Hi Terranovafel, Welcome to Codewars!

Looking at your attempted solution, you basically have the right approach.

However, note that the input object is passed as an argument to a function (named total_bytes in this kata) and you should return the result from there.

You can also read here on how to write a solution: https://docs.codewars.com/training/training-example#writing-a-solution

Initial setup:

# return the total byte size of the object. 
def total_bytes(obj):
    pass