我目前已经安装了pip 8.1.2.
所以我想将它升级到最新版本(9.0.1)并执行:
sudo pip install --upgrade pip
Collecting pip
Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)
100% |????????????????????????????????| 1.3MB 846kB/s
Installing collected packages: pip
Found existing installation: pip 8.1.2
Not uninstalling pip at /usr/lib/python2.7/dist-packages, outside environment /usr
Successfully installed pip-8.1.2
You are using pip version 8.1.2, however version 9.0.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
它似乎正确下载9.0.1但它拒绝卸载现有安装(8.1.2)
然后最后它建议我使用我已经提供的相同的指令进行升级!
我做错了吗？