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 trialDaniel Villanueva
12,329 PointsObject Oriented Programming help!!!
Vrroom!
OK, now let's add a method named run_lap. It'll take a length argument. It should reduce the fuel_remaining attribute by length multiplied by 0.125.
Oh, and add a laps attribute to the class, set to 0, and increment it each time the run_lap method is called.
class RaceCar:
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, lenght, laps):
laps = 0
laps += 1
return self.fuel_remaining - lenght*0.125
1 Answer
Shane Smith
4,384 PointsYou're close. You want to set the attribute within the class, not the method. Rather than returning the value of fuel remaining, set it equal to the fuel remaining minus the length times 0.125.
My solution:
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 = self.fuel_remaining - (length * 0.125)
self.laps += 1
Also, be sure to check your spelling of 'length' in the run_lap function