#18246: remove __hash__ from SageObject
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Reporter: | Owner:
vdelecroix | Status: new
Type: | Milestone: sage-6.7
defect | Resolution:
Priority: major | Merged in:
Component: | Reviewers:
coercion | Work issues:
Keywords: | Commit:
Authors: | a7aa08f9a30c97fd080edb9f35c89717605bd59e
Report Upstream: N/A | Stopgaps:
Branch: |
public/18246 |
Dependencies: |
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Description changed by vdelecroix:
Old description:
New description:
Hashing is a critical function in Python. In several places, objects do
use the generic `__hash__` from `SageObject` or a badly implemented one
that makes everything slow. For example:
- #18215 for quadratic number field elements (in relation with polyhedra
#18241)
- #18239 for permutation group elements
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Ticket URL: <http://trac.sagemath.org/ticket/18246#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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