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Python Object-Oriented Python Instant Objects Master Class

Posted by Taylor Fritz
Taylor Fritz
13,265 Points

Trouble setting the attribute and incrementing by one..

Having trouble with this code challenge and not getting any hints as to what the issue is. Can someone help?

I am supposed to add a 'laps' attribute to the RaceCar class and set it to 0. Then in the method, 'run_lap', I need to increment laps by one every time that method is ran.

I've tried everything and I'm not figuring it out.

TIA!

racecar.py 
class RaceCar:
    def __init__(self, laps=0, color, fuel_remaining, **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):
        fuel_remaining - (self.length * 0.125)
        laps += 1
Taylor Fritz
Taylor Fritz
13,265 Points

I figured it out by looking through some answers on the other instances of this question getting asked. I have no idea what I was actually stumped on but I finally got it to work. Here's the correct code for anyone else who stumbles on this.. 

class RaceCar:
    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):
        self.fuel_remaining -= (length * 0.125)
        self.laps += 1

1 Answer

Micah Taylor
Micah Taylor
1,895 Points
Micah Taylor
Micah Taylor
1,895 Points

laps is defined within init. Because it isn't a global variable it can't be used outside of that function.

Taylor Fritz
Taylor Fritz
13,265 Points

That makes sense but how would I increment that attribute by one when run_lap is called if that attribute is not global? I've tried making defining it globally and still can't get the code to work.