python 代码规范 代码规范 https://github.com/amontalenti/elements-of-python-style/tree/master/zh-cn python最佳实践 https://pythonguidecn.readthedocs.io/zh/latest/ python设计模式 https://github.com/scottming/python-patterns/blob/master/SUMMARY.md