python Python装饰模板（来自“Head First Python ed.2”）

Posted 2021-05-09

from functools import wraps


def decorator_name(func):
    @wraps(func)
    def wrapper(*args, **kwargs):
        # 1. Code to execute BEFORE calling the decorated function.
        
        # 2. Call the decorated function as required, returning its results if needed.
            return func(*args, **kwargs)

        # 3. Code to execute INSTEAD of calling the decorated function.
    return wrapper