Python 图形库

1. 总体介绍

http://www.cnblogs.com/Vito2008/p/5264291.html

2.pygal

http://rfyiamcool.blog.51cto.com/1030776/1378400/

http://www.open-open.com/lib/view/open1408937723338.html

http://www.pygal.org/en/latest/documentation/types/bar.html