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

Python
1

Tell us what’s happening:

Use a for loop to iterate over each digit in the odd_digits list. Move your print call from the previous step into the for loop, and change it to print each 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]

    print(odd_digits)

for digit in 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()

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Challenge Information:

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

2

The print call should be found within the ‘for’ loop. Exchange the two code lines. print(odd_digits) has to be indented, as a part of the loop.

The ‘for’ loop is a part of the function - it should be aligned on the left with the rest of the code within verify_card_number(card_number).