#715: Parents probably not reclaimed due to too much caching
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Reporter: robertwb | Owner: somebody
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: coercion | Keywords: weak cache
coercion
Work_issues: Comparison of the third key items | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9138,
#11900
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Changes (by SimonKing):
* status: needs_review => needs_work
* work_issues: => Comparison of the third key items
Comment:
I think I need to modify one detail:
For efficiency and since domain/codomain of a map must be identic with
(and not just equal to) the given keys, my patch compares them by "is"
rather than "==". But I think one should still compare the third item of a
key via "==" and not "is". I need to do some tests first...
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:34>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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