今天突然遇到这个异常,先贴两个地址,待有时间写博客
https://www.jianshu.com/p/fea6e0a0cc14
https://makina-corpus.com/blog/metier/2014/python-tutorial-understanding-python-mro-class-search-path
python 之 MRO 异常
原文：https://www.cnblogs.com/ywhyme/p/9396990.html
