python -m pip install --upgrade pip

如果再用工具 pip 安装模块的过程中，出现如下提示：

You are using pip version 10.0.1, however version 20.2.2 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.

说明 pip 版本太低，直接按照提示的命令升级即可，如图：