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8 lines
366 B
Python
8 lines
366 B
Python
class Luhn(object):
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def __init__(self, card_num):
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self.card_num = ''.join(filter(lambda x : x in '0123456789', card_num))
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def valid(self):
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temp = [int(num[1]) * 2 if (num[0]+1) % 2 == 0 else int(num[1]) for num in enumerate(self.card_num[::-1])]
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temp = [num - 9 if num > 9 else num for num in temp]
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return sum(temp) % 10 == 0 |