Bug#863829: python2: dolfin 'module' object has no attribute 'cpp'

[Drew Parsons]

Package: python-dolfin
Version: 2016.2.0-3
Severity: grave
Justification: renders package unusable

Weird, the new python3 module seems to have broken the python2 dolfin
module.  That's not good.

Importing dolfin gives the error:
AttributeError: 'module' object has no attribute 'cpp'

Importing in python3 does not have this error.

$ ipython
Python 2.7.13 (default, Jan 19 2017, 14:48:08) 
In [1]: import dolfin
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-1-7d9b2153bc0b> in <module>()
----> 1 import dolfin

/usr/lib/python2.7/dist-packages/dolfin/__init__.pyc in <module>()
     15 
     16 # Import names from the compiled cpp modules
---> 17 from . import cpp
     18 from dolfin.cpp import *
     19 from dolfin.cpp import __version__, __swigversion__, __pythonversion__

/usr/lib/python2.7/dist-packages/dolfin/cpp/__init__.py in <module>()
     41 
     42     # Import the module
---> 43     exec("from . import %s" % module_name)
     44     module = globals()[module_name]
     45 

<string> in <module>()

/usr/lib/python2.7/dist-packages/dolfin/cpp/la.py in <module>()
    233 make_ufc_form = _la.make_ufc_form
    234 import dolfin.cpp.common
--> 235 class LinearAlgebraObject(dolfin.cpp.common.Variable):
    236     """
    237 

AttributeError: 'module' object has no attribute 'cpp'




-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64
 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages python-dolfin depends on:
ii  libc6                             2.24-11
ii  libdolfin-dev                     2016.2.0-3
ii  libdolfin2016.2                   2016.2.0-3
ii  libgcc1                           1:6.3.0-18
ii  libgomp1                          6.3.0-18
ii  libopenmpi2                       2.0.2-2
ii  libpetsc3.7.5 [libpetsc3.7]       3.7.5+dfsg1-4+b1
ii  libpetsc3.7.6 [libpetsc3.7]       3.7.6+dfsg1-1exp1
ii  libpython2.7                      2.7.13-2
ii  libslepc3.7.3 [libslepc3.7]       3.7.3+dfsg1-5
ii  libstdc++6                        6.3.0-18
ii  python                            2.7.13-2
ii  python-dijitso                    2016.2.0-1
ii  python-ffc                        2016.2.0-2
ii  python-instant                    2016.2.0-2
ii  python-numpy [python-numpy-abi9]  1:1.12.1-3
ii  python-petsc4py                   3.7.0-3
ii  python-ply                        3.9-1
ii  python-six                        1.10.0-4
ii  python-slepc4py                   3.7.0-3
ii  python-sympy                      1.0-3
ii  python-ufl                        2016.2.0-2
pn  python:any                        <none>
ii  swig3.0                           3.0.10-1.1

python-dolfin recommends no packages.

Versions of packages python-dolfin suggests:
ii  dolfin-doc  2016.2.0-3

-- no debconf information