composite_decorators.py

from functools import reduce, wraps

def dec1(func):
    print("dec1: Decorating", func)

    @wraps(func)
    def wrapper(*args, **kwargs):
        print("dec1: Calling {}(args={},kwargs={})".format(func.__name__, args, kwargs))
        return func(*args, **kwargs)

    return wrapper

def dec2(func):
    print("dec2: Decorating", func)
    @wraps(func)
    def wrapper(*args, **kwargs):
        print("dec2: Calling {}(args={},kwargs={})".format(func.__name__, args, kwargs))
        return func(*args, **kwargs)

    return wrapper


def dec3(func):
    print("dec3: Decorating", func)
    @wraps(func)
    def wrapper(*args, **kwargs):
        print("dec3: Calling {}(args={},kwargs={})".format(func.__name__, args, kwargs))
        return func(*args, **kwargs)

    return wrapper

def apply_decorators(*decorators):
    def wrapper(func):
        return reduce(lambda func, decorator: decorator(func), decorators, func)

    return wrapper

@apply_decorators(dec1, dec2, dec3)
def decorate_me_soflty(*args, **kwargs):
    print("I'm the decorated one")

    return 42

print(decorate_me_soflty("Do it hard!"))