I want to construct classes for use as decorators with the following principles intact:

1. It should be possible to stack multiple such class decorators on top off 1 function.
2. The resulting function name pointer should be indistinguishable from the same function without a decorator, save maybe for just which type/class it is.
3. Ordering off the decorators should not be relevant unless actually mandated by the decorators. Ie. independent decorators could be applied in any order.

This is for a Django project, and the specific case I am working on now the method needs 2 decorators, and to appear as a normal python function:

```
@AccessCheck
@AutoTemplate
def view(request, item_id) {}

```

@AutoTemplate changes the function so that instead of returning a HttpResponse, it just returns a dictionary for use in the context. A RequestContext is used, and the template name is inferred from the method name and module.

@AccessCheck adds additional checks on the user based on the item\_id.

I am guessing it's just to get the constructor right and copy the appropriate attributes, but which attributes are these?

The following decorator won't work as I describe:

```
class NullDecl (object):
    def __init__ (self, func):
        self.func = func
    def __call__ (self, * args):
        return self.func (*args)

```

As demonstrated by the following code:

```
@NullDecl
@NullDecl
def decorated():
    pass

def pure():
    pass

# results in set(['func_closure', 'func_dict', '__get__', 'func_name',
# 'func_defaults', '__name__', 'func_code', 'func_doc', 'func_globals'])
print set(dir(pure)) - set(dir(decorated));

```

Additionally, try and add "print func.**name**" in the NullDecl constructor, and it will work for the first decorator, but not the second - as name will be missing.

Refined **eduffy**'s answer a bit, and it seems to work pretty well:

```
class NullDecl (object):
    def __init__ (self, func):
        self.func = func
        for n in set(dir(func)) - set(dir(self)):
            setattr(self, n, getattr(func, n))

    def __call__ (self, * args):
        return self.func (*args)
    def __repr__(self):
        return self.func

```