Not compatible with python2.7

[Dag Odenhall]

Binary package hint: python-virtualenv

$ virtualenv -p python2.7 testenv
Running virtualenv with interpreter /usr/bin/python2.7
New python executable in testenv/bin/python2.7
Also creating executable in testenv/bin/python
Traceback (most recent call last):
  File "/home/dag/testenv/lib/python2.7/site.py", line 67, in <module>
    import os
  File "/home/dag/testenv/lib/python2.7/os.py", line 398, in <module>
    import UserDict
  File "/home/dag/testenv/lib/python2.7/UserDict.py", line 83, in <module>
    import _abcoll
  File "/home/dag/testenv/lib/python2.7/_abcoll.py", line 11, in <module>
    from abc import ABCMeta, abstractmethod
  File "/home/dag/testenv/lib/python2.7/abc.py", line 8, in <module>
    from _weakrefset import WeakSet
ImportError: No module named _weakrefset
ERROR: The executable testenv/bin/python2.7 is not functioning
ERROR: It thinks sys.prefix is '/home/dag' (should be '/home/dag/testenv')
ERROR: virtualenv is not compatible with this system or executable

[F. Hantho (hantho)]

It looks like the issue is known to the author of virtualenv http://bitbucket.org/ianb/virtualenv/issue/63/now-python27-requires-_weakrefset and also that it will be fixed in the newest version of Python 2.7 http://bugs.python.org/issue2521

[Barry Warsaw (barry)]

Attached debdiff will resolve the problem. Note that because of package importer failures

http://package-import.ubuntu.com/status/python-virtualenv.html#2010-04-21 01:05:45.434033

no merge proposal is possible.

[Launchpad Janitor (janitor)]

This bug was fixed in the package python-virtualenv - 1.4.9-3ubuntu1

---------------
python-virtualenv (1.4.9-3ubuntu1) natty; urgency=low

  * Add weakrefset to REQUIRED_MODULES. Backports unreleased upstream fix
    for Python 2.7 compatibility.
    http://bitbucket.org/ianb/virtualenv/issue/63/now-python27-requires-_weakrefset
    (LP: #662611)
 -- Barry Warsaw <email address hidden> Wed, 24 Nov 2010 18:05:21 -0500