = "log";
+static char __pyx_k_maj[] = "maj";
+static char __pyx_k_map[] = "map";
+static char __pyx_k_max[] = "max";
+static char __pyx_k_min[] = "min";
+static char __pyx_k_rec[] = "rec";
+static char __pyx_k_rev[] = "rev";
+static char __pyx_k_s_s[] = "+%s=%s";
+static char __pyx_k_six[] = "six";
+static char __pyx_k_str[] = "str";
+static char __pyx_k_sys[] = "sys";
+static char __pyx_k_zip[] = "zip";
+static char __pyx_k_EPSG[] = "EPSG";
+static char __pyx_k_args[] = "args";
+static char __pyx_k_bbox[] = "bbox";
+static char __pyx_k_date[] = "date";
+static char __pyx_k_emit[] = "emit";
+static char __pyx_k_epsg[] = "epsg:";
+static char __pyx_k_exit[] = "__exit__";
+static char __pyx_k_hour[] = "hour";
+static char __pyx_k_info[] = "info";
+static char __pyx_k_init[] = "init";
+static char __pyx_k_join[] = "join";
+static char __pyx_k_keys[] = "keys";
+static char __pyx_k_long[] = "long";
+static char __pyx_k_main[] = "__main__";
+static char __pyx_k_mask[] = "mask";
+static char __pyx_k_math[] = "math";
+static char __pyx_k_mode[] = "mode";
+static char __pyx_k_name[] = "name";
+static char __pyx_k_next[] = "_next";
+static char __pyx_k_path[] = "path";
+static char __pyx_k_self[] = "self";
+static char __pyx_k_send[] = "send";
+static char __pyx_k_step[] = "step";
+static char __pyx_k_stop[] = "stop";
+static char __pyx_k_test[] = "__test__";
+static char __pyx_k_time[] = "time";
+static char __pyx_k_type[] = "type";
+static char __pyx_k_warn[] = "warn";
+static char __pyx_k_year[] = "year";
+static char __pyx_k_Fiona[] = "Fiona";
+static char __pyx_k_Multi[] = "Multi";
+static char __pyx_k_Point[] = "Point";
+static char __pyx_k_close[] = "close";
+static char __pyx_k_debug[] = "debug";
+static char __pyx_k_enter[] = "__enter__";
+static char __pyx_k_float[] = "float";
+static char __pyx_k_index[] = "index";
+static char __pyx_k_items[] = "items";
+static char __pyx_k_month[] = "month";
+static char __pyx_k_range[] = "range";
+static char __pyx_k_split[] = "split";
+static char __pyx_k_start[] = "start";
+static char __pyx_k_strip[] = "strip";
+static char __pyx_k_throw[] = "throw";
+static char __pyx_k_upper[] = "upper";
+static char __pyx_k_utf_8[] = "utf-8";
+static char __pyx_k_bounds[] = "_bounds";
+static char __pyx_k_coords[] = "coords";
+static char __pyx_k_decode[] = "decode";
+static char __pyx_k_driver[] = "driver";
+static char __pyx_k_encode[] = "encode";
+static char __pyx_k_exists[] = "exists";
+static char __pyx_k_import[] = "__import__";
+static char __pyx_k_locale[] = "locale";
+static char __pyx_k_lstrip[] = "lstrip";
+static char __pyx_k_minute[] = "minute";
+static char __pyx_k_module[] = "__module__";
+static char __pyx_k_name_b[] = "name_b";
+static char __pyx_k_name_c[] = "name_c";
+static char __pyx_k_path_b[] = "path_b";
+static char __pyx_k_path_c[] = "path_c";
+static char __pyx_k_record[] = "record";
+static char __pyx_k_result[] = "result";
+static char __pyx_k_schema[] = "schema";
+static char __pyx_k_second[] = "second";
+static char __pyx_k_wktext[] = "wktext";
+static char __pyx_k_Feature[] = "Feature";
+static char __pyx_k_GeoJSON[] = "GeoJSON";
+static char __pyx_k_Handler[] = "Handler";
+static char __pyx_k_Index_d[] = "Index: %d";
+static char __pyx_k_OSError[] = "OSError";
+static char __pyx_k_Slice_r[] = "Slice: %r";
+static char __pyx_k_Unknown[] = "Unknown";
+static char __pyx_k_cogr_ds[] = "cogr_ds";
+static char __pyx_k_explode[] = "_explode";
+static char __pyx_k_feature[] = "feature";
+static char __pyx_k_logging[] = "logging";
+static char __pyx_k_no_defs[] = "no_defs";
+static char __pyx_k_prepare[] = "__prepare__";
+static char __pyx_k_records[] = "records";
+static char __pyx_k_session[] = "session";
+static char __pyx_k_CRSError[] = "CRSError";
+static char __pyx_k_ENCODING[] = "ENCODING";
+static char __pyx_k_KeyError[] = "KeyError";
+static char __pyx_k_Params_s[] = "Params: %s";
+static char __pyx_k_copysign[] = "copysign";
+static char __pyx_k_cpl_errs[] = "cpl_errs";
+static char __pyx_k_datetime[] = "datetime";
+static char __pyx_k_encoding[] = "encoding";
+static char __pyx_k_geometry[] = "geometry";
+static char __pyx_k_qualname[] = "__qualname__";
+static char __pyx_k_vsistdin[] = "/vsistdin/";
+static char __pyx_k_warnings[] = "warnings";
+static char __pyx_k_TypeError[] = "TypeError";
+static char __pyx_k_featureRT[] = "featureRT";
+static char __pyx_k_getLogger[] = "getLogger";
+static char __pyx_k_isoformat[] = "isoformat";
+static char __pyx_k_metaclass[] = "__metaclass__";
+static char __pyx_k_text_type[] = "text_type";
+static char __pyx_k_Geometry_s[] = "Geometry: %s";
+static char __pyx_k_ISO_8859_1[] = "ISO-8859-1";
+static char __pyx_k_Null_layer[] = "Null layer";
+static char __pyx_k_RandomRead[] = "RandomRead";
+static char __pyx_k_ValueError[] = "ValueError";
+static char __pyx_k_addHandler[] = "addHandler";
+static char __pyx_k_cogr_layer[] = "cogr_layer";
+static char __pyx_k_collection[] = "collection";
+static char __pyx_k_fiona__err[] = "fiona._err";
+static char __pyx_k_get_driver[] = "get_driver";
+static char __pyx_k_get_schema[] = "get_schema";
+static char __pyx_k_listlayers[] = "_listlayers";
+static char __pyx_k_parse_date[] = "parse_date";
+static char __pyx_k_parse_time[] = "parse_time";
+static char __pyx_k_properties[] = "properties";
+static char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
+static char __pyx_k_CreateField[] = "CreateField";
+static char __pyx_k_DeleteField[] = "DeleteField";
+static char __pyx_k_DriverError[] = "DriverError";
+static char __pyx_k_FIELD_TYPES[] = "FIELD_TYPES";
+static char __pyx_k_NullHandler[] = "NullHandler";
+static char __pyx_k_Null_driver[] = "Null driver";
+static char __pyx_k_OGRERR_NONE[] = "OGRERR_NONE";
+static char __pyx_k_OrderedDict[] = "OrderedDict";
+static char __pyx_k_RandomWrite[] = "RandomWrite";
+static char __pyx_k_SchemaError[] = "SchemaError";
+static char __pyx_k_VERSION_NUM[] = "VERSION_NUM";
+static char __pyx_k_coordinates[] = "coordinates";
+static char __pyx_k_fiona_odict[] = "fiona.odict";
+static char __pyx_k_layer_count[] = "layer_count";
+static char __pyx_k_layer_names[] = "layer_names";
+static char __pyx_k_Null_feature[] = "Null feature";
+static char __pyx_k_Null_layer_2[] = "Null layer: ";
+static char __pyx_k_RELEASE_NAME[] = "RELEASE_NAME";
+static char __pyx_k_RuntimeError[] = "RuntimeError";
+static char __pyx_k_Transactions[] = "Transactions";
+static char __pyx_k_cogr_feature[] = "cogr_feature";
+static char __pyx_k_fiona_errors[] = "fiona.errors";
+static char __pyx_k_fiona_ogrext[] = "fiona.ogrext";
+static char __pyx_k_string_types[] = "string_types";
+static char __pyx_k_Created_layer[] = "Created layer";
+static char __pyx_k_DeleteFeature[] = "DeleteFeature";
+static char __pyx_k_FastGetExtent[] = "FastGetExtent";
+static char __pyx_k_FionaDateType[] = "FionaDateType";
+static char __pyx_k_FionaTimeType[] = "FionaTimeType";
+static char __pyx_k_Null_geometry[] = "Null geometry";
+static char __pyx_k_ReorderFields[] = "ReorderFields";
+static char __pyx_k_Set_field_s_s[] = "Set field %s: %s";
+static char __pyx_k_StopIteration[] = "StopIteration";
+static char __pyx_k_StringsAsUTF8[] = "StringsAsUTF8";
+static char __pyx_k_cogr_geometry[] = "cogr_geometry";
+static char __pyx_k_fiona_rfc3339[] = "fiona.rfc3339";
+static char __pyx_k_integer_types[] = "integer_types";
+static char __pyx_k_AlterFieldDefn[] = "AlterFieldDefn";
+static char __pyx_k_Created_fields[] = "Created fields";
+static char __pyx_k_ESRI_Shapefile[] = "ESRI Shapefile";
+static char __pyx_k_GEOMETRY_TYPES[] = "GEOMETRY_TYPES";
+static char __pyx_k_OGRERR_FAILURE[] = "OGRERR_FAILURE";
+static char __pyx_k_OLC_RANDOMREAD[] = "OLC_RANDOMREAD";
+static char __pyx_k_RuntimeWarning[] = "RuntimeWarning";
+static char __pyx_k_SHAPE_ENCODING[] = "SHAPE_ENCODING";
+static char __pyx_k_parse_datetime[] = "parse_datetime";
+static char __pyx_k_CreateGeomField[] = "CreateGeomField";
+static char __pyx_k_FIELD_TYPES_MAP[] = "FIELD_TYPES_MAP";
+static char __pyx_k_Null_projection[] = "Null projection";
+static char __pyx_k_OLC_CREATEFIELD[] = "OLC_CREATEFIELD";
+static char __pyx_k_OLC_DELETEFIELD[] = "OLC_DELETEFIELD";
+static char __pyx_k_OLC_RANDOMWRITE[] = "OLC_RANDOMWRITE";
+static char __pyx_k_SequentialWrite[] = "SequentialWrite";
+static char __pyx_k_Writing_started[] = "Writing started";
+static char __pyx_k_fiona__geometry[] = "fiona._geometry";
+static char __pyx_k_Failed_to_open_s[] = "Failed to open %s";
+static char __pyx_k_FastFeatureCount[] = "FastFeatureCount";
+static char __pyx_k_NullHandler_emit[] = "NullHandler.emit";
+static char __pyx_k_Null_data_source[] = "Null data source";
+static char __pyx_k_OLC_TRANSACTIONS[] = "OLC_TRANSACTIONS";
+static char __pyx_k_get_fileencoding[] = "get_fileencoding";
+static char __pyx_k_FastSpatialFilter[] = "FastSpatialFilter";
+static char __pyx_k_FionaDateTimeType[] = "FionaDateTimeType";
+static char __pyx_k_Looking_up_s_in_s[] = "Looking up %s in %s";
+static char __pyx_k_OLC_DELETEFEATURE[] = "OLC_DELETEFEATURE";
+static char __pyx_k_OLC_FASTGETEXTENT[] = "OLC_FASTGETEXTENT";
+static char __pyx_k_OLC_REORDERFIELDS[] = "OLC_REORDERFIELDS";
+static char __pyx_k_OLC_STRINGSASUTF8[] = "OLC_STRINGSASUTF8";
+static char __pyx_k_Creating_field_s_s[] = "Creating field: %s %s";
+static char __pyx_k_FastSetNextByIndex[] = "FastSetNextByIndex";
+static char __pyx_k_OLC_ALTERFIELDDEFN[] = "OLC_ALTERFIELDDEFN";
+static char __pyx_k_UnicodeDecodeError[] = "UnicodeDecodeError";
+static char __pyx_k_OGRERR_CORRUPT_DATA[] = "OGRERR_CORRUPT_DATA";
+static char __pyx_k_OLC_CREATEGEOMFIELD[] = "OLC_CREATEGEOMFIELD";
+static char __pyx_k_OLC_SEQUENTIALWRITE[] = "OLC_SEQUENTIALWRITE";
+static char __pyx_k_Syncing_OGR_to_disk[] = "Syncing OGR to disk";
+static char __pyx_k_Invalid_field_type_s[] = "Invalid field type %s";
+static char __pyx_k_OLC_FASTFEATURECOUNT[] = "OLC_FASTFEATURECOUNT";
+static char __pyx_k_get_gdal_version_num[] = "get_gdal_version_num";
+static char __pyx_k_get_internalencoding[] = "get_internalencoding";
+static char __pyx_k_getpreferredencoding[] = "getpreferredencoding";
+static char __pyx_k_s_None_fieldtype_r_r[] = "%s: None, fieldtype: %r, %r";
+static char __pyx_k_Failed_to_get_layer_s[] = "Failed to get layer %s";
+static char __pyx_k_Got_coordinate_system[] = "Got coordinate system";
+static char __pyx_k_Null_field_definition[] = "Null field definition";
+static char __pyx_k_OGRERR_INVALID_HANDLE[] = "OGRERR_INVALID_HANDLE";
+static char __pyx_k_OGR_DETECTED_ENCODING[] = "OGR_DETECTED_ENCODING";
+static char __pyx_k_OLC_FASTSPATIALFILTER[] = "OLC_FASTSPATIALFILTER";
+static char __pyx_k_calc_gdal_version_num[] = "calc_gdal_version_num";
+static char __pyx_k_get_gdal_release_name[] = "get_gdal_release_name";
+static char __pyx_k_ogr_detected_encoding[] = "-ogr-detected-encoding";
+static char __pyx_k_Failed_to_sync_to_disk[] = "Failed to sync to disk";
+static char __pyx_k_NULL_spatial_reference[] = "NULL spatial reference";
+static char __pyx_k_OGRERR_NOT_ENOUGH_DATA[] = "OGRERR_NOT_ENOUGH_DATA";
+static char __pyx_k_OGRERR_UNSUPPORTED_SRS[] = "OGRERR_UNSUPPORTED_SRS";
+static char __pyx_k_OLC_FASTSETNEXTBYINDEX[] = "OLC_FASTSETNEXTBYINDEX";
+static char __pyx_k_validate_geometry_type[] = "validate_geometry_type";
+static char __pyx_k_Null_feature_definition[] = "Null feature definition";
+static char __pyx_k_PROJ_4_to_be_imported_r[] = "PROJ.4 to be imported: %r";
+static char __pyx_k_Failed_to_write_record_s[] = "Failed to write record: %s";
+static char __pyx_k_Invalid_field_name_ref_s[] = "Invalid field name ref: %s";
+static char __pyx_k_OGRERR_NOT_ENOUGH_MEMORY[] = "OGRERR_NOT_ENOUGH_MEMORY";
+static char __pyx_k_Null_field_name_reference[] = "Null field name reference";
+static char __pyx_k_slice_step_cannot_be_zero[] = "slice step cannot be zero";
+static char __pyx_k_Creating_feature_in_layer_s[] = "Creating feature in layer: %s";
+static char __pyx_k_No_data_available_at_path_s[] = "No data available at path '%s'";
+static char __pyx_k_No_such_file_or_directory_s[] = "No such file or directory %s";
+static char __pyx_k_Unexpected_proj_parameter_s[] = "Unexpected proj parameter %s";
+static char __pyx_k_OGRERR_UNSUPPORTED_OPERATION[] = "OGRERR_UNSUPPORTED_OPERATION";
+static char __pyx_k_Deleted_pre_existing_data_at_s[] = "Deleted pre-existing data at %s";
+static char __pyx_k_Failed_to_auto_identify_EPSG_d[] = "Failed to auto identify EPSG: %d";
+static char __pyx_k_Deleted_pre_existing_layer_at_s[] = "Deleted pre-existing layer at %s";
+static char __pyx_k_Layer_does_not_support_counting[] = "Layer does not support counting";
+static char __pyx_k_Read_cursor_may_be_altered_This[] = "Read cursor may be altered. This can lead to side effects";
+static char __pyx_k_Record_s_geometry_type_does_not[] = "Record's geometry type does not match collection schema's geometry type: %r != %r";
+static char __pyx_k_Skipping_field_s_invalid_type_s[] = "Skipping field %s: invalid type %s";
+static char __pyx_k_Users_sean_code_Fiona_fiona_ogr[] = "/Users/sean/code/Fiona/fiona/ogrext.pyx";
+static char __pyx_k_Failed_to_decode_s_using_s_codec[] = "Failed to decode %s using %s codec";
+static char __pyx_k_Failed_to_encode_s_using_s_codec[] = "Failed to encode %s using %s codec";
+static char __pyx_k_I_O_operation_on_closed_collecti[] = "I/O operation on closed collection";
+static char __pyx_k_Layer_does_not_supportOLCFastSet[] = "Layer does not supportOLCFastSetNextByIndex, negative step size may be slow";
+static char __pyx_k_OGRERR_UNSUPPORTED_GEOMETRY_TYPE[] = "OGRERR_UNSUPPORTED_GEOMETRY_TYPE";
+static char __pyx_k_Projection_not_found_cogr_crs_wa[] = "Projection not found (cogr_crs was NULL)";
+static char __pyx_k_Record_does_not_match_collection[] = "Record does not match collection schema: %r != %r";
+static char __pyx_k_mask_and_bbox_can_not_be_set_tog[] = "mask and bbox can not be set together";
+static char __pyx_k_writerecs_locals_validate_geomet[] = "writerecs.<locals>.validate_geometry_type";
+static PyObject *__pyx_kp_s_3D;
+static PyObject *__pyx_n_b_AlterFieldDefn;
+static PyObject *__pyx_n_s_CRSError;
+static PyObject *__pyx_n_b_CreateField;
+static PyObject *__pyx_n_b_CreateGeomField;
+static PyObject *__pyx_kp_s_Created_fields;
+static PyObject *__pyx_kp_s_Created_layer;
+static PyObject *__pyx_kp_s_Creating_feature_in_layer_s;
+static PyObject *__pyx_kp_s_Creating_field_s_s;
+static PyObject *__pyx_n_b_DeleteFeature;
+static PyObject *__pyx_n_b_DeleteField;
+static PyObject *__pyx_kp_s_Deleted_pre_existing_data_at_s;
+static PyObject *__pyx_kp_s_Deleted_pre_existing_layer_at_s;
+static PyObject *__pyx_n_s_DriverError;
+static PyObject *__pyx_n_s_EPSG;
+static PyObject *__pyx_kp_b_ESRI_Shapefile;
+static PyObject *__pyx_kp_s_ESRI_Shapefile;
+static PyObject *__pyx_n_s_FIELD_TYPES;
+static PyObject *__pyx_n_s_FIELD_TYPES_MAP;
+static PyObject *__pyx_kp_s_Failed_to_auto_identify_EPSG_d;
+static PyObject *__pyx_kp_s_Failed_to_decode_s_using_s_codec;
+static PyObject *__pyx_kp_s_Failed_to_encode_s_using_s_codec;
+static PyObject *__pyx_kp_s_Failed_to_get_layer_s;
+static PyObject *__pyx_kp_s_Failed_to_open_s;
+static PyObject *__pyx_kp_s_Failed_to_sync_to_disk;
+static PyObject *__pyx_kp_s_Failed_to_write_record_s;
+static PyObject *__pyx_n_b_FastFeatureCount;
+static PyObject *__pyx_n_b_FastGetExtent;
+static PyObject *__pyx_n_b_FastSetNextByIndex;
+static PyObject *__pyx_n_b_FastSpatialFilter;
+static PyObject *__pyx_n_s_Feature;
+static PyObject *__pyx_n_s_Fiona;
+static PyObject *__pyx_n_s_FionaDateTimeType;
+static PyObject *__pyx_n_s_FionaDateType;
+static PyObject *__pyx_n_s_FionaTimeType;
+static PyObject *__pyx_n_s_GEOMETRY_TYPES;
+static PyObject *__pyx_n_b_GeoJSON;
+static PyObject *__pyx_kp_s_Geometry_s;
+static PyObject *__pyx_kp_s_Got_coordinate_system;
+static PyObject *__pyx_n_s_Handler;
+static PyObject *__pyx_kp_s_ISO_8859_1;
+static PyObject *__pyx_kp_s_I_O_operation_on_closed_collecti;
+static PyObject *__pyx_kp_s_Index_d;
+static PyObject *__pyx_kp_s_Invalid_field_name_ref_s;
+static PyObject *__pyx_kp_s_Invalid_field_type_s;
+static PyObject *__pyx_n_s_KeyError;
+static PyObject *__pyx_kp_s_Layer_does_not_supportOLCFastSet;
+static PyObject *__pyx_kp_s_Layer_does_not_support_counting;
+static PyObject *__pyx_kp_s_Looking_up_s_in_s;
+static PyObject *__pyx_n_s_Multi;
+static PyObject *__pyx_kp_s_NULL_spatial_reference;
+static PyObject *__pyx_kp_s_No_data_available_at_path_s;
+static PyObject *__pyx_kp_s_No_such_file_or_directory_s;
+static PyObject *__pyx_n_s_NullHandler;
+static PyObject *__pyx_n_s_NullHandler_emit;
+static PyObject *__pyx_kp_s_Null_data_source;
+static PyObject *__pyx_kp_s_Null_driver;
+static PyObject *__pyx_kp_s_Null_feature;
+static PyObject *__pyx_kp_s_Null_feature_definition;
+static PyObject *__pyx_kp_s_Null_field_definition;
+static PyObject *__pyx_kp_s_Null_field_name_reference;
+static PyObject *__pyx_kp_s_Null_geometry;
+static PyObject *__pyx_kp_s_Null_layer;
+static PyObject *__pyx_kp_s_Null_layer_2;
+static PyObject *__pyx_kp_s_Null_projection;
+static PyObject *__pyx_n_s_OGRERR_CORRUPT_DATA;
+static PyObject *__pyx_n_s_OGRERR_FAILURE;
+static PyObject *__pyx_n_s_OGRERR_INVALID_HANDLE;
+static PyObject *__pyx_n_s_OGRERR_NONE;
+static PyObject *__pyx_n_s_OGRERR_NOT_ENOUGH_DATA;
+static PyObject *__pyx_n_s_OGRERR_NOT_ENOUGH_MEMORY;
+static PyObject *__pyx_n_s_OGRERR_UNSUPPORTED_GEOMETRY_TYPE;
+static PyObject *__pyx_n_s_OGRERR_UNSUPPORTED_OPERATION;
+static PyObject *__pyx_n_s_OGRERR_UNSUPPORTED_SRS;
+static PyObject *__pyx_n_s_OGR_DETECTED_ENCODING;
+static PyObject *__pyx_n_s_OLC_ALTERFIELDDEFN;
+static PyObject *__pyx_n_s_OLC_CREATEFIELD;
+static PyObject *__pyx_n_s_OLC_CREATEGEOMFIELD;
+static PyObject *__pyx_n_s_OLC_DELETEFEATURE;
+static PyObject *__pyx_n_s_OLC_DELETEFIELD;
+static PyObject *__pyx_n_s_OLC_FASTFEATURECOUNT;
+static PyObject *__pyx_n_s_OLC_FASTGETEXTENT;
+static PyObject *__pyx_n_s_OLC_FASTSETNEXTBYINDEX;
+static PyObject *__pyx_n_s_OLC_FASTSPATIALFILTER;
+static PyObject *__pyx_n_s_OLC_RANDOMREAD;
+static PyObject *__pyx_n_s_OLC_RANDOMWRITE;
+static PyObject *__pyx_n_s_OLC_REORDERFIELDS;
+static PyObject *__pyx_n_s_OLC_SEQUENTIALWRITE;
+static PyObject *__pyx_n_s_OLC_STRINGSASUTF8;
+static PyObject *__pyx_n_s_OLC_TRANSACTIONS;
+static PyObject *__pyx_n_s_OSError;
+static PyObject *__pyx_n_s_OrderedDict;
+static PyObject *__pyx_kp_s_PROJ_4_to_be_imported_r;
+static PyObject *__pyx_kp_s_Params_s;
+static PyObject *__pyx_n_s_Point;
+static PyObject *__pyx_kp_s_Projection_not_found_cogr_crs_wa;
+static PyObject *__pyx_n_b_RandomRead;
+static PyObject *__pyx_n_b_RandomWrite;
+static PyObject *__pyx_kp_s_Read_cursor_may_be_altered_This;
+static PyObject *__pyx_kp_s_Record_does_not_match_collection;
+static PyObject *__pyx_kp_s_Record_s_geometry_type_does_not;
+static PyObject *__pyx_n_b_ReorderFields;
+static PyObject *__pyx_n_s_RuntimeError;
+static PyObject *__pyx_n_s_RuntimeWarning;
+static PyObject *__pyx_n_s_SchemaError;
+static PyObject *__pyx_n_b_SequentialWrite;
+static PyObject *__pyx_kp_s_Set_field_s_s;
+static PyObject *__pyx_kp_s_Skipping_field_s_invalid_type_s;
+static PyObject *__pyx_kp_s_Slice_r;
+static PyObject *__pyx_n_s_StopIteration;
+static PyObject *__pyx_n_b_StringsAsUTF8;
+static PyObject *__pyx_kp_s_Syncing_OGR_to_disk;
+static PyObject *__pyx_n_b_Transactions;
+static PyObject *__pyx_n_s_TypeError;
+static PyObject *__pyx_kp_s_Unexpected_proj_parameter_s;
+static PyObject *__pyx_n_s_UnicodeDecodeError;
+static PyObject *__pyx_n_s_Unknown;
+static PyObject *__pyx_kp_s_Users_sean_code_Fiona_fiona_ogr;
+static PyObject *__pyx_n_s_ValueError;
+static PyObject *__pyx_kp_s_Writing_started;
+static PyObject *__pyx_kp_s__12;
+static PyObject *__pyx_kp_s__21;
+static PyObject *__pyx_kp_s__23;
+static PyObject *__pyx_kp_s__36;
+static PyObject *__pyx_kp_s__38;
+static PyObject *__pyx_kp_s__47;
+static PyObject *__pyx_kp_s__7;
+static PyObject *__pyx_n_s_a;
+static PyObject *__pyx_n_s_addHandler;
+static PyObject *__pyx_n_s_args;
+static PyObject *__pyx_n_s_bbox;
+static PyObject *__pyx_n_s_bounds;
+static PyObject *__pyx_n_s_calc_gdal_version_num;
+static PyObject *__pyx_n_s_close;
+static PyObject *__pyx_n_s_cogr_ds;
+static PyObject *__pyx_n_s_cogr_feature;
+static PyObject *__pyx_n_s_cogr_geometry;
+static PyObject *__pyx_n_s_cogr_layer;
+static PyObject *__pyx_n_s_collection;
+static PyObject *__pyx_n_s_coordinates;
+static PyObject *__pyx_n_s_coords;
+static PyObject *__pyx_n_s_copysign;
+static PyObject *__pyx_n_s_cpl_errs;
+static PyObject *__pyx_n_s_crs;
+static PyObject *__pyx_kp_s_d;
+static PyObject *__pyx_kp_s_d_2;
+static PyObject *__pyx_n_s_date;
+static PyObject *__pyx_n_s_datetime;
+static PyObject *__pyx_n_s_day;
+static PyObject *__pyx_n_s_debug;
+static PyObject *__pyx_n_s_decode;
+static PyObject *__pyx_n_s_doc;
+static PyObject *__pyx_n_s_driver;
+static PyObject *__pyx_n_s_e;
+static PyObject *__pyx_n_s_emit;
+static PyObject *__pyx_n_s_encode;
+static PyObject *__pyx_n_s_encoding;
+static PyObject *__pyx_n_s_enter;
+static PyObject *__pyx_kp_s_epsg;
+static PyObject *__pyx_n_s_exists;
+static PyObject *__pyx_n_s_exit;
+static PyObject *__pyx_n_s_explode;
+static PyObject *__pyx_n_s_f;
+static PyObject *__pyx_n_s_feature;
+static PyObject *__pyx_n_s_featureRT;
+static PyObject *__pyx_n_s_fiona__err;
+static PyObject *__pyx_n_s_fiona__geometry;
+static PyObject *__pyx_n_s_fiona_errors;
+static PyObject *__pyx_n_s_fiona_odict;
+static PyObject *__pyx_n_s_fiona_ogrext;
+static PyObject *__pyx_n_s_fiona_rfc3339;
+static PyObject *__pyx_n_s_float;
+static PyObject *__pyx_n_s_geometry;
+static PyObject *__pyx_n_s_get;
+static PyObject *__pyx_n_s_getLogger;
+static PyObject *__pyx_n_s_get_driver;
+static PyObject *__pyx_n_s_get_fileencoding;
+static PyObject *__pyx_n_s_get_gdal_release_name;
+static PyObject *__pyx_n_s_get_gdal_version_num;
+static PyObject *__pyx_n_s_get_internalencoding;
+static PyObject *__pyx_n_s_get_schema;
+static PyObject *__pyx_n_s_getpreferredencoding;
+static PyObject *__pyx_n_s_hour;
+static PyObject *__pyx_n_s_i;
+static PyObject *__pyx_n_s_id;
+static PyObject *__pyx_n_s_import;
+static PyObject *__pyx_n_s_index;
+static PyObject *__pyx_n_s_info;
+static PyObject *__pyx_n_s_init;
+static PyObject *__pyx_n_s_int;
+static PyObject *__pyx_n_s_integer_types;
+static PyObject *__pyx_n_s_isoformat;
+static PyObject *__pyx_n_s_items;
+static PyObject *__pyx_n_s_join;
+static PyObject *__pyx_n_s_keys;
+static PyObject *__pyx_n_s_layer_count;
+static PyObject *__pyx_n_s_layer_names;
+static PyObject *__pyx_n_s_listlayers;
+static PyObject *__pyx_n_s_locale;
+static PyObject *__pyx_n_s_log;
+static PyObject *__pyx_n_s_logging;
+static PyObject *__pyx_n_s_long;
+static PyObject *__pyx_n_s_lstrip;
+static PyObject *__pyx_n_s_main;
+static PyObject *__pyx_n_s_maj;
+static PyObject *__pyx_n_s_map;
+static PyObject *__pyx_n_s_mask;
+static PyObject *__pyx_kp_s_mask_and_bbox_can_not_be_set_tog;
+static PyObject *__pyx_n_s_math;
+static PyObject *__pyx_n_s_max;
+static PyObject *__pyx_n_s_metaclass;
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+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
+  "Builds an OGR Feature from a Fiona feature mapping.\n\n    Allocates one OGR Feature which should be destroyed by the caller.\n    Borrows a layer definition from the collection.\n    ", /*tp_doc*/
+  0, /*tp_traverse*/
+  0, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  0, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext_OGRFeatureBuilder, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext_Session(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_5fiona_6ogrext_Session *p;
+  PyObject *o;
+  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
+    o = (*t->tp_alloc)(t, 0);
+  } else {
+    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
+  }
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_5fiona_6ogrext_Session *)o);
+  p->_fileencoding = Py_None; Py_INCREF(Py_None);
+  p->_encoding = Py_None; Py_INCREF(Py_None);
+  p->collection = Py_None; Py_INCREF(Py_None);
+  if (unlikely(__pyx_pw_5fiona_6ogrext_7Session_1__cinit__(o, __pyx_empty_tuple, NULL) < 0)) {
+    Py_DECREF(o); o = 0;
+  }
+  return o;
+}
+
+static void __pyx_tp_dealloc_5fiona_6ogrext_Session(PyObject *o) {
+  struct __pyx_obj_5fiona_6ogrext_Session *p = (struct __pyx_obj_5fiona_6ogrext_Session *)o;
+  #if PY_VERSION_HEX >= 0x030400a1
+  if (unlikely(Py_TYPE(o)->tp_finalize) && !_PyGC_FINALIZED(o)) {
+    if (PyObject_CallFinalizerFromDealloc(o)) return;
+  }
+  #endif
+  PyObject_GC_UnTrack(o);
+  {
+    PyObject *etype, *eval, *etb;
+    PyErr_Fetch(&etype, &eval, &etb);
+    ++Py_REFCNT(o);
+    __pyx_pw_5fiona_6ogrext_7Session_3__dealloc__(o);
+    --Py_REFCNT(o);
+    PyErr_Restore(etype, eval, etb);
+  }
+  Py_CLEAR(p->_fileencoding);
+  Py_CLEAR(p->_encoding);
+  Py_CLEAR(p->collection);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_5fiona_6ogrext_Session(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_6ogrext_Session *p = (struct __pyx_obj_5fiona_6ogrext_Session *)o;
+  if (p->_fileencoding) {
+    e = (*v)(p->_fileencoding, a); if (e) return e;
+  }
+  if (p->_encoding) {
+    e = (*v)(p->_encoding, a); if (e) return e;
+  }
+  if (p->collection) {
+    e = (*v)(p->collection, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_6ogrext_Session(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_6ogrext_Session *p = (struct __pyx_obj_5fiona_6ogrext_Session *)o;
+  tmp = ((PyObject*)p->_fileencoding);
+  p->_fileencoding = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->_encoding);
+  p->_encoding = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->collection);
+  p->collection = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+static PyObject *__pyx_sq_item_5fiona_6ogrext_Session(PyObject *o, Py_ssize_t i) {
+  PyObject *r;
+  PyObject *x = PyInt_FromSsize_t(i); if(!x) return 0;
+  r = Py_TYPE(o)->tp_as_mapping->mp_subscript(o, x);
+  Py_DECREF(x);
+  return r;
+}
+
+static PyMethodDef __pyx_methods_5fiona_6ogrext_Session[] = {
+  {"start", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_5start, METH_O, 0},
+  {"stop", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_7stop, METH_NOARGS, 0},
+  {"get_fileencoding", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_9get_fileencoding, METH_NOARGS, 0},
+  {"get_internalencoding", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_11get_internalencoding, METH_NOARGS, 0},
+  {"get_length", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_13get_length, METH_NOARGS, 0},
+  {"get_driver", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_15get_driver, METH_NOARGS, 0},
+  {"get_schema", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_17get_schema, METH_NOARGS, 0},
+  {"get_crs", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_19get_crs, METH_NOARGS, 0},
+  {"get_extent", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_21get_extent, METH_NOARGS, 0},
+  {"has_feature", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_23has_feature, METH_O, __pyx_doc_5fiona_6ogrext_7Session_22has_feature},
+  {"get_feature", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_25get_feature, METH_O, __pyx_doc_5fiona_6ogrext_7Session_24get_feature},
+  {"isactive", (PyCFunction)__pyx_pw_5fiona_6ogrext_7Session_29isactive, METH_NOARGS, 0},
+  {0, 0, 0, 0}
+};
+
+static PySequenceMethods __pyx_tp_as_sequence_Session = {
+  0, /*sq_length*/
+  0, /*sq_concat*/
+  0, /*sq_repeat*/
+  __pyx_sq_item_5fiona_6ogrext_Session, /*sq_item*/
+  0, /*sq_slice*/
+  0, /*sq_ass_item*/
+  0, /*sq_ass_slice*/
+  0, /*sq_contains*/
+  0, /*sq_inplace_concat*/
+  0, /*sq_inplace_repeat*/
+};
+
+static PyMappingMethods __pyx_tp_as_mapping_Session = {
+  0, /*mp_length*/
+  __pyx_pw_5fiona_6ogrext_7Session_27__getitem__, /*mp_subscript*/
+  0, /*mp_ass_subscript*/
+};
+
+static PyTypeObject __pyx_type_5fiona_6ogrext_Session = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.Session", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext_Session), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext_Session, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  &__pyx_tp_as_sequence_Session, /*tp_as_sequence*/
+  &__pyx_tp_as_mapping_Session, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext_Session, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext_Session, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_5fiona_6ogrext_Session, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext_Session, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext_WritingSession(PyTypeObject *t, PyObject *a, PyObject *k) {
+  struct __pyx_obj_5fiona_6ogrext_WritingSession *p;
+  PyObject *o = __pyx_tp_new_5fiona_6ogrext_Session(t, a, k);
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_5fiona_6ogrext_WritingSession *)o);
+  p->_schema_mapping = Py_None; Py_INCREF(Py_None);
+  return o;
+}
+
