On Mon, Dec 13, 2004 at 12:20:29PM -0500, Colin J. Williams wrote:

[...] The complexity would depend partly on whether TimeStuff deals only with data of the MyTime32 type.

If all other data types (Int8, Float, Complex etc.) are barred, then the needed overriding would probably be simpler. [...]

I have the feeling that MyInt32-only support should be enough for the NumArray subclass (it's a uniform array). However, the RecArray subclass should be able to handle all existing types in addition to MyInt32.

I guess that another factor to consider is whether this is a one-off project or something which will be in production for years to come. If the former, it might be simpler to do the time related things outside of numarray. On the other hand, if execution time is a significant factor, then it could be worthwhile to modify the ufuncs - that is not a thing I would like to tackle.

Hehe, it will be production code with time-critical requirements. :) However, it now seems to me that subclassing NumArray and RecArray will be the right thing (not the easiest, though) to do. Thanks a lot Colin and Todd for your helpful comments. I'll try to do it and will tell you how it went. Bye! -- Ivan Vilata i Balaguer >qo< http://www.carabos.com/ Cárabos Coop. V. V V Enjoy Data ""