在Ubuntu上用Python 2.7创建virtualenv沙盒失败？

Question

为什么virtualenv会抱怨缺少 _weakrefset 呢？

laptop:~/sandbox$ virtualenv --python=/usr/bin/python2.7 --no-site-packages play
Running virtualenv with interpreter /usr/bin/python2.7
New python executable in play/bin/python2.7
Also creating executable in play/bin/python
Traceback (most recent call last):
  File "/home/ribery/sandbox/play/lib/python2.7/site.py", 
    line 67, in <module>
  import os
  File "/home/ribery/sandbox/play/lib/python2.7/os.py", line 398, 
    in <module>
  import UserDict
File "/home/ribery/sandbox/play/lib/python2.7/UserDict.py", line 83, 
    in <module>
  import _abcoll
File "/home/ribery/sandbox/play/lib/python2.7/_abcoll.py", line 11, 
    in <module>
  from abc import ABCMeta, abstractmethod
File "/home/ribery/sandbox/play/lib/python2.7/abc.py", line 8, 
    in <module>
  from _weakrefset import WeakSet
ImportError: No module named _weakrefset
ERROR: The executable django-py27/bin/python2.7 is not functioning
ERROR: It thinks sys.prefix is '/home/ribery/sandbox' 
(should be '/home/ribery/sandbox/play')
ERROR: virtualenv is not compatible with this system or executable

Answer 1

请查看 这个链接

如果你在使用Python 2.7，记得把virtualenv升级到1.5.1或更新的版本。你可以通过输入 virtualenv --version 来查看你现在的版本。