+static void __pyx_tp_dealloc_5fiona_6ogrext_WritingSession(PyObject *o) {
+  struct __pyx_obj_5fiona_6ogrext_WritingSession *p = (struct __pyx_obj_5fiona_6ogrext_WritingSession *)o;
+  #if PY_VERSION_HEX >= 0x030400a1
+  if (unlikely(Py_TYPE(o)->tp_finalize) && !_PyGC_FINALIZED(o)) {
+    if (PyObject_CallFinalizerFromDealloc(o)) return;
+  }
+  #endif
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->_schema_mapping);
+  PyObject_GC_Track(o);
+  __pyx_tp_dealloc_5fiona_6ogrext_Session(o);
+}
+
+static int __pyx_tp_traverse_5fiona_6ogrext_WritingSession(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_6ogrext_WritingSession *p = (struct __pyx_obj_5fiona_6ogrext_WritingSession *)o;
+  e = __pyx_tp_traverse_5fiona_6ogrext_Session(o, v, a); if (e) return e;
+  if (p->_schema_mapping) {
+    e = (*v)(p->_schema_mapping, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_6ogrext_WritingSession(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_6ogrext_WritingSession *p = (struct __pyx_obj_5fiona_6ogrext_WritingSession *)o;
+  __pyx_tp_clear_5fiona_6ogrext_Session(o);
+  tmp = ((PyObject*)p->_schema_mapping);
+  p->_schema_mapping = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_5fiona_6ogrext_WritingSession[] = {
+  {"start", (PyCFunction)__pyx_pw_5fiona_6ogrext_14WritingSession_1start, METH_O, 0},
+  {"writerecs", (PyCFunction)__pyx_pw_5fiona_6ogrext_14WritingSession_3writerecs, METH_VARARGS|METH_KEYWORDS, __pyx_doc_5fiona_6ogrext_14WritingSession_2writerecs},
+  {"sync", (PyCFunction)__pyx_pw_5fiona_6ogrext_14WritingSession_5sync, METH_O, __pyx_doc_5fiona_6ogrext_14WritingSession_4sync},
+  {0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_5fiona_6ogrext_WritingSession = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.WritingSession", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext_WritingSession), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext_WritingSession, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext_WritingSession, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext_WritingSession, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  __pyx_methods_5fiona_6ogrext_WritingSession, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext_WritingSession, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext_Iterator(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  struct __pyx_obj_5fiona_6ogrext_Iterator *p;
+  PyObject *o;
+  if (likely((t->tp_flags & Py_TPFLAGS_IS_ABSTRACT) == 0)) {
+    o = (*t->tp_alloc)(t, 0);
+  } else {
+    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
+  }
+  if (unlikely(!o)) return 0;
+  p = ((struct __pyx_obj_5fiona_6ogrext_Iterator *)o);
+  p->collection = Py_None; Py_INCREF(Py_None);
+  p->encoding = Py_None; Py_INCREF(Py_None);
+  p->stop = Py_None; Py_INCREF(Py_None);
+  p->start = Py_None; Py_INCREF(Py_None);
+  p->step = Py_None; Py_INCREF(Py_None);
+  p->fastindex = Py_None; Py_INCREF(Py_None);
+  p->stepsign = Py_None; Py_INCREF(Py_None);
+  return o;
+}
+
+static void __pyx_tp_dealloc_5fiona_6ogrext_Iterator(PyObject *o) {
+  struct __pyx_obj_5fiona_6ogrext_Iterator *p = (struct __pyx_obj_5fiona_6ogrext_Iterator *)o;
+  #if PY_VERSION_HEX >= 0x030400a1
+  if (unlikely(Py_TYPE(o)->tp_finalize) && !_PyGC_FINALIZED(o)) {
+    if (PyObject_CallFinalizerFromDealloc(o)) return;
+  }
+  #endif
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->collection);
+  Py_CLEAR(p->encoding);
+  Py_CLEAR(p->stop);
+  Py_CLEAR(p->start);
+  Py_CLEAR(p->step);
+  Py_CLEAR(p->fastindex);
+  Py_CLEAR(p->stepsign);
+  (*Py_TYPE(o)->tp_free)(o);
+}
+
+static int __pyx_tp_traverse_5fiona_6ogrext_Iterator(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_6ogrext_Iterator *p = (struct __pyx_obj_5fiona_6ogrext_Iterator *)o;
+  if (p->collection) {
+    e = (*v)(p->collection, a); if (e) return e;
+  }
+  if (p->encoding) {
+    e = (*v)(p->encoding, a); if (e) return e;
+  }
+  if (p->stop) {
+    e = (*v)(p->stop, a); if (e) return e;
+  }
+  if (p->start) {
+    e = (*v)(p->start, a); if (e) return e;
+  }
+  if (p->step) {
+    e = (*v)(p->step, a); if (e) return e;
+  }
+  if (p->fastindex) {
+    e = (*v)(p->fastindex, a); if (e) return e;
+  }
+  if (p->stepsign) {
+    e = (*v)(p->stepsign, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_6ogrext_Iterator(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_6ogrext_Iterator *p = (struct __pyx_obj_5fiona_6ogrext_Iterator *)o;
+  tmp = ((PyObject*)p->collection);
+  p->collection = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->encoding);
+  p->encoding = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->stop);
+  p->stop = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->start);
+  p->start = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->step);
+  p->step = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->fastindex);
+  p->fastindex = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->stepsign);
+  p->stepsign = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyMethodDef __pyx_methods_5fiona_6ogrext_Iterator[] = {
+  {"_next", (PyCFunction)__pyx_pw_5fiona_6ogrext_8Iterator_5_next, METH_NOARGS, __pyx_doc_5fiona_6ogrext_8Iterator_4_next},
+  {"__next__", (PyCFunction)__pyx_pw_5fiona_6ogrext_8Iterator_7__next__, METH_NOARGS|METH_COEXIST, 0},
+  {0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_5fiona_6ogrext_Iterator = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.Iterator", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext_Iterator), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext_Iterator, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  "Provides iterated access to feature data.\n    ", /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext_Iterator, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext_Iterator, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  __pyx_pw_5fiona_6ogrext_8Iterator_3__iter__, /*tp_iter*/
+  __pyx_pw_5fiona_6ogrext_8Iterator_7__next__, /*tp_iternext*/
+  __pyx_methods_5fiona_6ogrext_Iterator, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  __pyx_pw_5fiona_6ogrext_8Iterator_1__init__, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext_Iterator, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext_ItemsIterator(PyTypeObject *t, PyObject *a, PyObject *k) {
+  PyObject *o = __pyx_tp_new_5fiona_6ogrext_Iterator(t, a, k);
+  if (unlikely(!o)) return 0;
+  return o;
+}
+
+static PyMethodDef __pyx_methods_5fiona_6ogrext_ItemsIterator[] = {
+  {"__next__", (PyCFunction)__pyx_pw_5fiona_6ogrext_13ItemsIterator_1__next__, METH_NOARGS|METH_COEXIST, 0},
+  {0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_5fiona_6ogrext_ItemsIterator = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.ItemsIterator", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext_ItemsIterator), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext_Iterator, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext_Iterator, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext_Iterator, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  #if CYTHON_COMPILING_IN_PYPY
+  __pyx_pw_5fiona_6ogrext_8Iterator_3__iter__, /*tp_iter*/
+  #else
+  0, /*tp_iter*/
+  #endif
+  __pyx_pw_5fiona_6ogrext_13ItemsIterator_1__next__, /*tp_iternext*/
+  __pyx_methods_5fiona_6ogrext_ItemsIterator, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  #if CYTHON_COMPILING_IN_PYPY
+  __pyx_pw_5fiona_6ogrext_8Iterator_1__init__, /*tp_init*/
+  #else
+  0, /*tp_init*/
+  #endif
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext_ItemsIterator, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext_KeysIterator(PyTypeObject *t, PyObject *a, PyObject *k) {
+  PyObject *o = __pyx_tp_new_5fiona_6ogrext_Iterator(t, a, k);
+  if (unlikely(!o)) return 0;
+  return o;
+}
+
+static PyMethodDef __pyx_methods_5fiona_6ogrext_KeysIterator[] = {
+  {"__next__", (PyCFunction)__pyx_pw_5fiona_6ogrext_12KeysIterator_1__next__, METH_NOARGS|METH_COEXIST, 0},
+  {0, 0, 0, 0}
+};
+
+static PyTypeObject __pyx_type_5fiona_6ogrext_KeysIterator = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.KeysIterator", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext_KeysIterator), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext_Iterator, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext_Iterator, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext_Iterator, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  #if CYTHON_COMPILING_IN_PYPY
+  __pyx_pw_5fiona_6ogrext_8Iterator_3__iter__, /*tp_iter*/
+  #else
+  0, /*tp_iter*/
+  #endif
+  __pyx_pw_5fiona_6ogrext_12KeysIterator_1__next__, /*tp_iternext*/
+  __pyx_methods_5fiona_6ogrext_KeysIterator, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  #if CYTHON_COMPILING_IN_PYPY
+  __pyx_pw_5fiona_6ogrext_8Iterator_1__init__, /*tp_init*/
+  #else
+  0, /*tp_init*/
+  #endif
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext_KeysIterator, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *__pyx_freelist_5fiona_6ogrext___pyx_scope_struct___explode[8];
+static int __pyx_freecount_5fiona_6ogrext___pyx_scope_struct___explode = 0;
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext___pyx_scope_struct___explode(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  PyObject *o;
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_5fiona_6ogrext___pyx_scope_struct___explode > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode)))) {
+    o = (PyObject*)__pyx_freelist_5fiona_6ogrext___pyx_scope_struct___explode[--__pyx_freecount_5fiona_6ogrext___pyx_scope_struct___explode];
+    memset(o, 0, sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode));
+    (void) PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  return o;
+}
+
+static void __pyx_tp_dealloc_5fiona_6ogrext___pyx_scope_struct___explode(PyObject *o) {
+  struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *p = (struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_coords);
+  Py_CLEAR(p->__pyx_v_e);
+  Py_CLEAR(p->__pyx_v_f);
+  Py_CLEAR(p->__pyx_t_0);
+  Py_CLEAR(p->__pyx_t_3);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_5fiona_6ogrext___pyx_scope_struct___explode < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode)))) {
+    __pyx_freelist_5fiona_6ogrext___pyx_scope_struct___explode[__pyx_freecount_5fiona_6ogrext___pyx_scope_struct___explode++] = ((struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
+  }
+}
+
+static int __pyx_tp_traverse_5fiona_6ogrext___pyx_scope_struct___explode(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *p = (struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *)o;
+  if (p->__pyx_v_coords) {
+    e = (*v)(p->__pyx_v_coords, a); if (e) return e;
+  }
+  if (p->__pyx_v_e) {
+    e = (*v)(p->__pyx_v_e, a); if (e) return e;
+  }
+  if (p->__pyx_v_f) {
+    e = (*v)(p->__pyx_v_f, a); if (e) return e;
+  }
+  if (p->__pyx_t_0) {
+    e = (*v)(p->__pyx_t_0, a); if (e) return e;
+  }
+  if (p->__pyx_t_3) {
+    e = (*v)(p->__pyx_t_3, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_6ogrext___pyx_scope_struct___explode(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *p = (struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode *)o;
+  tmp = ((PyObject*)p->__pyx_v_coords);
+  p->__pyx_v_coords = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_e);
+  p->__pyx_v_e = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_v_f);
+  p->__pyx_v_f = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_0);
+  p->__pyx_t_0 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  tmp = ((PyObject*)p->__pyx_t_3);
+  p->__pyx_t_3 = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_5fiona_6ogrext___pyx_scope_struct___explode = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.__pyx_scope_struct___explode", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct___explode), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext___pyx_scope_struct___explode, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext___pyx_scope_struct___explode, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext___pyx_scope_struct___explode, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  0, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext___pyx_scope_struct___explode, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *__pyx_freelist_5fiona_6ogrext___pyx_scope_struct_1_writerecs[8];
+static int __pyx_freecount_5fiona_6ogrext___pyx_scope_struct_1_writerecs = 0;
+
+static PyObject *__pyx_tp_new_5fiona_6ogrext___pyx_scope_struct_1_writerecs(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
+  PyObject *o;
+  if (CYTHON_COMPILING_IN_CPYTHON && likely((__pyx_freecount_5fiona_6ogrext___pyx_scope_struct_1_writerecs > 0) & (t->tp_basicsize == sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs)))) {
+    o = (PyObject*)__pyx_freelist_5fiona_6ogrext___pyx_scope_struct_1_writerecs[--__pyx_freecount_5fiona_6ogrext___pyx_scope_struct_1_writerecs];
+    memset(o, 0, sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs));
+    (void) PyObject_INIT(o, t);
+    PyObject_GC_Track(o);
+  } else {
+    o = (*t->tp_alloc)(t, 0);
+    if (unlikely(!o)) return 0;
+  }
+  return o;
+}
+
+static void __pyx_tp_dealloc_5fiona_6ogrext___pyx_scope_struct_1_writerecs(PyObject *o) {
+  struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *p = (struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *)o;
+  PyObject_GC_UnTrack(o);
+  Py_CLEAR(p->__pyx_v_schema_geom_type);
+  if (CYTHON_COMPILING_IN_CPYTHON && ((__pyx_freecount_5fiona_6ogrext___pyx_scope_struct_1_writerecs < 8) & (Py_TYPE(o)->tp_basicsize == sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs)))) {
+    __pyx_freelist_5fiona_6ogrext___pyx_scope_struct_1_writerecs[__pyx_freecount_5fiona_6ogrext___pyx_scope_struct_1_writerecs++] = ((struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *)o);
+  } else {
+    (*Py_TYPE(o)->tp_free)(o);
+  }
+}
+
+static int __pyx_tp_traverse_5fiona_6ogrext___pyx_scope_struct_1_writerecs(PyObject *o, visitproc v, void *a) {
+  int e;
+  struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *p = (struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *)o;
+  if (p->__pyx_v_schema_geom_type) {
+    e = (*v)(p->__pyx_v_schema_geom_type, a); if (e) return e;
+  }
+  return 0;
+}
+
+static int __pyx_tp_clear_5fiona_6ogrext___pyx_scope_struct_1_writerecs(PyObject *o) {
+  PyObject* tmp;
+  struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *p = (struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs *)o;
+  tmp = ((PyObject*)p->__pyx_v_schema_geom_type);
+  p->__pyx_v_schema_geom_type = Py_None; Py_INCREF(Py_None);
+  Py_XDECREF(tmp);
+  return 0;
+}
+
+static PyTypeObject __pyx_type_5fiona_6ogrext___pyx_scope_struct_1_writerecs = {
+  PyVarObject_HEAD_INIT(0, 0)
+  "fiona.ogrext.__pyx_scope_struct_1_writerecs", /*tp_name*/
+  sizeof(struct __pyx_obj_5fiona_6ogrext___pyx_scope_struct_1_writerecs), /*tp_basicsize*/
+  0, /*tp_itemsize*/
+  __pyx_tp_dealloc_5fiona_6ogrext___pyx_scope_struct_1_writerecs, /*tp_dealloc*/
+  0, /*tp_print*/
+  0, /*tp_getattr*/
+  0, /*tp_setattr*/
+  #if PY_MAJOR_VERSION < 3
+  0, /*tp_compare*/
+  #else
+  0, /*reserved*/
+  #endif
+  0, /*tp_repr*/
+  0, /*tp_as_number*/
+  0, /*tp_as_sequence*/
+  0, /*tp_as_mapping*/
+  0, /*tp_hash*/
+  0, /*tp_call*/
+  0, /*tp_str*/
+  0, /*tp_getattro*/
+  0, /*tp_setattro*/
+  0, /*tp_as_buffer*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  0, /*tp_doc*/
+  __pyx_tp_traverse_5fiona_6ogrext___pyx_scope_struct_1_writerecs, /*tp_traverse*/
+  __pyx_tp_clear_5fiona_6ogrext___pyx_scope_struct_1_writerecs, /*tp_clear*/
+  0, /*tp_richcompare*/
+  0, /*tp_weaklistoffset*/
+  0, /*tp_iter*/
+  0, /*tp_iternext*/
+  0, /*tp_methods*/
+  0, /*tp_members*/
+  0, /*tp_getset*/
+  0, /*tp_base*/
+  0, /*tp_dict*/
+  0, /*tp_descr_get*/
+  0, /*tp_descr_set*/
+  0, /*tp_dictoffset*/
+  0, /*tp_init*/
+  0, /*tp_alloc*/
+  __pyx_tp_new_5fiona_6ogrext___pyx_scope_struct_1_writerecs, /*tp_new*/
+  0, /*tp_free*/
+  0, /*tp_is_gc*/
+  0, /*tp_bases*/
+  0, /*tp_mro*/
+  0, /*tp_cache*/
+  0, /*tp_subclasses*/
+  0, /*tp_weaklist*/
+  0, /*tp_del*/
+  0, /*tp_version_tag*/
+  #if PY_VERSION_HEX >= 0x030400a1
+  0, /*tp_finalize*/
+  #endif
+};
+
+static PyMethodDef __pyx_methods[] = {
+  {0, 0, 0, 0}
+};
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef __pyx_moduledef = {
+  #if PY_VERSION_HEX < 0x03020000
+    { PyObject_HEAD_INIT(NULL) NULL, 0, NULL },
+  #else
+    PyModuleDef_HEAD_INIT,
+  #endif
+    "ogrext",
+    0, /* m_doc */
+    -1, /* m_size */
+    __pyx_methods /* m_methods */,
+    NULL, /* m_reload */
+    NULL, /* m_traverse */
+    NULL, /* m_clear */
+    NULL /* m_free */
+};
+#endif
+
+static __Pyx_StringTabEntry __pyx_string_tab[] = {
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+  {&__pyx_n_b_AlterFieldDefn, __pyx_k_AlterFieldDefn, sizeof(__pyx_k_AlterFieldDefn), 0, 0, 0, 1},
+  {&__pyx_n_s_CRSError, __pyx_k_CRSError, sizeof(__pyx_k_CRSError), 0, 0, 1, 1},
+  {&__pyx_n_b_CreateField, __pyx_k_CreateField, sizeof(__pyx_k_CreateField), 0, 0, 0, 1},
+  {&__pyx_n_b_CreateGeomField, __pyx_k_CreateGeomField, sizeof(__pyx_k_CreateGeomField), 0, 0, 0, 1},
+  {&__pyx_kp_s_Created_fields, __pyx_k_Created_fields, sizeof(__pyx_k_Created_fields), 0, 0, 1, 0},
+  {&__pyx_kp_s_Created_layer, __pyx_k_Created_layer, sizeof(__pyx_k_Created_layer), 0, 0, 1, 0},
+  {&__pyx_kp_s_Creating_feature_in_layer_s, __pyx_k_Creating_feature_in_layer_s, sizeof(__pyx_k_Creating_feature_in_layer_s), 0, 0, 1, 0},
+  {&__pyx_kp_s_Creating_field_s_s, __pyx_k_Creating_field_s_s, sizeof(__pyx_k_Creating_field_s_s), 0, 0, 1, 0},
+  {&__pyx_n_b_DeleteFeature, __pyx_k_DeleteFeature, sizeof(__pyx_k_DeleteFeature), 0, 0, 0, 1},
+  {&__pyx_n_b_DeleteField, __pyx_k_DeleteField, sizeof(__pyx_k_DeleteField), 0, 0, 0, 1},
+  {&__pyx_kp_s_Deleted_pre_existing_data_at_s, __pyx_k_Deleted_pre_existing_data_at_s, sizeof(__pyx_k_Deleted_pre_existing_data_at_s), 0, 0, 1, 0},
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+  {&__pyx_kp_b_ESRI_Shapefile, __pyx_k_ESRI_Shapefile, sizeof(__pyx_k_ESRI_Shapefile), 0, 0, 0, 0},
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+ *             self.cogr_layer = ograpi.OGR_DS_GetLayerByName(
+ */
+  __pyx_tuple__10 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 365; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__10);
+  __Pyx_GIVEREF(__pyx_tuple__10);
+
+  /* "fiona/ogrext.pyx":374
+ *             name_c = ograpi.OGR_L_GetName(self.cogr_layer)
+ *             name_b = name_c
+ *             collection.name = name_b.decode('utf-8')             # <<<<<<<<<<<<<<
+ * 
+ *         if self.cogr_layer == NULL:
+ */
+  __pyx_tuple__11 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__11);
+  __Pyx_GIVEREF(__pyx_tuple__11);
+
+  /* "fiona/ogrext.pyx":413
+ *     def get_length(self):
+ *         if self.cogr_layer == NULL:
+ *             raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ *         self._read_ts += 1
+ *         return ograpi.OGR_L_GetFeatureCount(self.cogr_layer, 0)
+ */
+  __pyx_tuple__13 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__13);
+  __Pyx_GIVEREF(__pyx_tuple__13);
+
+  /* "fiona/ogrext.pyx":420
+ *         cdef void *cogr_driver = ograpi.OGR_DS_GetDriver(self.cogr_ds)
+ *         if cogr_driver == NULL:
+ *             raise ValueError("Null driver")             # <<<<<<<<<<<<<<
+ *         cdef char *name = ograpi.OGR_Dr_GetName(cogr_driver)
+ *         driver_name = name
+ */
+  __pyx_tuple__14 = PyTuple_Pack(1, __pyx_kp_s_Null_driver); if (unlikely(!__pyx_tuple__14)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 420; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__14);
+  __Pyx_GIVEREF(__pyx_tuple__14);
+
+  /* "fiona/ogrext.pyx":434
+ * 
+ *         if self.cogr_layer == NULL:
+ *             raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ * 
+ *         cogr_featuredefn = ograpi.OGR_L_GetLayerDefn(self.cogr_layer)
+ */
+  __pyx_tuple__15 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 434; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__15);
+  __Pyx_GIVEREF(__pyx_tuple__15);
+
+  /* "fiona/ogrext.pyx":438
+ *         cogr_featuredefn = ograpi.OGR_L_GetLayerDefn(self.cogr_layer)
+ *         if cogr_featuredefn == NULL:
+ *             raise ValueError("Null feature definition")             # <<<<<<<<<<<<<<
+ *         n = ograpi.OGR_FD_GetFieldCount(cogr_featuredefn)
+ *         for i from 0 <= i < n:
+ */
+  __pyx_tuple__16 = PyTuple_Pack(1, __pyx_kp_s_Null_feature_definition); if (unlikely(!__pyx_tuple__16)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 438; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__16);
+  __Pyx_GIVEREF(__pyx_tuple__16);
+
+  /* "fiona/ogrext.pyx":443
+ *             cogr_fielddefn = ograpi.OGR_FD_GetFieldDefn(cogr_featuredefn, i)
+ *             if cogr_fielddefn == NULL:
+ *                 raise ValueError("Null field definition")             # <<<<<<<<<<<<<<
+ *             key_c = ograpi.OGR_Fld_GetNameRef(cogr_fielddefn)
+ *             key_b = key_c
+ */
+  __pyx_tuple__17 = PyTuple_Pack(1, __pyx_kp_s_Null_field_definition); if (unlikely(!__pyx_tuple__17)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 443; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__17);
+  __Pyx_GIVEREF(__pyx_tuple__17);
+
+  /* "fiona/ogrext.pyx":493
+ *         cdef void *cogr_crs = NULL
+ *         if self.cogr_layer == NULL:
+ *             raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ *         cogr_crs = ograpi.OGR_L_GetSpatialRef(self.cogr_layer)
+ *         crs = {}
+ */
+  __pyx_tuple__18 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 493; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__18);
+  __Pyx_GIVEREF(__pyx_tuple__18);
+
+  /* "fiona/ogrext.pyx":497
+ *         crs = {}
+ *         if cogr_crs is not NULL:
+ *             log.debug("Got coordinate system")             # <<<<<<<<<<<<<<
+ * 
+ *             retval = ograpi.OSRAutoIdentifyEPSG(cogr_crs)
+ */
+  __pyx_tuple__19 = PyTuple_Pack(1, __pyx_kp_s_Got_coordinate_system); if (unlikely(!__pyx_tuple__19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 497; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__19);
+  __Pyx_GIVEREF(__pyx_tuple__19);
+
+  /* "fiona/ogrext.pyx":516
+ *                 ograpi.OSRExportToProj4(cogr_crs, &proj_c)
+ *                 if proj_c == NULL:
+ *                     raise ValueError("Null projection")             # <<<<<<<<<<<<<<
+ *                 proj_b = proj_c
+ *                 log.debug("Params: %s", proj_b)
+ */
+  __pyx_tuple__20 = PyTuple_Pack(1, __pyx_kp_s_Null_projection); if (unlikely(!__pyx_tuple__20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 516; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__20);
+  __Pyx_GIVEREF(__pyx_tuple__20);
+
+  /* "fiona/ogrext.pyx":522
+ *                 value = value.strip()
+ *                 for param in value.split():
+ *                     kv = param.split("=")             # <<<<<<<<<<<<<<
+ *                     if len(kv) == 2:
+ *                         k, v = kv
+ */
+  __pyx_tuple__22 = PyTuple_Pack(1, __pyx_kp_s__21); if (unlikely(!__pyx_tuple__22)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__22);
+  __Pyx_GIVEREF(__pyx_tuple__22);
+
+  /* "fiona/ogrext.pyx":536
+ *                     else:
+ *                         raise ValueError("Unexpected proj parameter %s" % param)
+ *                     k = k.lstrip("+")             # <<<<<<<<<<<<<<
+ *                     crs[k] = v
+ * 
+ */
+  __pyx_tuple__24 = PyTuple_Pack(1, __pyx_kp_s__23); if (unlikely(!__pyx_tuple__24)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 536; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__24);
+  __Pyx_GIVEREF(__pyx_tuple__24);
+
+  /* "fiona/ogrext.pyx":541
+ *             ograpi.CPLFree(proj_c)
+ *         else:
+ *             log.debug("Projection not found (cogr_crs was NULL)")             # <<<<<<<<<<<<<<
+ *         return crs
+ * 
+ */
+  __pyx_tuple__25 = PyTuple_Pack(1, __pyx_kp_s_Projection_not_found_cogr_crs_wa); if (unlikely(!__pyx_tuple__25)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 541; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__25);
+  __Pyx_GIVEREF(__pyx_tuple__25);
+
+  /* "fiona/ogrext.pyx":546
+ *     def get_extent(self):
+ *         if self.cogr_layer == NULL:
+ *             raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ *         cdef ograpi.OGREnvelope extent
+ *         self._read_ts += 1
+ */
+  __pyx_tuple__26 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__26)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 546; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__26);
+  __Pyx_GIVEREF(__pyx_tuple__26);
+
+  /* "fiona/ogrext.pyx":595
+ *                 ftcount = ograpi.OGR_L_GetFeatureCount(self.cogr_layer, 0)
+ *                 if ftcount == -1:
+ *                     raise RuntimeError("Layer does not support counting")             # <<<<<<<<<<<<<<
+ *                 index += ftcount
+ *             cogr_feature = ograpi.OGR_L_GetFeature(self.cogr_layer, index)
+ */
+  __pyx_tuple__27 = PyTuple_Pack(1, __pyx_kp_s_Layer_does_not_support_counting); if (unlikely(!__pyx_tuple__27)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__27);
+  __Pyx_GIVEREF(__pyx_tuple__27);
+
+  /* "fiona/ogrext.pyx":635
+ *             if os.path.exists(path):
+ *                 try:
+ *                     path_b = path.encode('utf-8')             # <<<<<<<<<<<<<<
+ *                 except UnicodeDecodeError:
+ *                     path_b = path
+ */
+  __pyx_tuple__28 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__28)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 635; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__28);
+  __Pyx_GIVEREF(__pyx_tuple__28);
+
+  /* "fiona/ogrext.pyx":639
+ *                     path_b = path
+ *                 path_c = path_b
+ *                 with cpl_errs:             # <<<<<<<<<<<<<<
+ *                     self.cogr_ds = ograpi.OGROpen(path_c, 1, NULL)
+ *                 if self.cogr_ds == NULL:
+ */
+  __pyx_tuple__29 = PyTuple_Pack(3, Py_None, Py_None, Py_None); if (unlikely(!__pyx_tuple__29)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 639; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__29);
+  __Pyx_GIVEREF(__pyx_tuple__29);
+
+  /* "fiona/ogrext.pyx":645
+ *                 cogr_driver = ograpi.OGR_DS_GetDriver(self.cogr_ds)
+ *                 if cogr_driver == NULL:
+ *                     raise ValueError("Null driver")             # <<<<<<<<<<<<<<
+ * 
+ *                 if isinstance(collection.name, string_types):
+ */
+  __pyx_tuple__30 = PyTuple_Pack(1, __pyx_kp_s_Null_driver); if (unlikely(!__pyx_tuple__30)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 645; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__30);
+  __Pyx_GIVEREF(__pyx_tuple__30);
+
+  /* "fiona/ogrext.pyx":671
+ *         elif collection.mode == 'w':
+ *             try:
+ *                 path_b = path.encode('utf-8')             # <<<<<<<<<<<<<<
+ *             except UnicodeDecodeError:
+ *                 path_b = path
+ */
+  __pyx_tuple__31 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__31)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 671; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__31);
+  __Pyx_GIVEREF(__pyx_tuple__31);
+
+  /* "fiona/ogrext.pyx":680
+ *             cogr_driver = ograpi.OGRGetDriverByName(driver_c)
+ *             if cogr_driver == NULL:
+ *                 raise ValueError("Null driver")             # <<<<<<<<<<<<<<
+ * 
+ *             if not os.path.exists(path):
+ */
+  __pyx_tuple__32 = PyTuple_Pack(1, __pyx_kp_s_Null_driver); if (unlikely(!__pyx_tuple__32)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 680; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__32);
+  __Pyx_GIVEREF(__pyx_tuple__32);
+
+  /* "fiona/ogrext.pyx":687
+ * 
+ *             else:
+ *                 with cpl_errs:             # <<<<<<<<<<<<<<
+ *                     cogr_ds = ograpi.OGROpen(path_c, 1, NULL)
+ *                 if cogr_ds == NULL:
+ */
+  __pyx_tuple__33 = PyTuple_Pack(3, Py_None, Py_None, Py_None); if (unlikely(!__pyx_tuple__33)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__33);
+  __Pyx_GIVEREF(__pyx_tuple__33);
+
+  /* "fiona/ogrext.pyx":713
+ *                 cogr_srs = ograpi.OSRNewSpatialReference(NULL)
+ *                 if cogr_srs == NULL:
+ *                     raise ValueError("NULL spatial reference")             # <<<<<<<<<<<<<<
+ *                 params = []
+ *                 if isinstance(collection.crs, dict):
+ */
+  __pyx_tuple__34 = PyTuple_Pack(1, __pyx_kp_s_NULL_spatial_reference); if (unlikely(!__pyx_tuple__34)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__34);
+  __Pyx_GIVEREF(__pyx_tuple__34);
+
+  /* "fiona/ogrext.pyx":717
+ *                 if isinstance(collection.crs, dict):
+ *                     # EPSG is a special case.
