Multiple-argument decorators in python via classes!

multidecorator.py

def multidecorator(fn):
    class _MultiDecorator(object):
        class __metaclass__(type):
            def __new__(cls, name, bases, dict):
                # No magic on the first class with this metaclass
                if bases == (object,):
                    return type.__new__(cls, fn.__name__, bases, dict)
                else:
                    return fn(**dict)
    return _MultiDecorator

@multidecorator
def whatever(first, second, **_):
    print first(1, 1)
    print second(1, 1)

class something(whatever):
    def first(a, b):
        return a + b
    def second(a, b):
        return a * b