Netherlands IBAN account number checksum validator

netherlands-iban-acc-number-validate.py

# Netherlands account number algorithm uses this factor table:
# digit | factor
# 1st   | 10
# 2nd   | 9
# ...
# 10th  | 1
# 
# After multiplying digits according to the table, sum of these results must be divisible with 11


def validate(acc):
    f = 10
    total = 0
    for a in acc:
            total += int(a) * f
            f -= 1

    return total % 11 == 0
          

validate("1834239443") # True
validate("1234567890") # False


# Use schwifty module for IBAN validation, however,
# it does not support Netherlands account number validation,
# so validate it seperately with this function