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What are the advantages of using Python decorators?

Decorators allow you to modify or enhance functions or methods without changing their code. They can be used for logging, access control, and performance measurement.

Python decorators are a powerful tool that allows you to modify or enhance the behavior of functions or methods without altering their core implementation. They are implemented as higher-order functions that take another function as an argument and return a new function with added functionality. This can be particularly useful for aspects like logging, access control, and performance measurement. For example, a simple logging decorator could log the execution time of a function:

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

Using decorators promotes cleaner code by separating concerns, allowing you to keep your business logic focused while managing cross-cutting concerns like logging or validation elsewhere. Additionally, decorators can be stacked, meaning you can apply multiple decorators to a single function, further enhancing its behavior. By leveraging decorators effectively, you can improve code organization and maintainability.

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