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

Viktor Kelemen
Viktor Kelemen
3,747 Points

Python, whats wrong with my script? I'm keep getting "Try again!".

I'm learning OOP Python right now, I'm trying to complete this Challenge but I just can't see what I did wrong.

racecar.py
class RaceCar:
    lap = 0

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

    def run_lap(length):
        self.lap++
        self.fuel_remaining = self.fuel_remaining - length * 0.125

1 Answer

Some hints:

  • Try the code in a workspace to get better feedback
  • The attribute is laps with a 's'.
  • ++ isn't used in Python
  • the first parameter of your run_lap() method should be self