解决方案，制裁urllib3 和chardet sudo pip uninstall urllib3 sudo pip uninstall chardet 然后，再安装 sudo pip uninstall requests
/usr/lib/python2.7/site-packages/requests/__init__.py:91: RequestsDependencyWarning: urllib3 (1.22) or chardet (2.2.1) doesn't match a supported version!
原文：https://www.cnblogs.com/yhleng/p/9317807.html
