What are the best practices for using decorators in Python 3.10?

What are the best practices for using decorators in Python 3.10?

In Python 3.10, it's best to keep decorators simple and focused on a single responsibility. Use functools.wraps to preserve metadata.

Can you give me an example of a simple decorator?

Sure! Here's a simple logging decorator:

import functools

def log_function_call(func):
    @functools.wraps(func)
    def wrapper(*args, **kwargs):
        print(f'Calling {func.__name__} with {args} and {kwargs}')
        return func(*args, **kwargs)
    return wrapper

What should I avoid when creating decorators?

Avoid making decorators too complex or doing too many things at once. Also, be cautious with stateful decorators that maintain state.

How can I test my decorators?

You can test decorators by writing unit tests that check the behavior of the decorated function, ensuring it behaves as expected.