相关疑难解决方法(0)

不能再用pip了

当我尝试使用pip时,我遇到了这个错误:

Traceback (most recent call last):
  File "/usr/local/bin/pip", line 9, in <module>
    load_entry_point('pip==1.0.2', 'console_scripts', 'pip')()
  File "/usr/local/lib/python2.6/dist-packages/distribute-0.6.21-py2.6.egg/pkg_resources.py", line 337, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/local/lib/python2.6/dist-packages/distribute-0.6.21-py2.6.egg/pkg_resources.py", line 2281, in load_entry_point
    return ep.load()
  File "/usr/local/lib/python2.6/dist-packages/distribute-0.6.21-py2.6.egg/pkg_resources.py", line 1996, in load
    raise ImportError("%r has no %r attribute" % (entry,attr))
ImportError: <module 'pip' from '/usr/lib/pymodules/python2.6/pip/__init__.pyc'> has no 'main' attribute

Run Code Online (Sandbox Code Playgroud)

显然,我对破坏了pip的系统做了一些改变.但我不知道它是什么.什么可能导致上述例外？

编辑:

我能猜到的是,今天早上,我创建了一个virtualenv,通过运行安装自己编写的包: