Lazy Programming Series – Decorators In Python

Introduction

Decorators are a powerful and versatile tool in Python that allows developers to modify or extend the behavior of functions or methods without changing their actual code. They are commonly used for logging, access control, instrumentation, and caching, among other purposes. Understanding decorators can help you write cleaner, more readable, and more maintainable code.

What are Decorators?

A decorator in Python is a function that takes another function as an argument and extends or alters its behavior. Decorators are applied using the @decorator_name syntax placed above the function definition.

Basic Syntax

Here’s a simple example to illustrate the syntax of decorators:

Output:

In this example:

• my_decorator is a decorator function that takes say_hello as its argument.
• The wrapper function is defined inside my_decorator and adds some behavior before and after the call to say_hello.
• The @my_decorator syntax applies the decorator to the say_hello function.

@SAKSHAM DIXIT