+ *                     init = collection.crs.get('init')             # <<<<<<<<<<<<<<
+ *                     if init:
+ *                         auth, val = init.split(':')
+ */
+  __pyx_tuple__35 = PyTuple_Pack(1, __pyx_n_s_init); if (unlikely(!__pyx_tuple__35)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 717; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__35);
+  __Pyx_GIVEREF(__pyx_tuple__35);
+
+  /* "fiona/ogrext.pyx":719
+ *                     init = collection.crs.get('init')
+ *                     if init:
+ *                         auth, val = init.split(':')             # <<<<<<<<<<<<<<
+ *                         if auth.upper() == 'EPSG':
+ *                             ograpi.OSRImportFromEPSG(cogr_srs, int(val))
+ */
+  __pyx_tuple__37 = PyTuple_Pack(1, __pyx_kp_s__36); if (unlikely(!__pyx_tuple__37)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 719; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__37);
+  __Pyx_GIVEREF(__pyx_tuple__37);
+
+  /* "fiona/ogrext.pyx":731
+ *                     proj = " ".join(params)
+ *                     log.debug("PROJ.4 to be imported: %r", proj)
+ *                     proj_b = proj.encode('utf-8')             # <<<<<<<<<<<<<<
+ *                     proj_c = proj_b
+ *                     ograpi.OSRImportFromProj4(cogr_srs, proj_c)
+ */
+  __pyx_tuple__39 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__39)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 731; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__39);
+  __Pyx_GIVEREF(__pyx_tuple__39);
+
+  /* "fiona/ogrext.pyx":736
+ *                 # Fall back for CRS strings like "EPSG:3857."
+ *                 else:
+ *                     proj_b = collection.crs.encode('utf-8')             # <<<<<<<<<<<<<<
+ *                     proj_c = proj_b
+ *                     ograpi.OSRSetFromUserInput(cogr_srs, proj_c)
+ */
+  __pyx_tuple__40 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__40)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__40);
+  __Pyx_GIVEREF(__pyx_tuple__40);
+
+  /* "fiona/ogrext.pyx":764
+ *                 name_c = ograpi.OGR_L_GetName(cogr_layer)
+ *                 name_b = name_c
+ *                 layer_names.append(name_b.decode('utf-8'))             # <<<<<<<<<<<<<<
+ * 
+ *             idx = -1
+ */
+  __pyx_tuple__41 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__41)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 764; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__41);
+  __Pyx_GIVEREF(__pyx_tuple__41);
+
+  /* "fiona/ogrext.pyx":778
+ * 
+ *             # Create the named layer in the datasource.
+ *             name_b = collection.name.encode('utf-8')             # <<<<<<<<<<<<<<
+ *             name_c = name_b
+ *             self.cogr_layer = ograpi.OGR_DS_CreateLayer(
+ */
+  __pyx_tuple__42 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__42)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 778; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__42);
+  __Pyx_GIVEREF(__pyx_tuple__42);
+
+  /* "fiona/ogrext.pyx":785
+ *                 cogr_srs,
+ *                 <unsigned int>[k for k,v in GEOMETRY_TYPES.items() if
+ *                     v == collection.schema.get('geometry', 'Unknown')][0],             # <<<<<<<<<<<<<<
+ *                 options
+ *                 )
+ */
+  __pyx_tuple__43 = PyTuple_Pack(2, __pyx_n_s_geometry, __pyx_n_s_Unknown); if (unlikely(!__pyx_tuple__43)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 785; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__43);
+  __Pyx_GIVEREF(__pyx_tuple__43);
+
+  /* "fiona/ogrext.pyx":795
+ * 
+ *             if self.cogr_layer == NULL:
+ *                 raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ *             log.debug("Created layer")
+ * 
+ */
+  __pyx_tuple__44 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__44)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 795; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__44);
+  __Pyx_GIVEREF(__pyx_tuple__44);
+
+  /* "fiona/ogrext.pyx":796
+ *             if self.cogr_layer == NULL:
+ *                 raise ValueError("Null layer")
+ *             log.debug("Created layer")             # <<<<<<<<<<<<<<
+ * 
+ *             # Next, make a layer definition from the given schema properties,
+ */
+  __pyx_tuple__45 = PyTuple_Pack(1, __pyx_kp_s_Created_layer); if (unlikely(!__pyx_tuple__45)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__45);
+  __Pyx_GIVEREF(__pyx_tuple__45);
+
+  /* "fiona/ogrext.pyx":811
+ *                 width = precision = None
+ *                 if ':' in value:
+ *                     value, fmt = value.split(':')             # <<<<<<<<<<<<<<
+ *                     if '.' in fmt:
+ *                         width, precision = map(int, fmt.split('.'))
+ */
+  __pyx_tuple__46 = PyTuple_Pack(1, __pyx_kp_s__36); if (unlikely(!__pyx_tuple__46)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 811; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__46);
+  __Pyx_GIVEREF(__pyx_tuple__46);
+
+  /* "fiona/ogrext.pyx":813
+ *                     value, fmt = value.split(':')
+ *                     if '.' in fmt:
+ *                         width, precision = map(int, fmt.split('.'))             # <<<<<<<<<<<<<<
+ *                     else:
+ *                         width = int(fmt)
+ */
+  __pyx_tuple__48 = PyTuple_Pack(1, __pyx_kp_s__47); if (unlikely(!__pyx_tuple__48)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 813; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__48);
+  __Pyx_GIVEREF(__pyx_tuple__48);
+
+  /* "fiona/ogrext.pyx":823
+ *                     FIELD_TYPES.index(value) )
+ *                 if cogr_fielddefn == NULL:
+ *                     raise ValueError("Null field definition")             # <<<<<<<<<<<<<<
+ *                 if width:
+ *                     ograpi.OGR_Fld_SetWidth(cogr_fielddefn, width)
+ */
+  __pyx_tuple__49 = PyTuple_Pack(1, __pyx_kp_s_Null_field_definition); if (unlikely(!__pyx_tuple__49)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 823; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__49);
+  __Pyx_GIVEREF(__pyx_tuple__49);
+
+  /* "fiona/ogrext.pyx":830
+ *                 ograpi.OGR_L_CreateField(self.cogr_layer, cogr_fielddefn, 1)
+ *                 ograpi.OGR_Fld_Destroy(cogr_fielddefn)
+ *             log.debug("Created fields")             # <<<<<<<<<<<<<<
+ * 
+ *         # Mapping of the Python collection schema to the munged
+ */
+  __pyx_tuple__50 = PyTuple_Pack(1, __pyx_kp_s_Created_fields); if (unlikely(!__pyx_tuple__50)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 830; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__50);
+  __Pyx_GIVEREF(__pyx_tuple__50);
+
+  /* "fiona/ogrext.pyx":839
+ *             ogr_schema['properties'].keys() ))
+ * 
+ *         log.debug("Writing started")             # <<<<<<<<<<<<<<
+ * 
+ *     def writerecs(self, records, collection):
+ */
+  __pyx_tuple__51 = PyTuple_Pack(1, __pyx_kp_s_Writing_started); if (unlikely(!__pyx_tuple__51)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__51);
+  __Pyx_GIVEREF(__pyx_tuple__51);
+
+  /* "fiona/ogrext.pyx":861
+ *             def validate_geometry_type(rec):
+ *                 return rec['geometry'] is None or \
+ *                 rec['geometry']['type'].lstrip(             # <<<<<<<<<<<<<<
+ *                     "3D ").lstrip("Multi") == schema_geom_type
+ *         else:
+ */
+  __pyx_tuple__52 = PyTuple_Pack(1, __pyx_kp_s_3D); if (unlikely(!__pyx_tuple__52)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 861; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__52);
+  __Pyx_GIVEREF(__pyx_tuple__52);
+
+  /* "fiona/ogrext.pyx":862
+ *                 return rec['geometry'] is None or \
+ *                 rec['geometry']['type'].lstrip(
+ *                     "3D ").lstrip("Multi") == schema_geom_type             # <<<<<<<<<<<<<<
+ *         else:
+ *             schema_geom_type = collection.schema['geometry'].lstrip("3D ")
+ */
+  __pyx_tuple__53 = PyTuple_Pack(1, __pyx_n_s_Multi); if (unlikely(!__pyx_tuple__53)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 862; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__53);
+  __Pyx_GIVEREF(__pyx_tuple__53);
+
+  /* "fiona/ogrext.pyx":867
+ *             def validate_geometry_type(rec):
+ *                 return rec['geometry'] is None or \
+ *                        rec['geometry']['type'].lstrip("3D ") == schema_geom_type             # <<<<<<<<<<<<<<
+ * 
+ *         schema_props_keys = set(collection.schema['properties'].keys())
+ */
+  __pyx_tuple__54 = PyTuple_Pack(1, __pyx_kp_s_3D); if (unlikely(!__pyx_tuple__54)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 867; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__54);
+  __Pyx_GIVEREF(__pyx_tuple__54);
+
+  /* "fiona/ogrext.pyx":848
+ *         cdef void *cogr_layer = self.cogr_layer
+ *         if cogr_layer == NULL:
+ *             raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ * 
+ *         schema_geom_type = collection.schema['geometry']
+ */
+  __pyx_tuple__55 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__55)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 848; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__55);
+  __Pyx_GIVEREF(__pyx_tuple__55);
+
+  /* "fiona/ogrext.pyx":853
+ *         cogr_driver = ograpi.OGR_DS_GetDriver(self.cogr_ds)
+ *         if ograpi.OGR_Dr_GetName(cogr_driver) == b"GeoJSON":
+ *             def validate_geometry_type(rec):             # <<<<<<<<<<<<<<
+ *                 return True
+ *         elif ograpi.OGR_Dr_GetName(cogr_driver) == b"ESRI Shapefile" \
+ */
+  __pyx_tuple__56 = PyTuple_Pack(1, __pyx_n_s_rec); if (unlikely(!__pyx_tuple__56)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__56);
+  __Pyx_GIVEREF(__pyx_tuple__56);
+  __pyx_codeobj__57 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__56, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_validate_geometry_type, 853, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__57)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 853; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":857
+ *         elif ograpi.OGR_Dr_GetName(cogr_driver) == b"ESRI Shapefile" \
+ *                 and "Point" not in collection.schema['geometry']:
+ *             schema_geom_type = collection.schema['geometry'].lstrip(             # <<<<<<<<<<<<<<
+ *                 "3D ").lstrip("Multi")
+ *             def validate_geometry_type(rec):
+ */
+  __pyx_tuple__58 = PyTuple_Pack(1, __pyx_kp_s_3D); if (unlikely(!__pyx_tuple__58)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__58);
+  __Pyx_GIVEREF(__pyx_tuple__58);
+
+  /* "fiona/ogrext.pyx":858
+ *                 and "Point" not in collection.schema['geometry']:
+ *             schema_geom_type = collection.schema['geometry'].lstrip(
+ *                 "3D ").lstrip("Multi")             # <<<<<<<<<<<<<<
+ *             def validate_geometry_type(rec):
+ *                 return rec['geometry'] is None or \
+ */
+  __pyx_tuple__59 = PyTuple_Pack(1, __pyx_n_s_Multi); if (unlikely(!__pyx_tuple__59)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__59);
+  __Pyx_GIVEREF(__pyx_tuple__59);
+
+  /* "fiona/ogrext.pyx":859
+ *             schema_geom_type = collection.schema['geometry'].lstrip(
+ *                 "3D ").lstrip("Multi")
+ *             def validate_geometry_type(rec):             # <<<<<<<<<<<<<<
+ *                 return rec['geometry'] is None or \
+ *                 rec['geometry']['type'].lstrip(
+ */
+  __pyx_tuple__60 = PyTuple_Pack(1, __pyx_n_s_rec); if (unlikely(!__pyx_tuple__60)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__60);
+  __Pyx_GIVEREF(__pyx_tuple__60);
+  __pyx_codeobj__61 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__60, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_validate_geometry_type, 859, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__61)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":864
+ *                     "3D ").lstrip("Multi") == schema_geom_type
+ *         else:
+ *             schema_geom_type = collection.schema['geometry'].lstrip("3D ")             # <<<<<<<<<<<<<<
+ *             def validate_geometry_type(rec):
+ *                 return rec['geometry'] is None or \
+ */
+  __pyx_tuple__62 = PyTuple_Pack(1, __pyx_kp_s_3D); if (unlikely(!__pyx_tuple__62)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__62);
+  __Pyx_GIVEREF(__pyx_tuple__62);
+
+  /* "fiona/ogrext.pyx":865
+ *         else:
+ *             schema_geom_type = collection.schema['geometry'].lstrip("3D ")
+ *             def validate_geometry_type(rec):             # <<<<<<<<<<<<<<
+ *                 return rec['geometry'] is None or \
+ *                        rec['geometry']['type'].lstrip("3D ") == schema_geom_type
+ */
+  __pyx_tuple__63 = PyTuple_Pack(1, __pyx_n_s_rec); if (unlikely(!__pyx_tuple__63)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 865; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__63);
+  __Pyx_GIVEREF(__pyx_tuple__63);
+  __pyx_codeobj__64 = (PyObject*)__Pyx_PyCode_New(1, 0, 1, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__63, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_validate_geometry_type, 865, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__64)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 865; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":896
+ *         cdef void *cogr_layer = self.cogr_layer
+ *         if cogr_ds == NULL:
+ *             raise ValueError("Null data source")             # <<<<<<<<<<<<<<
+ *         log.debug("Syncing OGR to disk")
+ *         retval = ograpi.OGR_DS_SyncToDisk(cogr_ds)
+ */
+  __pyx_tuple__65 = PyTuple_Pack(1, __pyx_kp_s_Null_data_source); if (unlikely(!__pyx_tuple__65)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__65);
+  __Pyx_GIVEREF(__pyx_tuple__65);
+
+  /* "fiona/ogrext.pyx":897
+ *         if cogr_ds == NULL:
+ *             raise ValueError("Null data source")
+ *         log.debug("Syncing OGR to disk")             # <<<<<<<<<<<<<<
+ *         retval = ograpi.OGR_DS_SyncToDisk(cogr_ds)
+ *         if retval != OGRERR_NONE:
+ */
+  __pyx_tuple__66 = PyTuple_Pack(1, __pyx_kp_s_Syncing_OGR_to_disk); if (unlikely(!__pyx_tuple__66)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 897; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__66);
+  __Pyx_GIVEREF(__pyx_tuple__66);
+
+  /* "fiona/ogrext.pyx":900
+ *         retval = ograpi.OGR_DS_SyncToDisk(cogr_ds)
+ *         if retval != OGRERR_NONE:
+ *             raise RuntimeError("Failed to sync to disk")             # <<<<<<<<<<<<<<
+ * 
+ * 
+ */
+  __pyx_tuple__67 = PyTuple_Pack(1, __pyx_kp_s_Failed_to_sync_to_disk); if (unlikely(!__pyx_tuple__67)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__67);
+  __Pyx_GIVEREF(__pyx_tuple__67);
+
+  /* "fiona/ogrext.pyx":922
+ *             start=None, stop=None, step=None, bbox=None, mask=None):
+ *         if collection.session is None:
+ *             raise ValueError("I/O operation on closed collection")             # <<<<<<<<<<<<<<
+ *         self.collection = collection
+ *         cdef Session session
+ */
+  __pyx_tuple__68 = PyTuple_Pack(1, __pyx_kp_s_I_O_operation_on_closed_collecti); if (unlikely(!__pyx_tuple__68)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 922; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__68);
+  __Pyx_GIVEREF(__pyx_tuple__68);
+
+  /* "fiona/ogrext.pyx":929
+ *         cdef void *cogr_layer = session.cogr_layer
+ *         if cogr_layer == NULL:
+ *             raise ValueError("Null layer")             # <<<<<<<<<<<<<<
+ *         ograpi.OGR_L_ResetReading(cogr_layer)
+ * 
+ */
+  __pyx_tuple__69 = PyTuple_Pack(1, __pyx_kp_s_Null_layer); if (unlikely(!__pyx_tuple__69)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 929; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__69);
+  __Pyx_GIVEREF(__pyx_tuple__69);
+
+  /* "fiona/ogrext.pyx":933
+ * 
+ *         if bbox and mask:
+ *             raise ValueError("mask and bbox can not be set together")             # <<<<<<<<<<<<<<
+ * 
+ *         if bbox:
+ */
+  __pyx_tuple__70 = PyTuple_Pack(1, __pyx_kp_s_mask_and_bbox_can_not_be_set_tog); if (unlikely(!__pyx_tuple__70)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__70);
+  __Pyx_GIVEREF(__pyx_tuple__70);
+
+  /* "fiona/ogrext.pyx":956
+ *         ftcount = ograpi.OGR_L_GetFeatureCount(session.cogr_layer, 0)
+ *         if ftcount == -1:
+ *             raise RuntimeError("Layer does not support counting")             # <<<<<<<<<<<<<<
+ * 
+ *         if stop is not None and stop < 0:
+ */
+  __pyx_tuple__71 = PyTuple_Pack(1, __pyx_kp_s_Layer_does_not_support_counting); if (unlikely(!__pyx_tuple__71)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 956; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__71);
+  __Pyx_GIVEREF(__pyx_tuple__71);
+
+  /* "fiona/ogrext.pyx":970
+ *             step = 1
+ *         if step == 0:
+ *             raise ValueError("slice step cannot be zero")             # <<<<<<<<<<<<<<
+ *         if step < 0 and not self.fastindex:
+ *             warnings.warn("Layer does not support" \
+ */
+  __pyx_tuple__72 = PyTuple_Pack(1, __pyx_kp_s_slice_step_cannot_be_zero); if (unlikely(!__pyx_tuple__72)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__72);
+  __Pyx_GIVEREF(__pyx_tuple__72);
+
+  /* "fiona/ogrext.pyx":1119
+ *     # Open OGR data source.
