Welcome to Day 7 of your Python learning journey! This lesson focused on two important Object-Oriented Programming (OOP) concepts: Inheritance and Polymorphism.
You explored how classes can inherit properties and methods from other classes, and how multiple classes can share a common interface through polymorphism.
Day7/
└── day7.py # Python file demonstrating inheritance and polymorphism
Click here to view the Day 7 code
- Creating a parent class with common attributes/methods.
- Extending the parent class in a child class.
- Overriding methods in the child class.
- Real-life analogy: Animal → Dog, Vehicle → FourWheeler.
- Creating a common interface (e.g.,
.speak()or.move()) that multiple classes can implement. - Passing different objects to the same function and getting different behavior.
- Real-life analogy: Different vehicles move differently, different animals make different sounds.
✔️ Understanding parent-child class relationships. ✔️ Overriding methods to change behavior in child classes. ✔️ Writing functions that work with multiple object types. ✔️ Applying OOP concepts to real-world examples.
- Always call
super().__init__()when you need to initialize the parent class. - Use inheritance for shared behavior, not just to avoid retyping code.
- Polymorphism helps make your code more flexible and extensible.
You now have the tools to model complex systems using OOP principles. Next, try combining inheritance and polymorphism to design a mini-application — for example, a simulation with different types of vehicles or animals interacting in the same program.