利用 Python 计算字符串或者文件的 md5 值

计算字符串 md5

import hashlib

def get_md5(s):
    return hashlib.md5(s).hexdigest()

计算文件 md5

import hashlib

def get_file_md5(file_name):
    with open(file_name, 'rb') as fp:
        data = fp.read()
    return hashlib.md5(data).hexdigest()

计算大文件 md5

import hashlib

def get_large_file_md5(filename, blocksize=4096):
    hash = hashlib.md5()
    with open(filename, "r+b") as f:
        for block in iter(lambda: f.read(blocksize), ""):
            hash.update(block)
    return hash.hexdigest()