使用pip安装PyGreSQL失败

Question

我目前正在尝试使用pip install PyGreSQL安装PyGreSQL，但是，当我运行该命令时，我得到了以下错误：

Could not import setuptools which is required to install from a source distribution.
Traceback (most recent call last):
   File "/usr/local/lib/python2.7/site-packages/pip/req/req_install.py", line 375, in setup_py 
       import setuptools  # noqa
   File "/usr/local/lib/python2.7/site-packages/setuptools/__init__.py", line 11, in <module>
       from setuptools.extern.six.moves import filterfalse, map
   File "/usr/local/lib/python2.7/site-packages/setuptools/setuptools/__init__.py", line 12, in <module>
       from setuptools.extension import Extension
   File "/usr/local/lib/python2.7/site-packages/setuptools/extension.py", line 8, in <module>
       from setuptools.extern.six.moves import map
ImportError: No module named extern.six.moves

有没有人知道可能出了什么问题？据我所知，extern.six.moves出了点问题，然而，我在网上找不到任何关于这个的东西……

Answer 1

这最终是由于setuptools没有正确安装在我的机器上。感谢@Famarri帮助我认识到这一点