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Python Object-Oriented Python Instant Objects Master Class

Posted by vincent juma
vincent juma
1,159 Points

Hello, everyone.Am caught up with this error on my code and I'm not sure why it's wrong. Kindly help me see it.

I have added a method named run_lap, and it takes a length argument. It should reduce the fuel_remaining attribute by length multiplied by 0.125.

And it should add a laps attribute to the class, set to 0, and increment it each time the run_lap method is called.

But I get this error Bummer: Try again

racecar.py 
class RaceCar:

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

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

    def run_lap(self, length):   
        laps = 0
        laps +=1
        self.fuel_remaining= self.fuel_remaining - (self.length*0.125)

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

You are close. There are 3 mistakes in your current code:

  • need to add parameter laps=0 to __init__ method
  • need to increment the attribute self.laps not "laps" in run_lap method
  • reference to parameter length should be length and not self.length

Post back if you need more help. Good luck!!

vincent juma
vincent juma
1,159 Points

Woow, I do appreciate this.