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In the world of Python, decorators are powerful tools that can transform the way you write and debug your code. These nifty functions can add extra functionality to your existing code without modifying its core structure.
In this article, we’ll explore the world of decorators and how they can simplify your debugging process.
Understanding Decorators
Decorators are essentially functions that wrap other functions, adding extra capabilities to them. They allow you to modify the behavior of a function without changing its source code. This makes them incredibly useful for tasks like logging, caching, and authentication, among other things. To create a decorator, you define a function that takes a function as an argument, adds some functionality to it, and then returns the modified function. Here’s a simple example:
def uppercase(func):
def wrapper(*args, **kwargs):
result = func(*args, **kwargs)
return result.upper()
return wrapper
@uppercase
def say_hello(name):
return f"Hello, {name}!"
print(say_hello("alice")) # Output: HELLO, ALICE!