ubuntu中执行pip list出现的错误，求教如何解决！

Question

Exception:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/usr/lib/python2.7/dist-packages/pip/commands/list.py", line 80, in run
    self.run_listing(options)
  File "/usr/lib/python2.7/dist-packages/pip/commands/list.py", line 142, in run_listing
    self.output_package_listing(installed_packages)
  File "/usr/lib/python2.7/dist-packages/pip/commands/list.py", line 151, in output_package_listing
    if dist_is_editable(dist):
  File "/usr/lib/python2.7/dist-packages/pip/util.py", line 348, in dist_is_editable
    req = FrozenRequirement.from_dist(dist, [])
  File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 286, in from_dist
    assert len(specs) == 1 and specs[0][0] == '=='
AssertionError

pip 1.5.6 from /usr/lib/python2.7/dist-packages (python 2.7)

Answer 1

尝试把打开
"/usr/lib/python2.7/dist-packages/pip/__init__.py"文件　，把这个断点行注释就可以了。使用无异常。我的电脑可能是安装Ｆｌａｓｋ引起的。网上安装#004ED0 !important;background-color:#FDFDFD;">pip #002D7A !important;background-color:#FDFDFD;">install#006FE0 !important;background-color:#FDFDFD;"> #006FE0 !important;background-color:#FDFDFD;">-U distribute的办法无效／