用我自己的仓库
pip config set global.index-url https://mirrors.hetao.me/pypi/simple
pip config set global.trusted-host mirrors.hetao.me
环境变量
export PIP_INDEX_URL=https://mirrors.hetao.me/pypi/simple
export PIP_TRUSTED_HOST=mirrors.hetao.me
pip环境变量参考：
https://pip.pypa.io/en/stable/topics/configuration/#environment-variables