Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 35

Python
1

Tell us what’s happening:

Describe your issue in detail here.

Your code so far


# User Editable Region

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)

    sum_of_even_digits = 0
    even_digits = card_number_reversed[1::2]
    for digit in even_digits:
        number = int(digit) * 2
        if number >= 10:
            number = (number // 10) + (number % 10)
        sum_of_even_digits += number
    total = sum_of_odd_digits + sum_of_even_digits
    
    return total % 10 == 0

def main():
    card_number = '4111-1111-4555-1141'
    card_translation = str.maketrans({'-': '', ' ': ''})
    translated_card_number = card_number.translate(card_translation)


        


main()

# User Editable Region

Your browser information:

User Agent is: Mozilla/5.0 (X11; CrOS x86_64 14541.0.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Challenge Information:

Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 35

2

You appear to have created this post without editing the template. Please edit your post to Tell us what’s happening in your own words.

3

Hi, welcome to the forum!
We see you have posted some code but did you have a question?

(You have not filled out the “Tell us what’s happening:” field above)

4

Hi @zavalarelatorsjerry

You deleted the print call from the main function.
The instructions asked you to remove the print call from the verify_card_number function.

Please reset the step to restore the original code Then only modify the code you are asked to. The tests make specific tests in the code. Altering any part of the code you are not asked will fail the tests.

That is step one. Then step two still to go.

Happy coding

1 Like
5

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.