Classes in Python

Classes are the foundation of object-oriented programming (OOP) in Python. They let you create your own data types with attributes (data) and methods (functions).

Think of a class as a blueprint for creating objects – like a template for a car with color, speed, and actions like drive() or stop().

Classes make code more organized, reusable, and easier to manage for larger programs.

Defining a Class

Use the class keyword followed by the name (PascalCase convention).

Adding Attributes with __init__

The __init__ method (constructor) runs when you create an object. Use self to access the instance.

Instance Methods

Methods are functions inside a class. The first parameter is always self.

Class vs Instance Attributes

Class attributes are shared by all instances.

Quick Quiz