#15904: Defining __eq__ without defining __ne__ or __cmp__: sage/combinat
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Reporter: darij | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.2
Component: combinatorics | Resolution:
Keywords: sage-combinat, equality, | Merged in:
inheritance | Reviewers:
Authors: | Work issues:
Report Upstream: N/A | Commit:
Branch: | Stopgaps:
Dependencies: |
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Comment (by darij):
I'm not sure if TestSuite is always applicable in such cases -- e.g. what
should I apply TestSuite to in order to see the issue with `Core`?
Redefining `CombinatorialObject.__ne__` might come with a little speed
penalty, but I guess it translates into either a bugfix or a speedup in
most classes inheriting from `CombinatorialObject` because those redefine
`__eq__` to something either more correct or faster. This wouldn't,
however, solve all the issues here. For example, `ContreTableaux` only
inherits from `Parent` (BTW: why does `ContreTableaux.category()` raise a
TypeError?), while `CombinatorialSpecies` inherits from `SageObject`, etc.
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Ticket URL: <http://trac.sagemath.org/ticket/15904#comment:3>
Sage <http://www.sagemath.org>
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