Python Polymorphism

1. What is Polymorphism?

Polymorphism means many forms.

In simple words:
👉 Same method name
👉 Different behavior
👉 Works with different objects

2. Real-Life Example

Think about the word “run” 🏃

• A person runs

• A machine runs

• A program runs

Same word, different meaning.

3. Polymorphism with Methods

Example

4. Polymorphism with Inheritance

Child class changes parent method.

Example

5. Polymorphism with Functions

Example

👉 Same function works with numbers and strings.

6. Polymorphism with Built-in Functions

Example

7. Polymorphism Using Operator Overloading

Example

👉 + works differently for numbers and strings.

8. Polymorphism with isinstance()

Example

9. Why Use Polymorphism?

✔ Flexible code
✔ Easy to extend
✔ Less code
✔ Works well with inheritance

10. Common Beginner Mistakes

❌ Thinking Methods Must Be Same Class

👉 Any class with same method name works.

❌ Forgetting Method Name Must Match

❌ Different names.

11. Simple Practice Examples

Example 1: Shape Area

Example 2: Vehicle

Example 3: Greeting

12. Summary (Python Polymorphism)

✔ Polymorphism means many forms
✔ Same method name, different behavior
✔ Works with inheritance
✔ Makes code flexible
✔ Important OOP concept

📘 Perfect for Beginner eBook

This chapter is ideal for:

• Python beginner books

• School & college students

• Self-learners

If you want next, I can write:

• Encapsulation

• Abstraction

• Operator Overloading

• Mini OOP Projects

Just tell me 😊