“fa93def41a200b1c7b817835426d7c5139d920d6”上不存在“...doc_cn/design/git@gitcode.net:BaiXuePrincess/Paddle.git”
* use yapf to format all python file * yapf exclude two unittests file for they rely on writing and reading file, and format will break them * disable diff_py_file because too many diff files cause command following failed