正常的pip升级命令:python -m pip install --upgrade pip
升级报错提示:AttributeError: 'NoneType' object has no attribute 'bytes'
更换升级命令:easy_install -U pip
正常的pip升级命令:python -m pip install --upgrade pip
升级报错提示:AttributeError: 'NoneType' object has no attribute 'bytes'
更换升级命令:easy_install -U pip
转载于:https://www.cnblogs.com/gtsnow/p/11097944.html