#18756: Use cython and coercion for CombinatorialFreeModule
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Reporter: SimonKing | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.8
Component: algebra | Keywords: CombinatorialFreeModule,
Merged in: | cython, coercion
Reviewers: | Authors:
Work issues: | Report Upstream: N/A
Commit: | Branch:
Stopgaps: | Dependencies:
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`CombinatorialFreeModule`
- is written in Python (hence, is too slow at least for my applications),
- its elements just inherit from `Element` and not from a more appropriate
base class (`ModuleElement` or even better `RingElement`, since the former
for some reason raises an error on an inner multiplication), and
- it is not conforming to Sage's coercion model, which really is bad,
since I have seen many people who would start with
`CombinatorialFreeModule` when implementing new algebraic stuff.
The aim of this ticket is to fix these issues.
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Ticket URL: <http://trac.sagemath.org/ticket/18756>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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