On Sun, 18 Apr 2010 07:47:08 am Maciej Fijalkowski wrote: > On Sat, Apr 17, 2010 at 1:03 PM, Steve Holden <st...@holdenweb.com> wrote: > > Dino Viehland wrote: > >> Maciej wrote: > > > > [...] > > > >>> And yet that breaks some code :-) > >> > >> Sure, if you do: > >> > >> class C(object): > >> locals()[object()] = 42 > >> > >> dir(C) > >> > >> You lose. Once I'm aware of some piece of code in the wild doing > >> this then I'll be happy to change IronPython to be more > >> compatible. :) > > > > This would be a lose anyway, since the CPython specifications > > suggest that you should not rely on being able to change locals() > > (or at least shouldn't expect that such changes are actually > > reflected in the local namespace). > > You can override __new__ of a type subclass to achieve the same > effect (or even directly call type.__new__ with strange dict as an > argument).
I think that only works in Python 3.x, in 2.x the __dict__ is always a regular dict no matter what you pass. At least for CPython. If there is a way to set the dict of a class to something other than a regular dict in CPython 2.x, I would be very pleased! -- Steven D'Aprano _______________________________________________ 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
