官方文档: PEP 8 : Style Guide for Python Code
部分翻译: http://www.blogjava.net/lincode/archive/2011/02/02/343859.html
PEP8 中文版:(上)https://python.freelycode.com/contribution/detail/47
(中)https://python.freelycode.com/contribution/detail/48
(下)https://python.freelycode.com/contribution/detail/49