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Python Object-Oriented Python Instant Objects Master Class

Shane Smith
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Shane Smith
Python Development Techdegree Student 2,550 Points
Posted by Shane Smith
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Shane Smith
Python Development Techdegree Student 2,550 Points

What am I missing?!?

The preview code function is just saying "bummer try again" and not throwing an error so I am unsure of where my mistake is. Thank you in advance!

racecar.py 
class RaceCar:
    laps = 0

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

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

    def run_lap(self, length):
        self.length = length
        fuel_remaining = fuel_remaining - (self.length * .125)
        laps += 1

1 Answer

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

Hi there, Shane Smith! The issue here is that fuel_remaining is undefined. It doesn't exist in the context of that method. What you're looking for is self.fuel_remaining :smiley: Also, you do not need to make a new attribute named self.length. We're passing in the length to the method so you could do self.fuel_remaining -= length * .125.

Hope this helps! :sparkles:

Shane Smith
seal-mask
.a{fill-rule:evenodd;}techdegree
Shane Smith
Python Development Techdegree Student 2,550 Points
Shane Smith
.a{fill-rule:evenodd;}techdegree
Shane Smith
Python Development Techdegree Student 2,550 Points

Thank you for the assistance Jennifer but I am still not there...

this is what I have now 

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 * .125
        laps += 1