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Python Object-Oriented Python Instant Objects Master Class

Posted by Shyam Gupta
Shyam Gupta
7,757 Points

Even though the laps attribute is inside the __init__ method, it's still erroring out..

Even though the laps attribute is inside the init method, it's still erroring out..

racecar.py 
class RaceCar:

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

1 Answer

taejooncho
taejooncho
Courses Plus Student 3,923 Points

Hi, there!

Your code is so close!

The problem is in this line of your code.

    def __init__(self,color,laps=0,fuel_remaining,**kwargs):

When you write arguments there is an order you must follow. If you have these as arguments you want to write for example self, code, x = 0, *args, **kwargs

First, comes just regular arguments like self or code After that comes arguments that are assigned with value like x = 0 Then, *args comes after that Lastly **kwargs comes at the end.

Consequently, the order for the example I wrote would be

    def __init__(self,  code, x = 0, *args, **kwargs):

You can not mix these orders.

Your **kwargs is at the end which is very good, but your laps = 0 is written before fuel_remaining.

Hope this explanation was helpful, leave a comment if my explanation is confusing.