python模块——hashlib模块(简单文件摘要算法实现)
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#!/usr/bin/env python # -*- coding:utf-8 -*- __author__ = "loki" # Usage: hashlib模块 import hashlib import time # wrapper function calc length and use time def len_type_tools(res): def wrapper(*args, **kwargs): cur_time = time.time() len_res = len(res(*args, **kwargs)) result = res(*args, **kwargs) end_time = time.time() - cur_time print(‘Primary HASH result length is {0}, use time {1:.2f}‘.format(len_res, end_time)) return result return wrapper def menu_list(): func_list = {} for item in hashlib.__dict__: if str(item).startswith("sha") or str(item).startswith("md5"): func_list[item] = hashlib.__dict__[item] return func_list @len_type_tools def algol(data, num): if num != 1: user_choose = menu_list()[data[1]]() user_choose.update(data[0].encode("utf-8")) return user_choose.hexdigest() user_choose = menu_list()["md5"]() user_choose.update(data[0].encode("utf-8")) return user_choose.hexdigest() def file_read(path): with open(r"{}".format(path), ‘rb‘) as file_info: file_bin = file_info.read() return file_bin def main(): """ .::hashlib small tools::. by: loki 2018-06-25 format: >> <file_path> [algol] algol: md5(default) sha1 sha224 sha256 sha384 sha512 example: >> c:\test.txt sha1 :return hash_value """ print(main.__doc__) file_path = input(‘>>‘).strip() file_path = file_path.split() argument_num = len(file_path) print(algol(file_path, argument_num)) if __name__ == ‘__main__‘: main() time.sleep(15)
小结:
再这个hashlib模块学习中,顺便回顾了下装饰器。也运用了下魔术方法__dict__功能
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