os.path.splitex()

用法： os.path.splitext(“文件路径”)    分离文件名与扩展名；默认返回(fname,fextension)元组，可做分片操作

import os
path_01='E:\STH\Foobar2000\install.log'
path_02='E:\STH\Foobar2000'
res_01=os.path.splitext(path_01)
res_02=os.path.splitext(path_02)
print(root_01)
print(root_02)
('E:\\STH\\Foobar2000\\install', '.log')
('E:\\STH\\Foobar2000', '')