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 takessay_hello
as its argument.- The
wrapper
function is defined insidemy_decorator
and adds some behavior before and after the call tosay_hello
. - The
@my_decorator
syntax applies the decorator to thesay_hello
function.
@SAKSHAM DIXIT