Mac pip按照提示更新没有成功

pip报错，按照提示更新没有成功

You are using pip version 9.0.1, however version 9.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

解决办法：
1、下载pip

https://pypi.python.org/pypi/pip

2、解压安装

sudo python setup.py install

3、查看版本

pip --version

参考：
1. You are using pip version 9.0.1, however version 9.0.3 is available.