Object-Oriented Programming in Python

Object-Oriented Programming in Python: Model Real-World Things

Object-oriented programming (OOP) helps you represent objects and their behavior using classes and instances.

What you learn

• how to define a class
• how to create objects
• how to use methods to encapsulate behavior

Example

class Product:
    def __init__(self, name, price):
        self.name = name
        self.price = price

    def display(self):
        print(f"Product: {self.name}, Price: {self.price}")

book = Product("Python Guide", 45.0)
pen = Product("Notebook", 12.5)
book.display()
pen.display()

Real-world angle

Classes model entities like products, users, orders, and invoices. OOP makes it easier to extend behavior later.

Why this matters

This is the foundation for many Python frameworks and applications, from web services to automation libraries.

Next

Use OOP with modules and packages to build larger, maintainable systems.