On Fri, 2004-11-12 at 04:27, Jens Jorgen Mortensen wrote:

A few days ago, I found this page:

http://mail.python.org/pipermail/python-list/2004-May/220513.html

where speedups for creating objects using __slots__ is demonstrated. I have read somewhere that creation of numarrays is much slower than creation of Numeric arrays - so maybe using __slots__ should be considered?

Just a suggestion from a happy numarray user!

Thanks for the suggestion! I wondered about this before, but the idea fizzled through a combination of doubt about how much performance gain would be involved and the impression that using __slots__ would preclude creation of new attributes on basic NumArrays. Seeing real information about the performance motivates me to take a closer look, so thanks. I think placing the "no new attributes without subclassing" restriction on NumArrays is probably worth the gains and will check into it. This day is getting better and better, Todd