[Python-Dev] weakref enhancements (original) (raw)

tomer filiba tomerfiliba at gmail.com
Thu Sep 28 20:40:34 CEST 2006

i'd like to suggest adding weak attributes and weak methods to the std weakref module.

weakattrs are weakly-referenced attributes. when the value they reference is no longer strongly-referenced by something else, the weakattrs "nullify" themselves.

weakmethod is a method decorator, like classmethod et al, that returns "weakly bound" methods. weakmethod's im_self is a weakref.proxy to self, which means the mere method will not keep the entire instance alive. instead, you'll get a ReferenceError.

i think these two features are quite useful, and being part of the stdlib, would provide programmers with easy-to-use solutions to object-aliveness issues.

more info, examples, and suggested implementation:

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