#11636: Do not use PARI's hash_GEN() for gen.__hash__ -- it is buggy
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Reporter: was | Owner: was
Type: defect | Status: new
Priority: critical | Milestone: sage-4.7.2
Component: interfaces | Keywords:
Work_issues: | Upstream: N/A
Reviewer: | Author:
Merged: | Dependencies:
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Description changed by was:
Old description:
> Please revert #9667, since PARI's hash_GEN hash's equal hermite normal
> forms to different values. It does not have valid semantics for Python.
>
> This problem is very serious, because it leads to major mathematically
> incorrect problems/confusion, potentially all over the place, and is hard
> to track down.
New description:
Please revert #9667, since PARI's hash_GEN hash's equal hermite normal
forms to different values. It does not have valid semantics for Python.
Alternatively, figure out what the bug is in hash_GEN.
This problem is very serious, because it leads to major mathematically
incorrect problems/confusion, potentially all over the place, and is hard
to track down.
For example, this caused #11611, and #11611 should be closed when this is
done.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11636#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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