Python Code Challenge 2 of 3 in Object -Oriented

Question

Hey guys, have been at this for some time and cannot seem to see my problem. Thanks for helping, much appreciated.

Challenge Task 3 of 3

Great! One last thing. In Python, attributes defined on the class, but not an instance, are universal. So if you change the value of the attribute, any instance that doesn't have it set explicitly will have its value changed, too! For example, right now, if we made a RaceCar instance named red_car, then did RaceCar.laps = 10, red_car.laps would be 10! To prevent this, be sure to set the laps attribute inside of your init method (it doesn't have to be a keyword argument, though). If you already did it, just hit that "run" button and you're good to go!

racecar.py

class RaceCar:
    laps=0
    def __init__(self, color, fuel_remaining, laps=0, **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 * 0.125)
        self.laps += 1

Answer 1 · 2017-05-31T20:28:50Z

May 31, 2017 8:28pm

laps does not need to be an argument for the method, and at this point you are passing the argument but not doing anything with it. Just set it right below the line for fuel_remaining.

Answer 2 · 2017-07-17T14:47:31Z

July 17, 2017 2:47pm

class RaceCar:
    def __init__(self, color, fuel_remaining, **kwargs):
        self.color = color
        self.fuel_remaining = fuel_remaining
        self.laps = laps = 0
        for x, y in kwargs.items():
            setattr(self, x, y)

    def run_lap(self, length):
        self.fuel_remaining -= length * 0.125
        self.laps += 1
        ```

this worked for me

Answer 3 · 2020-02-18T10:12:13Z

February 18, 2020 10:12am

This one worked for me

Class RaceCar(): def init(self, color, fuel_remaining, **kwargs): self.color = color self.fuel_remaining = fuel_remaining self.laps = 0

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

def run_lap(self, length):
    self.fuel_remaining -= length * 0.125
    self.laps += 1

Welcome to the Treehouse Community

Looking to learn something new?

Thomas Beaudry

Thomas Beaudry

Python Code Challenge 2 of 3 in Object -Oriented

3 Answers

Evan Trimby

Evan Trimby

Zach Savage

Zach Savage

Kudakwashe Moyo

Kudakwashe Moyo