#10667: Morphisms and Objects of Categories
---------------------------+------------------------------------------------
Reporter: SimonKing | Owner: nthiery
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.0
Component: categories | Keywords: objects morphisms containment
Work_issues: doctests | Upstream: N/A
Reviewer: | Author: Simon King
Merged: | Dependencies: #9138, #11115
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Comment(by SimonKing):
Perhaps a related question: In sage/categories/rings.py, we have
{{{
#!python
class HomCategory(HomCategory):
class ParentMethods:
def __new__(cls, X, Y, category):
from sage.rings.homset import RingHomset
return RingHomset(X, Y, category = category)
def __getnewargs__(self):
return (self.domain(), self.codomain(), self.category())
}}}
Wouldn't it be possible to simply have
{{{
#!python
class HomCategory(HomCategory):
class ParentMethods(RingHomset):
pass
}}}
?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10667#comment:29>
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