What are some examples of decorator patterns in Python?

What are some examples of decorator patterns in Python?

Decorator patterns in Python allow you to modify the behavior of functions or classes. Would you like to see a specific example?

Yes, can you show me a simple function decorator?

Sure! Here's a simple function decorator that logs the execution time of a function:

import time

def timer_decorator(func):
    def wrapper(*args, **kwargs):
        start_time = time.time()
        result = func(*args, **kwargs)
        end_time = time.time()
        print(f"{func.__name__} executed in {end_time - start_time} seconds")
        return result
    return wrapper

@timer_decorator
def my_function():
    time.sleep(1)
    print("Function executed!")

my_function()

That's great! Can you explain how the @timer_decorator works?

The @timer_decorator syntax is a shorthand for applying the timer_decorator to my_function. It replaces my_function with the wrapper function defined inside timer_decorator, allowing you to add extra functionality while keeping the original function's interface.

Can decorators be used with classes too?

Absolutely! Decorators can be applied to class methods and even entire classes. Would you like an example of that?