https://github.com/sag333ar/learn_python
Welcome back to our Python learning series!
In today's lesson, we dive deeper into Object-Oriented Programming (OOP) by learning three essential concepts:
✅ Inheritance
✅ Polymorphism
✅ Encapsulation
These concepts are used in almost every real-world Python application and are fundamental for writing clean, reusable, and maintainable code.
This video is suitable for:
Language: English
✅ What is Inheritance?
✅ Creating Parent and Child Classes
✅ Reusing Code Through Inheritance
✅ Constructor (__init__) in Parent and Child Classes
✅ Calling Parent Class Methods using super()
✅ What is Polymorphism?
✅ Method Overriding in Python
✅ What is Encapsulation?
✅ Creating Private Variables using __
✅ Getter and Setter Methods
✅ Updating Private Variables Safely
To understand OOP concepts, we created:
🚗 A Vehicle class containing:
🚙 A Car class inheriting from Vehicle with an additional property:
Using this example, we learned how to:
Some key takeaways from this video:
👉 Inheritance helps us avoid writing duplicate code.
👉 Polymorphism allows child classes to customize the behavior of parent class methods.
👉 Encapsulation protects important data by exposing only the methods needed to access or modify it.
These are core principles of Object-Oriented Programming and are widely used in software development.
Try these exercises:
✅ Create a Bike class that inherits from Vehicle.
✅ Add a new property such as:
✅ Override the showInfo() method.
✅ Create getter and setter methods for one private variable.
Share your implementation or questions in the comments!
This beginner-friendly Python series is designed to help you learn by writing code, experimenting with examples, and understanding concepts step by step.
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