升级到OS X Mavericks后的损坏的easy_安装和pip

Question

升级到OS X 10.9 Mavericks并安装了XCode、命令行工具、XQuartz等。现在尝试运行pip安装，但它说找不到发行版：

Traceback (most recent call last):

  File "/usr/local/bin/pip", line 5, in <module>
    from pkg_resources import load_entry_point
  File     "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py",     line 2603, in <module>
    working_set.require(__requires__)
  File   "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py",     line 666, in require
needed = self.resolve(parse_requirements(requirements))
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 565, in resolve
raise DistributionNotFound(req)  # XXX put more info here
pkg_resources.DistributionNotFound: pip==1.4.1

所以我试着用一个简单的安装pip。原来那也有问题：

Traceback (most recent call last):
  File "/usr/local/bin/easy_install", line 5, in <module>
from pkg_resources import load_entry_point
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2607, in <module>
parse_requirements(__requires__), Environment()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 565, in resolve
    raise DistributionNotFound(req)  # XXX put more info here
pkg_resources.DistributionNotFound: setuptools==1.1.6

所以其他一些线程说要用sudo python ez_setup.py重新安装setuptools。看起来效果不错：

Installed /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/setuptools-1.1.6-py2.7.egg
Processing dependencies for setuptools==1.1.6
Finished processing dependencies for setuptools==1.1.6

但是当运行easy_install pip时，同样的pkg_resources.DistributionNotFound:setuptools==1.1.6错误发生。还有人有这个问题吗？有什么办法解决这个问题吗？

Answer 1

1. 安装easy_install：

   从https://pypi.python.org/pypi/setuptools下载ez_setup.py模块

   $ cd path/to/ez_setup.py
   $ python ez_setup.py
   

2. 安装pip：

   $ sudo easy_install pip