Use the PIP command to switch between different mirror sources

When we use pip Command to install various plug-ins , If you haven't changed the configuration file , The default download source is the foreign image source , So how to use the domestic image source ？

  When using foreign image source, the download speed is generally very slow , Installation often fails

  We can do it in pip Order to follow -i Image source address to specify the download from the image source

pip install PyQt5_tools -i https://pypi.tuna.tsinghua.edu.cn/simple/

among ：https://pypi.tuna.tsinghua.edu.cn/simple/ Is the address of Tsinghua source

Common domestic image sources

• Alibaba cloud http://mirrors.aliyun.com/pypi/simple/
• douban http://pypi.douban.com/simple/
• Tsinghua University https://pypi.tuna.tsinghua.edu.cn/simple/
• University of science and technology of China http://pypi.mirrors.ustc.edu.cn/simple/
• Huazhong University of science and technology http://pypi.hustunique.com/