Re: [Pyobjc-dev] Re: Structs, tuples and instances

[Dinu G. <gh...@da...>]

Ronald Oussoren:

> I agree that immutability isn't very usefull, but it buys you one
> important feature: structseqs are useable as keys in dictionaries.

How much is that worth when dealing with elements which actually
*are* and *should be* mutable?

> Does anyone use points, rects or sizes as the key in a dictionary?

My point of view is that doing this is a *bad idea* and the fact
that you can do it now introduces a source of confusion because
it advocates usage patterns in PyObjC which are not just some
kind of a more Pythonic way of doing something, but introduce
artificial and unnecessary differences between PyObjC and ObjC
on a conceptual level, which must be something to minimize if
technically possible.

Dinu

--
Dinu C. Gherman - http://python.net/~gherman
......................................................................
"The whole point of brainwashing, is that those being brainwashed
don't know it." (Graham Haley)