Python: static variable decorator

Question

I\'d like to create a decorator like below, but I can\'t seem to think of an implementation that works. I\'m starting to think it\'s not possible, but thought I would ask yo

Answer 1

How about this, without decorators?

class State(dict):
    """Object interface to dict."""
    def __getattr__(self, name):
        try:
            return self[name]
        except KeyError:
            raise AttributeError, name

def f(d=State(x=0)):
    d.x += 1
    return d.x

And here is it in action:

>>> f()
1
>>> f()
2
>>> f()
3