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August 29, 2015 14:17
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VALID_LENGTHS = dict() | |
for s in open("is_valid_iban_data.txt").read().split("\n"): | |
VALID_LENGTHS[s[:2]] = int(s[3:]) | |
def is_valid_iban(string): | |
iban = string.replace(" ", "").replace("-", "").upper() | |
if len(iban) == VALID_LENGTHS[iban[:2]]: | |
inverted_iban = iban[4:] + iban[:4] | |
number = "" | |
for c in inverted_iban: | |
if "A" <= c <= "Z": | |
number += str(ord(c)-55) | |
elif c in "0123456789": | |
number += c | |
else: | |
return False | |
return int(number) % 97 == 1 |
Oui, ça marche, par contre du coup ta batterie de tests est un poil maladroite. Tu peux éviter de tester deux fois la même expression je pense ;)
Oui, c'est ça!
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Pour bien faire, il faudrait que j'ajoute un test où ta version valide alors que l'IBAN contient un mauvais caractère.