estudo validação DNI peruano

dni_peru.py

def dni_validator_1(dni):

    multiplos = '32765432'
    numbers = list('67890112345')
    letters = list('KABCDEFGHIJ')

    dni = list(dni)
    control = dni.pop()

    suma = sum(int(char) * int(mul) for mul, char in zip(multiplos, dni))

    key = 11 - (suma % 11)
    key %= 11

    return (numbers if control.isdigit() else letters)[key] == control

def dni_validator_2(dni):
    if len(dni) != 9:
        return False

    dni = list(dni)
    control = dni.pop()

    getval = lambda c: ord(c) - ord('0' if control.isdigit() else 'A')

    m = [7,3,1]
    n = sum(getval(c) * m[i % 3] for i, c in enumerate(dni))

    return n % 10 == getval(control)