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

RaceCar laps iterator not passing exercise

To iterate the laps, I add laps=0 to the class itself and in run_lap(), I added self.laps += 1. This works in console, but does not pass the exercise. I was wondering what I am doing wrong.

racecar.py
class RaceCar:
    laps = 0

    def __init__(self, color, fuel_remaining, **kwargs):
        self.color = color
        self.fuel_remaining = fuel_remaining
        for key, value in kwargs.items():
            setattr(self, key, value)

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

2 Answers

Hi Derek,

Your code works ok for me but doesn't pass task 3 of the challenge but I don't think you've reached that yet.

I suggest copying your code and refreshing the page then pasting it back in

Steve.

class RaceCar: laps = 0

def __init__(self, color, fuel_remaining, **kwargs):
    self.laps = 0
    self.color = color
    self.fuel_remaining = fuel_remaining
    for key, value in kwargs.items():
        setattr(self, key, value)

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