#9944: categories for polynomial rings
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Reporter: robertwb | Owner: nthiery
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.7
Component: categories | Keywords:
Author: Robert Bradshaw | Upstream: N/A
Reviewer: Nicolas M. Thiéry, Mike Hansen | Merged:
Work_issues: Fix one test |
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Comment(by SimonKing):
Concerning performance loss:
It seems to me that part of the reason is the fact that with the patchse,
`__init_extra__` is not executed when it should. Sometimes, the parent
methods of a category provide a useful `__init_extra__`, for example the
category of algebras.
I am not sure yet why that happens, but I think it would happen if
`Parent.__init__` is called without providing the category: Namely, doing
`self._init_category_(...)` alone will ''not'' trigger the execution of
`__init_extra__`.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9944#comment:13>
Sage <http://www.sagemath.org>
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