+ *     try:
+ *         path_b = path.encode('utf-8')             # <<<<<<<<<<<<<<
+ *     except UnicodeDecodeError:
+ *         path_b = path
+ */
+  __pyx_tuple__73 = PyTuple_Pack(1, __pyx_kp_s_utf_8); if (unlikely(!__pyx_tuple__73)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__73);
+  __Pyx_GIVEREF(__pyx_tuple__73);
+
+  /* "fiona/ogrext.pyx":1123
+ *         path_b = path
+ *     path_c = path_b
+ *     with cpl_errs:             # <<<<<<<<<<<<<<
+ *         cogr_ds = ograpi.OGROpen(path_c, 0, NULL)
+ *     if cogr_ds == NULL:
+ */
+  __pyx_tuple__74 = PyTuple_Pack(3, Py_None, Py_None, Py_None); if (unlikely(!__pyx_tuple__74)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1123; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__74);
+  __Pyx_GIVEREF(__pyx_tuple__74);
+
+  /* "fiona/ogrext.pyx":23
+ * 
+ * 
+ * log = logging.getLogger("Fiona")             # <<<<<<<<<<<<<<
+ * class NullHandler(logging.Handler):
+ *     def emit(self, record):
+ */
+  __pyx_tuple__75 = PyTuple_Pack(1, __pyx_n_s_Fiona); if (unlikely(!__pyx_tuple__75)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 23; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__75);
+  __Pyx_GIVEREF(__pyx_tuple__75);
+
+  /* "fiona/ogrext.pyx":25
+ * log = logging.getLogger("Fiona")
+ * class NullHandler(logging.Handler):
+ *     def emit(self, record):             # <<<<<<<<<<<<<<
+ *         pass
+ * log.addHandler(NullHandler())
+ */
+  __pyx_tuple__76 = PyTuple_Pack(2, __pyx_n_s_self, __pyx_n_s_record); if (unlikely(!__pyx_tuple__76)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__76);
+  __Pyx_GIVEREF(__pyx_tuple__76);
+  __pyx_codeobj__77 = (PyObject*)__Pyx_PyCode_New(2, 0, 2, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__76, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_emit, 25, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__77)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":94
+ * 
+ * 
+ * def _explode(coords):             # <<<<<<<<<<<<<<
+ *     """Explode a GeoJSON geometry's coordinates object and yield
+ *     coordinate tuples. As long as the input is conforming, the type of
+ */
+  __pyx_tuple__78 = PyTuple_Pack(3, __pyx_n_s_coords, __pyx_n_s_e, __pyx_n_s_f); if (unlikely(!__pyx_tuple__78)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__78);
+  __Pyx_GIVEREF(__pyx_tuple__78);
+  __pyx_codeobj__79 = (PyObject*)__Pyx_PyCode_New(1, 0, 3, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__78, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_explode, 94, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__79)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":107
+ * 
+ * 
+ * def _bounds(geometry):             # <<<<<<<<<<<<<<
+ *     """Bounding box of a GeoJSON geometry"""
+ *     try:
+ */
+  __pyx_tuple__80 = PyTuple_Pack(3, __pyx_n_s_geometry, __pyx_n_s_x, __pyx_n_s_y); if (unlikely(!__pyx_tuple__80)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__80);
+  __Pyx_GIVEREF(__pyx_tuple__80);
+  __pyx_codeobj__81 = (PyObject*)__Pyx_PyCode_New(1, 0, 3, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__80, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_bounds, 107, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__81)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 107; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":115
+ *         return None
+ * 
+ * def calc_gdal_version_num(maj, min, rev):             # <<<<<<<<<<<<<<
+ *     """Calculates the internal gdal version number based on major, minor and revision"""
+ *     return int(maj * 1000000 + min * 10000 + rev*100)
+ */
+  __pyx_tuple__82 = PyTuple_Pack(3, __pyx_n_s_maj, __pyx_n_s_min, __pyx_n_s_rev); if (unlikely(!__pyx_tuple__82)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_tuple__82);
+  __Pyx_GIVEREF(__pyx_tuple__82);
+  __pyx_codeobj__83 = (PyObject*)__Pyx_PyCode_New(3, 0, 3, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__82, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_calc_gdal_version_num, 115, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__83)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":119
+ *     return int(maj * 1000000 + min * 10000 + rev*100)
+ * 
+ * def get_gdal_version_num():             # <<<<<<<<<<<<<<
+ *     """Return current internal version number of gdal"""
+ *     return int(ograpi.GDALVersionInfo("VERSION_NUM"))
+ */
+  __pyx_codeobj__84 = (PyObject*)__Pyx_PyCode_New(0, 0, 0, 0, 0, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_Users_sean_code_Fiona_fiona_ogr, __pyx_n_s_get_gdal_version_num, 119, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__84)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 119; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+
+  /* "fiona/ogrext.pyx":123
+ *     return int(ograpi.GDALVersionInfo("VERSION_NUM"))
+ * 
+ * def get_gdal_release_name():             # <<<<<<<<<<<<<<
+ *     """Return release name of gdal"""
+ *     return ograpi.GDALVersionInfo("RELEASE_NAME")
+ */
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+  #if defined(__PYX_FORCE_INIT_THREADS) && __PYX_FORCE_INIT_THREADS
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+  __pyx_m = PyModule_Create(&__pyx_moduledef);
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+    if (PyObject_SetAttrString(__pyx_m, "__name__", __pyx_n_s_main) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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+    if (!PyDict_GetItemString(modules, "fiona.ogrext")) {
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+  }
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+  /*--- Builtin init code ---*/
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+  /*--- Global init code ---*/
+  /*--- Variable export code ---*/
+  /*--- Function export code ---*/
+  /*--- Type init code ---*/
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+  __pyx_type_5fiona_6ogrext_Iterator.tp_print = 0;
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+  /*--- Variable import code ---*/
+  /*--- Function import code ---*/
+  /*--- Execution code ---*/
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+#if CYTHON_REFNANNY
+static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) {
+    PyObject *m = NULL, *p = NULL;
+    void *r = NULL;
+    m = PyImport_ImportModule((char *)modname);
+    if (!m) goto end;
+    p = PyObject_GetAttrString(m, (char *)"RefNannyAPI");
+    if (!p) goto end;
+    r = PyLong_AsVoidPtr(p);
+end:
+    Py_XDECREF(p);
+    Py_XDECREF(m);
+    return (__Pyx_RefNannyAPIStruct *)r;
+}
+#endif
+
+static PyObject *__Pyx_GetBuiltinName(PyObject *name) {
+    PyObject* result = __Pyx_PyObject_GetAttrStr(__pyx_b, name);
+    if (unlikely(!result)) {
+        PyErr_Format(PyExc_NameError,
+#if PY_MAJOR_VERSION >= 3
+            "name '%U' is not defined", name);
+#else
+            "name '%.200s' is not defined", PyString_AS_STRING(name));
+#endif
+    }
+    return result;
+}
+
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetModuleGlobalName(PyObject *name) {
+    PyObject *result;
+#if CYTHON_COMPILING_IN_CPYTHON
+    result = PyDict_GetItem(__pyx_d, name);
+    if (likely(result)) {
+        Py_INCREF(result);
+    } else {
+#else
+    result = PyObject_GetItem(__pyx_d, name);
+    if (!result) {
+        PyErr_Clear();
+#endif
+        result = __Pyx_GetBuiltinName(name);
+    }
+    return result;
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyObject *result;
+    ternaryfunc call = func->ob_type->tp_call;
+    if (unlikely(!call))
+        return PyObject_Call(func, arg, kw);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = (*call)(func, arg, kw);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
+    PyObject *self, *result;
+    PyCFunction cfunc;
+    cfunc = PyCFunction_GET_FUNCTION(func);
+    self = PyCFunction_GET_SELF(func);
+    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
+        return NULL;
+    result = cfunc(self, arg);
+    Py_LeaveRecursiveCall();
+    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
+        PyErr_SetString(
+            PyExc_SystemError,
+            "NULL result without error in PyObject_Call");
+    }
+    return result;
+}
+#endif
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static PyObject* __Pyx__PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject *result;
+    PyObject *args = PyTuple_New(1);
+    if (unlikely(!args)) return NULL;
+    Py_INCREF(arg);
+    PyTuple_SET_ITEM(args, 0, arg);
+    result = __Pyx_PyObject_Call(func, args, NULL);
+    Py_DECREF(args);
+    return result;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_O)) {
+            return __Pyx_PyObject_CallMethO(func, arg);
+        }
+    }
+    return __Pyx__PyObject_CallOneArg(func, arg);
+}
+#else
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
+    PyObject* args = PyTuple_Pack(1, arg);
+    return (likely(args)) ? __Pyx_PyObject_Call(func, args, NULL) : NULL;
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_RaiseTooManyValuesError(Py_ssize_t expected) {
+    PyErr_Format(PyExc_ValueError,
+                 "too many values to unpack (expected %" CYTHON_FORMAT_SSIZE_T "d)", expected);
+}
+
+static CYTHON_INLINE void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t index) {
+    PyErr_Format(PyExc_ValueError,
+                 "need more than %" CYTHON_FORMAT_SSIZE_T "d value%.1s to unpack",
+                 index, (index == 1) ? "" : "s");
+}
+
+static CYTHON_INLINE int __Pyx_IterFinish(void) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    PyObject* exc_type = tstate->curexc_type;
+    if (unlikely(exc_type)) {
+        if (likely(exc_type == PyExc_StopIteration) || PyErr_GivenExceptionMatches(exc_type, PyExc_StopIteration)) {
+            PyObject *exc_value, *exc_tb;
+            exc_value = tstate->curexc_value;
+            exc_tb = tstate->curexc_traceback;
+            tstate->curexc_type = 0;
+            tstate->curexc_value = 0;
+            tstate->curexc_traceback = 0;
+            Py_DECREF(exc_type);
+            Py_XDECREF(exc_value);
+            Py_XDECREF(exc_tb);
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#else
+    if (unlikely(PyErr_Occurred())) {
+        if (likely(PyErr_ExceptionMatches(PyExc_StopIteration))) {
+            PyErr_Clear();
+            return 0;
+        } else {
+            return -1;
+        }
+    }
+    return 0;
+#endif
+}
+
+static int __Pyx_IternextUnpackEndCheck(PyObject *retval, Py_ssize_t expected) {
+    if (unlikely(retval)) {
+        Py_DECREF(retval);
+        __Pyx_RaiseTooManyValuesError(expected);
+        return -1;
+    } else {
+        return __Pyx_IterFinish();
+    }
+    return 0;
+}
+
+static CYTHON_INLINE void __Pyx_ExceptionSave(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->exc_type;
+    *value = tstate->exc_value;
+    *tb = tstate->exc_traceback;
+    Py_XINCREF(*type);
+    Py_XINCREF(*value);
+    Py_XINCREF(*tb);
+#else
+    PyErr_GetExcInfo(type, value, tb);
+#endif
+}
+static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = type;
+    tstate->exc_value = value;
+    tstate->exc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(type, value, tb);
+#endif
+}
+
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *local_type, *local_value, *local_tb;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(&local_type, &local_value, &local_tb);
+#endif
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (unlikely(tstate->curexc_type))
+#else
+    if (unlikely(PyErr_Occurred()))
+#endif
+        goto bad;
+    #if PY_MAJOR_VERSION >= 3
+    if (local_tb) {
+        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
+            goto bad;
+    }
+    #endif
+    Py_XINCREF(local_tb);
+    Py_XINCREF(local_type);
+    Py_XINCREF(local_value);
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+#if CYTHON_COMPILING_IN_CPYTHON
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_SetExcInfo(local_type, local_value, local_tb);
+#endif
+    return 0;
+bad:
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
+}
+
+#if CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
+#ifdef __Pyx_CyFunction_USED
+    if (likely(PyCFunction_Check(func) || PyObject_TypeCheck(func, __pyx_CyFunctionType))) {
+#else
+    if (likely(PyCFunction_Check(func))) {
+#endif
+        if (likely(PyCFunction_GET_FLAGS(func) & METH_NOARGS)) {
+            return __Pyx_PyObject_CallMethO(func, NULL);
+        }
+    }
+    return __Pyx_PyObject_Call(func, __pyx_empty_tuple, NULL);
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+#else
+    PyErr_Restore(type, value, tb);
+#endif
+}
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+#else
+    PyErr_Fetch(type, value, tb);
+#endif
+}
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb,
+                        CYTHON_UNUSED PyObject *cause) {
+    Py_XINCREF(type);
+    if (!value || value == Py_None)
+        value = NULL;
+    else
+        Py_INCREF(value);
+    if (!tb || tb == Py_None)
+        tb = NULL;
+    else {
+        Py_INCREF(tb);
+        if (!PyTraceBack_Check(tb)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: arg 3 must be a traceback or None");
+            goto raise_error;
+        }
+    }
+    if (PyType_Check(type)) {
+#if CYTHON_COMPILING_IN_PYPY
+        if (!value) {
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+#endif
+        PyErr_NormalizeException(&type, &value, &tb);
+    } else {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(type);
+        Py_INCREF(type);
+        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+            PyErr_SetString(PyExc_TypeError,
+                "raise: exception class must be a subclass of BaseException");
+            goto raise_error;
+        }
+    }
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
+}
+#else
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
+    PyObject* owned_instance = NULL;
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
+    }
+    if (value == Py_None)
+        value = 0;
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (PyExceptionClass_Check(type)) {
+        PyObject *instance_class = NULL;
+        if (value && PyExceptionInstance_Check(value)) {
+            instance_class = (PyObject*) Py_TYPE(value);
+            if (instance_class != type) {
+                if (PyObject_IsSubclass(instance_class, type)) {
+                    type = instance_class;
+                } else {
+                    instance_class = NULL;
+                }
+            }
+        }
+        if (!instance_class) {
+            PyObject *args;
+            if (!value)
+                args = PyTuple_New(0);
+            else if (PyTuple_Check(value)) {
+                Py_INCREF(value);
+                args = value;
+            } else
+                args = PyTuple_Pack(1, value);
+            if (!args)
+                goto bad;
+            owned_instance = PyObject_Call(type, args, NULL);
+            Py_DECREF(args);
+            if (!owned_instance)
+                goto bad;
+            value = owned_instance;
+            if (!PyExceptionInstance_Check(value)) {
+                PyErr_Format(PyExc_TypeError,
+                             "calling %R should have returned an instance of "
+                             "BaseException, not %R",
+                             type, Py_TYPE(value));
+                goto bad;
+            }
+        }
+    } else {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+#if PY_VERSION_HEX >= 0x03030000
+    if (cause) {
+#else
+    if (cause && cause != Py_None) {
+#endif
+        PyObject *fixed_cause;
+        if (cause == Py_None) {
+            fixed_cause = NULL;
+        } else if (PyExceptionClass_Check(cause)) {
+            fixed_cause = PyObject_CallObject(cause, NULL);
+            if (fixed_cause == NULL)
+                goto bad;
+        } else if (PyExceptionInstance_Check(cause)) {
+            fixed_cause = cause;
+            Py_INCREF(fixed_cause);
+        } else {
+            PyErr_SetString(PyExc_TypeError,
+                            "exception causes must derive from "
+                            "BaseException");
+            goto bad;
+        }
+        PyException_SetCause(value, fixed_cause);
+    }
+    PyErr_SetObject(type, value);
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+bad:
+    Py_XDECREF(owned_instance);
+    return;
+}
+#endif
+
+static CYTHON_INLINE PyObject* __Pyx_decode_c_string(
+         const char* cstring, Py_ssize_t start, Py_ssize_t stop,
+         const char* encoding, const char* errors,
+         PyObject* (*decode_func)(const char *s, Py_ssize_t size, const char *errors)) {
+    Py_ssize_t length;
+    if (unlikely((start < 0) | (stop < 0))) {
+        length = strlen(cstring);
+        if (start < 0) {
+            start += length;
+            if (start < 0)
+                start = 0;
+        }
+        if (stop < 0)
+            stop += length;
+    }
+    length = stop - start;
+    if (unlikely(length <= 0))
+        return PyUnicode_FromUnicode(NULL, 0);
+    cstring += start;
+    if (decode_func) {
+        return decode_func(cstring, length, errors);
+    } else {
+        return PyUnicode_Decode(cstring, length, encoding, errors);
+    }
+}
+
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
+    PyObject *r;
+    if (!j) return NULL;
+    r = PyObject_GetItem(o, j);
+    Py_DECREF(j);
+    return r;
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyList_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyList_GET_SIZE(o)))) {
+        PyObject *r = PyList_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
+                                                              int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (wraparound & unlikely(i < 0)) i += PyTuple_GET_SIZE(o);
+    if ((!boundscheck) || likely((0 <= i) & (i < PyTuple_GET_SIZE(o)))) {
+        PyObject *r = PyTuple_GET_ITEM(o, i);
+        Py_INCREF(r);
+        return r;
+    }
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+#else
+    return PySequence_GetItem(o, i);
+#endif
+}
+static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
+                                                     int is_list, int wraparound, int boundscheck) {
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (is_list || PyList_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
+        if ((!boundscheck) || (likely((n >= 0) & (n < PyList_GET_SIZE(o))))) {
+            PyObject *r = PyList_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    }
+    else if (PyTuple_CheckExact(o)) {
+        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
+        if ((!boundscheck) || likely((n >= 0) & (n < PyTuple_GET_SIZE(o)))) {
+            PyObject *r = PyTuple_GET_ITEM(o, n);
+            Py_INCREF(r);
+            return r;
+        }
+    } else {
+        PySequenceMethods *m = Py_TYPE(o)->tp_as_sequence;
+        if (likely(m && m->sq_item)) {
+            if (wraparound && unlikely(i < 0) && likely(m->sq_length)) {
+                Py_ssize_t l = m->sq_length(o);
+                if (likely(l >= 0)) {
+                    i += l;
+                } else {
+                    if (PyErr_ExceptionMatches(PyExc_OverflowError))
+                        PyErr_Clear();
+                    else
+                        return NULL;
+                }
+            }
+            return m->sq_item(o, i);
+        }
+    }
+#else
+    if (is_list || PySequence_Check(o)) {
+        return PySequence_GetItem(o, i);
+    }
+#endif
+    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
+}
+
+static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
+    if (unlikely(!type)) {
+        PyErr_SetString(PyExc_SystemError, "Missing type object");
+        return 0;
+    }
+    if (likely(PyObject_TypeCheck(obj, type)))
+        return 1;
+    PyErr_Format(PyExc_TypeError, "Cannot convert %.200s to %.200s",
+                 Py_TYPE(obj)->tp_name, type->tp_name);
+    return 0;
+}
+
+static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+    if (s1 == s2) {
+        return (equals == Py_EQ);
+    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
+        const char *ps1, *ps2;
+        Py_ssize_t length = PyBytes_GET_SIZE(s1);
+        if (length != PyBytes_GET_SIZE(s2))
+            return (equals == Py_NE);
+        ps1 = PyBytes_AS_STRING(s1);
+        ps2 = PyBytes_AS_STRING(s2);
+        if (ps1[0] != ps2[0]) {
+            return (equals == Py_NE);
+        } else if (length == 1) {
+            return (equals == Py_EQ);
+        } else {
+            int result = memcmp(ps1, ps2, (size_t)length);
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
+        return (equals == Py_NE);
+    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
+        return (equals == Py_NE);
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+#endif
+}
+
+static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
+#if CYTHON_COMPILING_IN_PYPY
+    return PyObject_RichCompareBool(s1, s2, equals);
+#else
+#if PY_MAJOR_VERSION < 3
+    PyObject* owned_ref = NULL;
+#endif
+    int s1_is_unicode, s2_is_unicode;
+    if (s1 == s2) {
+        goto return_eq;
+    }
+    s1_is_unicode = PyUnicode_CheckExact(s1);
+    s2_is_unicode = PyUnicode_CheckExact(s2);
+#if PY_MAJOR_VERSION < 3
+    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
+        owned_ref = PyUnicode_FromObject(s2);
+        if (unlikely(!owned_ref))
+            return -1;
+        s2 = owned_ref;
+        s2_is_unicode = 1;
+    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
+        owned_ref = PyUnicode_FromObject(s1);
+        if (unlikely(!owned_ref))
+            return -1;
+        s1 = owned_ref;
+        s1_is_unicode = 1;
+    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
+        return __Pyx_PyBytes_Equals(s1, s2, equals);
+    }
+#endif
+    if (s1_is_unicode & s2_is_unicode) {
+        Py_ssize_t length;
+        int kind;
+        void *data1, *data2;
+        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
+            return -1;
+        length = __Pyx_PyUnicode_GET_LENGTH(s1);
+        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
+            goto return_ne;
+        }
+        kind = __Pyx_PyUnicode_KIND(s1);
+        if (kind != __Pyx_PyUnicode_KIND(s2)) {
+            goto return_ne;
+        }
+        data1 = __Pyx_PyUnicode_DATA(s1);
+        data2 = __Pyx_PyUnicode_DATA(s2);
+        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
+            goto return_ne;
+        } else if (length == 1) {
+            goto return_eq;
+        } else {
+            int result = memcmp(data1, data2, (size_t)(length * kind));
+            #if PY_MAJOR_VERSION < 3
+            Py_XDECREF(owned_ref);
+            #endif
+            return (equals == Py_EQ) ? (result == 0) : (result != 0);
+        }
+    } else if ((s1 == Py_None) & s2_is_unicode) {
+        goto return_ne;
+    } else if ((s2 == Py_None) & s1_is_unicode) {
+        goto return_ne;
+    } else {
+        int result;
+        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
+        if (!py_result)
+            return -1;
+        result = __Pyx_PyObject_IsTrue(py_result);
+        Py_DECREF(py_result);
+        return result;
+    }
+return_eq:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_EQ);
+return_ne:
+    #if PY_MAJOR_VERSION < 3
+    Py_XDECREF(owned_ref);
+    #endif
+    return (equals == Py_NE);
+#endif
+}
+
+static CYTHON_INLINE int __Pyx_CheckKeywordStrings(
+    PyObject *kwdict,
+    const char* function_name,
+    int kw_allowed)
+{
+    PyObject* key = 0;
+    Py_ssize_t pos = 0;
+#if CYTHON_COMPILING_IN_PYPY
+    if (!kw_allowed && PyDict_Next(kwdict, &pos, &key, 0))
+        goto invalid_keyword;
+    return 1;
+#else
+    while (PyDict_Next(kwdict, &pos, &key, 0)) {
+        #if PY_MAJOR_VERSION < 3
+        if (unlikely(!PyString_CheckExact(key)) && unlikely(!PyString_Check(key)))
+        #endif
+            if (unlikely(!PyUnicode_Check(key)))
+                goto invalid_keyword_type;
+    }
+    if ((!kw_allowed) && unlikely(key))
+        goto invalid_keyword;
+    return 1;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    return 0;
+#endif
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+    return 0;
+}
+
+static void __Pyx_WriteUnraisable(const char *name, CYTHON_UNUSED int clineno,
+                                  CYTHON_UNUSED int lineno, CYTHON_UNUSED const char *filename,
+                                  int full_traceback) {
+    PyObject *old_exc, *old_val, *old_tb;
+    PyObject *ctx;
+    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
+    if (full_traceback) {
+        Py_XINCREF(old_exc);
+        Py_XINCREF(old_val);
+        Py_XINCREF(old_tb);
+        __Pyx_ErrRestore(old_exc, old_val, old_tb);
+        PyErr_PrintEx(1);
+    }
+    #if PY_MAJOR_VERSION < 3
+    ctx = PyString_FromString(name);
+    #else
+    ctx = PyUnicode_FromString(name);
+    #endif
+    __Pyx_ErrRestore(old_exc, old_val, old_tb);
+    if (!ctx) {
+        PyErr_WriteUnraisable(Py_None);
+    } else {
+        PyErr_WriteUnraisable(ctx);
+        Py_DECREF(ctx);
+    }
+}
+
+static CYTHON_INLINE void __Pyx_RaiseUnboundLocalError(const char *varname) {
+    PyErr_Format(PyExc_UnboundLocalError, "local variable '%s' referenced before assignment", varname);
+}
+
+static double __Pyx__PyObject_AsDouble(PyObject* obj) {
+    PyObject* float_value;
+#if CYTHON_COMPILING_IN_PYPY
+    float_value = PyNumber_Float(obj);
+#else
+    PyNumberMethods *nb = Py_TYPE(obj)->tp_as_number;
+    if (likely(nb) && likely(nb->nb_float)) {
+        float_value = nb->nb_float(obj);
+        if (likely(float_value) && unlikely(!PyFloat_Check(float_value))) {
+            PyErr_Format(PyExc_TypeError,
+                "__float__ returned non-float (type %.200s)",
+                Py_TYPE(float_value)->tp_name);
+            Py_DECREF(float_value);
+            goto bad;
+        }
+    } else if (PyUnicode_CheckExact(obj) || PyBytes_CheckExact(obj)) {
+#if PY_MAJOR_VERSION >= 3
+        float_value = PyFloat_FromString(obj);
+#else
+        float_value = PyFloat_FromString(obj, 0);
+#endif
+    } else {
+        PyObject* args = PyTuple_New(1);
+        if (unlikely(!args)) goto bad;
+        PyTuple_SET_ITEM(args, 0, obj);
+        float_value = PyObject_Call((PyObject*)&PyFloat_Type, args, 0);
+        PyTuple_SET_ITEM(args, 0, 0);
+        Py_DECREF(args);
+    }
+#endif
+    if (likely(float_value)) {
+        double value = PyFloat_AS_DOUBLE(float_value);
+        Py_DECREF(float_value);
+        return value;
+    }
+bad:
+    return (double)-1;
+}
+
+#if !CYTHON_COMPILING_IN_CPYTHON
+static CYTHON_INLINE PyObject* __Pyx_PyBytes_Join(PyObject* sep, PyObject* values) {
+    return PyObject_CallMethodObjArgs(sep, __pyx_n_s_join, values, NULL);
+}
+#endif
+
+static CYTHON_INLINE void __Pyx_RaiseClosureNameError(const char *varname) {
+    PyErr_Format(PyExc_NameError, "free variable '%s' referenced before assignment in enclosing scope", varname);
+}
+
+static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
+    PyObject* fake_module;
+    PyTypeObject* cached_type = NULL;
+    fake_module = PyImport_AddModule((char*) "_cython_" CYTHON_ABI);
+    if (!fake_module) return NULL;
+    Py_INCREF(fake_module);
+    cached_type = (PyTypeObject*) PyObject_GetAttrString(fake_module, type->tp_name);
+    if (cached_type) {
+        if (!PyType_Check((PyObject*)cached_type)) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s is not a type object",
+                type->tp_name);
+            goto bad;
+        }
+        if (cached_type->tp_basicsize != type->tp_basicsize) {
+            PyErr_Format(PyExc_TypeError,
+                "Shared Cython type %.200s has the wrong size, try recompiling",
+                type->tp_name);
+            goto bad;
+        }
+    } else {
+        if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
+        PyErr_Clear();
+        if (PyType_Ready(type) < 0) goto bad;
+        if (PyObject_SetAttrString(fake_module, type->tp_name, (PyObject*) type) < 0)
+            goto bad;
+        Py_INCREF(type);
+        cached_type = type;
+    }
+done:
+    Py_DECREF(fake_module);
+    return cached_type;
+bad:
+    Py_XDECREF(cached_type);
+    cached_type = NULL;
+    goto done;
+}
+
+static PyObject *
+__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, CYTHON_UNUSED void *closure)
+{
+    if (unlikely(op->func_doc == NULL)) {
+        if (op->func.m_ml->ml_doc) {
+#if PY_MAJOR_VERSION >= 3
+            op->func_doc = PyUnicode_FromString(op->func.m_ml->ml_doc);
+#else
+            op->func_doc = PyString_FromString(op->func.m_ml->ml_doc);
+#endif
+            if (unlikely(op->func_doc == NULL))
+                return NULL;
+        } else {
+            Py_INCREF(Py_None);
+            return Py_None;
+        }
+    }
+    Py_INCREF(op->func_doc);
+    return op->func_doc;
+}
+static int
+__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp = op->func_doc;
+    if (value == NULL) {
+        value = Py_None;
+    }
+    Py_INCREF(value);
+    op->func_doc = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_name == NULL)) {
+#if PY_MAJOR_VERSION >= 3
+        op->func_name = PyUnicode_InternFromString(op->func.m_ml->ml_name);
+#else
+        op->func_name = PyString_InternFromString(op->func.m_ml->ml_name);
+#endif
+        if (unlikely(op->func_name == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_name);
+    return op->func_name;
+}
+static int
+__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_name;
+    Py_INCREF(value);
+    op->func_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_qualname);
+    return op->func_qualname;
+}
+static int
+__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = op->func_qualname;
+    Py_INCREF(value);
+    op->func_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_self(__pyx_CyFunctionObject *m, CYTHON_UNUSED void *closure)
+{
+    PyObject *self;
+    self = m->func_closure;
+    if (self == NULL)
+        self = Py_None;
+    Py_INCREF(self);
+    return self;
+}
+static PyObject *
+__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op)
+{
+    if (unlikely(op->func_dict == NULL)) {
+        op->func_dict = PyDict_New();
+        if (unlikely(op->func_dict == NULL))
+            return NULL;
+    }
+    Py_INCREF(op->func_dict);
+    return op->func_dict;
+}
+static int
+__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value)
+{
+    PyObject *tmp;
+    if (unlikely(value == NULL)) {
+        PyErr_SetString(PyExc_TypeError,
+               "function's dictionary may not be deleted");
+        return -1;
+    }
+    if (unlikely(!PyDict_Check(value))) {
+        PyErr_SetString(PyExc_TypeError,
+               "setting function's dictionary to a non-dict");
+        return -1;
+    }
+    tmp = op->func_dict;
+    Py_INCREF(value);
+    op->func_dict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op)
+{
+    Py_INCREF(op->func_globals);
+    return op->func_globals;
+}
+static PyObject *
+__Pyx_CyFunction_get_closure(CYTHON_UNUSED __pyx_CyFunctionObject *op)
+{
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+static PyObject *
+__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op)
+{
+    PyObject* result = (op->func_code) ? op->func_code : Py_None;
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
+    PyObject *res = op->defaults_getter((PyObject *) op);
+    if (unlikely(!res))
+        return -1;
+    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
+    Py_INCREF(op->defaults_tuple);
+    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
+    Py_INCREF(op->defaults_kwdict);
+    Py_DECREF(res);
+    return 0;
+}
+static int
+__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyTuple_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__defaults__ must be set to a tuple object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_tuple;
+    op->defaults_tuple = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_tuple;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_tuple;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value) {
+        value = Py_None;
+    } else if (value != Py_None && !PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__kwdefaults__ must be set to a dict object");
+        return -1;
+    }
+    Py_INCREF(value);
+    tmp = op->defaults_kwdict;
+    op->defaults_kwdict = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->defaults_kwdict;
+    if (unlikely(!result)) {
+        if (op->defaults_getter) {
+            if (__Pyx_CyFunction_init_defaults(op) < 0) return NULL;
+            result = op->defaults_kwdict;
+        } else {
+            result = Py_None;
+        }
+    }
+    Py_INCREF(result);
+    return result;
+}
+static int
+__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value) {
+    PyObject* tmp;
+    if (!value || value == Py_None) {
+        value = NULL;
+    } else if (!PyDict_Check(value)) {
+        PyErr_SetString(PyExc_TypeError,
+                        "__annotations__ must be set to a dict object");
+        return -1;
+    }
+    Py_XINCREF(value);
+    tmp = op->func_annotations;
+    op->func_annotations = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op) {
+    PyObject* result = op->func_annotations;
+    if (unlikely(!result)) {
+        result = PyDict_New();
+        if (unlikely(!result)) return NULL;
+        op->func_annotations = result;
+    }
+    Py_INCREF(result);
+    return result;
+}
+static PyGetSetDef __pyx_CyFunction_getsets[] = {
+    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
+    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
+    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
+    {(char *) "__self__", (getter)__Pyx_CyFunction_get_self, 0, 0, 0},
+    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
+    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
+    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
+    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
+    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
+    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
+    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
+    {0, 0, 0, 0, 0}
+};
+#ifndef PY_WRITE_RESTRICTED
+#define PY_WRITE_RESTRICTED WRITE_RESTRICTED
+#endif
+static PyMemberDef __pyx_CyFunction_members[] = {
+    {(char *) "__module__", T_OBJECT, offsetof(__pyx_CyFunctionObject, func.m_module), PY_WRITE_RESTRICTED, 0},
+    {0, 0, 0,  0, 0}
+};
+static PyObject *
+__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, CYTHON_UNUSED PyObject *args)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromString(m->func.m_ml->ml_name);
+#else
+    return PyString_FromString(m->func.m_ml->ml_name);
+#endif
+}
+static PyMethodDef __pyx_CyFunction_methods[] = {
+    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
+    {0, 0, 0, 0}
+};
+#if PY_VERSION_HEX < 0x030500A0
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
+#else
+#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func.m_weakreflist)
+#endif
+static PyObject *__Pyx_CyFunction_New(PyTypeObject *type, PyMethodDef *ml, int flags, PyObject* qualname,
+                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
+    __pyx_CyFunctionObject *op = PyObject_GC_New(__pyx_CyFunctionObject, type);
+    if (op == NULL)
+        return NULL;
+    op->flags = flags;
+    __Pyx_CyFunction_weakreflist(op) = NULL;
+    op->func.m_ml = ml;
+    op->func.m_self = (PyObject *) op;
+    Py_XINCREF(closure);
+    op->func_closure = closure;
+    Py_XINCREF(module);
+    op->func.m_module = module;
+    op->func_dict = NULL;
+    op->func_name = NULL;
+    Py_INCREF(qualname);
+    op->func_qualname = qualname;
+    op->func_doc = NULL;
+    op->func_classobj = NULL;
+    op->func_globals = globals;
+    Py_INCREF(op->func_globals);
+    Py_XINCREF(code);
+    op->func_code = code;
+    op->defaults_pyobjects = 0;
+    op->defaults = NULL;
+    op->defaults_tuple = NULL;
+    op->defaults_kwdict = NULL;
+    op->defaults_getter = NULL;
+    op->func_annotations = NULL;
+    PyObject_GC_Track(op);
+    return (PyObject *) op;
+}
+static int
+__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
+{
+    Py_CLEAR(m->func_closure);
+    Py_CLEAR(m->func.m_module);
+    Py_CLEAR(m->func_dict);
+    Py_CLEAR(m->func_name);
+    Py_CLEAR(m->func_qualname);
+    Py_CLEAR(m->func_doc);
+    Py_CLEAR(m->func_globals);
+    Py_CLEAR(m->func_code);
+    Py_CLEAR(m->func_classobj);
+    Py_CLEAR(m->defaults_tuple);
+    Py_CLEAR(m->defaults_kwdict);
+    Py_CLEAR(m->func_annotations);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_XDECREF(pydefaults[i]);
+        PyMem_Free(m->defaults);
+        m->defaults = NULL;
+    }
+    return 0;
+}
+static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
+{
+    PyObject_GC_UnTrack(m);
+    if (__Pyx_CyFunction_weakreflist(m) != NULL)
+        PyObject_ClearWeakRefs((PyObject *) m);
+    __Pyx_CyFunction_clear(m);
+    PyObject_GC_Del(m);
+}
+static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
+{
+    Py_VISIT(m->func_closure);
+    Py_VISIT(m->func.m_module);
+    Py_VISIT(m->func_dict);
+    Py_VISIT(m->func_name);
+    Py_VISIT(m->func_qualname);
+    Py_VISIT(m->func_doc);
+    Py_VISIT(m->func_globals);
+    Py_VISIT(m->func_code);
+    Py_VISIT(m->func_classobj);
+    Py_VISIT(m->defaults_tuple);
+    Py_VISIT(m->defaults_kwdict);
+    if (m->defaults) {
+        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
+        int i;
+        for (i = 0; i < m->defaults_pyobjects; i++)
+            Py_VISIT(pydefaults[i]);
+    }
+    return 0;
+}
+static PyObject *__Pyx_CyFunction_descr_get(PyObject *func, PyObject *obj, PyObject *type)
+{
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    if (m->flags & __Pyx_CYFUNCTION_STATICMETHOD) {
+        Py_INCREF(func);
+        return func;
+    }
+    if (m->flags & __Pyx_CYFUNCTION_CLASSMETHOD) {
+        if (type == NULL)
+            type = (PyObject *)(Py_TYPE(obj));
+        return PyMethod_New(func,
+                            type, (PyObject *)(Py_TYPE(type)));
+    }
+    if (obj == Py_None)
