#10130: Revamp __hash__, __cmp__ and __richcmp__
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Reporter: roed | Owner: robertwb
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.7
Component: coercion | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Changes (by tscrim):
* cc: nthiery (added)
Comment:
Nicolas T. and I somewhat came across the second point in working on
#13605. In particular, I have changed `Partition` to inherit from
`Element`, use the rich comparisons, and removed the `__cmp__()` method.
Thus calling things like
{{{
sage: sorted(Partitions(5), cmp)
}}}
raise the "BUG - comparsion not implemented" exception. This holds for any
subclass of `Element` which does not implement a `__cmp__()` and does not
fall back on the rich comparisons as regular python objects would.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10130#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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