#9016: make morphisms hashable
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Reporter: burcin | Owner: AlexGhitza
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-4.7.1
Component: categories | Keywords:
Work_issues: | Upstream: N/A
Reviewer: Robert Bradshaw | Author: Burcin Erocal
Merged: | Dependencies:
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Changes (by robertwb):
* status: needs_review => needs_info
Comment:
Hashing the string representation is preferable, or the image of the
generators of the codomain (caching the result if the performance isn't
sufficient). Either that or raising an error and requiring all specific
subclasses (that have the information to distinguish between distinct
elements) implement this.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9016#comment:11>
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