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#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
def 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))
# test
if __name__ == "__main__":
    path = '/Users/yjatt/Downloads/1104/'
    del_files(path)