在我的Digitalocean Ubuntu微滴上，我遇到了一个非常奇怪的问题，Python 2.7给我提供了以下错误：
from instagram import InstagramAuthentication, InstagramAPI File "/root/instagram_insights/socialgraphs-final-assignment/instagram.py", line 1, in <module> import requests File "/usr/lib/python2.7/dist-packages/requests/__init__.py", line 55, in <module> import urllib3 File "/usr/lib/python2.7/dist-packages/urllib3/__init__.py", line 10, in <module> from .connectionpool import ( File "/usr/lib/python2.7/dist-packages/urllib3/connectionpool.py", line 2, in <module> import logging ImportError: No module named logging 事实上，我无法用Python做任何事情 ：
apt-get重新安装python，我得到了同样的错误 pip search logging ，我会得到错误 virtualenv venv创build一个新的virtualenv而不会得到相同的错误 我的PYTHONPATH看起来像这样： ['', '/usr/local/lib/python2.7/dist-packages/gunicorn-19.3.0-py2.7.egg', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages'] PYTHONPATH ['', '/usr/local/lib/python2.7/dist-packages/gunicorn-19.3.0-py2.7.egg', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages'] PYTHONPATH ['', '/usr/local/lib/python2.7/dist-packages/gunicorn-19.3.0-py2.7.egg', '/usr/lib/python2.7/dist-packages', '/usr/lib/python2.7', '/usr/lib/python2.7/plat-x86_64-linux-gnu', '/usr/lib/python2.7/lib-tk', '/usr/lib/python2.7/lib-old', '/usr/lib/python2.7/lib-dynload', '/usr/local/lib/python2.7/dist-packages']
有趣的是，直到我重新启动了gunicorn，这是我用来托pipe我的Flask站点的WSGI服务器之前，错误出现了。
在它发生之前，我正在用nginx处理日志，但是我看不出如何影响我的Python安装。
确保你使用系统级的python而不是virtualenv-from-somewhere：
which python
试着找出这个模块的位置：
sudo updatedb locate logging | grep python
然后尝试将此路径添加到PYTHONPATH