#11895: padic_ZZ_pX_CR_element is unhashable
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Reporter: mmasdeu | Owner: roed
Type: defect | Status: needs_work
Priority: critical | Milestone: sage-5.4
Component: padics | Resolution:
Keywords: p-adic, hash | Work issues: whitespace, line wrapping in
docstrings
Report Upstream: N/A | Reviewers: David Loeffler
Authors: David Roe | Merged in:
Dependencies: | Stopgaps:
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Comment (by roed):
Nils, I agree that there are some horrible compromises to be had on this
issue. I would like to make p-adic elements unhashable, but there are
some nasty consequences of doing so. We can't add points on elliptic
curves over p-adic fields. We can't print matrices. Out of curiousity I
tried changing the hash methods on elements of Zp and Qp to raise a
`TypeError`. Hundreds of doctest failures. There's an assumption that
elements are hashable throughout Sage.
I don't know what the answer is. If we can come to a consensus on this
I'm happy to fix the whitespace issues. :-)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11895#comment:7>
Sage <http://www.sagemath.org>
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