Welcome to the fourth installment of our Python 3 Deep Dive series, where we explore the depths of the Python programming language. In this article, we'll dive into the world of Object-Oriented Programming (OOP) in Python 3. OOP is a fundamental concept in programming that allows you to create reusable code, model real-world objects, and write more maintainable and efficient software. What is Object-Oriented Programming (OOP)? Object-Oriented Programming (OOP) is a programming paradigm that revolves around the concept of objects and classes. In OOP, a program is designed as a collection of objects that interact with each other to achieve a specific goal. Each object represents a real-world entity, such as a car, a person, or a bank account, and has its own set of attributes (data) and methods (functions). Classes and Objects in Python 3 In Python 3, a class is a template that defines the properties and behavior of an object. A class is essentially a blueprint or a template that defines the characteristics of an object. An object, on the other hand, is an instance of a class, which has its own set of attributes and methods.
class Square(Rectangle): def __init__(self, side_length): super().__init__(side_length, side_length) python 3 deep dive part 4 oop
def get_balance(self): return self.__balance Welcome to the fourth installment of our Python
You can access the attributes and methods of the object using dot notation, like this: What is Object-Oriented Programming (OOP)
print(my_car.make) # Output: Toyota my_car.honk() # Output: Honk honk! Inheritance is a fundamental concept in OOP that allows one class to inherit the attributes and methods of another class. The class that is being inherited from is called the parent or superclass, and the class that is doing the inheriting is called the child or subclass.
The ElectricCar class also has its own attribute battery_size and method charge . Polymorphism is the ability of an object to take on multiple forms. In Python 3, polymorphism can be achieved through method overriding or method overloading.
Here's an example of inheritance in Python 3: