Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 23

Python
1

Tell us what’s happening:

Hi everyone! I’m unable to figure out what’s the problem whether it’s with the name or the slicing is wrong :frowning:

Your code so far

def verify_card_number(card_number):
    sum_of_odd_digits = 0
    card_number_reversed = card_number[::-1]
    odd_digits = card_number_reversed[::2]

    for digit in odd_digits:
        sum_of_odd_digits += int(digit)
    print(sum_of_odd_digits)


# User Editable Region

        sum_of_even_digits = 0
        even_digits = card_number_reversed[1::2]

# User Editable Region

def main():
    card_number = '4111-1111-4555-1142'
    card_translation = str.maketrans({'-': '', ' ': ''})
    translated_card_number = card_number.translate(card_translation)

    verify_card_number(translated_card_number)

main()

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Challenge Information:

Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 23

2

you have added the two new variables with the wrong indentation, double check what the indentation should be

1 Like
3

thanks alot, i didn’t notice it.