+        obj = NULL;
+    return PyMethod_New(func, obj, type);
+}
+static PyObject*
+__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
+{
+#if PY_MAJOR_VERSION >= 3
+    return PyUnicode_FromFormat("<cyfunction %U at %p>",
+                                op->func_qualname, (void *)op);
+#else
+    return PyString_FromFormat("<cyfunction %s at %p>",
+                               PyString_AsString(op->func_qualname), (void *)op);
+#endif
+}
+#if CYTHON_COMPILING_IN_PYPY
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+    PyCFunctionObject* f = (PyCFunctionObject*)func;
+    PyCFunction meth = PyCFunction_GET_FUNCTION(func);
+    PyObject *self = PyCFunction_GET_SELF(func);
+    Py_ssize_t size;
+    switch (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST)) {
+    case METH_VARARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0)
+            return (*meth)(self, arg);
+        break;
+    case METH_VARARGS | METH_KEYWORDS:
+        return (*(PyCFunctionWithKeywords)meth)(self, arg, kw);
+    case METH_NOARGS:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 0)
+                return (*meth)(self, NULL);
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes no arguments (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    case METH_O:
+        if (likely(kw == NULL) || PyDict_Size(kw) == 0) {
+            size = PyTuple_GET_SIZE(arg);
+            if (size == 1)
+                return (*meth)(self, PyTuple_GET_ITEM(arg, 0));
+            PyErr_Format(PyExc_TypeError,
+                "%.200s() takes exactly one argument (%zd given)",
+                f->m_ml->ml_name, size);
+            return NULL;
+        }
+        break;
+    default:
+        PyErr_SetString(PyExc_SystemError, "Bad call flags in "
+                        "__Pyx_CyFunction_Call. METH_OLDARGS is no "
+                        "longer supported!");
+        return NULL;
+    }
+    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
+                 f->m_ml->ml_name);
+    return NULL;
+}
+#else
+static PyObject * __Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
+	return PyCFunction_Call(func, arg, kw);
+}
+#endif
+static PyTypeObject __pyx_CyFunctionType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "cython_function_or_method",
+    sizeof(__pyx_CyFunctionObject),
+    0,
+    (destructor) __Pyx_CyFunction_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    (reprfunc) __Pyx_CyFunction_repr,
+    0,
+    0,
+    0,
+    0,
+    __Pyx_CyFunction_Call,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,
+    0,
+    (traverseproc) __Pyx_CyFunction_traverse,
+    (inquiry) __Pyx_CyFunction_clear,
+    0,
+#if PY_VERSION_HEX < 0x030500A0
+    offsetof(__pyx_CyFunctionObject, func_weakreflist),
+#else
+    offsetof(PyCFunctionObject, m_weakreflist),
+#endif
+    0,
+    0,
+    __pyx_CyFunction_methods,
+    __pyx_CyFunction_members,
+    __pyx_CyFunction_getsets,
+    0,
+    0,
+    __Pyx_CyFunction_descr_get,
+    0,
+    offsetof(__pyx_CyFunctionObject, func_dict),
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#endif
+};
+static int __Pyx_CyFunction_init(void) {
+#if !CYTHON_COMPILING_IN_PYPY
+    __pyx_CyFunctionType_type.tp_call = PyCFunction_Call;
+#endif
+    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
+    if (__pyx_CyFunctionType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults = PyMem_Malloc(size);
+    if (!m->defaults)
+        return PyErr_NoMemory();
+    memset(m->defaults, 0, size);
+    m->defaults_pyobjects = pyobjects;
+    return m->defaults;
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_tuple = tuple;
+    Py_INCREF(tuple);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->defaults_kwdict = dict;
+    Py_INCREF(dict);
+}
+static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
+    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
+    m->func_annotations = dict;
+    Py_INCREF(dict);
+}
+
+static int __Pyx_SetVtable(PyObject *dict, void *vtable) {
+#if PY_VERSION_HEX >= 0x02070000
+    PyObject *ob = PyCapsule_New(vtable, 0, 0);
+#else
+    PyObject *ob = PyCObject_FromVoidPtr(vtable, 0);
+#endif
+    if (!ob)
+        goto bad;
+    if (PyDict_SetItem(dict, __pyx_n_s_pyx_vtable, ob) < 0)
+        goto bad;
+    Py_DECREF(ob);
+    return 0;
+bad:
+    Py_XDECREF(ob);
+    return -1;
+}
+
+static void* __Pyx_GetVtable(PyObject *dict) {
+    void* ptr;
+    PyObject *ob = PyObject_GetItem(dict, __pyx_n_s_pyx_vtable);
+    if (!ob)
+        goto bad;
+#if PY_VERSION_HEX >= 0x02070000
+    ptr = PyCapsule_GetPointer(ob, 0);
+#else
+    ptr = PyCObject_AsVoidPtr(ob);
+#endif
+    if (!ptr && !PyErr_Occurred())
+        PyErr_SetString(PyExc_RuntimeError, "invalid vtable found for imported type");
+    Py_DECREF(ob);
+    return ptr;
+bad:
+    Py_XDECREF(ob);
+    return NULL;
+}
+
+static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
+    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
+    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
+        PyErr_Format(PyExc_ImportError,
+        #if PY_MAJOR_VERSION < 3
+            "cannot import name %.230s", PyString_AS_STRING(name));
+        #else
+            "cannot import name %S", name);
+        #endif
+    }
+    return value;
+}
+
+static PyObject *__Pyx_CalculateMetaclass(PyTypeObject *metaclass, PyObject *bases) {
+    Py_ssize_t i, nbases = PyTuple_GET_SIZE(bases);
+    for (i=0; i < nbases; i++) {
+        PyTypeObject *tmptype;
+        PyObject *tmp = PyTuple_GET_ITEM(bases, i);
+        tmptype = Py_TYPE(tmp);
+#if PY_MAJOR_VERSION < 3
+        if (tmptype == &PyClass_Type)
+            continue;
+#endif
+        if (!metaclass) {
+            metaclass = tmptype;
+            continue;
+        }
+        if (PyType_IsSubtype(metaclass, tmptype))
+            continue;
+        if (PyType_IsSubtype(tmptype, metaclass)) {
+            metaclass = tmptype;
+            continue;
+        }
+        PyErr_SetString(PyExc_TypeError,
+                        "metaclass conflict: "
+                        "the metaclass of a derived class "
+                        "must be a (non-strict) subclass "
+                        "of the metaclasses of all its bases");
+        return NULL;
+    }
+    if (!metaclass) {
+#if PY_MAJOR_VERSION < 3
+        metaclass = &PyClass_Type;
+#else
+        metaclass = &PyType_Type;
+#endif
+    }
+    Py_INCREF((PyObject*) metaclass);
+    return (PyObject*) metaclass;
+}
+
+static PyObject *__Pyx_Py3MetaclassPrepare(PyObject *metaclass, PyObject *bases, PyObject *name,
+                                           PyObject *qualname, PyObject *mkw, PyObject *modname, PyObject *doc) {
+    PyObject *ns;
+    if (metaclass) {
+        PyObject *prep = __Pyx_PyObject_GetAttrStr(metaclass, __pyx_n_s_prepare);
+        if (prep) {
+            PyObject *pargs = PyTuple_Pack(2, name, bases);
+            if (unlikely(!pargs)) {
+                Py_DECREF(prep);
+                return NULL;
+            }
+            ns = PyObject_Call(prep, pargs, mkw);
+            Py_DECREF(prep);
+            Py_DECREF(pargs);
+        } else {
+            if (unlikely(!PyErr_ExceptionMatches(PyExc_AttributeError)))
+                return NULL;
+            PyErr_Clear();
+            ns = PyDict_New();
+        }
+    } else {
+        ns = PyDict_New();
+    }
+    if (unlikely(!ns))
+        return NULL;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_module, modname) < 0)) goto bad;
+    if (unlikely(PyObject_SetItem(ns, __pyx_n_s_qualname, qualname) < 0)) goto bad;
+    if (unlikely(doc && PyObject_SetItem(ns, __pyx_n_s_doc, doc) < 0)) goto bad;
+    return ns;
+bad:
+    Py_DECREF(ns);
+    return NULL;
+}
+static PyObject *__Pyx_Py3ClassCreate(PyObject *metaclass, PyObject *name, PyObject *bases,
+                                      PyObject *dict, PyObject *mkw,
+                                      int calculate_metaclass, int allow_py2_metaclass) {
+    PyObject *result, *margs;
+    PyObject *owned_metaclass = NULL;
+    if (allow_py2_metaclass) {
+        owned_metaclass = PyObject_GetItem(dict, __pyx_n_s_metaclass);
+        if (owned_metaclass) {
+            metaclass = owned_metaclass;
+        } else if (likely(PyErr_ExceptionMatches(PyExc_KeyError))) {
+            PyErr_Clear();
+        } else {
+            return NULL;
+        }
+    }
+    if (calculate_metaclass && (!metaclass || PyType_Check(metaclass))) {
+        metaclass = __Pyx_CalculateMetaclass((PyTypeObject*) metaclass, bases);
+        Py_XDECREF(owned_metaclass);
+        if (unlikely(!metaclass))
+            return NULL;
+        owned_metaclass = metaclass;
+    }
+    margs = PyTuple_Pack(3, name, bases, dict);
+    if (unlikely(!margs)) {
+        result = NULL;
+    } else {
+        result = PyObject_Call(metaclass, margs, mkw);
+        Py_DECREF(margs);
+    }
+    Py_XDECREF(owned_metaclass);
+    return result;
+}
+
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = (start + end) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        PyThreadState_GET(), /*PyThreadState *tstate,*/
+        py_code,             /*PyCodeObject *code,*/
+        __pyx_d,      /*PyObject *globals,*/
+        0                    /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    py_frame->f_lineno = py_line;
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
+    PyObject *empty_list = 0;
+    PyObject *module = 0;
+    PyObject *global_dict = 0;
+    PyObject *empty_dict = 0;
+    PyObject *list;
+    #if PY_VERSION_HEX < 0x03030000
+    PyObject *py_import;
+    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
+    if (!py_import)
+        goto bad;
+    #endif
+    if (from_list)
+        list = from_list;
+    else {
+        empty_list = PyList_New(0);
+        if (!empty_list)
+            goto bad;
+        list = empty_list;
+    }
+    global_dict = PyModule_GetDict(__pyx_m);
+    if (!global_dict)
+        goto bad;
+    empty_dict = PyDict_New();
+    if (!empty_dict)
+        goto bad;
+    {
+        #if PY_MAJOR_VERSION >= 3
+        if (level == -1) {
+            if (strchr(__Pyx_MODULE_NAME, '.')) {
+                #if PY_VERSION_HEX < 0x03030000
+                PyObject *py_level = PyInt_FromLong(1);
+                if (!py_level)
+                    goto bad;
+                module = PyObject_CallFunctionObjArgs(py_import,
+                    name, global_dict, empty_dict, list, py_level, NULL);
+                Py_DECREF(py_level);
+                #else
+                module = PyImport_ImportModuleLevelObject(
+                    name, global_dict, empty_dict, list, 1);
+                #endif
+                if (!module) {
+                    if (!PyErr_ExceptionMatches(PyExc_ImportError))
+                        goto bad;
+                    PyErr_Clear();
+                }
+            }
+            level = 0;
+        }
+        #endif
+        if (!module) {
+            #if PY_VERSION_HEX < 0x03030000
+            PyObject *py_level = PyInt_FromLong(level);
+            if (!py_level)
+                goto bad;
+            module = PyObject_CallFunctionObjArgs(py_import,
+                name, global_dict, empty_dict, list, py_level, NULL);
+            Py_DECREF(py_level);
+            #else
+            module = PyImport_ImportModuleLevelObject(
+                name, global_dict, empty_dict, list, level);
+            #endif
+        }
+    }
+bad:
+    #if PY_VERSION_HEX < 0x03030000
+    Py_XDECREF(py_import);
+    #endif
+    Py_XDECREF(empty_list);
+    Py_XDECREF(empty_dict);
+    return module;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
+    {                                                                     \
+        func_type value = func_value;                                     \
+        if (sizeof(target_type) < sizeof(func_type)) {                    \
+            if (unlikely(value != (func_type) (target_type) value)) {     \
+                func_type zero = 0;                                       \
+                if (is_unsigned && unlikely(value < zero))                \
+                    goto raise_neg_overflow;                              \
+                else                                                      \
+                    goto raise_overflow;                                  \
+            }                                                             \
+        }                                                                 \
+        return (target_type) value;                                       \
+    }
+
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+ #endif
+#endif
+
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
+            } else if (sizeof(int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_unsigned_int(unsigned int value) {
+    const unsigned int neg_one = (unsigned int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(unsigned int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+        } else if (sizeof(unsigned int) <= sizeof(unsigned long long)) {
+            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+        }
+    } else {
+        if (sizeof(unsigned int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(unsigned int) <= sizeof(long long)) {
+            return PyLong_FromLongLong((long long) value);
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(unsigned int),
+                                     little, !is_unsigned);
+    }
+}
+
+static CYTHON_INLINE unsigned int __Pyx_PyInt_As_unsigned_int(PyObject *x) {
+    const unsigned int neg_one = (unsigned int) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(unsigned int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(unsigned int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (unsigned int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(unsigned int, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(unsigned int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(unsigned int) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(unsigned int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(unsigned int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(unsigned int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(unsigned int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(unsigned int, long, PyLong_AsLong(x))
+            } else if (sizeof(unsigned int) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(unsigned int, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            unsigned int val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (unsigned int) -1;
+        }
+    } else {
+        unsigned int val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (unsigned int) -1;
+        val = __Pyx_PyInt_As_unsigned_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to unsigned int");
+    return (unsigned int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to unsigned int");
+    return (unsigned int) -1;
+}
+
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
+            } else if (sizeof(long) <= sizeof(unsigned long long)) {
+                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+            }
+        } else {
+#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+ #if CYTHON_USE_PYLONG_INTERNALS
+            switch (Py_SIZE(x)) {
+                case  0: return 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+            }
+ #endif
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
+            } else if (sizeof(long) <= sizeof(long long)) {
+                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_Int(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+static CYTHON_INLINE void __Pyx_ExceptionSwap(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyThreadState *tstate = PyThreadState_GET();
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = *type;
+    tstate->exc_value = *value;
+    tstate->exc_traceback = *tb;
+#else
+    PyErr_GetExcInfo(&tmp_type, &tmp_value, &tmp_tb);
+    PyErr_SetExcInfo(*type, *value, *tb);
+#endif
+    *type = tmp_type;
+    *value = tmp_value;
+    *tb = tmp_tb;
+}
+
+static PyObject* __Pyx_PyObject_CallMethod1(PyObject* obj, PyObject* method_name, PyObject* arg) {
+    PyObject *method, *result = NULL;
+    method = __Pyx_PyObject_GetAttrStr(obj, method_name);
+    if (unlikely(!method)) goto bad;
+#if CYTHON_COMPILING_IN_CPYTHON
+    if (likely(PyMethod_Check(method))) {
+        PyObject *self = PyMethod_GET_SELF(method);
+        if (likely(self)) {
+            PyObject *args;
+            PyObject *function = PyMethod_GET_FUNCTION(method);
+            args = PyTuple_New(2);
+            if (unlikely(!args)) goto bad;
+            Py_INCREF(self);
+            PyTuple_SET_ITEM(args, 0, self);
+            Py_INCREF(arg);
+            PyTuple_SET_ITEM(args, 1, arg);
+            Py_INCREF(function);
+            Py_DECREF(method); method = NULL;
+            result = __Pyx_PyObject_Call(function, args, NULL);
+            Py_DECREF(args);
+            Py_DECREF(function);
+            return result;
+        }
+    }
+#endif
+    result = __Pyx_PyObject_CallOneArg(method, arg);
+bad:
+    Py_XDECREF(method);
+    return result;
+}
+
+static PyObject *__Pyx_Generator_Next(PyObject *self);
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value);
+static PyObject *__Pyx_Generator_Close(PyObject *self);
+static PyObject *__Pyx_Generator_Throw(PyObject *gen, PyObject *args);
+static PyTypeObject *__pyx_GeneratorType = 0;
+#define __Pyx_Generator_CheckExact(obj) (Py_TYPE(obj) == __pyx_GeneratorType)
+#define __Pyx_Generator_Undelegate(gen) Py_CLEAR((gen)->yieldfrom)
+#if 1 || PY_VERSION_HEX < 0x030300B0
+static int __Pyx_PyGen_FetchStopIterationValue(PyObject **pvalue) {
+    PyObject *et, *ev, *tb;
+    PyObject *value = NULL;
+    __Pyx_ErrFetch(&et, &ev, &tb);
+    if (!et) {
+        Py_XDECREF(tb);
+        Py_XDECREF(ev);
+        Py_INCREF(Py_None);
+        *pvalue = Py_None;
+        return 0;
+    }
+    if (unlikely(et != PyExc_StopIteration) &&
+            unlikely(!PyErr_GivenExceptionMatches(et, PyExc_StopIteration))) {
+        __Pyx_ErrRestore(et, ev, tb);
+        return -1;
+    }
+    if (likely(et == PyExc_StopIteration)) {
+        if (likely(!ev) || !PyObject_IsInstance(ev, PyExc_StopIteration)) {
+            if (!ev) {
+                Py_INCREF(Py_None);
+                ev = Py_None;
+            }
+            Py_XDECREF(tb);
+            Py_DECREF(et);
+            *pvalue = ev;
+            return 0;
+        }
+    }
+    PyErr_NormalizeException(&et, &ev, &tb);
+    if (unlikely(!PyObject_IsInstance(ev, PyExc_StopIteration))) {
+        __Pyx_ErrRestore(et, ev, tb);
+        return -1;
+    }
+    Py_XDECREF(tb);
+    Py_DECREF(et);
+#if PY_VERSION_HEX >= 0x030300A0
+    value = ((PyStopIterationObject *)ev)->value;
+    Py_INCREF(value);
+    Py_DECREF(ev);
+#else
+    {
+        PyObject* args = PyObject_GetAttr(ev, __pyx_n_s_args);
+        Py_DECREF(ev);
+        if (likely(args)) {
+            value = PyObject_GetItem(args, 0);
+            Py_DECREF(args);
+        }
+        if (unlikely(!value)) {
+            __Pyx_ErrRestore(NULL, NULL, NULL);
+            Py_INCREF(Py_None);
+            value = Py_None;
+        }
+    }
+#endif
+    *pvalue = value;
+    return 0;
+}
+#endif
+static CYTHON_INLINE
+void __Pyx_Generator_ExceptionClear(__pyx_GeneratorObject *self) {
+    PyObject *exc_type = self->exc_type;
+    PyObject *exc_value = self->exc_value;
+    PyObject *exc_traceback = self->exc_traceback;
+    self->exc_type = NULL;
+    self->exc_value = NULL;
+    self->exc_traceback = NULL;
+    Py_XDECREF(exc_type);
+    Py_XDECREF(exc_value);
+    Py_XDECREF(exc_traceback);
+}
+static CYTHON_INLINE
+int __Pyx_Generator_CheckRunning(__pyx_GeneratorObject *gen) {
+    if (unlikely(gen->is_running)) {
+        PyErr_SetString(PyExc_ValueError,
+                        "generator already executing");
+        return 1;
+    }
+    return 0;
+}
+static CYTHON_INLINE
+PyObject *__Pyx_Generator_SendEx(__pyx_GeneratorObject *self, PyObject *value) {
+    PyObject *retval;
+    assert(!self->is_running);
+    if (unlikely(self->resume_label == 0)) {
+        if (unlikely(value && value != Py_None)) {
+            PyErr_SetString(PyExc_TypeError,
+                            "can't send non-None value to a "
+                            "just-started generator");
+            return NULL;
+        }
+    }
+    if (unlikely(self->resume_label == -1)) {
+        PyErr_SetNone(PyExc_StopIteration);
+        return NULL;
+    }
+    if (value) {
+#if CYTHON_COMPILING_IN_PYPY
+#else
+        if (self->exc_traceback) {
+            PyThreadState *tstate = PyThreadState_GET();
+            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
+            PyFrameObject *f = tb->tb_frame;
+            Py_XINCREF(tstate->frame);
+            assert(f->f_back == NULL);
+            f->f_back = tstate->frame;
+        }
+#endif
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
+                            &self->exc_traceback);
+    } else {
+        __Pyx_Generator_ExceptionClear(self);
+    }
+    self->is_running = 1;
+    retval = self->body((PyObject *) self, value);
+    self->is_running = 0;
+    if (retval) {
+        __Pyx_ExceptionSwap(&self->exc_type, &self->exc_value,
+                            &self->exc_traceback);
+#if CYTHON_COMPILING_IN_PYPY
+#else
+        if (self->exc_traceback) {
+            PyTracebackObject *tb = (PyTracebackObject *) self->exc_traceback;
+            PyFrameObject *f = tb->tb_frame;
+            Py_CLEAR(f->f_back);
+        }
+#endif
+    } else {
+        __Pyx_Generator_ExceptionClear(self);
+    }
+    return retval;
+}
+static CYTHON_INLINE
+PyObject *__Pyx_Generator_FinishDelegation(__pyx_GeneratorObject *gen) {
+    PyObject *ret;
+    PyObject *val = NULL;
+    __Pyx_Generator_Undelegate(gen);
+    __Pyx_PyGen_FetchStopIterationValue(&val);
+    ret = __Pyx_Generator_SendEx(gen, val);
+    Py_XDECREF(val);
+    return ret;
+}
+static PyObject *__Pyx_Generator_Next(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
+    PyObject *yf = gen->yieldfrom;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        gen->is_running = 1;
+        ret = Py_TYPE(yf)->tp_iternext(yf);
+        gen->is_running = 0;
+        if (likely(ret)) {
+            return ret;
+        }
+        return __Pyx_Generator_FinishDelegation(gen);
+    }
+    return __Pyx_Generator_SendEx(gen, Py_None);
+}
+static PyObject *__Pyx_Generator_Send(PyObject *self, PyObject *value) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject*) self;
+    PyObject *yf = gen->yieldfrom;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        gen->is_running = 1;
+        if (__Pyx_Generator_CheckExact(yf)) {
+            ret = __Pyx_Generator_Send(yf, value);
+        } else {
+            if (value == Py_None)
+                ret = PyIter_Next(yf);
+            else
+                ret = __Pyx_PyObject_CallMethod1(yf, __pyx_n_s_send, value);
+        }
+        gen->is_running = 0;
+        if (likely(ret)) {
+            return ret;
+        }
+        return __Pyx_Generator_FinishDelegation(gen);
+    }
+    return __Pyx_Generator_SendEx(gen, value);
+}
+static int __Pyx_Generator_CloseIter(__pyx_GeneratorObject *gen, PyObject *yf) {
+    PyObject *retval = NULL;
+    int err = 0;
+    if (__Pyx_Generator_CheckExact(yf)) {
+        retval = __Pyx_Generator_Close(yf);
+        if (!retval)
+            return -1;
+    } else {
+        PyObject *meth;
+        gen->is_running = 1;
+        meth = PyObject_GetAttr(yf, __pyx_n_s_close);
+        if (unlikely(!meth)) {
+            if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
+                PyErr_WriteUnraisable(yf);
+            }
+            PyErr_Clear();
+        } else {
+            retval = PyObject_CallFunction(meth, NULL);
+            Py_DECREF(meth);
+            if (!retval)
+                err = -1;
+        }
+        gen->is_running = 0;
+    }
+    Py_XDECREF(retval);
+    return err;
+}
+static PyObject *__Pyx_Generator_Close(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject *retval, *raised_exception;
+    PyObject *yf = gen->yieldfrom;
+    int err = 0;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        Py_INCREF(yf);
+        err = __Pyx_Generator_CloseIter(gen, yf);
+        __Pyx_Generator_Undelegate(gen);
+        Py_DECREF(yf);
+    }
+    if (err == 0)
+        PyErr_SetNone(PyExc_GeneratorExit);
+    retval = __Pyx_Generator_SendEx(gen, NULL);
+    if (retval) {
+        Py_DECREF(retval);
+        PyErr_SetString(PyExc_RuntimeError,
+                        "generator ignored GeneratorExit");
+        return NULL;
+    }
+    raised_exception = PyErr_Occurred();
+    if (!raised_exception
+        || raised_exception == PyExc_StopIteration
+        || raised_exception == PyExc_GeneratorExit
+        || PyErr_GivenExceptionMatches(raised_exception, PyExc_GeneratorExit)
+        || PyErr_GivenExceptionMatches(raised_exception, PyExc_StopIteration))
+    {
+        if (raised_exception) PyErr_Clear();
+        Py_INCREF(Py_None);
+        return Py_None;
+    }
+    return NULL;
+}
+static PyObject *__Pyx_Generator_Throw(PyObject *self, PyObject *args) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject *typ;
+    PyObject *tb = NULL;
+    PyObject *val = NULL;
+    PyObject *yf = gen->yieldfrom;
+    if (!PyArg_UnpackTuple(args, (char *)"throw", 1, 3, &typ, &val, &tb))
+        return NULL;
+    if (unlikely(__Pyx_Generator_CheckRunning(gen)))
+        return NULL;
+    if (yf) {
+        PyObject *ret;
+        Py_INCREF(yf);
+        if (PyErr_GivenExceptionMatches(typ, PyExc_GeneratorExit)) {
+            int err = __Pyx_Generator_CloseIter(gen, yf);
+            Py_DECREF(yf);
+            __Pyx_Generator_Undelegate(gen);
+            if (err < 0)
+                return __Pyx_Generator_SendEx(gen, NULL);
+            goto throw_here;
+        }
+        gen->is_running = 1;
+        if (__Pyx_Generator_CheckExact(yf)) {
+            ret = __Pyx_Generator_Throw(yf, args);
+        } else {
+            PyObject *meth = PyObject_GetAttr(yf, __pyx_n_s_throw);
+            if (unlikely(!meth)) {
+                Py_DECREF(yf);
+                if (!PyErr_ExceptionMatches(PyExc_AttributeError)) {
+                    gen->is_running = 0;
+                    return NULL;
+                }
+                PyErr_Clear();
+                __Pyx_Generator_Undelegate(gen);
+                gen->is_running = 0;
+                goto throw_here;
+            }
+            ret = PyObject_CallObject(meth, args);
+            Py_DECREF(meth);
+        }
+        gen->is_running = 0;
+        Py_DECREF(yf);
+        if (!ret) {
+            ret = __Pyx_Generator_FinishDelegation(gen);
+        }
+        return ret;
+    }
+throw_here:
+    __Pyx_Raise(typ, val, tb, NULL);
+    return __Pyx_Generator_SendEx(gen, NULL);
+}
+static int __Pyx_Generator_traverse(PyObject *self, visitproc visit, void *arg) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    Py_VISIT(gen->closure);
+    Py_VISIT(gen->classobj);
+    Py_VISIT(gen->yieldfrom);
+    Py_VISIT(gen->exc_type);
+    Py_VISIT(gen->exc_value);
+    Py_VISIT(gen->exc_traceback);
+    return 0;
+}
+static int __Pyx_Generator_clear(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    Py_CLEAR(gen->closure);
+    Py_CLEAR(gen->classobj);
+    Py_CLEAR(gen->yieldfrom);
+    Py_CLEAR(gen->exc_type);
+    Py_CLEAR(gen->exc_value);
+    Py_CLEAR(gen->exc_traceback);
+    Py_CLEAR(gen->gi_name);
+    Py_CLEAR(gen->gi_qualname);
+    return 0;
+}
+static void __Pyx_Generator_dealloc(PyObject *self) {
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    PyObject_GC_UnTrack(gen);
+    if (gen->gi_weakreflist != NULL)
+        PyObject_ClearWeakRefs(self);
+    if (gen->resume_label > 0) {
+        PyObject_GC_Track(self);
+#if PY_VERSION_HEX >= 0x030400a1
+        if (PyObject_CallFinalizerFromDealloc(self))
+#else
+        Py_TYPE(gen)->tp_del(self);
+        if (self->ob_refcnt > 0)
+#endif
+        {
+            return;
+        }
+        PyObject_GC_UnTrack(self);
+    }
+    __Pyx_Generator_clear(self);
+    PyObject_GC_Del(gen);
+}
+static void __Pyx_Generator_del(PyObject *self) {
+    PyObject *res;
+    PyObject *error_type, *error_value, *error_traceback;
+    __pyx_GeneratorObject *gen = (__pyx_GeneratorObject *) self;
+    if (gen->resume_label <= 0)
+        return ;
+#if PY_VERSION_HEX < 0x030400a1
+    assert(self->ob_refcnt == 0);
+    self->ob_refcnt = 1;
+#endif
+    __Pyx_ErrFetch(&error_type, &error_value, &error_traceback);
+    res = __Pyx_Generator_Close(self);
+    if (res == NULL)
+        PyErr_WriteUnraisable(self);
+    else
+        Py_DECREF(res);
+    __Pyx_ErrRestore(error_type, error_value, error_traceback);
+#if PY_VERSION_HEX < 0x030400a1
+    assert(self->ob_refcnt > 0);
+    if (--self->ob_refcnt == 0) {
+        return;
+    }
+    {
+        Py_ssize_t refcnt = self->ob_refcnt;
+        _Py_NewReference(self);
+        self->ob_refcnt = refcnt;
+    }
+#if CYTHON_COMPILING_IN_CPYTHON
+    assert(PyType_IS_GC(self->ob_type) &&
+           _Py_AS_GC(self)->gc.gc_refs != _PyGC_REFS_UNTRACKED);
+    _Py_DEC_REFTOTAL;
+#endif
+#ifdef COUNT_ALLOCS
+    --Py_TYPE(self)->tp_frees;
+    --Py_TYPE(self)->tp_allocs;
+#endif
+#endif
+}
+static PyObject *
+__Pyx_Generator_get_name(__pyx_GeneratorObject *self)
+{
+    Py_INCREF(self->gi_name);
+    return self->gi_name;
+}
+static int
+__Pyx_Generator_set_name(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__name__ must be set to a string object");
+        return -1;
+    }
+    tmp = self->gi_name;
+    Py_INCREF(value);
+    self->gi_name = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyObject *
+__Pyx_Generator_get_qualname(__pyx_GeneratorObject *self)
+{
+    Py_INCREF(self->gi_qualname);
+    return self->gi_qualname;
+}
+static int
+__Pyx_Generator_set_qualname(__pyx_GeneratorObject *self, PyObject *value)
+{
+    PyObject *tmp;
+#if PY_MAJOR_VERSION >= 3
+    if (unlikely(value == NULL || !PyUnicode_Check(value))) {
+#else
+    if (unlikely(value == NULL || !PyString_Check(value))) {
+#endif
+        PyErr_SetString(PyExc_TypeError,
+                        "__qualname__ must be set to a string object");
+        return -1;
+    }
+    tmp = self->gi_qualname;
+    Py_INCREF(value);
+    self->gi_qualname = value;
+    Py_XDECREF(tmp);
+    return 0;
+}
+static PyGetSetDef __pyx_Generator_getsets[] = {
+    {(char *) "__name__", (getter)__Pyx_Generator_get_name, (setter)__Pyx_Generator_set_name,
+     (char*) PyDoc_STR("name of the generator"), 0},
+    {(char *) "__qualname__", (getter)__Pyx_Generator_get_qualname, (setter)__Pyx_Generator_set_qualname,
+     (char*) PyDoc_STR("qualified name of the generator"), 0},
+    {0, 0, 0, 0, 0}
+};
+static PyMemberDef __pyx_Generator_memberlist[] = {
+    {(char *) "gi_running", T_BOOL, offsetof(__pyx_GeneratorObject, is_running), READONLY, NULL},
+    {0, 0, 0, 0, 0}
+};
+static PyMethodDef __pyx_Generator_methods[] = {
+    {"send", (PyCFunction) __Pyx_Generator_Send, METH_O, 0},
+    {"throw", (PyCFunction) __Pyx_Generator_Throw, METH_VARARGS, 0},
+    {"close", (PyCFunction) __Pyx_Generator_Close, METH_NOARGS, 0},
+    {0, 0, 0, 0}
+};
+static PyTypeObject __pyx_GeneratorType_type = {
+    PyVarObject_HEAD_INIT(0, 0)
+    "generator",
+    sizeof(__pyx_GeneratorObject),
+    0,
+    (destructor) __Pyx_Generator_dealloc,
+    0,
+    0,
+    0,
+#if PY_MAJOR_VERSION < 3
+    0,
+#else
+    0,
+#endif
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_HAVE_FINALIZE,
+    0,
+    (traverseproc) __Pyx_Generator_traverse,
+    0,
+    0,
+    offsetof(__pyx_GeneratorObject, gi_weakreflist),
+    0,
+    (iternextfunc) __Pyx_Generator_Next,
+    __pyx_Generator_methods,
+    __pyx_Generator_memberlist,
+    __pyx_Generator_getsets,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    0,
+#else
+    __Pyx_Generator_del,
+#endif
+    0,
+#if PY_VERSION_HEX >= 0x030400a1
+    __Pyx_Generator_del,
+#endif
+};
+static __pyx_GeneratorObject *__Pyx_Generator_New(__pyx_generator_body_t body,
+                                                  PyObject *closure, PyObject *name, PyObject *qualname) {
+    __pyx_GeneratorObject *gen =
+        PyObject_GC_New(__pyx_GeneratorObject, &__pyx_GeneratorType_type);
+    if (gen == NULL)
+        return NULL;
+    gen->body = body;
+    gen->closure = closure;
+    Py_XINCREF(closure);
+    gen->is_running = 0;
+    gen->resume_label = 0;
+    gen->classobj = NULL;
+    gen->yieldfrom = NULL;
+    gen->exc_type = NULL;
+    gen->exc_value = NULL;
+    gen->exc_traceback = NULL;
+    gen->gi_weakreflist = NULL;
+    Py_XINCREF(qualname);
+    gen->gi_qualname = qualname;
+    Py_XINCREF(name);
+    gen->gi_name = name;
+    PyObject_GC_Track(gen);
+    return gen;
+}
+static int __pyx_Generator_init(void) {
+    __pyx_GeneratorType_type.tp_getattro = PyObject_GenericGetAttr;
+    __pyx_GeneratorType_type.tp_iter = PyObject_SelfIter;
+    __pyx_GeneratorType = __Pyx_FetchCommonType(&__pyx_GeneratorType_type);
+    if (__pyx_GeneratorType == NULL) {
+        return -1;
+    }
+    return 0;
+}
+
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+#ifndef __PYX_HAVE_RT_ImportModule
+#define __PYX_HAVE_RT_ImportModule
+static PyObject *__Pyx_ImportModule(const char *name) {
+    PyObject *py_name = 0;
+    PyObject *py_module = 0;
+    py_name = __Pyx_PyIdentifier_FromString(name);
+    if (!py_name)
+        goto bad;
+    py_module = PyImport_Import(py_name);
+    Py_DECREF(py_name);
+    return py_module;
+bad:
+    Py_XDECREF(py_name);
+    return 0;
+}
+#endif
+
+#ifndef __PYX_HAVE_RT_ImportType
+#define __PYX_HAVE_RT_ImportType
+static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class_name,
+    size_t size, int strict)
+{
+    PyObject *py_module = 0;
+    PyObject *result = 0;
+    PyObject *py_name = 0;
+    char warning[200];
+    Py_ssize_t basicsize;
+#ifdef Py_LIMITED_API
+    PyObject *py_basicsize;
+#endif
+    py_module = __Pyx_ImportModule(module_name);
+    if (!py_module)
+        goto bad;
+    py_name = __Pyx_PyIdentifier_FromString(class_name);
+    if (!py_name)
+        goto bad;
+    result = PyObject_GetAttr(py_module, py_name);
+    Py_DECREF(py_name);
+    py_name = 0;
+    Py_DECREF(py_module);
+    py_module = 0;
+    if (!result)
+        goto bad;
+    if (!PyType_Check(result)) {
+        PyErr_Format(PyExc_TypeError,
+            "%.200s.%.200s is not a type object",
+            module_name, class_name);
+        goto bad;
+    }
+#ifndef Py_LIMITED_API
+    basicsize = ((PyTypeObject *)result)->tp_basicsize;
+#else
+    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
+    if (!py_basicsize)
+        goto bad;
+    basicsize = PyLong_AsSsize_t(py_basicsize);
+    Py_DECREF(py_basicsize);
+    py_basicsize = 0;
+    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
+        goto bad;
+#endif
+    if (!strict && (size_t)basicsize > size) {
+        PyOS_snprintf(warning, sizeof(warning),
+            "%s.%s size changed, may indicate binary incompatibility",
+            module_name, class_name);
+        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
+    }
+    else if ((size_t)basicsize != size) {
+        PyErr_Format(PyExc_ValueError,
+            "%.200s.%.200s has the wrong size, try recompiling",
+            module_name, class_name);
+        goto bad;
+    }
+    return (PyTypeObject *)result;
+bad:
+    Py_XDECREF(py_module);
+    Py_XDECREF(result);
+    return NULL;
+}
+#endif
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+#if PY_VERSION_HEX < 0x03030000
+        char* defenc_c;
+        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+        if (!defenc) return NULL;
+        defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        {
+            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+            char* c;
+            for (c = defenc_c; c < end; c++) {
+                if ((unsigned char) (*c) >= 128) {
+                    PyUnicode_AsASCIIString(o);
+                    return NULL;
+                }
+            }
+        }
+#endif
+        *length = PyBytes_GET_SIZE(defenc);
+        return defenc_c;
+#else
+        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+        if (PyUnicode_IS_ASCII(o)) {
+            *length = PyUnicode_GET_LENGTH(o);
+            return PyUnicode_AsUTF8(o);
+        } else {
+            PyUnicode_AsASCIIString(o);
+            return NULL;
+        }
+#else
+        return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+#endif
+    } else
+#endif
+#if !CYTHON_COMPILING_IN_PYPY
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+  PyNumberMethods *m;
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (PyInt_Check(x) || PyLong_Check(x))
+#else
+  if (PyLong_Check(x))
+#endif
+    return Py_INCREF(x), x;
+  m = Py_TYPE(x)->tp_as_number;
+#if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = PyNumber_Long(x);
+  }
+#else
+  if (m && m->nb_int) {
+    name = "int";
+    res = PyNumber_Long(x);
+  }
+#endif
+  if (res) {
+#if PY_MAJOR_VERSION < 3
+    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+#else
+    if (!PyLong_Check(res)) {
+#endif
+      PyErr_Format(PyExc_TypeError,
+                   "__%.4s__ returned non-%.4s (type %.200s)",
+                   name, name, Py_TYPE(res)->tp_name);
+      Py_DECREF(res);
+      return NULL;
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b)))
+      return PyInt_AS_LONG(b);
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
+     #if CYTHON_USE_PYLONG_INTERNALS
+       switch (Py_SIZE(b)) {
+       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
+       case  0: return 0;
+       case  1: return ((PyLongObject*)b)->ob_digit[0];
+       }
+     #endif
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */
diff --git a/fiona/rfc3339.py b/fiona/rfc3339.py
new file mode 100644
index 0000000..3f6a430
--- /dev/null
+++ b/fiona/rfc3339.py
@@ -0,0 +1,80 @@
+# Fiona's date and time is founded on RFC 3339.
