python-pip升级报错- AttributeError: 'NoneType' object has no attribute 'bytes

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

posted @ 2019-06-27 16:37  yanweimin  阅读(872)  评论(0)    收藏  举报