WARNING: You are using pip version 20.3.3； however, version 21.3.1 is available. Python安装第三方库失败

WARNING: You are using pip version 20.3.3; however, version 21.3.1 is available.
You should consider upgrading via the 'e:\python\python.exe -m pip install --upgrade pip' command.
出现这个异常是版本过低导致的，可以先查看自己的版本 pip show pip

然后使用python -m pip install -U pip升级

再次安装就没有问题了