解决pip和pip3的升级问题

问题：

You are using pip version 8.1.1, however version 18.0 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

pip解决方法：

wget https://bootstrap.pypa.io/get-pip.py

sudo python get-pip.py

即可

 

pip3解决方法

只需要一条命令就可以了.

python3 -m pip install --upgrade pip