Description of problem:
Python Interface crashes vim

Version-Release number of selected component (if applicable):
7.3.081-1

How reproducible:
Always

Steps to Reproduce:
1. vim -u NONE
2. :py print "Hello"
3.
  
Actual results:
crash of vim (terminal needs te be reset after this crash):
Traceback (most recent call last):
                                    File "/usr/lib/python2.7/site.py", line 62, in <module>
                                                                                               import os
                                                                                                          File "/usr/lib/python2.7/os.py", line 398, in <module>
                                                                                                                                                                    import UserDict
         File "/usr/lib/python2.7/UserDict.py", line 83, in <module>
                                                                        import _abcoll
                                                                                        File "/usr/lib/python2.7/_abcoll.py", line 11, in <module>
                                                                                                                                                      from abc import ABCMeta, abstractmethod
                   File "/usr/lib/python2.7/abc.py", line 8, in <module>
                                                                            from _weakrefset import WeakSet
                                                                                                             File "/usr/lib/python2.7/_weakrefset.py", line 5, in <module>
                                                                                                                                                                              from _weakref import ref
                          ImportError: No module named _weakref


Expected results:
No crash

Additional info:
This could be related to this recent change in the python package:
* Thu Dec 23 2010 David Malcolm <dmalcolm> - 2.7.1-1
[...]
- drop _weakref.so from manifest (_weakref became a core module in r84230)

I haven't yet been able to pinpoint the source of this problem, so this is just the only clue I have found so far.