Python Inheritance
Tutorial on Python Inheritance
Welcome to codeswithpankaj.com! In this tutorial, we will dive deep into the concept of inheritance in Python. We'll explore what inheritance is, its types, and how to implement it in Python with detailed explanations and examples.
Table of Contents
Introduction to Inheritance
Benefits of Inheritance
Types of Inheritance
Single Inheritance
Multiple Inheritance
Multilevel Inheritance
Hierarchical Inheritance
Hybrid Inheritance
Base and Derived Classes
Method Overriding
The
super()
FunctionInheritance and
__init__
MethodPractical Examples
Summary
1. Introduction to Inheritance
What is Inheritance?
Inheritance is a fundamental concept in object-oriented programming that allows a class to inherit attributes and methods from another class. The class that inherits is called the derived class or child class, while the class being inherited from is called the base class or parent class.
Why Use Inheritance?
Code Reusability: Inheritance promotes code reuse by allowing new classes to use the properties and methods of existing classes.
Maintainability: It helps in maintaining the code by minimizing redundancy.
Extensibility: New functionality can be easily added to an existing class without modifying it.
2. Benefits of Inheritance
Reusability: You can reuse code from the base class in the derived class.
Improved Code Organization: It helps in organizing code into a hierarchical structure.
Polymorphism: Inheritance allows for polymorphic behavior, where a method can have different implementations in different classes.
3. Types of Inheritance
Single Inheritance
Single inheritance involves a single base class and a single derived class.
Multiple Inheritance
Multiple inheritance involves multiple base classes and a single derived class.
Multilevel Inheritance
Multilevel inheritance involves a chain of inheritance.
Hierarchical Inheritance
Hierarchical inheritance involves multiple derived classes inheriting from a single base class.
Hybrid Inheritance
Hybrid inheritance is a combination of two or more types of inheritance.
4. Base and Derived Classes
Base Class
The base class is the class being inherited from.
Derived Class
The derived class inherits from the base class.
5. Method Overriding
Method overriding allows a derived class to provide a specific implementation of a method that is already defined in its base class.
6. The super()
Function
super()
FunctionThe super()
function is used to call a method from the base class.
7. Inheritance and __init__
Method
__init__
MethodWhen you initialize an instance of a derived class, the __init__
method of the base class is not called automatically. You must call it explicitly.
8. Practical Examples
Example 1: Inheritance in Real Life
Example 2: Polymorphism with Inheritance
9. Summary
In this tutorial, we covered the concept of inheritance in Python, its benefits, and different types. We also explored method overriding, the super()
function, and practical examples to understand inheritance better. With inheritance, you can create more organized, maintainable, and reusable code.
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This tutorial provides a comprehensive overview of Python inheritance, detailing each topic and subtopic with examples and explanations. For more such tutorials, keep following codeswithpankaj.com!
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