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

Python
1

Tell us what’s happening:

Can someone help explain what is wrong and what I need to do to fix it?

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(odd_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 19

2

Welcome to the forum @DrWumbo

This is what the error message is says:
image

Here’s your code.

Happy coding

3

It did not work, I don’t think thats the solution

4

Please share your updated code

5 
for digit in odd_digits:
    print(digit)
6

This is correct.

Is it indented to be part of the function?

7

Yes it is, I am puzzled

8

The for loop doesn’t seem indented to be part of the function.

9

Can you paste the code for the full function?

10 
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(odd_digits)
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()
11

Hi @DrWumbo

The error message:
image

Your code:

Your code is currently printing only the odd digits.
The instruction asks you to print each digit.

Happy coding

12

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