Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 24

Python
1

Tell us what’s happening:

I did follow the instruction and wrote exactly “print(digits)” but it keep saying “You should have print(digits) within your loop” Please help

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]
    for digits in even_digits:
        sum_of_even_digits += int(digits)
    print(digits)

# 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 24

2

Hello.

This is not needed.

3

thank you so much. It works!

4

Let me see the updated version of your code.

5

I’m sorry I forgot to edit the print(even_digits) to print(digits) after erasing it. but it’s all good. thank you so much for your help!

6

Ok. You’re so much welcome.