#12876: Fix element and parent classes of Hom categories to be abstract, and
simplify the Hom logic.
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Reporter: nthiery | Owner: nthiery
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.1
Component: categories | Resolution:
Keywords: categories, Hom | Work issues: Fix ring_refcount_dict
problem
Report Upstream: N/A | Reviewers: Simon King
Authors: Nicolas M. Thiéry | Merged in:
Dependencies: #12875, #12877 | Stopgaps:
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Comment (by SimonKing):
Another point: I had inserted a comment in #11521, namely "Apparently
_Hom_ is supposed to be cached." This is why I did not insert stuff in the
(weak) cache.
Do you lift that assumption? Then, we should see what _Hom_ methods
actually do caching. They should at most do ''weak'' caching.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12876#comment:18>
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