10 examples of 'sum of digits of a number in python' in Python

45
def sum_digits(num):
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    return sum(map(int, list(str(num))))

30
def is_even_sum_of_digits(number):
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    lista = list(str(number))
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    lista = map(int, lista)
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    sum = reduce(operator.add, lista)
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    if sum % 2 == 0:
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        return True
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    return False

221
def digit_count(x):
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    return sum(c.isdigit() for c in x)

48
def calc_check_digit(number):
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    """Calculate the check digit. The number passed should not have the
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    check digit included."""
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    weights = (21, 19, 17, 13, 11, 9, 7, 3, 1)
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    return str(sum(w * int(n) for w, n in zip(weights, number)) % 10)

56
def calc_check_digit(number):
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    """Calculate the check digits for the number."""
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    return str(sum(int(n) * (7 - i) for i, n in enumerate(number[:6])) % 10)

54
def calc_check_digit(number):
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    """Calculate the check digit for personal codes. The number passed
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    should not have the check digit included."""
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    # note that this algorithm has not been confirmed by an independent source
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    weights = (2, 7, 9, 1, 4, 6, 3, 5, 8, 2, 7, 9)
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    check = sum(w * int(n) for w, n in zip(weights, number)) % 11
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    return '1' if check == 10 else str(check)

84
def _check_digit(number):
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    """Calculate a single check digit on the provided part of the number."""
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    weights = (13, 15, 12, 5, 4, 17, 9, 21, 3, 7, 1)
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    s = sum(w * (int(n) if n.isdigit() else alphabet.find(n) + 1)
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            for w, n in zip(weights, number))
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    return 'MQWERTYUIOPASDFGHJKLBZX'[s % 23]

24
def digits_of(n):
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    return [int(d) for d in str(n)]

110
def calc_check_digit(number):
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    """Calculate the extra digit that should be appended to the number to
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    make it a valid number."""
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    return str(_multiplication_table[checksum(str(number) + '0')].index(0))

71
def calc_check_digit(number):
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    """Calculate the check digit. The number passed should have the check
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    digit included."""
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    checksum = (1 - 2 * int(number[:-1], 13)) % 11
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    return 'X' if checksum == 10 else str(checksum)