#7580: bugs in infinite polynomial ring
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Reporter: was | Owner: SimonKing
Type: defect | Status: needs_work
Priority: major | Milestone: sage-4.3.2
Component: algebra | Keywords: infinite polynomial ring coercion
Author: Simon King | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by SimonKing):
Replying to [comment:35 SimonKing]:
> But there is a version number passed to the construction factory, in
addition to the unique key. Probably that allows to transform old pickles
into shiny new rings.
There is a very clear difference between new and old "unique keys" (which
are used for pickling): New keys are pairs, old keys are longer tuples. I
guess it is robuster to discriminate by the length of the key rather than
by version number.
I am now running {{{sage -testall}}} and (if it works) will provide
another patch later.
Cheers,
Simon
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7580#comment:36>
Sage <http://www.sagemath.org>
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