www.github.com.cnpmjs.org
pip install -r requirements.txt --proxy=127.0.0.1:1080
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple some-package
pip install pip -U
pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pip -U
原文:https://www.cnblogs.com/linkreal87/p/13974652.html