[Python-Dev] Making weakref callbacks safe in cyclic gc

Neil Schemenauer nas-python at python.ca
Mon Nov 17 21:11:24 EST 2003

On Tue, Nov 18, 2003 at 02:21:45PM +1300, Greg Ewing wrote:
> I remember reading once about the finalization scheme used in a
> particular Smalltalk implementation (I think it was ParcPlace) in
> which an object requiring finalization registers another object to be
> notified after it has died.

I think that may be called "guardians".


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