Explain here, the configuration file can also be replaced by the following url URL
Ali cloud http://mirrors.aliyun.com/pypi/simple/
China University of Science and Technology https://pypi.mirrors.ustc.edu.cn/simple /
watercress (douban) http://pypi.douban.com/simple/
Tsinghua https://pypi.tuna.tsinghua.edu.cn/simple/
University of Science and technology of China http://pypi.mirrors.ustc.edu .cn / simple /
e.g. pip install lxml -i https://pypi.tuna.tsinghua.edu.cn/simple/
Importing domestic image, based on his speed to download, and hope to help you.
2019-11-1819:57:23