未找到“pip==9.0.3”分发版，应用程序需要此分发版

Question

我的笔记本电脑中有最新版本的 pip。当我使用 pip 安装任何模块时，我总是收到此错误。

Traceback (most recent call last):
 File "/usr/local/bin/pip", line 6, in <module>
  from pkg_resources import load_entry_point
File "/usr/local/lib/python2.7/site- 
   packages/pkg_resources/__init__.py", line 3195, in <module>
   @_call_aside
File "/usr/local/lib/python2.7/site- 
   packages/pkg_resources/__init__.py", line 3179, in _call_aside
   f(*args, **kwargs)
File "/usr/local/lib/python2.7/site-p 
  packages/pkg_resources/__init__.py", line 3208, in _ 
  initialize_master_working_set
  working_set = WorkingSet._build_master()
File "/usr/local/lib/python2.7/site- 
   packages/pkg_resources/__init__.py", line 681, in _build_master
   ws.require(__requires__)
File "/usr/local/lib/python2.7/site- 
   packages/pkg_resources/__init__.py", line 999, in require
   needed = self.resolve(parse_requirements(requirements))
File "/usr/local/lib/python2.7/site- 
    packages/pkg_resources/__init__.py", line 885, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'pip==9.0.3' distribution was not found and is required by the application

我该如何解决这个错误。

Answer 1

由于缺少依赖项，很可能您的 pip 崩溃了。尝试重新安装pip。

须藤easy_install pip==9.0.3