Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Object-Oriented Python Instant Objects Master Class

Try Again

i feel like everything is right but there's something wrong

class RaceCar:

    def __init__(self, color, laps = 10, fuel_remaining, **kwargs):
        self.color = color
        self.laps = laps
        self.fuel_remaining = fuel_remaining

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

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

red_car = RaceCar("red", 50, 0):
RaceCar.laps = 10
red_car.laps = 10

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,029 Points

Hey Kennedy Malonga, a few errors to correct:

  • positional arguments for __init__ (such as fuel_remaining) must be listed before keyword arguments (laps=10)
  • a syntax error and typo "feul_remaining", and attribute reference error (missing self.) here:
        self.fuel_remaining += feul_remaining(length * 0.125)
        # should be
        self.fuel_remaining += (length * 0.125)
        # or 
        self.fuel_remaining = self.fuel_remaining - (length * 0.125)
  • need to increment self.laps instead of decrement the attribute
  • the last three lines (outside of the class definition) should be deleted

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