Валидация ИИН/БИН Республики Казахстан

iin_validation.py

import re
from operator import add, mul
from functools import reduce
from typing import List


def multiply(iin: str, weights: List[int]) -> int:
    result = reduce(
        add,
        map(lambda i: mul(*i), zip(map(int, iin), weights))
    )
    return result


def validate_iin(iin: str) -> bool:
    if not re.match(r'[0-9]{12}', iin):
        return False
    w1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
    w2 = [3, 4, 5, 6, 7, 8, 9, 10, 11, 1, 2]
    check_sum = multiply(iin, w1) % 11
    if check_sum == 10:
        check_sum = multiply(iin, w2) % 11
    if check_sum != int(iin[-1]):
        return False
    return True