Introduction to Python Decorators
Decorators in Python are a powerful tool that allows you to modify the behavior of functions or classes. They provide a way to add functionality to existing code in a clean and readable manner. In this post, we will explore how decorators work, how to create your own decorators, and some practical use cases.
Understanding Decorators
Decorators are functions that take another function and extend its behavior without explicitly modifying it. They are often used in logging, authentication, and monitoring performance.
Creating a Simple Decorator
def my_decorator(func):
def wrapper():
print("Something is happening before the function is called.")
func()
print("Something is happening after the function is called.")
return wrapper
def say_hello():
print("Hello!")
decorated_function = my_decorator(say_hello)
decorated_function()