+#
+# OGR knows 3 time "zones": GMT, "local time", amd "unknown". Fiona, when
+# writing will convert times with a timezone offset to GMT (Z) and otherwise
+# will write times with the unknown zone.
+
+import datetime
+import logging
+import re
+
+log = logging.getLogger("Fiona")
+
+# Fiona's 'date', 'time', and 'datetime' types are sub types of 'str'.
+
+class FionaDateType(str):
+    """Dates without time."""
+
+class FionaTimeType(str):
+    """Times without dates."""
+
+class FionaDateTimeType(str):
+    """Dates and times."""
+
+pattern_date = re.compile(r"(\d\d\d\d)(-)?(\d\d)(-)?(\d\d)")
+pattern_time = re.compile(
+    r"(\d\d)(:)?(\d\d)(:)?(\d\d)?(\.\d+)?(Z|([+-])?(\d\d)?(:)?(\d\d))?" )
+pattern_datetime = re.compile(
+    r"(\d\d\d\d)(-)?(\d\d)(-)?(\d\d)(T)?(\d\d)(:)?(\d\d)(:)?(\d\d)?(\.\d+)?(Z|([+-])?(\d\d)?(:)?(\d\d))?" )
+
+class group_accessor(object):
+    def __init__(self, m):
+        self.match = m
+    def group(self, i):
+        try:
+            return self.match.group(i) or 0
+        except IndexError:
+            return 0
+
+def parse_time(text):
+    """Given a RFC 3339 time, returns a tz-naive datetime tuple"""
+    match = re.search(pattern_time, text)
+    if match is None:
+        raise ValueError("Time data '%s' does not match pattern" % text)
+    g = group_accessor(match)
+    log.debug("Match groups: %s", match.groups())
+    return (0, 0, 0,
+        int(g.group(1)), 
+        int(g.group(3)), 
+        int(g.group(5)), 
+        1000000.0*float(g.group(6)) )
+
+def parse_date(text):
+    """Given a RFC 3339 date, returns a tz-naive datetime tuple"""
+    match = re.search(pattern_date, text)
+    if match is None:
+        raise ValueError("Time data '%s' does not match pattern" % text)
+    g = group_accessor(match)
+    log.debug("Match groups: %s", match.groups())
+    return (
+        int(g.group(1)), 
+        int(g.group(3)), 
+        int(g.group(5)),
+        0, 0, 0, 0.0 )
+
+def parse_datetime(text):
+    """Given a RFC 3339 datetime, returns a tz-naive datetime tuple"""
+    match = re.search(pattern_datetime, text)
+    if match is None:
+        raise ValueError("Time data '%s' does not match pattern" % text)
+    g = group_accessor(match)
+    log.debug("Match groups: %s", match.groups())
+    return (
+        int(g.group(1)), 
+        int(g.group(3)), 
+        int(g.group(5)),
+        int(g.group(7)), 
+        int(g.group(9)), 
+        int(g.group(11)), 
+        1000000.0*float(g.group(12)) )
+
diff --git a/fiona/tool.py b/fiona/tool.py
new file mode 100644
index 0000000..493f589
--- /dev/null
+++ b/fiona/tool.py
@@ -0,0 +1,257 @@
+""" fiona.tool
+
+Converts Shapefiles (etc) to GeoJSON.
+"""
+
+import json
+import logging
+import pprint
+import sys
+
+from six.moves import map
+
+import fiona
+
+
+def open_output(arg):
+    """Returns an opened output stream."""
+    if arg == sys.stdout:
+        return arg
+    else:
+        return open(arg, 'w')
+
+def make_ld_context(context_items):
+    """Returns a JSON-LD Context object. 
+    
+    See http://json-ld.org/spec/latest/json-ld."""
+    ctx = {
+        'type': '@type',
+        'id': '@id',
+        'FeatureCollection': '_:n1',
+        '_crs': {'@id': '_:n2', '@type': '@id'},
+        'bbox': 'http://geovocab.org/geometry#bbox',
+        'features': '_:n3',
+        'Feature': 'http://geovocab.org/spatial#Feature',
+        'properties': '_:n4',
+        'geometry': 'http://geovocab.org/geometry#geometry',
+        'Point': 'http://geovocab.org/geometry#Point',
+        'LineString': 'http://geovocab.org/geometry#LineString',
+        'Polygon': 'http://geovocab.org/geometry#Polygon',
+        'MultiPoint': 'http://geovocab.org/geometry#MultiPoint',
+        'MultiLineString': 'http://geovocab.org/geometry#MultiLineString',
+        'MultiPolygon': 'http://geovocab.org/geometry#MultiPolygon',
+        'GeometryCollection': 
+            'http://geovocab.org/geometry#GeometryCollection',
+        'coordinates': '_:n5'}
+    for item in context_items or []:
+        t, uri = item.split("=")
+        ctx[t.strip()] = uri.strip()
+    return ctx
+
+def crs_uri(crs):
+    """Returns a CRS URN computed from a crs dict."""
+    # References version 6.3 of the EPSG database.
+    # TODO: get proper version from GDAL/OGR API?
+    if crs['proj'] == 'longlat' and (
+            crs['datum'] == 'WGS84' or crs['ellps'] == 'WGS84'):
+        return 'urn:ogc:def:crs:OGC:1.3:CRS84'
+    elif 'epsg:' in crs.get('init', ''):
+        epsg, code = crs['init'].split(':')
+        return 'urn:ogc:def:crs:EPSG::%s' % code
+    else:
+        return None
+
+def id_record(rec):
+    """Converts a record's id to a blank node id and returns the record."""
+    rec['id'] = '_:f%s' % rec['id']
+    return rec
+
+def main(args, dump_kw, item_sep, ignore_errors):
+    """Returns 0 on success, 1 on error, for sys.exit."""
+    with fiona.drivers():
+        
+        with open_output(args.outfile) as sink:
+
+            with fiona.open(args.infile) as source:
+
+                meta = source.meta.copy()
+                meta['fields'] = dict(source.schema['properties'].items())
+
+                if args.description:
+                    meta['name'] = args.infile
+                    meta['schema']['properties'] = list(
+                        source.schema['properties'].items())
+                    json.dump(meta, sink, **dump_kw)
+                
+                elif args.record_buffered:
+                    # Buffer GeoJSON data at the feature level for smaller
+                    # memory footprint.
+
+                    indented = bool(args.indent)
+                    rec_indent = "\n" + " " * (2 * (args.indent or 0))
+
+                    collection = {
+                        'type': 'FeatureCollection',  
+                        'fiona:schema': meta['schema'], 
+                        'fiona:crs': meta['crs'],
+                        '_crs': crs_uri(meta['crs']),
+                        'features': [] }
+                    if args.use_ld_context:
+                        collection['@context'] = make_ld_context(
+                            args.ld_context_items)
+                    
+                    head, tail = json.dumps(collection, **dump_kw).split('[]')
+                    
+                    sink.write(head)
+                    sink.write("[")
+                    
+                    itr = iter(source)
+                    
+                    # Try the first record.
+                    try:
+                        i, first = 0, next(itr)
+                        if args.use_ld_context:
+                            first = id_record(first)
+                        if indented:
+                            sink.write(rec_indent)
+                        sink.write(
+                            json.dumps(first, **dump_kw
+                                ).replace("\n", rec_indent))
+                    except StopIteration:
+                        pass
+                    except Exception as exc:
+                        # Ignoring errors is *not* the default.
+                        if ignore_errors:
+                            logger.error(
+                                "failed to serialize file record %d (%s), "
+                                "continuing",
+                                i, exc)
+                        else:
+                            # Log error and close up the GeoJSON, leaving it
+                            # more or less valid no matter what happens above.
+                            logger.critical(
+                                "failed to serialize file record %d (%s), "
+                                "quiting",
+                                i, exc)
+                            sink.write("]")
+                            sink.write(tail)
+                            if indented:
+                                sink.write("\n")
+                            return 1
+                    
+                    # Because trailing commas aren't valid in JSON arrays
+                    # we'll write the item separator before each of the
+                    # remaining features.
+                    for i, rec in enumerate(itr, 1):
+                        try:
+                            if args.use_ld_context:
+                                rec = id_record(rec)
+                            if indented:
+                                sink.write(rec_indent)
+                            sink.write(item_sep)
+                            sink.write(
+                                json.dumps(rec, **dump_kw
+                                    ).replace("\n", rec_indent))
+                        except Exception as exc:
+                            if ignore_errors:
+                                logger.error(
+                                    "failed to serialize file record %d (%s), "
+                                    "continuing",
+                                    i, exc)
+                            else:
+                                logger.critical(
+                                    "failed to serialize file record %d (%s), "
+                                    "quiting",
+                                    i, exc)
+                                sink.write("]")
+                                sink.write(tail)
+                                if indented:
+                                    sink.write("\n")
+                                return 1
+                    
+                    # Close up the GeoJSON after writing all features.
+                    sink.write("]")
+                    sink.write(tail)
+                    if indented:
+                        sink.write("\n")
+
+                else:
+                    # Buffer GeoJSON data at the collection level. The default.
+                    collection = {
+                        'type': 'FeatureCollection', 
+                        'fiona:schema': meta['schema'], 
+                        'fiona:crs': meta['crs'],
+                        '_crs': crs_uri(meta['crs']) }
+                    if args.use_ld_context:
+                        collection['@context'] = make_ld_context(
+                            args.ld_context_items)
+                        collection['features'] = list(map(id_record, source))
+                    else:
+                        collection['features'] = list(source)
+                    json.dump(collection, sink, **dump_kw)
+
+    return 0
+
+if __name__ == '__main__':
+
+    import argparse
+
+    logging.basicConfig(stream=sys.stderr, level=logging.INFO)
+    logger = logging.getLogger('fiona.tool')
+
+    parser = argparse.ArgumentParser(
+        description="Serialize a file's records or description to GeoJSON")
+    
+    parser.add_argument('infile', 
+        help="input file name")
+    parser.add_argument('outfile',
+        nargs='?', 
+        help="output file name, defaults to stdout if omitted", 
+        default=sys.stdout)
+    parser.add_argument('-d', '--description',
+        action='store_true', 
+        help="serialize file's data description (schema) only")
+    parser.add_argument('-n', '--indent', 
+        type=int,
+        default=None,
+        metavar='N',
+        help="indentation level in N number of chars")
+    parser.add_argument('--compact', 
+        action='store_true',
+        help="use compact separators (',', ':')")
+    parser.add_argument('--encoding', 
+        default=None,
+        metavar='ENC',
+        help="Specify encoding of the input file")
+    parser.add_argument('--record-buffered',
+        dest='record_buffered',
+        action='store_true',
+        help="Economical buffering of writes at record, not collection (default), level")
+    parser.add_argument('--ignore-errors',
+        dest='ignore_errors',
+        action='store_true',
+        help="log errors but do not stop serialization")
+    parser.add_argument('--use-ld-context',
+        dest='use_ld_context',
+        action='store_true',
+        help="add a JSON-LD context to JSON output")
+    parser.add_argument('--add-ld-context-item',
+        dest='ld_context_items',
+        action='append',
+        metavar='TERM=URI',
+        help="map a term to a URI and add it to the output's JSON LD context")
+
+    args = parser.parse_args()
+
+    # Keyword args to be used in all following json.dump* calls.
+    dump_kw = {'sort_keys': True}
+    if args.indent:
+        dump_kw['indent'] = args.indent
+    if args.compact:
+        dump_kw['separators'] = (',', ':')
+
+    item_sep = args.compact and ',' or ', '
+    ignore_errors = args.ignore_errors
+
+    sys.exit(main(args, dump_kw, item_sep, ignore_errors))
+
diff --git a/fiona/transform.py b/fiona/transform.py
new file mode 100644
index 0000000..d80297b
--- /dev/null
+++ b/fiona/transform.py
@@ -0,0 +1,17 @@
+"""Raster warping and reprojection"""
+
+from fiona._transform import _transform, _transform_geom
+
+
+def transform(src_crs, dst_crs, xs, ys):
+    """Return transformed vectors of x and y."""
+    return _transform(src_crs, dst_crs, xs, ys)
+
+
+def transform_geom(
+        src_crs, dst_crs, geom,
+        antimeridian_cutting=False, antimeridian_offset=10.0, precision=-1):
+    """Return transformed geometry."""
+    return _transform_geom(
+        src_crs, dst_crs, geom,
+        antimeridian_cutting, antimeridian_offset, precision)
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..b4e5efc
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,10 @@
+[nosetests]
+tests = tests
+nocapture = 1
+verbosity = 3
+
+[egg_info]
+tag_build = 
+tag_date = 0
+tag_svn_revision = 0
+
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..68c8241
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,148 @@
+import logging
+import os
+import subprocess
+import sys
+
+try:
+    from setuptools import setup
+except ImportError:
+    from distutils.core import setup
+# Have to do this after importing setuptools, which monkey patches distutils.
+from distutils.extension import Extension
+
+# Use Cython if available.
+try:
+    from Cython.Build import cythonize
+except ImportError:
+    cythonize = None
+
+logging.basicConfig()
+log = logging.getLogger()
+
+# Parse the version from the fiona module.
+with open('fiona/__init__.py', 'r') as f:
+    for line in f:
+        if line.find("__version__") >= 0:
+            version = line.split("=")[1].strip()
+            version = version.strip('"')
+            version = version.strip("'")
+            continue
+
+# Fiona's auxiliary files are UTF-8 encoded and we'll specify this when
+# reading with Python 3+
+open_kwds = {}
+if sys.version_info > (3,):
+    open_kwds['encoding'] = 'utf-8'
+
+with open('VERSION.txt', 'w', **open_kwds) as f:
+    f.write(version)
+
+with open('README.rst', **open_kwds) as f:
+    readme = f.read()
+
+with open('CREDITS.txt', **open_kwds) as f:
+    credits = f.read()
+
+with open('CHANGES.txt', **open_kwds) as f:
+    changes = f.read()
+
+# By default we'll try to get options via gdal-config. On systems without,
+# options will need to be set in setup.cfg or on the setup command line.
+include_dirs = []
+library_dirs = []
+libraries = []
+extra_link_args = []
+
+try:
+    gdal_config = "gdal-config"
+    with open("gdal-config.txt", "w") as gcfg:
+        subprocess.call([gdal_config, "--cflags"], stdout=gcfg)
+        subprocess.call([gdal_config, "--libs"], stdout=gcfg)
+    with open("gdal-config.txt", "r") as gcfg:
+        cflags = gcfg.readline().strip()
+        libs = gcfg.readline().strip()
+    for item in cflags.split():
+        if item.startswith("-I"):
+            include_dirs.extend(item[2:].split(":"))
+    for item in libs.split():
+        if item.startswith("-L"):
+            library_dirs.extend(item[2:].split(":"))
+        elif item.startswith("-l"):
+            libraries.append(item[2:])
+        else:
+            # e.g. -framework GDAL
+            extra_link_args.append(item)
+
+except Exception as e:
+    log.warning("Failed to get options via gdal-config: %s", str(e))
+
+ext_options = dict(
+    include_dirs=include_dirs,
+    library_dirs=library_dirs,
+    libraries=libraries,
+    extra_link_args=extra_link_args)
+
+# When building from a repo, Cython is required.
+if os.path.exists("MANIFEST.in"):
+    log.info("MANIFEST.in found, presume a repo, cythonizing...")
+    if not cythonize:
+        log.critical(
+            "Cython.Build.cythonize not found. "
+            "Cython is required to build from a repo.")
+        sys.exit(1)
+    ext_modules = cythonize([
+        Extension('fiona._geometry', ['fiona/_geometry.pyx'], **ext_options),
+        Extension('fiona._transform', ['fiona/_transform.pyx'], **ext_options),
+        Extension('fiona._drivers', ['fiona/_drivers.pyx'], **ext_options),
+        Extension('fiona._err', ['fiona/_err.pyx'], **ext_options),
+        Extension('fiona.ogrext', ['fiona/ogrext.pyx'], **ext_options)])
+# If there's no manifest template, as in an sdist, we just specify .c files.
+else:
+    ext_modules = [
+        Extension('fiona._transform', ['fiona/_transform.cpp'], **ext_options),
+        Extension('fiona._geometry', ['fiona/_geometry.c'], **ext_options),
+        Extension('fiona._drivers', ['fiona/_drivers.c'], **ext_options),
+        Extension('fiona._err', ['fiona/_err.c'], **ext_options),
+        Extension('fiona.ogrext', ['fiona/ogrext.c'], **ext_options)]
+
+requirements = ['click', 'six']
+if sys.version_info < (2, 7):
+    requirements.append('argparse')
+    requirements.append('ordereddict')
+
+setup(
+    metadata_version='1.2',
+    name='Fiona',
+    version=version,
+    requires_python = '>=2.6',
+    requires_external = 'GDAL (>=1.8)',
+    description="Fiona reads and writes spatial data files",
+    license='BSD',
+    keywords='gis vector feature data',
+    author='Sean Gillies',
+    author_email='sean.gillies at gmail.com',
+    maintainer='Sean Gillies',
+    maintainer_email='sean.gillies at gmail.com',
+    url='http://github.com/Toblerity/Fiona',
+    long_description=readme + "\n" + changes + "\n" + credits,
+    package_dir={'': '.'},
+    packages=['fiona', 'fiona.fio'],
+    entry_points='''
+        [console_scripts]
+        fio=fiona.fio.fio:cli
+        ''',
+    install_requires=requirements,
+    tests_require=['nose'],
+    test_suite='nose.collector',
+    ext_modules=ext_modules,
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Intended Audience :: Developers',
+        'Intended Audience :: Science/Research',
+        'License :: OSI Approved :: BSD License',
+        'Operating System :: OS Independent',
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 3',
+        'Topic :: Scientific/Engineering :: GIS',
+    ],
+)
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..0e6c3a8
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1,39 @@
+import os
+
+DATADIR = os.path.abspath('docs/data')
+FILES = ['test_uk.shp', 'test_uk.shx', 'test_uk.dbf', 'test_uk.prj']
+
+def create_zipfile(zipfilename):
+    import zipfile
+    with zipfile.ZipFile(zipfilename, 'w') as zip:
+        for filename in FILES:
+            zip.write(os.path.join(DATADIR, filename), filename)
+
+def create_tarfile(tarfilename):
+    import tarfile
+    with tarfile.open(tarfilename, 'w') as tar:
+        for filename in FILES:
+            tar.add(os.path.join(DATADIR, filename), arcname='testing/%s' % filename)
+
+def create_jsonfile(jsonfilename):
+    import json
+    import fiona
+    with fiona.open(os.path.join(DATADIR, FILES[0]), 'r') as source:
+        features = [feat for feat in source]
+    my_layer = {'type': 'FeatureCollection',
+                'features': features}
+    with open(jsonfilename, 'w') as f:
+        f.write(json.dumps(my_layer))
+
+def setup():
+    """Setup function for nosetests to create test files if they do not exist
+    """
+    zipfile = os.path.join(DATADIR, 'test_uk.zip')
+    tarfile = os.path.join(DATADIR, 'test_uk.tar')
+    jsonfile = os.path.join(DATADIR, 'test_uk.json')
+    if not os.path.exists(zipfile):
+        create_zipfile(zipfile)
+    if not os.path.exists(tarfile):
+        create_tarfile(tarfile)
+    if not os.path.exists(jsonfile):
+        create_jsonfile(jsonfile)
diff --git a/tests/test_bounds.py b/tests/test_bounds.py
new file mode 100644
index 0000000..9261c0d
--- /dev/null
+++ b/tests/test_bounds.py
@@ -0,0 +1,15 @@
+import fiona
+
+def test_bounds():
+    with fiona.open("docs/data/test_uk.shp") as src:
+        f = next(src)
+        assert tuple(round(v, 6) for v in fiona.bounds(f)) == (
+                                                         0.735,
+                                                         51.357216,
+                                                         0.947778,
+                                                         51.444717)
+        assert tuple(round(v, 6) for v in fiona.bounds(f['geometry'])) == (
+                                                         0.735,
+                                                         51.357216,
+                                                         0.947778,
+                                                         51.444717)
diff --git a/tests/test_cli.py b/tests/test_cli.py
new file mode 100644
index 0000000..682cd61
--- /dev/null
+++ b/tests/test_cli.py
@@ -0,0 +1,80 @@
+import json
+import subprocess
+
+
+def test_cli_info_json():
+    result = subprocess.check_output(
+        'fio info docs/data/test_uk.shp',
+        shell=True)
+    text = result.decode('utf-8').strip()
+    assert json.loads(text)['count'] == 48
+
+
+def test_cli_info_count():
+    result = subprocess.check_output(
+        'fio info docs/data/test_uk.shp --count',
+        shell=True)
+    assert result.decode('utf-8').strip() == '48'
+
+
+def test_cli_info_bounds():
+    result = subprocess.check_output(
+        'fio info docs/data/test_uk.shp --bounds',
+        shell=True)
+    assert result.decode('utf-8').strip() == (
+        '-8.621389 49.911659 1.749444 60.844444')
+
+
+def test_cli_cat():
+    result = subprocess.check_output(
+        'fio cat docs/data/test_uk.shp docs/data/test_uk.shp',
+        shell=True)
+    records = result.decode('utf-8').strip().split('\n')
+    assert len(records) == 96
+    for record in records:
+        assert json.loads(record.strip())['type'] == 'Feature'
+
+
+def test_cli_cat_rs():
+    result = subprocess.check_output(
+        'fio cat docs/data/test_uk.shp docs/data/test_uk.shp '
+        '--indent 2 --x-json-seq-rs',
+        shell=True)
+    texts = result.decode('utf-8').split(u'\x1e')
+    assert len(texts) == 97
+    assert texts[0] == ''
+    for text in texts:
+        if not text:
+            continue
+        assert json.loads(text)['type'] == 'Feature'
+
+
+def test_cli_collect():
+    feature = {
+        'type': 'Feature',
+        'properties': {},
+        'geometry': {
+            'type': 'Point',
+            'coordinates': [0.0, 0.0] }}
+    result = subprocess.check_output(
+        "echo '%s' | fio collect" % json.dumps(feature),
+        shell=True)
+    collection = json.loads(result.decode('utf-8'))
+    assert len(collection['features']) == 1
+    assert collection['features'][0] == feature
+
+
+def test_cli_collect_rs():
+    feature = {
+        'type': 'Feature',
+        'properties': {},
+        'geometry': {
+            'type': 'Point',
+            'coordinates': [0.0, 0.0] }}
+    result = subprocess.check_output(
+        "printf '\036%s\n\036%s' | fio collect" % (
+            json.dumps(feature, indent=2), json.dumps(feature, indent=2)),
+        shell=True)
+    collection = json.loads(result.decode('utf-8'))
+    assert len(collection['features']) == 2
+    assert collection['features'][0] == feature
diff --git a/tests/test_collection.py b/tests/test_collection.py
new file mode 100644
index 0000000..3fff4d0
--- /dev/null
+++ b/tests/test_collection.py
@@ -0,0 +1,584 @@
+# Testing collections and workspaces
+
+import logging
+import os
+import shutil
+import sys
+import subprocess
+import unittest
+import tempfile
+import datetime
+
+import fiona
+from fiona.collection import Collection, supported_drivers
+from fiona.errors import FionaValueError, DriverError, SchemaError, CRSError
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+TEMPDIR = tempfile.gettempdir()
+
+class SupportedDriversTest(unittest.TestCase):
+    def test_shapefile(self):
+        self.failUnless("ESRI Shapefile" in supported_drivers)
+        self.failUnlessEqual(
+            set(supported_drivers["ESRI Shapefile"]), set("raw") )
+    def test_map(self):
+        self.failUnless("MapInfo File" in supported_drivers)
+        self.failUnlessEqual(
+            set(supported_drivers["MapInfo File"]), set("raw") )
+
+class CollectionArgsTest(unittest.TestCase):
+    def test_path(self):
+        self.assertRaises(TypeError, Collection, (0))
+    def test_mode(self):
+        self.assertRaises(TypeError, Collection, ("foo"), mode=0)
+    def test_driver(self):
+        self.assertRaises(TypeError, Collection, ("foo"), mode='w', driver=1)
+    def test_schema(self):
+        self.assertRaises(
+            TypeError, Collection, ("foo"), mode='w', 
+            driver="ESRI Shapefile", schema=1)
+    def test_crs(self):
+        self.assertRaises(
+            TypeError, Collection, ("foo"), mode='w', 
+            driver="ESRI Shapefile", schema=0, crs=1)
+    def test_encoding(self):
+        self.assertRaises(
+            TypeError, Collection, ("foo"), mode='r', 
+            encoding=1)
+    def test_layer(self):
+        self.assertRaises(
+            TypeError, Collection, ("foo"), mode='r', 
+            layer=0.5)
+    def test_vsi(self):
+        self.assertRaises(
+            TypeError, Collection, ("foo"), mode='r', 
+            vsi='git')
+    def test_archive(self):
+        self.assertRaises(
+            TypeError, Collection, ("foo"), mode='r', 
+            archive=1)
+    def test_write_numeric_layer(self):
+        self.assertRaises(ValueError, Collection, ("foo"), mode='w', layer=1)
+    def test_write_geojson_layer(self):
+        self.assertRaises(ValueError, Collection, ("foo"), mode='w', driver='GeoJSON', layer='foo')
+    def test_append_geojson(self):
+        self.assertRaises(ValueError, Collection, ("foo"), mode='w', driver='ARCGEN')
+
+class OpenExceptionTest(unittest.TestCase):
+    def test_no_archive(self):
+        self.assertRaises(IOError, fiona.open, ("/"), mode='r', vfs="zip:///foo.zip")
+
+class ReadingTest(unittest.TestCase):
+    
+    def setUp(self):
+        self.c = fiona.open("docs/data/test_uk.shp", "r")
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_open_repr(self):
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<open Collection 'docs/data/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_closed_repr(self):
+        self.c.close()
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<closed Collection 'docs/data/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_path(self):
+        self.failUnlessEqual(self.c.path, 'docs/data/test_uk.shp')
+
+    def test_name(self):
+        self.failUnlessEqual(self.c.name, 'test_uk')
+    
+    def test_mode(self):
+        self.failUnlessEqual(self.c.mode, 'r')
+
+    def test_collection(self):
+        self.failUnlessEqual(self.c.encoding, 'iso-8859-1')
+
+    def test_iter(self):
+        self.failUnless(iter(self.c))
+    
+    def test_closed_no_iter(self):
+        self.c.close()
+        self.assertRaises(ValueError, iter, self.c)
+
+    def test_len(self):
+        self.failUnlessEqual(len(self.c), 48)
+    
+    def test_closed_len(self):
+        # Len is lazy, it's never computed in this case. TODO?
