ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out.

problem: pip install selenium

出现错误：ReadTimeoutError: HTTPSConnectionPool(host='pypi.python.org', port=443): Read timed out.

解决办法：换源，如下

pip install selenium -i https://pypi.douban.com/simple

https://blog.csdn.net/niutianzhuang/article/details/79593796