How to validate a credit card number in python luhn algorithm

sure! validating a credit card number using the luhn algorithm involves the following steps:

1. remove any spaces or dashes from the credit card number.
2. starting from the rightmost digit, double the value of every second digit.
3. if the doubled value is greater than 9, subtract 9 from it.
4. add up all the digits in the modified credit card number.
5. if the sum is a multiple of 10, then the credit card number is valid.

here is the python code implementing the luhn algorithm to validate a credit card number:

you can use the `luhn_algorithm` function to validate credit card numbers in your python code. just provide the credit card number as a string input to the function, and it will return `true` if the credit card number is valid according to the luhn algorithm, and `false` otherwise.

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