What is a Decorator in Python?
A decorator in Python is a design pattern that allows we to add new functionality to an existing object or function without modifying its structure.
It’s essentially a function that takes another function as an argument and returns a new function with added functionality.
We can think of it as a way to wrap additional logic around an existing function, such as logging, authentication, or caching, by using the @decorator_name syntax.
Decorators are usually implemented as functions (or classes) that take another function as an argument, extend its behavior, and return a new function with the extended behavior.
Why Do We Need Decorators?
Decorators are needed when we want to add functionality to an existing function in a reusable and clean way.