@Larry
>     "@property" 375 hits
>     "def __getattr__" 28 hits
I don't think it is fair to compare occurrences of __getattr__ vs occurrences of @property,
since in the first case one would use a single __getattr__ per class, while in the second case
@property is required for every attribute.

@Guido
> I'm still poindering this. I am far from decided about whether it's better to ...
The decision is up to you, I just wanted to bring an idea that is both simpler and
more performance efficient.

--
Ivan