#11474: Elliptic curves should be unique parent structures
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Reporter: SimonKing | Owner: cremona
Type: defect | Status: needs_info
Priority: major | Milestone: sage-6.2
Component: elliptic curves | Resolution:
Keywords: unique parent | Merged in:
Authors: Simon King | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by defeo):
I'm trying to gitify Simon's code, but I get heaps of errors when I
doctest. They all seem to be the same:
{{{
File "/home/dfl/sage/local/lib/python2.7/site-
packages/sage/databases/cremona.py", line 873, in elliptic_curve
F =
EllipticCurve_rational_field.__new__(EllipticCurve_rational_field)
TypeError:
sage.misc.fast_methods.WithEqualityById.__new__(EllipticCurve_rational_field)
is not safe, use sage.structure.parent.Parent.__new__()
}}}
Does anyone understand it?
--
Ticket URL: <http://trac.sagemath.org/ticket/11474#comment:22>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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