Create Parent and Child Classes

00:00 I’ll start with building this class by just taking a quick note. Again, I want an Animal class with three subclasses representing animals.

00:13 First, it’s going to be the Animal class, so I’ll say class Animal

00:19 pass, and then I need three subclasses. I want a Dog that inherits from Animal.

00:29 I’m going to have the same structure, so just going to copy that three times. Second one was a Pig and then a Sheep. Of course, you can model other animals.

00:39 The point is that they all inherit from Animal, which you do with this syntax of parentheses, and then the name of the parent class. It’s also good practice to have two spaces between classes just to make it a little easier to read. We have a parent class Animal, and three child classes, and then let’s make it a little less boring and define an initializer def __init__(), and this takes self. What else?

01:10 I’m going to stay with name and color and assign them to instance attributes. self.name equals name and self.color equals color. With this code, we have a parent class with two attributes so far, and then three child classes that inherit from it. That’s a good start, but how can we distinguish what is a Dog and what is an Animal?

01:38 It could be nice to have an attribute for that. Well, let’s do that in the next lesson.