+        self.c.close()
+        self.failUnlessEqual(len(self.c), 0)
+
+    def test_len_closed_len(self):
+        # Lazy len is computed in this case and sticks.
+        len(self.c)
+        self.c.close()
+        self.failUnlessEqual(len(self.c), 48)
+    
+    def test_driver(self):
+        self.failUnlessEqual(self.c.driver, "ESRI Shapefile")
+    
+    def test_closed_driver(self):
+        self.c.close()
+        self.failUnlessEqual(self.c.driver, None)
+
+    def test_driver_closed_driver(self):
+        self.c.driver
+        self.c.close()
+        self.failUnlessEqual(self.c.driver, "ESRI Shapefile")
+    
+    def test_schema(self):
+        s = self.c.schema['properties']
+        self.failUnlessEqual(s['CAT'], "float:16")
+        self.failUnlessEqual(s['FIPS_CNTRY'], "str:80")
+
+    def test_closed_schema(self):
+        # Schema is lazy too, never computed in this case. TODO?
+        self.c.close()
+        self.failUnlessEqual(self.c.schema, None)
+
+    def test_schema_closed_schema(self):
+        self.c.schema
+        self.c.close()
+        self.failUnlessEqual(
+            sorted(self.c.schema.keys()),
+            ['geometry', 'properties'])
+
+    def test_crs(self):
+        crs = self.c.crs
+        self.failUnlessEqual(crs['init'], 'epsg:4326')
+
+    def test_closed_crs(self):
+        # Crs is lazy too, never computed in this case. TODO?
+        self.c.close()
+        self.failUnlessEqual(self.c.crs, None)
+
+    def test_crs_closed_crs(self):
+        self.c.crs
+        self.c.close()
+        self.failUnlessEqual(
+            sorted(self.c.crs.keys()),
+            ['init'])
+
+    def test_meta(self):
+        self.failUnlessEqual(
+            sorted(self.c.meta.keys()), 
+            ['crs', 'driver', 'schema'])
+
+    def test_bounds(self):
+        self.failUnlessAlmostEqual(self.c.bounds[0], -8.621389, 6)
+        self.failUnlessAlmostEqual(self.c.bounds[1], 49.911659, 6)
+        self.failUnlessAlmostEqual(self.c.bounds[2], 1.749444, 6)
+        self.failUnlessAlmostEqual(self.c.bounds[3], 60.844444, 6)
+
+    def test_context(self):
+        with fiona.open("docs/data/test_uk.shp", "r") as c:
+            self.failUnlessEqual(c.name, 'test_uk')
+            self.failUnlessEqual(len(c), 48)
+        self.failUnlessEqual(c.closed, True)
+
+    def test_iter_one(self):
+        itr = iter(self.c)
+        f = next(itr)
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+
+    def test_iter_list(self):
+        f = list(self.c)[0]
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+
+    def test_re_iter_list(self):
+        f = list(self.c)[0] # Run through iterator
+        f = list(self.c)[0] # Run through a new, reset iterator
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+
+    def test_getitem_one(self):
+        f = self.c[0]
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+
+    def test_getitem_iter_combo(self):
+        i = iter(self.c)
+        f = next(i)
+        f = next(i)
+        self.failUnlessEqual(f['id'], "1")
+        f = self.c[0]
+        self.failUnlessEqual(f['id'], "0")
+        f = next(i)
+        self.failUnlessEqual(f['id'], "2")
+
+    def test_no_write(self):
+        self.assertRaises(IOError, self.c.write, {})
+
+    def test_iter_items_list(self):
+        i, f = list(self.c.items())[0]
+        self.failUnlessEqual(i, 0)
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+
+    def test_iter_keys_list(self):
+        i = list(self.c.keys())[0]
+        self.failUnlessEqual(i, 0)
+
+    def test_in_keys(self):
+        self.failUnless(0 in self.c.keys())
+        self.failUnless(0 in self.c)
+
+
+class FilterReadingTest(unittest.TestCase):
+    def setUp(self):
+        self.c = fiona.open("docs/data/test_uk.shp", "r")
+    def tearDown(self):
+        self.c.close()
+    def test_filter_1(self):
+        results = list(self.c.filter(bbox=(-15.0, 35.0, 15.0, 65.0)))
+        self.failUnlessEqual(len(results), 48)
+        f = results[0]
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+    def test_filter_reset(self):
+        results = list(self.c.filter(bbox=(-15.0, 55.0, 15.0, 65.0)))
+        self.failUnlessEqual(len(results), 41)
+        results = list(self.c.filter())
+        self.failUnlessEqual(len(results), 48)
+        
+    def test_filter_mask(self):
+        mask = {'type': 'Polygon', 'coordinates': (((-2.0, 60.0), (-2.0, 60.0), (0.0, 61.0), (0.0, 60.0), (-2.0, 60.0)),)}
+        results = list(self.c.filter(mask=mask))
+        self.failUnlessEqual(len(results), 1)
+
+class UnsupportedDriverTest(unittest.TestCase):
+    
+    def test_immediate_fail_driver(self):
+        schema = {
+            'geometry': 'Point', 
+            'properties': {'label': 'str', u'verit\xe9': 'int'} }
+        self.assertRaises(
+            DriverError, 
+            fiona.open, os.path.join(TEMPDIR, "foo"), "w", "Bogus", schema=schema)
+
+class GenericWritingTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        schema = {
+            'geometry': 'Point', 
+            'properties': [('label', 'str'), (u'verit\xe9', 'int')] }
+        self.c = fiona.open(
+                os.path.join(self.tempdir, "test-no-iter.shp"),
+                "w", 
+                "ESRI Shapefile", 
+                schema=schema,
+                encoding='Windows-1252')
+
+    def tearDown(self):
+        self.c.close()
+        shutil.rmtree(self.tempdir)
+
+    def test_encoding(self):
+        self.assertEquals(self.c.encoding, 'Windows-1252')
+
+    def test_no_iter(self):
+        self.assertRaises(IOError, iter, self.c)
+
+    def test_no_filter(self):
+        self.assertRaises(IOError, self.c.filter)
+
+class PointWritingTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.filename = os.path.join(self.tempdir, "point_writing_test.shp")
+        self.sink = fiona.open(
+            self.filename,
+            "w",
+            driver="ESRI Shapefile",
+            schema={
+                'geometry': 'Point', 
+                'properties': [('title', 'str'), ('date', 'date')]},
+            crs='epsg:4326',
+            encoding='utf-8')
+
+    def tearDown(self):
+        self.sink.close()
+        shutil.rmtree(self.tempdir)
+
+    def test_cpg(self):
+        """Requires GDAL 1.9"""
+        self.sink.close()
+        self.failUnless(open(os.path.join(self.tempdir, "point_writing_test.cpg")).readline() == 'UTF-8')
+
+    def test_write_one(self):
+        self.failUnlessEqual(len(self.sink), 0)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.0, 0.0, 0.0))
+        f = {
+            'geometry': {'type': 'Point', 'coordinates': (0.0, 0.1)},
+            'properties': {'title': 'point one', 'date': "2012-01-29"}}
+        self.sink.writerecords([f])
+        self.failUnlessEqual(len(self.sink), 1)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.1, 0.0, 0.1))
+        self.sink.close()
+        info = subprocess.check_output(
+            ["ogrinfo", self.filename, "point_writing_test"])
+        self.assert_(
+            'date (Date) = 2012/01/29' in info.decode('utf-8'),
+            info)
+
+    def test_write_two(self):
+        self.failUnlessEqual(len(self.sink), 0)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.0, 0.0, 0.0))
+        f1 = {
+            'geometry': {'type': 'Point', 'coordinates': (0.0, 0.1)},
+            'properties': {'title': 'point one', 'date': "2012-01-29"}}
+        f2 = {
+            'geometry': {'type': 'Point', 'coordinates': (0.0, -0.1)},
+            'properties': {'title': 'point two', 'date': "2012-01-29"}}
+        self.sink.writerecords([f1, f2])
+        self.failUnlessEqual(len(self.sink), 2)
+        self.failUnlessEqual(self.sink.bounds, (0.0, -0.1, 0.0, 0.1))
+
+    def test_write_one_null_geom(self):
+        self.failUnlessEqual(len(self.sink), 0)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.0, 0.0, 0.0))
+        f = {
+            'geometry': None,
+            'properties': {'title': 'point one', 'date': "2012-01-29"}}
+        self.sink.writerecords([f])
+        self.failUnlessEqual(len(self.sink), 1)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.0, 0.0, 0.0))
+
+    def test_validate_record(self):
+        fvalid = {
+            'geometry': {'type': 'Point', 'coordinates': (0.0, 0.1)},
+            'properties': {'title': 'point one', 'date': "2012-01-29"}}
+        finvalid = {
+            'geometry': {'type': 'Point', 'coordinates': (0.0, -0.1)},
+            'properties': {'not-a-title': 'point two', 'date': "2012-01-29"}}
+        self.assertTrue(self.sink.validate_record(fvalid))
+        self.assertFalse(self.sink.validate_record(finvalid))
+
+class LineWritingTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.sink = fiona.open(
+            os.path.join(self.tempdir, "line_writing_test.shp"),
+            "w",
+            driver="ESRI Shapefile",
+            schema={
+                'geometry': 'LineString', 
+                'properties': [('title', 'str'), ('date', 'date')]},
+            crs={'init': "epsg:4326", 'no_defs': True})
+
+    def tearDown(self):
+        self.sink.close()
+        shutil.rmtree(self.tempdir)
+    
+    def test_write_one(self):
+        self.failUnlessEqual(len(self.sink), 0)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.0, 0.0, 0.0))
+        f = {
+            'geometry': {'type': 'LineString', 
+                         'coordinates': [(0.0, 0.1), (0.0, 0.2)]},
+            'properties': {'title': 'line one', 'date': "2012-01-29"}}
+        self.sink.writerecords([f])
+        self.failUnlessEqual(len(self.sink), 1)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.1, 0.0, 0.2))
+
+    def test_write_two(self):
+        self.failUnlessEqual(len(self.sink), 0)
+        self.failUnlessEqual(self.sink.bounds, (0.0, 0.0, 0.0, 0.0))
+        f1 = {
+            'geometry': {'type': 'LineString', 
+                         'coordinates': [(0.0, 0.1), (0.0, 0.2)]},
+            'properties': {'title': 'line one', 'date': "2012-01-29"}}
+        f2 = {
+            'geometry': {'type': 'MultiLineString', 
+                         'coordinates': [
+                            [(0.0, 0.0), (0.0, -0.1)], 
+                            [(0.0, -0.1), (0.0, -0.2)] ]},
+            'properties': {'title': 'line two', 'date': "2012-01-29"}}
+        self.sink.writerecords([f1, f2])
+        self.failUnlessEqual(len(self.sink), 2)
+        self.failUnlessEqual(self.sink.bounds, (0.0, -0.2, 0.0, 0.2))
+
+class PointAppendTest(unittest.TestCase):
+    # Tests 3D shapefiles too
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        with fiona.open("docs/data/test_uk.shp", "r") as input:
+            output_schema = input.schema.copy()
+            output_schema['geometry'] = '3D Point'
+            with fiona.open(
+                    os.path.join(self.tempdir, "test_append_point.shp"),
+                    "w", crs=None, driver="ESRI Shapefile", schema=output_schema
+                    ) as output:
+                for f in input.filter(bbox=(-5.0, 55.0, 0.0, 60.0)):
+                    f['geometry'] = {
+                        'type': 'Point',
+                        'coordinates': f['geometry']['coordinates'][0][0] }
+                    output.write(f)
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_append_point(self):
+        with fiona.open(os.path.join(self.tempdir, "test_append_point.shp"), "a") as c:
+            self.assertEqual(c.schema['geometry'], '3D Point')
+            c.write({'geometry': {'type': 'Point', 'coordinates': (0.0, 45.0)},
+                     'properties': { 'FIPS_CNTRY': 'UK', 
+                                     'AREA': 0.0, 
+                                     'CAT': 1.0, 
+                                     'POP_CNTRY': 0, 
+                                     'CNTRY_NAME': u'Foo'} })
+            self.assertEqual(len(c), 8)
+
+class LineAppendTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        with fiona.open(
+                os.path.join(self.tempdir, "test_append_line.shp"),
+                "w",
+                driver="ESRI Shapefile",
+                schema={
+                    'geometry': 'MultiLineString', 
+                    'properties': {'title': 'str', 'date': 'date'}},
+                crs={'init': "epsg:4326", 'no_defs': True}) as output:
+            f = {'geometry': {'type': 'MultiLineString', 
+                              'coordinates': [[(0.0, 0.1), (0.0, 0.2)]]},
+                'properties': {'title': 'line one', 'date': "2012-01-29"}}
+            output.writerecords([f])
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_append_line(self):
+        with fiona.open(os.path.join(self.tempdir, "test_append_line.shp"), "a") as c:
+            self.assertEqual(c.schema['geometry'], 'LineString')
+            f1 = {
+                'geometry': {'type': 'LineString', 
+                             'coordinates': [(0.0, 0.1), (0.0, 0.2)]},
+                'properties': {'title': 'line one', 'date': "2012-01-29"}}
+            f2 = {
+                'geometry': {'type': 'MultiLineString', 
+                             'coordinates': [
+                                [(0.0, 0.0), (0.0, -0.1)], 
+                                [(0.0, -0.1), (0.0, -0.2)] ]},
+                'properties': {'title': 'line two', 'date': "2012-01-29"}}
+            c.writerecords([f1, f2])
+            self.failUnlessEqual(len(c), 3)
+            self.failUnlessEqual(c.bounds, (0.0, -0.2, 0.0, 0.2))
+
+class ShapefileFieldWidthTest(unittest.TestCase):
+    
+    def test_text(self):
+        self.tempdir = tempfile.mkdtemp()
+        with fiona.open(os.path.join(self.tempdir, "textfield.shp"), "w",
+                driver="ESRI Shapefile",
+                schema={'geometry': 'Point', 'properties': {'text': 'str:254'}}
+                ) as c:
+            c.write(
+                {'geometry': {'type': 'Point', 'coordinates': (0.0, 45.0)},
+                 'properties': { 'text': 'a' * 254 }})
+        c = fiona.open(os.path.join(self.tempdir, "textfield.shp"), "r")
+        self.failUnlessEqual(c.schema['properties']['text'], 'str:254')
+        f = next(iter(c))
+        self.failUnlessEqual(f['properties']['text'], 'a' * 254)
+        c.close()
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+class CollectionTest(unittest.TestCase):
+
+    def test_invalid_mode(self):
+        self.assertRaises(ValueError, fiona.open, os.path.join(TEMPDIR, "bogus.shp"), "r+")
+
+    def test_w_args(self):
+        self.assertRaises(FionaValueError, fiona.open, os.path.join(TEMPDIR, "test-no-iter.shp"), "w")
+        self.assertRaises(
+            FionaValueError, fiona.open, os.path.join(TEMPDIR, "test-no-iter.shp"), "w", "Driver")
+
+    def test_no_path(self):
+        self.assertRaises(IOError, fiona.open, "no-path.shp", "a")
+
+    def test_no_read_conn_str(self):
+        self.assertRaises(IOError, fiona.open, "PG:dbname=databasename", "r")
+
+    def test_no_read_directory(self):
+        self.assertRaises(ValueError, fiona.open, "/dev/null", "r")
+
+class GeoJSONCRSWritingTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.filename = os.path.join(self.tempdir, "crs_writing_test.json")
+        self.sink = fiona.open(
+            self.filename,
+            "w",
+            driver="GeoJSON",
+            schema={
+                'geometry': 'Point', 
+                'properties': [('title', 'str'), ('date', 'date')]},
+            crs={'a': 6370997, 'lon_0': -100, 'y_0': 0, 'no_defs': True, 'proj': 'laea', 'x_0': 0, 'units': 'm', 'b': 6370997, 'lat_0': 45})
+
+    def tearDown(self):
+        self.sink.close()
+        shutil.rmtree(self.tempdir)
+
+    def test_crs(self):
+        """OGR's GeoJSON driver only deals in WGS84"""
+        self.sink.close()
+        info = subprocess.check_output(
+            ["ogrinfo", self.filename, "OGRGeoJSON"])
+        self.assert_(
+            'GEOGCS["WGS 84' in info.decode('utf-8'),
+            info)
+
+class DateTimeTest(unittest.TestCase):
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+
+    def test_date(self):
+        self.sink = fiona.open(
+            os.path.join(self.tempdir, "date_test.shp"),
+            "w",
+            driver="ESRI Shapefile",
+            schema={
+                'geometry': 'Point',
+                'properties': [('id', 'int'), ('date', 'date')]},
+            crs={'init': "epsg:4326", 'no_defs': True})
+
+        recs = [{
+            'geometry': {'type': 'Point',
+                         'coordinates': (7.0, 50.0)},
+            'properties': {'id': 1, 'date': '2013-02-25'}
+        }, {
+            'geometry': {'type': 'Point',
+                         'coordinates': (7.0, 50.2)},
+            'properties': {'id': 1, 'date': datetime.date(2014, 2, 3)}
+        }]
+        self.sink.writerecords(recs)
+        self.sink.close()
+        self.failUnlessEqual(len(self.sink), 2)
+
+        c = fiona.open(os.path.join(self.tempdir, "date_test.shp"), "r")
+        self.failUnlessEqual(len(c), 2)
+
+        rf1, rf2 = list(c)
+        self.failUnlessEqual(rf1['properties']['date'], '2013-02-25')
+        self.failUnlessEqual(rf2['properties']['date'], '2014-02-03')
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
diff --git a/tests/test_crs.py b/tests/test_crs.py
new file mode 100644
index 0000000..6b65829
--- /dev/null
+++ b/tests/test_crs.py
@@ -0,0 +1,80 @@
+
+from fiona import crs
+
+def test_proj_keys():
+    assert len(crs.all_proj_keys) == 86
+    assert 'init' in crs.all_proj_keys
+    assert 'proj' in crs.all_proj_keys
+    assert 'no_mayo' in crs.all_proj_keys
+
+def test_from_string():
+    # A PROJ.4 string with extra whitespace.
+    val = crs.from_string(
+        " +proj=longlat +ellps=WGS84 +datum=WGS84  +no_defs +foo  " )
+    assert len(val.items()) == 4
+    assert val['proj'] == 'longlat'
+    assert val['ellps'] == 'WGS84'
+    assert val['datum'] == 'WGS84'
+    assert val['no_defs'] == True
+    assert 'foo' not in val
+
+def test_from_string_utm():
+    # A PROJ.4 string with extra whitespace and integer UTM zone.
+    val = crs.from_string(
+        " +proj=utm +zone=13 +ellps=WGS84 +foo  " )
+    assert len(val.items()) == 3
+    assert val['proj'] == 'utm'
+    assert val['ellps'] == 'WGS84'
+    assert val['zone'] == 13
+    assert 'foo' not in val
+
+def test_to_string():
+    # Make a string from a mapping with a few bogus items
+    val = {
+        'proj': 'longlat', 'ellps': 'WGS84', 'datum': 'WGS84', 
+        'no_defs': True, 'foo': True, 'axis': False, 'belgium': [1,2] }
+    assert crs.to_string(
+        val) == "+datum=WGS84 +ellps=WGS84 +no_defs +proj=longlat"
+
+def test_to_string_utm():
+    # Make a string from a mapping with a few bogus items
+    val = {
+        'proj': 'utm', 'ellps': 'WGS84', 'zone': 13, 
+        'no_defs': True, 'foo': True, 'axis': False, 'belgium': [1,2] }
+    assert crs.to_string(
+        val) == "+ellps=WGS84 +no_defs +proj=utm +zone=13"
+
+def test_to_string_epsg():
+    val = {'init': 'epsg:4326', 'no_defs': True}
+    assert crs.to_string(val) == "+init=epsg:4326 +no_defs"
+       
+def test_to_string_zeroval():
+    # Make a string with some 0 values (e.g. esri:102017)
+    val = {'proj': 'laea', 'lat_0': 90, 'lon_0': 0, 'x_0': 0, 'y_0': 0, 
+           'ellps': 'WGS84', 'datum': 'WGS84', 'units': 'm', 'no_defs': True}
+    assert crs.to_string(val) == (
+        "+datum=WGS84 +ellps=WGS84 +lat_0=90 +lon_0=0 +no_defs +proj=laea "
+        "+units=m +x_0=0 +y_0=0")
+
+def test_from_epsg():
+    val = crs.from_epsg(4326)
+    assert val['init'] == "epsg:4326"
+    assert val['no_defs'] == True
+
+def test_from_epsg_neg():
+    try:
+        val = crs.from_epsg(-1)
+    except ValueError:
+        pass
+    except:
+        raise
+
+def test_to_string_unicode():
+    # See issue #83.
+    val = crs.to_string({
+        u'units': u'm', 
+        u'no_defs': True, 
+        u'datum': u'NAD83', 
+        u'proj': u'utm', 
+        u'zone': 16})
+    assert 'NAD83' in val
diff --git a/tests/test_drivers.py b/tests/test_drivers.py
new file mode 100644
index 0000000..a8621aa
--- /dev/null
+++ b/tests/test_drivers.py
@@ -0,0 +1,30 @@
+
+import logging
+import os.path
+import shutil
+import sys
+import tempfile
+
+import fiona
+
+def test_options(tmpdir=None):
+    """Test that setting CPL_DEBUG=ON works"""
+    if tmpdir is None:
+        tempdir = tempfile.mkdtemp()
+        logfile = os.path.join(tempdir, 'example.log')
+    else:
+        logfile = str(tmpdir.join('example.log'))
+    logger = logging.getLogger('Fiona')
+    logger.setLevel(logging.DEBUG)
+    fh = logging.FileHandler(logfile)
+    fh.setLevel(logging.DEBUG)
+    logger.addHandler(fh)
+
+    with fiona.drivers(CPL_DEBUG=True):
+        c = fiona.open("docs/data/test_uk.shp")
+        c.close()
+        log = open(logfile).read()
+        assert "Option CPL_DEBUG" in log
+
+    if tempdir and tmpdir is None:
+        shutil.rmtree(tempdir)
diff --git a/tests/test_feature.py b/tests/test_feature.py
new file mode 100644
index 0000000..cca366a
--- /dev/null
+++ b/tests/test_feature.py
@@ -0,0 +1,112 @@
+# testing features, to be called by nosetests
+
+import logging
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+from fiona import collection
+from fiona.collection import Collection
+from fiona.ogrext import featureRT
+
+#logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+class PointRoundTripTest(unittest.TestCase):
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        schema = {'geometry': 'Point', 'properties': {'title': 'str'}}
+        self.c = Collection(os.path.join(self.tempdir, "foo.shp"),
+                            "w", driver="ESRI Shapefile", schema=schema)
+    def tearDown(self):
+        self.c.close()
+        shutil.rmtree(self.tempdir)
+    def test_geometry(self):
+        f = { 'id': '1', 
+              'geometry': {'type': 'Point', 'coordinates': (0.0, 0.0)},
+              'properties': {'title': u'foo'} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(
+            sorted(g['geometry'].items()),
+            [('coordinates', (0.0, 0.0)), ('type', 'Point')])
+    def test_properties(self):
+        f = { 'id': '1', 
+              'geometry': {'type': 'Point', 'coordinates': (0.0, 0.0)},
+              'properties': {'title': u'foo'} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(g['properties']['title'], 'foo')
+    def test_none_property(self):
+        f = { 'id': '1',
+              'geometry': {'type': 'Point', 'coordinates': (0.0, 0.0)},
+              'properties': {'title': None} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(g['properties']['title'], None)
+
+class LineStringRoundTripTest(unittest.TestCase):
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        schema = {'geometry': 'LineString', 'properties': {'title': 'str'}}
+        self.c = Collection(os.path.join(self.tempdir, "foo.shp"),
+                            "w", "ESRI Shapefile", schema=schema)
+    def tearDown(self):
+        self.c.close()
+        shutil.rmtree(self.tempdir)
+    def test_geometry(self):
+        f = { 'id': '1', 
+              'geometry': { 'type': 'LineString', 
+                            'coordinates': [(0.0, 0.0), (1.0, 1.0)] },
+              'properties': {'title': u'foo'} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(
+            sorted(g['geometry'].items()),
+            [('coordinates', [(0.0, 0.0), (1.0, 1.0)]), 
+             ('type', 'LineString')])
+    def test_properties(self):
+        f = { 'id': '1',
+              'geometry': {'type': 'Point', 'coordinates': (0.0, 0.0)},
+              'properties': {'title': u'foo'} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(g['properties']['title'], 'foo')
+
+class PolygonRoundTripTest(unittest.TestCase):
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        schema = {'geometry': 'Polygon', 'properties': {'title': 'str'}}
+        self.c = Collection(os.path.join(self.tempdir, "foo.shp"),
+                            "w", "ESRI Shapefile", schema=schema)
+    def tearDown(self):
+        self.c.close()
+        shutil.rmtree(self.tempdir)
+    def test_geometry(self):
+        f = { 'id': '1', 
+              'geometry': { 'type': 'Polygon', 
+                            'coordinates': 
+                                [[(0.0, 0.0), 
+                                  (0.0, 1.0), 
+                                  (1.0, 1.0), 
+                                  (1.0, 0.0), 
+                                  (0.0, 0.0)]] },
+              'properties': {'title': u'foo'} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(
+            sorted(g['geometry'].items()),
+            [('coordinates', [[(0.0, 0.0), 
+                                  (0.0, 1.0), 
+                                  (1.0, 1.0), 
+                                  (1.0, 0.0), 
+                                  (0.0, 0.0)]]), 
+             ('type', 'Polygon')])
+    def test_properties(self):
+        f = { 'id': '1', 
+              'geometry': { 'type': 'Polygon', 
+                            'coordinates': 
+                                [[(0.0, 0.0), 
+                                  (0.0, 1.0), 
+                                  (1.0, 1.0), 
+                                  (1.0, 0.0), 
+                                  (0.0, 0.0)]] },
+              'properties': {'title': u'foo'} }
+        g = featureRT(f, self.c)
+        self.failUnlessEqual(g['properties']['title'], 'foo')
+
diff --git a/tests/test_geojson.py b/tests/test_geojson.py
new file mode 100644
index 0000000..59454e4
--- /dev/null
+++ b/tests/test_geojson.py
@@ -0,0 +1,48 @@
+
+import logging
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+import fiona
+from fiona.collection import supported_drivers
+from fiona.errors import FionaValueError, DriverError, SchemaError, CRSError
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+
+class ReadingTest(unittest.TestCase):
+    
+    def setUp(self):
+        self.c = fiona.open('docs/data/test_uk.json', 'r')
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_json(self):
+        self.assertEquals(len(self.c), 48)
+
+class WritingTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_json(self):
+        path = os.path.join(self.tempdir, 'foo.json')
+        with fiona.open(path, 'w', 
+                driver='GeoJSON', 
+                schema={'geometry': 'Unknown', 'properties': [('title', 'str')]}) as c:
+            c.writerecords([{
+                'geometry': {'type': 'Point', 'coordinates': [0.0, 0.0]},
+                'properties': {'title': 'One'}}])
+            c.writerecords([{
+                'geometry': {'type': 'MultiPoint', 'coordinates': [[0.0, 0.0]]},
+                'properties': {'title': 'Two'}}])
+        with fiona.open(path) as c:
+            self.assertEquals(c.schema['geometry'], 'Unknown')
+            self.assertEquals(len(c), 2)
diff --git a/tests/test_geometry.py b/tests/test_geometry.py
new file mode 100644
index 0000000..79aa5ee
--- /dev/null
+++ b/tests/test_geometry.py
@@ -0,0 +1,191 @@
+# testing geometry extension, to be called by nosetests
+
+import logging
+import sys
+import unittest
+
+from fiona._geometry import GeomBuilder, geometryRT
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+def geometry_wkb(wkb):
+    return GeomBuilder().build_wkb(wkb)
+
+
+class OGRBuilderExceptionsTest(unittest.TestCase):
+    def test(self):
+        geom = {'type': "Bogus", 'coordinates': None}
+        self.assertRaises(ValueError, geometryRT, geom)
+
+# The round tripping tests are defined in this not to be run base class.
+#
+class RoundTripping(object):
+    """Derive type specific classes from this."""
+    def test_type(self):
+        self.failUnlessEqual(
+            geometryRT(self.geom)['type'], self.geom['type'])
+    def test_coordinates(self):
+        self.failUnlessEqual(
+            geometryRT(self.geom)['coordinates'], self.geom['coordinates'])
+
+# All these get their tests from the RoundTripping class.
+#
+class PointRoundTripTest(unittest.TestCase, RoundTripping):
+    def setUp(self):
+        self.geom = {'type': "Point", 'coordinates': (0.0, 0.0)}
+
+class LineStringRoundTripTest(unittest.TestCase, RoundTripping):
+    def setUp(self):
+        self.geom = {
+            'type': "LineString", 
+            'coordinates': [(0.0, 0.0), (1.0, 1.0)]}
+
+class PolygonRoundTripTest1(unittest.TestCase, RoundTripping):
+    """An explicitly closed polygon."""
+    def setUp(self):
+        self.geom = {
+            'type': "Polygon", 
+            'coordinates': [
+                [(0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)]]}
+
+class PolygonRoundTripTest2(unittest.TestCase, RoundTripping):
+    """An implicitly closed polygon."""
+    def setUp(self):
+        self.geom = {
+            'type': "Polygon", 
+            'coordinates': [
+                [(0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)]]}
+    def test_coordinates(self):
+        self.failUnlessEqual(
+            [geometryRT(self.geom)['coordinates'][0][:-1]], 
+            self.geom['coordinates'])
+
+class MultiPointRoundTripTest(unittest.TestCase, RoundTripping):
+    def setUp(self):
+        self.geom = {
+            'type': "MultiPoint", 'coordinates': [(0.0, 0.0), (1.0, 1.0)]}
+
+class MultiLineStringRoundTripTest(unittest.TestCase, RoundTripping):
+    def setUp(self):
+        self.geom = {
+            'type': "MultiLineString", 
+            'coordinates': [[(0.0, 0.0), (1.0, 1.0)]]}
+
+class MultiPolygonRoundTripTest1(unittest.TestCase, RoundTripping):
+    def setUp(self):
+        # This is an explicitly closed polygon.
+        self.geom = {
+            'type': "MultiPolygon", 
+            'coordinates': [[
+                [(0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0), (0.0, 0.0)]
+                ]]}
+
+class MultiPolygonRoundTripTest2(unittest.TestCase, RoundTripping):
+    def setUp(self):
+        # This is an implicitly closed polygon.
