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这就是需要更新pip的提示

进入到（或者配置环境变量就无所谓了）python命令安装目录下执行

(venv) D:\python\code>easy_install pip###出现下面安装更新信息Searching for pipReading https://pypi.org/simple/pip/Downloading https://files.pythonhosted.org/packages/54/0c/d01aa759fdc501a58f431eb594a17495f15b88da142ce14b5845662c13f3/pip-20.0.2-py2.py3-none-any.whl#sha256=4ae14a42d8adba3205ebeb38aa68cfc0b6c346e1ae2e699a0b3bad4da19cef5cBest match: pip 20.0.2Processing pip-20.0.2-py2.py3-none-any.whlInstalling pip-20.0.2-py2.py3-none-any.whl to d:\python\code\venv\lib\site-packagesAdding pip 20.0.2 to easy-install.pth fileInstalling pip-script.py script to D:\python\code\venv\ScriptsInstalling pip.exe script to D:\python\code\venv\ScriptsInstalling pip3-script.py script to D:\python\code\venv\ScriptsInstalling pip3.exe script to D:\python\code\venv\ScriptsInstalling pip3.8-script.py script to D:\python\code\venv\ScriptsInstalling pip3.8.exe script to D:\python\code\venv\ScriptsInstalled d:\python\code\venv\lib\site-packages\pip-20.0.2-py3.8.eggProcessing dependencies for pipFinished processing dependencies for pip###结束

再次执行即可

(venv) D:\python\code>pip install openpyxlRequirement already satisfied: openpyxl in d:\python\code\venv\lib\site-packages (3.0.3)Requirement already satisfied: jdcal in d:\python\code\venv\lib\site-packages (from openpyxl) (1.4.1)Requirement already satisfied: et_xmlfile in d:\python\code\venv\lib\site-packages (from openpyxl) (1.0.1)

更新了以下文件

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