Re: [Pyobjc-dev] pyobjc vs. CoreData bug

[Ronald O. <ron...@ma...>]

 
On Wednesday, October 05, 2005, at 00:54AM, Bill Bumgarner <bb...@ma...> wrote:

>There is a bug in PyObjC when used with CoreData.  Easy workaround,  
>fortunately.
>
>This won't work unless foo is declared as an iVar of bar (bar is a  
>subclass of NSManagedObject):
>
>	bar.foo = 10
>
>It appears that the on-assignment KVC or KVO mechanism isn't firing  
>unless there is an iVar.  

That's odd. I'm playing around with NSMetadataQuery in a Twisted app and seem to run into a situation where the automatic mechanism is fireing when it shouldn't: just after the object is dealloced. My workaround was adding a __slots__ definition to the class.

Ronald