Mac(OS version: OS X Yosemite 10.10.5)上安装Scrapy模块，使用时出现:
from six.moves import xmlrpc_client as xmlrpclib
ImportError: cannot import name xmlrpc_client
错误
解决方法：
sudo rm -rf /Library/Python/2.7/site-packages/six*
sudo rm -rf /System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/six*
sudo pip install six
遇到错误需要关闭mac sip
If you encounter an error rm: /System/Library/... Operation not permitted
Please try to disable System Integrity Protection
See Operation Not Permitted when on root El capitan (rootless disabled)
关闭Mac sip的方法是
https://www.52mac.com/soft/9464-1-1.html