mixin helper class for unknown attribute access?

I know that I can catch access to unknown attributes with code something
like the following:

class example:
      def __getattr__(self, name):
          if name == 'age':
              return __age
          else:
              raise AttributeError

but is there an existing mixin helper class in Python (or one someone
has written) already that will assist with this? (Just not wanting to
reinvent the wheel....)
Received on Mon Nov 21 01:07:32 2005