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

Python
1

Tell us what’s happening:

The step is asking me to add a for loop and print odd_digits (a variable) that reverses card_number which is a group of numbers. My question is how I should do the loop.

(Could you explain it in a simple way since I’m in middle school)

Your code so far


# User Editable Region

# User Editable Region

def verify_card_number(card_number):
    sum_of_odd_digits = 0
    card_number_reversed = card_number[::-1]
    for digits in odd_digits():
        odd_digits = card_number_reversed[::2]
        print(digits)

# User Editable Region

    

# 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