#!/usr/bin/python# -*- coding: utf-8 -*-import osdef del_files(path):  for root , dirs, files in os.walk(path):    for name in files:      if name.endswith(".CR2"):        os.remove(os.path.join(root, name))        print ("Delete File: " + os.path.join(root, name))# testif __name__ == "__main__":  path = '/Users/yjatt/Downloads/1104/'  del_files(path)