Traceback (most recent call last):
File "/usr/local/bin/pip", line 9, in <module>
load_entry_point('pip==9.0.1', 'console_scripts', 'pip')()
File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/__init__.py", line 233, in main
return command.main(cmd_args)
File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/basecommand.py", line 185, in main
for name in ["pip._vendor", "distlib", "requests", "urllib3"]
File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/compat/dictconfig.py", line 565, in dictConfig
dictConfigClass(config).configure()
File "/Library/Python/2.7/site-packages/pip-9.0.1-py2.7.egg/pip/compat/dictconfig.py", line 332, in configure
del logging._handlerList[:]
AttributeError: 'module' object has no attribute '_handlerList'
一.pip 版本升级造成的原因
升级过后会有 logging-0.4.9.6的在你的/Library/Python/2.7/site-packages/文件夹下的，删除即可。
二.easy_install 的logging文件
若是前面第一步完成后还没有解决，继续查看下一步即可，亲
logging文件也是在/Library/Python/2.7/site-packages/文件夹下
@Aarushi-Ign You shouldn't have any logging-0.4.9.6, or easy_install logging. The logging module is part of the standard library. What seems to be happening is that your 3rd-party logging module is overriding the stdlib version (that's a fault of easy_install, which puts 3rd party modules ahead of the standard library in PYTHONPATH).
Try uninstalling all 3rd party logging modules, and that should fix your issue.
这是翻墙看到的解决方案。
链接：https://github.com/pypa/pip/issues/3193