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CNPJ Validator
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""" | |
Validador de CNPJ criado em Python. | |
Por Murilo Akita | |
Github: https://github.com/MuriloAkita | |
""" | |
from re import findall | |
def valida_cnpj(cnpj): | |
multiplicador = [5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2] | |
novo_cnpj = cnpj | |
while len(novo_cnpj) != 14: | |
summation = 0 | |
for x, y in enumerate(multiplicador): | |
summation += int(novo_cnpj[x]) * y | |
if (11 - (summation % 11)) > 9: | |
novo_cnpj += str(0) | |
else: | |
digit = 11 - (summation % 11) | |
novo_cnpj += str(digit) | |
multiplicador.insert(0, 6) | |
else: | |
return novo_cnpj | |
while True: | |
input_cnpj = input("Digite um CNPJ (00.000.000/0000-00): ") | |
only_numbers_cnpj = ''.join(findall("\d+", input_cnpj)) | |
if len(only_numbers_cnpj) != 14: | |
print('O CNPJ deve conter 14 números, digite novamente.') | |
continue | |
if valida_cnpj(only_numbers_cnpj[:-2]) == only_numbers_cnpj: | |
print(f'O CNPJ: {input_cnpj} é VÁLIDO!') | |
else: | |
print(f'O CNPJ: {input_cnpj} é INVÁLIDO!') |
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