combine_decorators.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

__author__ = "ipetrash"


import functools


def makebold(func):
    @functools.wraps(func)
    def wrapped(*args, **kwargs):
        return "<b>" + func(*args, **kwargs) + "</b>"

    return wrapped


def makeitalic(func):
    @functools.wraps(func)
    def wrapped(*args, **kwargs):
        return "<i>" + func(*args, **kwargs) + "</i>"

    return wrapped


def upper(func):
    @functools.wraps(func)
    def wrapped(*args, **kwargs):
        return func(*args, **kwargs).upper()

    return wrapped


def composed(*decs):
    def deco(f):
        for dec in reversed(decs):
            f = dec(f)
        return f

    return deco


def multi(func):
    return composed(
        makebold,
        makeitalic,
        upper,
    )(func)


@makebold
@makeitalic
@upper
def hello(text):
    return text


@multi
def hello_2(text):
    return text


print(hello("Hello World!"))
# <b><i>HELLO WORLD!</i></b>

print(hello_2("Hello World!"))
# <b><i>HELLO WORLD!</i></b>