#19108: Implement Python 3 style comparison in the coercion framework
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Reporter: ohanar | Owner:
Type: enhancement | Status: new
Priority: major | Milestone: sage-6.9
Component: coercion | Keywords:
Merged in: | Authors: R. Andrew Ohana
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | u/ohanar/python3stylecomparison
168fafb347a6afbdc96cae5bc27a4bea1c22f2e9| Dependencies:
Stopgaps: |
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Currently to implement comparison for an element, you either need to
implement `_cmp_` or `_richcmp_`. For developers accustom to Python 3's
method of implementing each comparison operator, we should have `_lt_`,
`_le_`, etc.
Additionally, for most elements where comparison makes sense, there is the
overwhelming notion that such a comparison is a partial order. Thus
(unlike in pure python) we should make the default behavior extend the
provided operators to a partial order (provided enough comparison
operators are provided).
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Ticket URL: <http://trac.sagemath.org/ticket/19108>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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