I dont know whats wrong probably a logical mistake but i need help! Task 2-3 master-class

Hi Jimvichos,

Your problem is with the laps attribute.

The challenge wants you to add a laps attribute to the class and set it to zero. You've done this in the initialiser, which is totally valid but the way you've done this has changed the initialiser's signature.

By adding laps as a parameter to your initialiser, it is now only possible to create a RaceCar instance by providing a laps value (even though that value is ignored in the body of the initialiser where you just set it to zero).

Before you made this change, you would create a RaceCar as follows:

RaceCar(color='red', fuel_remaining=2)

But now, that same instantiation will crash because you haven't supplied a laps value.

If you want to make laps an optional parameter in your initialiser you can give it a default value and then set the instance's attribute from the initialiser's body:

def __init__(self, color, fuel_remaining, laps=0, **kwargs):
        self.color = color
        self.fuel_remaining = fuel_remaining
        self.laps = laps

        for key, value in kwargs.items():
            setattr(self, key, value)

This will enable you to create your RaceCar just like you could before:

RaceCar(color='red', fuel_remaining=2)

Will make a new red car with zero laps on the clock. But leave you the possibility of dropping in a new car partway through the race:

RaceCar(color='yellow', fuel_remaining=2, laps=5)

Hope that clears everything up.

Cheers

Alex