Learn How to Work with Numbers and Strings by Implementing the Luhn Algorithm - Step 10

Python
1

Tell us what’s happening:

I have this error message: “You should have card_number_reversed = card_number[0:4] within the verify_card_number function”

What am I doing wrong?

Your code so far


# User Editable Region

def verify_card_number(card_number):
    sum_of_odd_digits = 0
    card_number_reserved = card_number[0:4]

# User Editable Region

def main():
    card_number = '4111-1111-4555-1142'
    card_translation = str.maketrans({'-': '', ' ': ''})
    translated_card_number = card_number.translate(card_translation)

    print(translated_card_number)

    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 10

2

You typoed reversed vs reserved. It can help to copy/paste variable names to avoid this

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