pip安裝PyQt5遇到問題WARNING: You are using pip version 19.2.3, however version 20.2.3 is available.

pip安裝PyQt5遇到問題 標題WARNING: You are using pip version 19.2.3, however version 20.2.3 is available. 如題，按照課程給的教程進行安裝pyqt5， 輸入 pip3 install PyQt5提示如下錯誤。 由於不熟悉命令行，我按照提示輸入python -m pip install --update pip，結

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