What is a Decorator in Python? | Python Tutorial 🐍🎨

What Is a Decorator in Python? | Master Python with CODiiN 🐍💻
👉 Welcome back to the CODiiN channel! In this video, we will dive into the fascinating world of decorators in Python and understand how they can enhance the functionality of your functions and methods.

📚 What Is a Decorator?
A decorator in Python is a design pattern that allows you to add new functionality to an existing object without modifying its structure. It is essentially a function that takes another function as an argument and extends its behavior without explicitly changing it.

🛠️ Key Characteristics of Decorators
In this tutorial, we will cover:

Function as First-Class Citizens:

In Python, functions can be passed as arguments, allowing decorators to work seamlessly.
Wrapper Functions:

Decorators typically define a nested function (wrapper) that modifies or enhances the original function's behavior.
Chaining Decorators:

You can apply multiple decorators to a single function, layering their functionalities.

💡 Why Are Decorators Important?
Understanding decorators is crucial for:

Implementing cross-cutting concerns like logging, authentication, and input validation.
Enhancing code readability and maintainability by separating concerns.
Creating reusable and composable code that can be applied across multiple functions.

📥 What You Will Learn
By the end of this video, you will:

Understand the definition and structure of decorators.
Know how to create and apply decorators with practical examples.
Recognize scenarios where decorators can be effectively utilized in your Python projects.

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