On Mon, 06 May 2013 22:50:55 -0400 Terry Jan Reedy <tjre...@udel.edu> wrote: > > > A bytearray or a array.array may indeed store values, but a list stores > > references to > > objects. > > I said exactly that in reference to CPython. As far as I know, the same > is true of lists in every other implementation up until Pypy decided to > optimize that away. What I also said is that I cannot read the *current* > doc as guaranteeing that characterization.
In the absence of more precise specification, the reference is IMO the reference interpreter, a.k.a. CPython, and its behaviour is more than well-known and stable over time here. > > I'm pretty sure that not respecting identity of objects stored in > > general-purpose containers would break a *lot* of code out there. > > Me too. Hence I suggested that if lists, etc, are intended to respect > identity, with 'is' as currently defined, in any implementation, then > the docs should say so and end the discussion. I would be happy to > commit an approved patch, but I am not in a position to decide the > substantive content. For me, a patch that mandated general-purpose containers (list, dict, etc.) respect object identity would be ok. Regards Antoine. _______________________________________________ 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
