Decorators in Python

Decorators are a powerful feature that let you modify or extend the behavior of functions or methods without changing their code.

They are essentially functions that take another function and return a new function – like wrapping a gift with extra features.

Common uses: logging, timing execution, access control, caching, and more.

Functions as First-Class Objects

Python treats functions like any other object – you can pass them around.

Basic Decorator

A decorator is a function that takes a function and returns a wrapped version.

The @ Syntax

The clean way to apply decorators.

Decorators with Parameters

Common Built-in Decorators

• @staticmethod – method doesn't receive self
• @classmethod – method receives class
• @property – method as attribute

Quick Quiz