defaultdict -> standard library?

[Tim Peters]

[Ralf W. Grosse-Kunstleve]
> The tutorial at
>
> http://www.python.org/2.2/descrintro.html
>
> includes a class "defaultdict." It would be incredibly useful
> if this could be included in the standard library that ships
> with Python. Are there any plans in this direction?

No, there are not.  Most people eventually get around to building their own
utility modules, and there are thousands of functions in those we don't put
in the std library either <wink>.