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cgeorge
5,492 PointsWhy do you set attributes in __intit__ and in methods?
In the video Megan set
def init(): self.is_moving = False
Then she modified a method
def stop (self): if self.is_moving: print("The car is stopped") is_moving= False else: print ("The car has stopped")
is_moving is defined in the init so why do we have to define it again in the method.
Thanks for the explanation in advance!
2 Answers
Mitchel Andrews
4,745 PointsHi Cylin,
The init method only occurs once and that's when we create an instance of a class. So in this example, you can think of it as when we create a Car object the car starts off as not moving, hence the self.is_moving = False
So an instance of a Car will always start off with the is_moving attribute as False. Now in our other methods stop() and go() that changes the behavior of our car object so we also need to modify our is_moving variable; that is why you see they get reassigned to True or False values accordingly.
Vincent Zamora
3,872 PointsI maybe wrong but In the init initializes the call which would also include defaults. The setter methods would actually change the values of the attributes.