My preferred way of making a decorator with arguments

decorators_with_arguments.py

class great_stuff(object):
    def __init__(self, a, b, c):
        """
        __init__ is *not* passed the function to be decorated if arguments
        are passed to the decorator. 
        """
        self.a = a
        self.b = b
        self.c = c

    def __call__(self, func):
        """
        FYI, this is only called once as part of the decoration process.
        It is not re-called on each function call. It can only have one
        argument, the function being decorated.
        """
        print "we're inside __call__"

        def wrapper(*args):
            print "we're inside the wrapper."
            print "our arguments are {a}, {b} and {c}".format(a=self.a, b=self.b, c=self.c)
            func(*args)
            print "func was called"
    
        return wrapper

@great_stuff("a", "b", "c")
def boop(x, y, z, w):
    print "now we're in boop with {x}, {y}, {z} and {w}".format(x=x, y=y, z=z, w=w)