#11900: Serious regression caused by #9138
------------------------------------------------------+---------------------
Reporter: SimonKing | Owner: tbd
Type: defect | Status:
needs_work
Priority: major | Milestone:
sage-4.7.3
Component: performance | Keywords:
categories regression
Work_issues: fix doctests, fix libsingular pickling | Upstream: N/A
Reviewer: | Author: Simon
King
Merged: | Dependencies: #9138
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Changes (by SimonKing):
* work_issues: fiy doctests, fix categories for polynomial rings,
improve all_super_categories => fix
doctests, fix libsingular pickling
Comment:
I found a pickling bug for libsingular polynomia rings.
First session:
{{{
sage: P.<foo,bar> = PolynomialRing(QQ)
sage: save(P,'tmp')
}}}
Second session:
{{{
sage: Q = load('tmp.sobj')
sage: P.<foo,bar> = PolynomialRing(QQ)
sage: Q is P
False
sage: Q2 = load('tmp.sobj')
sage: Q2 is P
True
sage: Q2 is Q
False
}}}
Since I am fixing coercion of libsingular polynomial rings anyway, I'll
fix the bug here.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11900#comment:47>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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