What are the best practices for using method decorators in Python?

What are the best practices for using method decorators in Python?

When using method decorators in Python, it's important to keep them simple, reusable, and well-documented. Avoid side effects and ensure they are easy to test.

Can you give me an example of a simple method decorator?

Sure! Here's a simple logging decorator:

def log_method_call(method):
    def wrapper(*args, **kwargs):
        print(f'Calling {method.__name__} with {args} and {kwargs}')
        return method(*args, **kwargs)
    return wrapper

How can I handle exceptions in a method decorator?

You can handle exceptions by wrapping the method call in a try-except block within the decorator. Here's an example:

def handle_exceptions(method):
    def wrapper(*args, **kwargs):
        try:
            return method(*args, **kwargs)
        except Exception as e:
            print(f'Error occurred: {e}')
    return wrapper

Are there any performance considerations I should be aware of?

Yes, decorators can add overhead, especially if they perform complex operations. It's best to keep them lightweight and avoid unnecessary computations.