Paul Dubois wrote: > > Aside: While I am at it, let me reiterate what I have said to the other > developers privately: there is NO value to inheriting from the array > class. Don't try to achieve that capability if it costs anything, even > just effort, because it buys you nothing. Those of you who keep > remarking on this as if it would simply haven't thought it through IMHO. > It sounds so intellectually appealing that David Ascher and I had a > version of Numeric that almost did it before we realized our folly. > To be contrarian, we did find great benefit (at least initially) for inheritance for developing the record array and character array classes since they share so many structural operations (indexing, slicing, transposes, concatenation, etc.) with numeric arrays. It's possible that the approach that Travis is considering doesn't need to use inheritance to accomplish this (I don't know enough about the details yet), but it sure did save a lot of duplication of implementation.
I do understand what you are getting at. Any numerical array inheritance generally forces one to reimplement all ufuncs and such, and that does make it less useful in that case (though I still wonder if it still isn't better than the alternatives) Perry Greenfield _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
