一、推荐安装Anaconda
官方介绍：Anaconda is a completely free Python distribution (including for commercial use and redistribution). It includes more than 400 of the most popular Python packages for science, math, engineering, and data analysis.
下载页面：https://www.continuum.io/downloads
Python的有些模块在单独安装时可能非常麻烦，A
