AttributeError: 'NoneType' object has no attribute 'bytes', python -m pip install --upgrade pip升级解决

python -m pip install --upgrade pip 安装出现报错,上级失败时,两种解决方案

方案一 :

easy_install -U pip

方案二:

python -m pip install -U --force-reinstall pip

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转载自blog.csdn.net/qq_40256654/article/details/85847144