[Python-modules-commits] [requests] 05/13: Use the same unbundling strategy implemented by pip

Daniele Tricoli eriol-guest at moszumanska.debian.org
Thu Sep 8 22:32:09 UTC 2016


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eriol-guest pushed a commit to branch master
in repository requests.

commit 3259bc619e3e9f621463b0fe4bbbf37645452b66
Author: Daniele Tricoli <eriol at mornie.org>
Date:   Sat Jun 18 18:57:45 2016 +0200

    Use the same unbundling strategy implemented by pip
    
    Description: Use the same unbundling strategy implemented by pip.
    Author: The pip developers <python-virtualenv at groups.google.com>
    Patch-Name: use-pip-unbundling.patch
---
 requests/packages/__init__.py | 61 ++++++++++++++++++++++++++++++++++++-------
 1 file changed, 51 insertions(+), 10 deletions(-)

diff --git a/requests/packages/__init__.py b/requests/packages/__init__.py
index 971c2ad..7a87131 100644
--- a/requests/packages/__init__.py
+++ b/requests/packages/__init__.py
@@ -23,14 +23,55 @@ request.
 from __future__ import absolute_import
 import sys
 
-try:
-    from . import urllib3
-except ImportError:
-    import urllib3
-    sys.modules['%s.urllib3' % __name__] = urllib3
+# On Debian we use the unbundling strategy implemented by pip inside
+# pip._vendor.__init__.
+def vendored(modulename):
+    vendored_name = "{0}.{1}".format(__name__, modulename)
 
-try:
-    from . import chardet
-except ImportError:
-    import chardet
-    sys.modules['%s.chardet' % __name__] = chardet
+    try:
+        __import__(vendored_name, globals(), locals(), level=0)
+    except ImportError:
+        try:
+            __import__(modulename, globals(), locals(), level=0)
+        except ImportError:
+            # We can just silently allow import failures to pass here. If we
+            # got to this point it means that ``import requests.packages.whatever``
+            # failed and so did ``import whatever``. Since we're importing this
+            # upfront in an attempt to alias imports, not erroring here will
+            # just mean we get a regular import error whenever requests
+            # *actually* tries to import one of these modules to use it, which
+            # actually gives us a better error message than we would have
+            # otherwise gotten.
+            pass
+        else:
+            sys.modules[vendored_name] = sys.modules[modulename]
+            base, head = vendored_name.rsplit(".", 1)
+            setattr(sys.modules[base], head, sys.modules[modulename])
+
+vendored('chardet')
+vendored('urllib3')
+vendored('urllib3._collections')
+vendored('urllib3.connection')
+vendored('urllib3.connectionpool')
+vendored('urllib3.contrib')
+vendored('urllib3.contrib.ntlmpool')
+vendored('urllib3.contrib.pyopenssl')
+vendored('urllib3.exceptions')
+vendored('urllib3.fields')
+vendored('urllib3.filepost')
+vendored('urllib3.packages')
+vendored('urllib3.packages.ordered_dict')
+vendored('urllib3.packages.six')
+vendored('urllib3.packages.ssl_match_hostname')
+vendored('urllib3.packages.ssl_match_hostname._implementation')
+vendored('urllib3.poolmanager')
+vendored('urllib3.request')
+vendored('urllib3.response')
+vendored('urllib3.util')
+vendored('urllib3.util.connection')
+vendored('urllib3.util.request')
+vendored('urllib3.util.response')
+vendored('urllib3.util.retry')
+vendored('urllib3.util.ssl_')
+vendored('urllib3.util.timeout')
+vendored('urllib3.util.url')

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