Id card.

idCard.py

def calcId(digit):
    if not isinstance(digit, int) or len(str(digit)) != 17:
        return False
    table = '10X123456789'
    alpha = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]
    return table[sum([int(x)*a for x, a in zip(str(digit), alpha)]) % 11]
    

def isGoodId(instr):
    if not isinstance(instr, str) or len(instr) != 18:
        return False
    number17 = 0
    try:
        number17 = int(instr([0:17])
    except:
        return False
    return calId(number17) == instr[-1]


print(isGoodId('574642519050305044X'))