[David Isaac] > > Why don't tuples support an index method? > > It seems natural enough ...
[Peter Hansen] > This question has been posed several (many?) times in the past. See the > archives for more detail, but basically the answer that is usually given > is this: > > Tuples are intended to be used somewhat like C "structs", or Pascal > "records", which is to say they should contain heterogeneous sequences > of information for which the concept of ".index()" is fairly > meaningless. They are _not_ generally intended to be used as "read-only > lists", and that's basically why .index() wasn't defined for them. > > Another answer that probably follows close on the heels of that one is > along the lines of "patches are always welcome", but I honestly don't > know if a patch to add this would be accepted. Probably checking > Sourceforge for past patches would give an answer, since it seems likely > someone has already tried. Executive summary: Guido likes it the way it is. Someday, he may change his mind. Probably not. Raymond Hettinger -- http://mail.python.org/mailman/listinfo/python-list
