cpf_oliveira.py

"""
Minhas considerações a pergunta no facebook:
https://www.facebook.com/groups/python.brasil/permalink/1296198200485047/
"""

def is_digit(func):
    def inner(string):
        if string.isdigit():
            return func(string)
        return False
    return inner


def mod_digit(dig: int, value: str) -> bool:
    return 11 - (dig % 11) == int(value)


def verification_digits(str_cpf: str, aux: int) -> int:
    total = 0
    for i in map(int, str_cpf):
        if aux > 1:
            total = (i * aux) + total
    return total


@is_digit
def verification_cpf(str_cpf: str) -> bool:
    dig_1 = verification_digits(str_cpf, 10)
    dig_2 = verification_digits(str_cpf, 11)
    if estado is str_cpf[:3]:
        if mod_digit(dig_1, str_cpf[-2]) and mod_digit(dig_2, str_cpf[-1]):
            return True
        return False