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Python Object-Oriented Python Instant Objects Master Class

Posted by dojewqveaq
dojewqveaq
11,393 Points

racecar.py - Why does this code doesn't work?

What am I missing here?

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):
        laps += 1
        fuel_remaining = length * 0.125

2 Answers

Ari Misha
Ari Misha
19,323 Points
Ari Misha
Ari Misha
19,323 Points

Hiya Eric! There are a couple of issues with your code. First off, your "laps" and "fuel_remaining" should be instance variable i.e., replace 'em with "self.laps" and "self.fuel_remaining". Secondly, your "self.fuel_remaining" needs to be "reduced" with the product of "length" and 0.125. I hope it helped. If not, just post back (:

dojewqveaq
dojewqveaq
11,393 Points

Thanks Ari, can you explain why does it need to be an instance variable?

Ari Misha
Ari Misha
19,323 Points
Ari Misha
Ari Misha
19,323 Points

That is coz everytime your instance , or object instantiated on RaceCar class, access the "run_lap" method , the "laps" attribute needs to be incremented and "fuel_remaining" needs to be reduced by "(length * 0.125)", right? (:

dojewqveaq
dojewqveaq
11,393 Points

Got it! Ty