'''
遇到问题没人解答？小编创建了一个Python学习交流QQ群：778463939
寻找有志同道合的小伙伴，互帮互助,群里还有不错的视频学习教程和PDF电子书！
'''
# coding: utf-8

__author__ = "lau.wenbo"

import hashlib,sys

# 分块读MD，速度快

def create_checksum(path):
    fp = open(path)
    checksum = hashlib.md5()
    while True:
        buffer = fp.read(8192)
        if not buffer: break
        checksum.update(buffer)
    fp.close()
    checksum = checksum.digest()
    return checksum