decorator_fix.py

# -*- coding: utf-8 -*-
from functools import wraps
import time
from math import pi


def type_check(func):

    @wraps(func)
    def type_wrapper(*args, **kwargs):
        result = func(*args, **kwargs)
        print '{}: {}; type is {}'.format(func.__name__, result, str(type(result)).split(' ')[-1][1:-2])
        return result
    return type_wrapper


def timer(func):

    @wraps(func)
    def timer_wrapper(*args, **kwargs):
        t = time.time()
        result = func(*args, **kwargs)
        print u'виконання %s зайняло: %f' % (func.__name__, (time.time() - t))
        return result
    return timer_wrapper


@type_check
@timer
def multiply(x, y, c):
    return (x*y) - (c*pi)**2


print multiply(2123123.5234343, 3234, 17)