#14471: Exception KeyError: in WeakValueDictionary remove ignored
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Reporter: vbraun | Owner: rlm
Type: defect | Status: new
Priority: major | Milestone: sage-5.10
Component: memleak | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Changes (by vbraun):
* cc: SimonKing, nbruin (added)
Comment:
Adding some debugging in `remove()` shows that the `wr.key` is still in
`self.dict.keys()` but `del self.dict[wr.key]` fails with a !KeyError.
Presumably because the whole thing is running during the garbage
collection cycle. I tried #14159 but it didn't change anything.
I haven't figured out exactly which cache in the Sage library is the
culprit, maybe Simon knows?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14471#comment:3>
Sage <http://www.sagemath.org>
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