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

报错:WARNING: You are using pip version 19.2.3, however version 20.0.2 is available. You should consider upgrading via the ‘python -m pip install –upgrade pip’ command. 原因:pip版本太低不合适,需要更新升级。 方法一:输入系统提示的更新命令: python -m pip install –upgrade pip 如果还是报错,用方法二。 方法二: python -m pip install -U pip 如果方法二还没解决,用绝