[Python-Dev] reference leaks, del, and annotations (original) (raw)

Neil Schemenauer nas at arctrix.com
Tue Apr 4 19:50:22 CEST 2006

Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:

Okay, so would it be possible for a generator that needs finalisation to set up a weakref callback, suitably rooted somewhere so that the callback is reachable, that references enough stuff to clean up after the generator, without referencing the generator itself?

I think so but it depends on what the finalizer needs to reference. If it references into the cycle then we are back to the same problem. I think you could also do the same thing with a sub-object that has the del method. Maybe the generator would only create the sub-object if it needed to perform finalization.

Neil

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