[Zope-dev] Zope Head (2.8) breaks "refresh"

[Jeremy Hylton]

On Mon, 2003-12-15 at 07:34, Dieter Maurer wrote:
> >I don't think it makes a lot of sense to put an __del__ method on a
> >Persistent object.
> 
> I just read in "cPersistence.c:ghostify":
> 
>     /* We remove the reference to the just ghosted object that the ring
>      * holds.  Note that the dictionary of oids->objects has an uncounted
>      * reference, so if the ring's reference was the only one, this frees
>      * the ghost object.  Note further that the object's dealloc knows to
>      * inform the dictionary that it is going away.
>      */
> 
> This means: *all* persistent objects have a special "dealloc"
> function. Hope, this "dealloc" function plays well with the
> cyclic garbage collector.

All Python objects have a "dealloc" function -- whatever is in the
tp_dealloc slot.  The tp_dealloc function at the C level is completely
different from an __del__ method at the Python level.

Jeremy