python -m pip install --upgrade pip 升级不成功问题

 

 

1、使用命令出现

WARNING: You are using pip version 19.3.1; however, version 20.0.2 is available.

You should consider upgrading via the 'python -m pip install --upgrade pip' command.

2、问题解决，这是因为服务器连接超时，使用一下代码即可解决

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