Gain insights into writing cleaner, modular, and scalable Python code through Object-Oriented Programming. Dive into inheritance, polymorphism, and more with coding challenges and illustrations.

cpp17.tar.gz

Learn to write cleaner, more modular, and more scaleable code in Python by gaining a master of Object Oriented Programming (OOP). 

You'll start with the basics of object oriented programming and build up to more advanced concepts such as inheritance, information hiding, and polymorphism. Along the way you'll learn how each concept applies to Python in particular, as well as how various Python features make it particularly convenient for OOP.

This course is filled with hands-on coding challenges, playgrounds, snippets, and illustrations to keep things interactive.

Learn Object-Oriented Programming in Python

class Animal:
    def __init__(self, name, sound):
        self.name = name
        self.sound = sound

    def Animal_details(self):
        print("Name:", self.name)
        print("Sound:", self.sound)


class Dog(Animal):
    def __init__(self, name, sound, family):
        super().__init__(name, sound)
        self.family = family

    def Animal_details(self):
        super().Animal_details()
        print("Family:", self.family)


class Sheep(Animal):
    def __init__(self, name, sound, color):
        super().__init__(name, sound)
        self.color = color

    def Animal_details(self):
        super().Animal_details()
        print("Color:", self.color)


d = Dog("Pongo", "Woof Woof", "Husky")
d.Animal_details()
print("")
s = Sheep("Billy", "Baa Baa", "White")
s.Animal_details()


solution

# Explanation
* We implemented an `Animal` class, which has `name` and `sound` *properties*, and a *method*, `Animal_details()`, which is overridden in its child classes.

* Then, we implemented the `Dog` and `Sheep` classes, which are inherited from the `Animal` class.

* `Dog` has an additional property, `family`, and the overridden method, `Animal_details()`. This method calls the parent method using the `super()` function and also prints the `family` property.

* `Sheep` has an additional property, `color`, and the overridden method, `Animal_details()`. This method calls the parent method using the `super()` function and also prints the `color` property.  

* We created and initialized `Dog` and `Sheep` objects and printed their traits by calling their respective methods.


This lesson provides a solution review for the `Implement an Animal Class` challenge.


Introduction to Object-Oriented Programming

Classes and Objects

Information Hiding

Exam 1

Inheritance

Polymorphism

Object Relationships

Exam 2

Solution Review 2: Implement an Animal Class

Solution