使用pip 提示更新:
You are using pip version 18.1, however version 20.0.2 is available. You should consider upgrading via the 'python -m pip install --upgrade pip' command.
輸入 python -m pip install --upgrade pip出現問題

這是因為服務器連接超時,使用下方代碼即可解決(因為pip源在國外,所以連起來比較慢,可以改用國內的源)
python -m pip install --upgrade pip -i https://pypi.douban.com/simple

轉自https://uzshare.com/view/818532
