#12215: Memleak in UniqueRepresentation, @cached_method
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Reporter: vbraun | Owner: rlm
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.8
Component: memleak | Keywords: UniqueRepresentation cached_method
caching
Work_issues: fix it... | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #11115 #11900
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Comment(by SimonKing):
It seems that a good deal of the errors comes from a method
`sage.combinat.sf.sf.SymmetricFunctions.register_isomorphism`: It
registers a coercion, but this is only possible when no coercion has been
established for that object before.
What should one do: Catch the error and 'not'' registering the coercion?
Or wipe the registered coercions, by calling
`sage.structure.parent.Parent.unset_coercions_used`?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12215#comment:43>
Sage <http://www.sagemath.org>
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