Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Object-Oriented Python Instant Objects Master Class

Posted by Nick raut
.a{fill-rule:evenodd;}techdegree
Nick raut
Python Development Techdegree Student 971 Points

Why is it showing Try again?

I don't understand my mistake regarding this laps and fuel_remaining.

racecar.py 
class RaceCar:
    laps = 0

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

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,720 Points
Jeff Muday
Jeff Muday
Treehouse Moderator 28,720 Points

You're very close. A return is meant to return the value of an expression and terminate execution of the current function/method.

So the only change you need to make is to NOT use any return statements in run_lap.

Also, pay close attention to part 3 of the challenge, it will require one more change to your code, but you got this far so I know you can handle it!

Good luck with Python, it is a fun journey!