#13394: Write a WeakValueDictionary with safer key removal
-------------------------------------+-------------------------------------
Reporter: nbruin | Owner: rlm
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.13
Component: memleak | Resolution:
Keywords: | Merged in:
Authors: Simon King, Nils | Reviewers: Simon King
Bruin | Work issues:
Report Upstream: None of the above | Commit:
- read trac for reasoning. | 851cc9522dde332561101f1c84182a0a84b8eed4
Branch: | Stopgaps:
u/SimonKing/ticket/13394 |
Dependencies: |
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Comment (by SimonKing):
I have tested (by inserting print statements into
`del_dictitem_by_exact_value`) that the following is a valid test for the
callback silently doing the right thing:
{{{
sage: from sage.misc.weak_dict import WeakValueDictionary
sage: V = [set(range(n)) for n in range(5)]
sage: D = WeakValueDictionary(enumerate(V))
sage: for k in D.iterkeys():
....: V[k] = None
....: D[k] = ZZ
}}}
So, this could be added as a test.
I just see that you have also tried to push something. I'll see what you
suggest, will merge, and then I'll push the result.
--
Ticket URL: <http://trac.sagemath.org/ticket/13394#comment:66>
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