[Python-Dev] Weak Dictionary Iteration Behavior in Python 3 (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Mon Sep 15 03:17:45 CEST 2008


Georg Brandl wrote:

In this case, what WeakKeyDictionary.keys() returns is not a view anyway, so using list(self.data.keys()) in the method seems like a good compromise.

I don't think that helps, because the implementation has to iterate over that to dereference the weak refs, and if that's done in Python code there's a chance for a weak ref to disappear in the process.

-- Greg



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