Python object overhead?

[Matt Garman]

On 3/23/07, Jack Diederich <jackdied at jackdied.com> wrote:
> If you make the record a new style class (inherit from object) you can
> specify the __slots__ attribute on the class.  This eliminates the per
> instance dictionary overhead in exchange for less flexibility.

When you say "new style class", do you mean that the __slots__ feature
is only available in a newer version of Python?  Unfortunately, I'm
stuck on 2.3.4 for this project.

Thanks,
Matt