w3cschool
https://www.w3cschool.cn/python/
菜鸟教程(支持在线编程)
http://www.runoob.com/python/python-tutorial.html
廖雪峰的博客
https://www.liaoxuefeng.com/wiki/0014316089557264a6b348958f449949df42a6d3a2e542c000
python官网
https://docs.python.org
python中文文档(更新滞后)
http://docs.pythontab.com/python/python3.4/index.html