You are using pip version 20.1.1; however, version 20.2.2 is available
出现这个警告的意思是,需要更新pip 的版本,使用国内镜像源下载就可以了
把下面的命令复制到命令框里就可以搞定。

python -m pip install --upgrade pip -i https://pypi.douban.com/simple

You are using pip version 20.1.1; however, version 20.2.2 is available
已显示成功安装。

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