+        self.geom = {
+            'type': "MultiPolygon", 
+            'coordinates': 
+                [[[(0.0, 0.0), (0.0, 1.0), (1.0, 1.0), (1.0, 0.0)]]]}
+    def test_coordinates(self):
+        self.failUnlessEqual(
+            [[geometryRT(self.geom)['coordinates'][0][0][:-1]]], 
+            self.geom['coordinates'])
+
+class GeometryCollectionRoundTripTest(unittest.TestCase):
+    def setUp(self):
+        self.geom = {
+            'type': "GeometryCollection",
+            'geometries': [
+                {'type': "Point", 'coordinates': (0.0, 0.0)}, {
+                    'type': "LineString", 
+                    'coordinates': [(0.0, 0.0), (1.0, 1.0)]}]}
+    def test_len(self):
+        result = geometryRT(self.geom)
+        self.failUnlessEqual(len(result['geometries']), 2)
+    def test_type(self):
+        result = geometryRT(self.geom)
+        self.failUnlessEqual(
+            [g['type'] for g in result['geometries']], 
+            ['Point', 'LineString'])
+
+class PointTest(unittest.TestCase):
+    def test_point(self):
+        # Hex-encoded Point (0 0)
+        try:
+            wkb = bytes.fromhex("010100000000000000000000000000000000000000")
+        except:
+            wkb = "010100000000000000000000000000000000000000".decode('hex')
+        geom = geometry_wkb(wkb)
+        self.failUnlessEqual(geom['type'], "Point")
+        self.failUnlessEqual(geom['coordinates'], (0.0, 0.0))
+
+class LineStringTest(unittest.TestCase):
+    def test_line(self):
+        # Hex-encoded LineString (0 0, 1 1)
+        try:
+            wkb = bytes.fromhex("01020000000200000000000000000000000000000000000000000000000000f03f000000000000f03f")
+        except:
+            wkb = "01020000000200000000000000000000000000000000000000000000000000f03f000000000000f03f".decode('hex')
+        geom = geometry_wkb(wkb)
+        self.failUnlessEqual(geom['type'], "LineString")
+        self.failUnlessEqual(geom['coordinates'], [(0.0, 0.0), (1.0, 1.0)])
+
+class PolygonTest(unittest.TestCase):
+    def test_polygon(self):
+        # 1 x 1 box (0, 0, 1, 1)
+        try:
+            wkb = bytes.fromhex("01030000000100000005000000000000000000f03f0000000000000000000000000000f03f000000000000f03f0000000000000000000000000000f03f00000000000000000000000000000000000000000000f03f0000000000000000")
+        except:
+            wkb = "01030000000100000005000000000000000000f03f0000000000000000000000000000f03f000000000000f03f0000000000000000000000000000f03f00000000000000000000000000000000000000000000f03f0000000000000000".decode('hex')
+        geom = geometry_wkb(wkb)
+        self.failUnlessEqual(geom['type'], "Polygon")
+        self.failUnlessEqual(len(geom['coordinates']), 1)
+        self.failUnlessEqual(len(geom['coordinates'][0]), 5)
+        x, y = zip(*geom['coordinates'][0])
+        self.failUnlessEqual(min(x), 0.0)
+        self.failUnlessEqual(min(y), 0.0)
+        self.failUnlessEqual(max(x), 1.0)
+        self.failUnlessEqual(max(y), 1.0)
+
+class MultiPointTest(unittest.TestCase):
+    def test_multipoint(self):
+        try:
+            wkb = bytes.fromhex("0104000000020000000101000000000000000000000000000000000000000101000000000000000000f03f000000000000f03f")
+        except:
+            wkb = "0104000000020000000101000000000000000000000000000000000000000101000000000000000000f03f000000000000f03f".decode('hex')
+        geom = geometry_wkb(wkb)
+        self.failUnlessEqual(geom['type'], "MultiPoint")
+        self.failUnlessEqual(geom['coordinates'], [(0.0, 0.0), (1.0, 1.0)])
+
+class MultiLineStringTest(unittest.TestCase):
+    def test_multilinestring(self):
+        # Hex-encoded LineString (0 0, 1 1)
+        try:
+            wkb = bytes.fromhex("01050000000100000001020000000200000000000000000000000000000000000000000000000000f03f000000000000f03f")
+        except:
+            wkb = "01050000000100000001020000000200000000000000000000000000000000000000000000000000f03f000000000000f03f".decode('hex')
+        geom = geometry_wkb(wkb)
+        self.failUnlessEqual(geom['type'], "MultiLineString")
+        self.failUnlessEqual(len(geom['coordinates']), 1)
+        self.failUnlessEqual(len(geom['coordinates'][0]), 2)
+        self.failUnlessEqual(geom['coordinates'][0], [(0.0, 0.0), (1.0, 1.0)])
+
+class MultiPolygonTest(unittest.TestCase):
+    def test_multipolygon(self):
+        # [1 x 1 box (0, 0, 1, 1)]
+        try:
+            wkb = bytes.fromhex("01060000000100000001030000000100000005000000000000000000f03f0000000000000000000000000000f03f000000000000f03f0000000000000000000000000000f03f00000000000000000000000000000000000000000000f03f0000000000000000")
+        except:
+            wkb = "01060000000100000001030000000100000005000000000000000000f03f0000000000000000000000000000f03f000000000000f03f0000000000000000000000000000f03f00000000000000000000000000000000000000000000f03f0000000000000000".decode('hex')
+        geom = geometry_wkb(wkb)
+        self.failUnlessEqual(geom['type'], "MultiPolygon")
+        self.failUnlessEqual(len(geom['coordinates']), 1)
+        self.failUnlessEqual(len(geom['coordinates'][0]), 1)
+        self.failUnlessEqual(len(geom['coordinates'][0][0]), 5)
+        x, y = zip(*geom['coordinates'][0][0])
+        self.failUnlessEqual(min(x), 0.0)
+        self.failUnlessEqual(min(y), 0.0)
+        self.failUnlessEqual(max(x), 1.0)
+        self.failUnlessEqual(max(y), 1.0)
+
diff --git a/tests/test_geopackage.py b/tests/test_geopackage.py
new file mode 100644
index 0000000..3cc599d
--- /dev/null
+++ b/tests/test_geopackage.py
@@ -0,0 +1,77 @@
+
+import logging
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+import fiona
+from fiona.collection import supported_drivers
+from fiona.errors import FionaValueError, DriverError, SchemaError, CRSError
+from fiona.ogrext import calc_gdal_version_num, get_gdal_version_num
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+
+class ReadingTest(unittest.TestCase):
+
+    def setUp(self):
+        pass
+
+    def tearDown(self):
+        pass
+
+    def test_gpkg(self):
+        if get_gdal_version_num() < calc_gdal_version_num(1, 11, 0):
+            self.assertRaises(DriverError, fiona.open, 'docs/data/test_uk.gpkg', 'r', driver="GPKG")
+        else:
+            with fiona.open('docs/data/test_uk.gpkg', 'r', driver="GPKG") as c:
+                self.assertEquals(len(c), 48)
+
+
+class WritingTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_gpkg(self):
+        schema = {'geometry': 'Point',
+                  'properties': [('title', 'str')]}
+        crs = {
+            'a': 6370997,
+            'lon_0': -100,
+            'y_0': 0,
+            'no_defs': True,
+            'proj': 'laea',
+            'x_0': 0,
+            'units': 'm',
+            'b': 6370997,
+            'lat_0': 45}
+
+        path = os.path.join(self.tempdir, 'foo.gpkg')
+        
+        if get_gdal_version_num() < calc_gdal_version_num(1, 11, 0):
+            self.assertRaises(DriverError,
+                        fiona.open,
+                        path,
+                        'w',
+                        driver='GPKG',
+                        schema=schema,
+                        crs=crs)
+        else:
+            with fiona.open(path, 'w',
+                            driver='GPKG',
+                            schema=schema,
+                            crs=crs) as c:
+                c.writerecords([{
+                    'geometry': {'type': 'Point', 'coordinates': [0.0, 0.0]},
+                    'properties': {'title': 'One'}}])
+                c.writerecords([{
+                    'geometry': {'type': 'Point', 'coordinates': [2.0, 3.0]},
+                    'properties': {'title': 'Two'}}])
+            with fiona.open(path) as c:
+                self.assertEquals(c.schema['geometry'], 'Point')
+                self.assertEquals(len(c), 2)
diff --git a/tests/test_layer.py b/tests/test_layer.py
new file mode 100644
index 0000000..f5970f0
--- /dev/null
+++ b/tests/test_layer.py
@@ -0,0 +1,77 @@
+import logging
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+import fiona
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+from .test_collection import ReadingTest
+
+def test_index_selection():
+    with fiona.open('docs/data/test_uk.shp', 'r', layer=0) as c:
+        assert len(c) == 48
+
+class FileReadingTest(ReadingTest):
+    
+    def setUp(self):
+        self.c = fiona.open('docs/data/test_uk.shp', 'r', layer='test_uk')
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_open_repr(self):
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<open Collection 'docs/data/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_closed_repr(self):
+        self.c.close()
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<closed Collection 'docs/data/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_name(self):
+        self.failUnlessEqual(self.c.name, 'test_uk')
+
+class DirReadingTest(ReadingTest):
+    
+    def setUp(self):
+        self.c = fiona.open("docs/data", "r", layer="test_uk")
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_open_repr(self):
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<open Collection 'docs/data:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_closed_repr(self):
+        self.c.close()
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<closed Collection 'docs/data:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_name(self):
+        self.failUnlessEqual(self.c.name, 'test_uk')
+
+    def test_path(self):
+        self.failUnlessEqual(self.c.path, "docs/data")
+
+class InvalidLayerTest(unittest.TestCase):
+
+    def test_invalid(self):
+        self.assertRaises(ValueError, fiona.open, ("docs/data/test_uk.shp"), layer="foo")
+
+    def test_write_numeric_layer(self):
+        self.assertRaises(ValueError, fiona.open,
+                          (os.path.join(tempfile.gettempdir(), "test-no-iter.shp")),
+                          mode='w', layer=0)
diff --git a/tests/test_listing.py b/tests/test_listing.py
new file mode 100644
index 0000000..f8f0b52
--- /dev/null
+++ b/tests/test_listing.py
@@ -0,0 +1,47 @@
+import logging
+import os
+import shutil
+import sys
+import unittest
+
+import fiona
+import fiona.ogrext
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+def test_single_file_private():
+    with fiona.drivers():
+        assert fiona.ogrext._listlayers('docs/data/test_uk.shp') == ['test_uk']
+
+def test_single_file():
+    assert fiona.listlayers('docs/data/test_uk.shp') == ['test_uk']
+
+def test_directory():
+    assert fiona.listlayers('docs/data') == ['test_uk']
+
+def test_directory_trailing_slash():
+    assert fiona.listlayers('docs/data/') == ['test_uk']
+
+def test_zip_path():
+    assert fiona.listlayers('zip://docs/data/test_uk.zip') == ['test_uk']
+
+def test_zip_path_arch():
+    assert fiona.listlayers('/test_uk.shp', vfs='zip://docs/data/test_uk.zip') == ['test_uk']
+
+class ListLayersArgsTest(unittest.TestCase):
+    def test_path(self):
+        self.assertRaises(TypeError, fiona.listlayers, (1))
+    def test_vfs(self):
+        self.assertRaises(TypeError, fiona.listlayers, ("/"), vfs=1)
+    def test_path_ioerror(self):
+        self.assertRaises(IOError, fiona.listlayers, ("foobar"))
+
+def test_parse_path():
+    assert fiona.parse_paths("zip://foo.zip") == ("foo.zip", "zip", None)
+
+def test_parse_path2():
+    assert fiona.parse_paths("foo") == ("foo", None, None)
+
+def test_parse_vfs():
+    assert fiona.parse_paths("/", "zip://foo.zip") == ("/", "zip", "foo.zip")
+
diff --git a/tests/test_multiconxn.py b/tests/test_multiconxn.py
new file mode 100644
index 0000000..dc0034b
--- /dev/null
+++ b/tests/test_multiconxn.py
@@ -0,0 +1,124 @@
+import logging
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+import fiona
+from fiona.odict import OrderedDict
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+class ReadAccess(unittest.TestCase):
+    # To check that we'll be able to get multiple 'r' connections to layers
+    # in a single file.
+    
+    def setUp(self):
+        self.c = fiona.open("docs/data/test_uk.shp", "r", layer="test_uk")
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_meta(self):
+        with fiona.open("docs/data/test_uk.shp", "r", layer="test_uk") as c2:
+            self.assertEqual(len(self.c), len(c2))
+            self.assertEqual(sorted(self.c.schema.items()), sorted(c2.schema.items()))
+
+    def test_meta(self):
+        f1 = next(self.c)
+        with fiona.open("docs/data/test_uk.shp", "r", layer="test_uk") as c2:
+            f2 = next(c2)
+            self.assertEqual(f1, f2)
+
+class ReadWriteAccess(unittest.TestCase):
+    # To check that we'll be able to read from a file that we're
+    # writing to.
+    
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.c = fiona.open(
+            os.path.join(self.tempdir, "multi_write_test.shp"),
+            "w",
+            driver="ESRI Shapefile",
+            schema={
+                'geometry': 'Point', 
+                'properties': [('title', 'str:80'), ('date', 'date')]},
+            crs={'init': "epsg:4326", 'no_defs': True},
+            encoding='utf-8')
+        self.f = {
+            'type': 'Feature',
+            'geometry': {'type': 'Point', 'coordinates': (0.0, 0.1)},
+            'properties': OrderedDict([('title', 'point one'), ('date', '2012-01-29')])}
+        self.c.writerecords([self.f])
+        self.c.flush()
+
+    def tearDown(self):
+        self.c.close()
+        shutil.rmtree(self.tempdir)
+
+    def test_meta(self):
+        c2 = fiona.open(os.path.join(self.tempdir, "multi_write_test.shp"), "r")
+        self.assertEqual(len(self.c), len(c2))
+        self.assertEqual(sorted(self.c.schema.items()), sorted(c2.schema.items()))
+
+    def test_read(self):
+        c2 = fiona.open(os.path.join(self.tempdir, "multi_write_test.shp"), "r")
+        f2 = next(c2)
+        del f2['id']
+        self.assertEqual(self.f, f2)
+
+    def test_read_after_close(self):
+        c2 = fiona.open(os.path.join(self.tempdir, "multi_write_test.shp"), "r")
+        self.c.close()
+        f2 = next(c2)
+        del f2['id']
+        self.assertEqual(self.f, f2)
+
+class LayerCreation(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.dir = os.path.join(self.tempdir, 'layer_creation')
+        if os.path.exists(self.dir):
+            shutil.rmtree(self.dir)
+        os.mkdir(self.dir)
+        self.c = fiona.open(
+            self.dir,
+            'w',
+            layer='write_test',
+            driver='ESRI Shapefile',
+            schema={
+                'geometry': 'Point', 
+                'properties': [('title', 'str:80'), ('date', 'date')]},
+            crs={'init': "epsg:4326", 'no_defs': True},
+            encoding='utf-8')
+        self.f = {
+            'type': 'Feature',
+            'geometry': {'type': 'Point', 'coordinates': (0.0, 0.1)},
+            'properties': OrderedDict([('title', 'point one'), ('date', '2012-01-29')])}
+        self.c.writerecords([self.f])
+        self.c.flush()
+
+    def tearDown(self):
+        self.c.close()
+        shutil.rmtree(self.tempdir)
+
+    def test_meta(self):
+        c2 = fiona.open(os.path.join(self.dir, "write_test.shp"), "r")
+        self.assertEqual(len(self.c), len(c2))
+        self.assertEqual(sorted(self.c.schema.items()), sorted(c2.schema.items()))
+
+    def test_read(self):
+        c2 = fiona.open(os.path.join(self.dir, "write_test.shp"), "r")
+        f2 = next(c2)
+        del f2['id']
+        self.assertEqual(self.f, f2)
+
+    def test_read_after_close(self):
+        c2 = fiona.open(os.path.join(self.dir, "write_test.shp"), "r")
+        self.c.close()
+        f2 = next(c2)
+        del f2['id']
+        self.assertEqual(self.f, f2)
+
diff --git a/tests/test_props.py b/tests/test_props.py
new file mode 100644
index 0000000..41295f7
--- /dev/null
+++ b/tests/test_props.py
@@ -0,0 +1,20 @@
+
+from six import text_type
+from fiona import prop_type, prop_width
+from fiona.rfc3339 import FionaDateType
+
+def test_width_str():
+    assert prop_width('str:254') == 254
+    assert prop_width('str') == 80
+
+def test_width_other():
+    assert prop_width('int') == None
+    assert prop_width('float') == None
+    assert prop_width('date') == None
+
+def test_types():
+    assert prop_type('str:254') == text_type
+    assert prop_type('str') == text_type
+    assert prop_type('int') == type(0)
+    assert prop_type('float') == type(0.0)
+    assert prop_type('date') == FionaDateType
diff --git a/tests/test_revolvingdoor.py b/tests/test_revolvingdoor.py
new file mode 100644
index 0000000..5da4edb
--- /dev/null
+++ b/tests/test_revolvingdoor.py
@@ -0,0 +1,37 @@
+# Test of opening and closing and opening
+
+import logging
+import os.path
+import shutil
+import subprocess
+import sys
+import tempfile
+import unittest
+
+import fiona
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+log = logging.getLogger('fiona.tests')
+
+class RevolvingDoorTest(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+    
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_write_revolving_door(self):
+
+        with fiona.open('docs/data/test_uk.shp') as src:
+            meta = src.meta
+            features = list(src)
+
+        shpname = os.path.join(self.tempdir, 'foo.shp')
+        
+        with fiona.open(shpname, 'w', **meta) as dst:
+            dst.writerecords(features)
+
+        with fiona.open(shpname) as src:
+            pass
+
diff --git a/tests/test_rfc3339.py b/tests/test_rfc3339.py
new file mode 100644
index 0000000..f76c2a1
--- /dev/null
+++ b/tests/test_rfc3339.py
@@ -0,0 +1,63 @@
+# testing Fiona's RFC 3339 support, to be called by nosetests
+
+import logging
+import re
+import sys
+import unittest
+
+from fiona.rfc3339 import parse_date, parse_datetime, parse_time
+from fiona.rfc3339 import group_accessor, pattern_date
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+class DateParseTest(unittest.TestCase):
+
+    def test_yyyymmdd(self):
+        self.failUnlessEqual(
+            parse_date("2012-01-29"), (2012, 1, 29, 0, 0, 0, 0.0))
+
+    def test_error(self):
+        self.assertRaises(ValueError, parse_date, ("xxx"))
+
+class TimeParseTest(unittest.TestCase):
+    
+    def test_hhmmss(self):
+        self.failUnlessEqual(
+            parse_time("10:11:12"), (0, 0, 0, 10, 11, 12, 0.0))
+
+    def test_hhmm(self):
+        self.failUnlessEqual(
+            parse_time("10:11"), (0, 0, 0, 10, 11, 0, 0.0))
+
+    def test_hhmmssff(self):
+        self.failUnlessEqual(
+            parse_time("10:11:12.42"), 
+            (0, 0, 0, 10, 11, 12, 0.42*1000000.0))
+
+    def test_hhmmssz(self):
+        self.failUnlessEqual(
+            parse_time("10:11:12Z"), (0, 0, 0, 10, 11, 12, 0.0))
+
+    def test_hhmmssoff(self):
+        self.failUnlessEqual(
+            parse_time("10:11:12-01:00"), (0, 0, 0, 10, 11, 12, 0.0))
+
+    def test_error(self):
+        self.assertRaises(ValueError, parse_time, ("xxx"))
+
+class DatetimeParseTest(unittest.TestCase):
+    
+    def test_yyyymmdd(self):
+        self.failUnlessEqual(
+            parse_datetime("2012-01-29T10:11:12"), 
+            (2012, 1, 29, 10, 11, 12, 0.0))
+
+    def test_error(self):
+        self.assertRaises(ValueError, parse_datetime, ("xxx"))
+
+def test_group_accessor_indexerror():
+    match = re.search(pattern_date, '2012-01-29')
+    g = group_accessor(match)
+    assert g.group(-1) == 0
+    assert g.group(6) == 0
+
diff --git a/tests/test_schema.py b/tests/test_schema.py
new file mode 100644
index 0000000..092c3e7
--- /dev/null
+++ b/tests/test_schema.py
@@ -0,0 +1,126 @@
+import os
+import shutil
+import tempfile
+import unittest
+import fiona
+
+class SchemaOrder(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_schema_ordering_items(self):
+        items = [('title', 'str:80'), ('date', 'date')]
+        with fiona.open(os.path.join(self.tempdir, 'test_schema.shp'), 'w',
+                driver="ESRI Shapefile",
+                schema={
+                    'geometry': 'LineString', 
+                    'properties': items }) as c:
+            self.assertEqual(list(c.schema['properties'].items()), items)
+        with fiona.open(os.path.join(self.tempdir, 'test_schema.shp')) as c:
+            self.assertEqual(list(c.schema['properties'].items()), items)
+
+class ShapefileSchema(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def test_schema(self):
+        items = sorted({
+            'AWATER10': 'float',
+            'CLASSFP10': 'str',
+            'ZipCodeType': 'str',
+            'EstimatedPopulation': 'float',
+            'LocationType': 'str',
+            'ALAND10': 'float',
+            'TotalWages': 'float',
+            'FUNCSTAT10': 'str',
+            'Long': 'float',
+            'City': 'str',
+            'TaxReturnsFiled': 'float',
+            'State': 'str',
+            'Location': 'str',
+            'GSrchCnt': 'float',
+            'INTPTLAT10': 'str',
+            'Lat': 'float',
+            'MTFCC10': 'str',
+            'Decommisioned': 'str',
+            'GEOID10': 'str',
+            'INTPTLON10': 'str'}.items())
+        with fiona.open(os.path.join(self.tempdir, 'test_schema.shp'), 'w',
+                driver="ESRI Shapefile",
+                schema={
+                    'geometry': 'Polygon', 
+                    'properties': items }) as c:
+            self.assertEqual(list(c.schema['properties'].items()), items)
+            c.write(
+                {'geometry': {'coordinates': [[(-117.882442, 33.783633),
+                                               (-117.882284, 33.783817),
+                                               (-117.863348, 33.760016),
+                                               (-117.863478, 33.760016),
+                                               (-117.863869, 33.760017),
+                                                (-117.864, 33.760017999999995),
+                                                (-117.864239, 33.760019),
+                                                (-117.876608, 33.755769),
+                                                (-117.882886, 33.783114),
+                                                (-117.882688, 33.783345),
+                                                (-117.882639, 33.783401999999995),
+                                                (-117.88259, 33.78346),
+                                                (-117.882442, 33.783633)]],
+                               'type': 'Polygon'},
+                 'id': '1',
+                 'properties':{
+                    'ALAND10': 8819240.0,
+                    'AWATER10': 309767.0,
+                    'CLASSFP10': 'B5',
+                    'City': 'SANTA ANA',
+                    'Decommisioned': False,
+                    'EstimatedPopulation': 27773.0,
+                    'FUNCSTAT10': 'S',
+                    'GEOID10': '92706',
+                    'GSrchCnt': 0.0,
+                    'INTPTLAT10': '+33.7653010',
+                    'INTPTLON10': '-117.8819759',
+                    'Lat': 33.759999999999998,
+                    'Location': 'NA-US-CA-SANTA ANA',
+                    'LocationType': 'PRIMARY',
+                    'Long': -117.88,
+                    'MTFCC10': 'G6350',
+                    'State': 'CA',
+                    'TaxReturnsFiled': 14635.0,
+                    'TotalWages': 521280485.0,
+                    'ZipCodeType': 'STANDARD'},
+                 'type': 'Feature'} )
+            self.assertEqual(len(c), 1)
+        with fiona.open(os.path.join(self.tempdir, 'test_schema.shp')) as c:
+            self.assertEqual(
+                list(c.schema['properties'].items()), 
+                sorted([('AWATER10', 'float:24.15'), 
+                 ('CLASSFP10', 'str:80'), 
+                 ('ZipCodeTyp', 'str:80'), 
+                 ('EstimatedP', 'float:24.15'), 
+                 ('LocationTy', 'str:80'), 
+                 ('ALAND10', 'float:24.15'), 
+                 ('INTPTLAT10', 'str:80'), 
+                 ('FUNCSTAT10', 'str:80'), 
+                 ('Long', 'float:24.15'), 
+                 ('City', 'str:80'), 
+                 ('TaxReturns', 'float:24.15'), 
+                 ('State', 'str:80'), 
+                 ('Location', 'str:80'), 
+                 ('GSrchCnt', 'float:24.15'), 
+                 ('TotalWages', 'float:24.15'), 
+                 ('Lat', 'float:24.15'), 
+                 ('MTFCC10', 'str:80'), 
+                 ('INTPTLON10', 'str:80'), 
+                 ('GEOID10', 'str:80'), 
+                 ('Decommisio', 'str:80')]) )
+            f = next(c)
+            self.assertEqual(f['properties']['EstimatedP'], 27773.0)
+
diff --git a/tests/test_slice.py b/tests/test_slice.py
new file mode 100644
index 0000000..6e4d62a
--- /dev/null
+++ b/tests/test_slice.py
@@ -0,0 +1,75 @@
+import logging
+import sys
+
+import fiona
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+def test_collection_get():
+    with fiona.open('docs/data/test_uk.shp') as src:
+        result = src[5]
+        assert result['id'] == '5'
+
+def test_collection_slice():
+    with fiona.open('docs/data/test_uk.shp') as src:
+        results = src[:5]
+        assert isinstance(results, list)
+        assert len(results) == 5
+        assert results[4]['id'] == '4'
+
+def test_collection_iterator_slice():
+    with fiona.open('docs/data/test_uk.shp') as src:
+        results = list(src.items(5))
+        assert len(results) == 5
+        k, v = results[4]
+        assert k == 4
+        assert v['id'] == '4'
+
+def test_collection_iterator_next():
+    with fiona.open('docs/data/test_uk.shp') as src:
+        k, v = next(src.items(5, None))
+        assert k == 5
+        assert v['id'] == '5'
+
+def test_collection_iterator_items_slice():
+
+    with fiona.open('docs/data/test_uk.shp') as src:
+        l = len(src)
+
+        items = list(src.items(0, 5))
+        assert len(items) == 5
+
+        items = list(src.items(1, 5))
+        assert len(items) == 4
+
+        items = list(src.items(-5, None))
+        assert len(items) == 5
+
+        items = list(src.items(-5, -1))
+        assert len(items) == 4
+
+        items = list(src.items(0, None))
+        assert len(items) == l
+
+        items = list(src.items(5, None))
+        assert len(items) == (l - 5)
+
+        items = list(src.items(5, None, -1))
+        assert len(items) == 6
+
+        items = list(src.items(5, None, -2))
+        assert len(items) == 3
+
+        items = list(src.items(4, None, -2))
+        assert len(items) == 3
+
+        items = list(src.items(-1, -5, -1))
+        assert len(items) == 4
+
+        items = list(src.items(-5, None, -1))
+        assert len(items) == (l - 5 + 1)
+
+def test_collection_iterator_keys_next():
+    with fiona.open('docs/data/test_uk.shp') as src:
+        k = next(src.keys(5, None))
+        assert k == 5
diff --git a/tests/test_unicode.py b/tests/test_unicode.py
new file mode 100644
index 0000000..2266124
--- /dev/null
+++ b/tests/test_unicode.py
@@ -0,0 +1,47 @@
+# coding: utf-8
+
+import logging
+import os
+import shutil
+import sys
+import tempfile
+import unittest
+
+import six
+
+import fiona
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+class UnicodePathTest(unittest.TestCase):
+
+    def setUp(self):
+        tempdir = tempfile.mkdtemp()
+        self.dir = os.path.join(tempdir, 'français')
+        shutil.copytree('docs/data/', self.dir)
+
+    def tearDown(self):
+        shutil.rmtree(os.path.dirname(self.dir))
+
+    def test_unicode_path(self):
+        path = self.dir + '/test_uk.shp'
+        if sys.version_info < (3,):
+            path = path.decode('utf-8')
+        with fiona.open(path) as c:
+            assert len(c) == 48
+
+    def test_unicode_path_layer(self):
+        path = self.dir
+        layer = 'test_uk'
+        if sys.version_info < (3,):
+            path = path.decode('utf-8')
+            layer = layer.decode('utf-8')
+        with fiona.open(path, layer=layer) as c:
+            assert len(c) == 48
+
+    def test_utf8_path(self):
+        path = self.dir + '/test_uk.shp'
+        if sys.version_info < (3,):
+            with fiona.open(path) as c:
+                assert len(c) == 48
+
diff --git a/tests/test_vfs.py b/tests/test_vfs.py
new file mode 100644
index 0000000..c73f06c
--- /dev/null
+++ b/tests/test_vfs.py
@@ -0,0 +1,100 @@
+import logging
+import os
+import shutil
+import sys
+import unittest
+
+import fiona
+
+logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
+
+from .test_collection import ReadingTest
+
+
+class VsiReadingTest(ReadingTest):
+    
+    # There's a bug in GDAL 1.9.2 http://trac.osgeo.org/gdal/ticket/5093
+    # in which the VSI driver reports the wrong number of features.
+    # I'm overriding ReadingTest's test_filter_1 with a function that
+    # passes and creating a new method in this class that we can exclude
+    # from the test runner at run time.
+
+    def test_filter_vsi(self):
+        results = list(self.c.filter(bbox=(-15.0, 35.0, 15.0, 65.0)))
+        self.failUnlessEqual(len(results), 48)
+        f = results[0]
+        self.failUnlessEqual(f['id'], "0")
+        self.failUnlessEqual(f['properties']['FIPS_CNTRY'], 'UK')
+
+class ZipReadingTest(VsiReadingTest):
+    
+    def setUp(self):
+        self.c = fiona.open("zip://docs/data/test_uk.zip", "r")
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_open_repr(self):
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<open Collection '/vsizip/docs/data/test_uk.zip:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_closed_repr(self):
+        self.c.close()
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<closed Collection '/vsizip/docs/data/test_uk.zip:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_path(self):
+        self.failUnlessEqual(self.c.path, '/vsizip/docs/data/test_uk.zip')
+
+class ZipArchiveReadingTest(VsiReadingTest):
+    
+    def setUp(self):
+        self.c = fiona.open("/test_uk.shp", "r", vfs="zip://docs/data/test_uk.zip")
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_open_repr(self):
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<open Collection '/vsizip/docs/data/test_uk.zip/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_closed_repr(self):
+        self.c.close()
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<closed Collection '/vsizip/docs/data/test_uk.zip/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_path(self):
+        self.failUnlessEqual(self.c.path, '/vsizip/docs/data/test_uk.zip/test_uk.shp')
+
+class TarArchiveReadingTest(VsiReadingTest):
+    
+    def setUp(self):
+        self.c = fiona.open("/testing/test_uk.shp", "r", vfs="tar://docs/data/test_uk.tar")
+    
+    def tearDown(self):
+        self.c.close()
+
+    def test_open_repr(self):
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<open Collection '/vsitar/docs/data/test_uk.tar/testing/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_closed_repr(self):
+        self.c.close()
+        self.failUnlessEqual(
+            repr(self.c),
+            ("<closed Collection '/vsitar/docs/data/test_uk.tar/testing/test_uk.shp:test_uk', mode 'r' "
+            "at %s>" % hex(id(self.c))))
+
+    def test_path(self):
+        self.failUnlessEqual(self.c.path, '/vsitar/docs/data/test_uk.tar/testing/test_uk.shp')
+

-- 
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