#11935: Make parent/element classes independent of base rings and the category
graph consistent with method resolution
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Reporter: SimonKing | Owner: nthiery
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.7.3
Component: categories | Keywords: parent class, element class,
category
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies: #11900
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Comment(by nthiery):
Replying to [comment:2 SimonKing]:
> A problem may be seen in pickling. Before explaining the problem, let me
remark that I don't see a big concern for "pickling a parent class":
True: all parents ought to be pickled "by construction" rather than by
"class + internal data", in order to encapsulate as much as possible
of the data structure. This probably ought to be true as well for
elements. I don't know how far we are from this.
A good thing to do at this point would be to search through the sage
pickle jar for how many parent_class's and element_class's are pickled
there. And why. I don't know how complicated it is to do this search
though.
Among the three propositions, I like 3 best. I have trouble evaluating
how big the risks are to get stuck in the future. It does not seem too
big.
Thanks Simon for investigating this!
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11935#comment:3>
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