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Python Object-Oriented Python Instant Objects Master Class

Stuck on the incrementation of laps when run_lap method is called. No idea how to proceed further.

I tried the code until the point when I create the run_lap method and it works. I have trouble to proceed further with the laps attribute I just have no clue from which end to grab it

racecar.py
class RaceCar:

    laps = 0

    def __init__(self, color, fuel_remaining, **kwargs):

        self.color = color
        self.fuel_remaining = fuel_remaining

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

    def run_lap (self, length):
        return self.fuel_remaining - length*0.125

2 Answers

Clayton Perszyk
MOD
Clayton Perszyk
Treehouse Moderator 48,850 Points

Hey Artur,

You don't need to return anything from run_lap , but you will need to reassign the updated value back to self.fuel_remaining. Also, laps should be an instance variable; currently it is a Class variable, and as such will apply to all instances of the Class. Other than that, looks good!

Thanks Clayton, I adjusted my code and it works now.

To clarify what do you mean by "Also, laps should be an instance variable; currently it is a Class variable, and as such will apply to all instances of the Class."? How does laps apply to all instances and what is the difference if I include laps to class (as it is in the piece of code above) or I put laps under init?