为什么PIP在点冻结时引发AssertionError? [英] Why is PIP raising an AssertionError on pip freeze?

问题描述

我的控制台:

desarrollador@desarrollador-HP-14-Notebook-PC1:~$ pip freeze  
Exception:  
Traceback (most recent call last):  
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 126, in main  
    self.run(options, args)  
  File "/usr/lib/python2.7/dist-packages/pip/commands/freeze.py", line 68, in run  
   req = pip.FrozenRequirement.from_dist(dist, dependency_links, find_tags=find_tags)  
  File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 156, in from_dist  
    assert len(specs) == 1 and specs[0][0] == '=='  
AssertionError

我安装了龙卷风包装，此后发生了.我该如何解决?

I installed the tornado package and this happened since. How can I fix it?

推荐答案

原因:Ubuntu 12.04中的python-pip软件包已经严重过时，并且某些软件包名称存在一些错误(如我所见)，无法正确解析它们.

Reason: The python-pip package in Ubuntu 12.04 is seriously outdated and has some bugs with certain package names (as I can see) and cannot parse them correctly.

解决方案:通过easy_install安装更新版本的pip.

Solution: install a newer version of pip, via easy_install.

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