คุณสมบัติของโปรแกรม · การแก้หนึ่งบิตด้วยแฮมมิง

def correct_hamming(word):
    word = list(word)
    if len(word) != 7 or any(type(b) is not int or b not in (0, 1) for b in word):
        raise ValueError("hamming.word")
    syndrome = 0
    for parity in (1, 2, 4):
        value = 0
        for position in range(1, 8):
            if position & parity:
                value ^= word[position-1]
        if value:
            syndrome |= parity
    if syndrome:
        word[syndrome-1] ^= 1
    data = (word[2] << 3) | (word[4] << 2) | (word[5] << 1) | word[6]
    return data, syndrome