Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 19

Tell us what’s happening:

I followed the instructions but it’s still not running. Did I miss something?

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 :
    print(digit)
    
    

# 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 19

what is not running? what error do you get?

Welcome to the forum @nkansahmannasseh

The Traceback is giving you some information.

image

It looks like the for loop is not indented, so odd_digits is undefined.

Happy coding