Why no list heritable type?

[Mike Meyer]

Jeff Shannon <jeff at ccvcorp.com> writes:

> Sion Arrowsmith wrote:
> Additionally, as I understand it UserList and UserDict are implemented
> entirely in Python, which means that there can be significant
> performance differences as well.

Actually, UserList and UserDict are just wrappers around the builtin
types. So the performance hit is one Python function call - pretty
much neglible. But new code should still subclass the builtins.

     <mike
-- 
Mike Meyer <mwm at mired.org>			http://www.mired.org/home/mwm/
Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information.