#18026: Parent breakage because not every SageObject is idempotent
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Reporter: vbraun | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.6
Component: pickling | Resolution:
Keywords: | Merged in:
Authors: | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by tscrim):
Replying to [comment:9 vbraun]:
> Replying to [comment:8 jdemeyer]:
> > You are making the mistake that everything which has a `parent()`
method is an `Element` of some `Parent`.
>
> If it walks like a duck and talks like a duck then it must be a duck.
The issue to me is that `SageObject` walks and talks pretty close to a
duck, but it is just a hunter with a toy duck trying to lure you in. I
agree with Volker in comment:2 that we should strip `parent` out of
`SageObject`. Also the `TestSuite` checks currently for idempotent-ness
(but IDK if that needs to be a subclass of `Parent`).
While we are at it, could we also do some of the others like `base_ring`
and `n`?
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Ticket URL: <http://trac.sagemath.org/ticket/18026#comment:10>
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