pip config set global.index-url https://mirrors.aliyun.com/pypi/simple
pip config set install.trusted-host https://pypi.tuna.aliyun.com/pypi/simple
python -m pip install pip -U
pip config set global.index-url https://mirrors.aliyun.com/pypi/simple
pip config set install.trusted-host https://pypi.tuna.aliyun.com/pypi/simple
python -m pip install pip -U
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