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

Tell us what’s happening:

Not sure that I am understanding the question that is being asked.

I added a for loop and I want all digits from the odd_digit list, should I be saying all digit?

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()

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Challenge Information:

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

The loop should be inside the function.

Do you mean inside the

def verify_card_number(card_number):

Am I putting it at the end of the " : " or inside the ( )

It should be inside the verify_card_number function. odd_digits exists only inside that function.

1 Like

To add to what Dario_DC mentioned, you control what block of code is in a function by using indentation.