#15437: Add basic ideals to Laurent Polynomials
-----------------------------------------------+-------------------------
Reporter: mmarco | Owner: mmarco
Type: enhancement | Status: new
Priority: major | Milestone: sage-5.13
Component: commutative algebra | Resolution:
Keywords: Laurent polynomials, ideals | Merged in:
Authors: mmarco | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
-----------------------------------------------+-------------------------
Comment (by mmarco):
Pickling fails, i don't know why:
{{{
sage: L=LaurentPolynomialRing(QQ,3,'t')
sage: loads(dumps(L))
---------------------------------------------------------------------------
AttributeError Traceback (most recent call
last)
<ipython-input-2-fe3c73a77523> in <module>()
----> 1 loads(dumps(L))
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-
packages/sage/structure/sage_object.so in sage.structure.sage_object.loads
(sage/structure/sage_object.c:11044)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent.Parent.__call__ (sage/structure/parent.c:8316)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent.Parent.convert_map_from
(sage/structure/parent.c:16121)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent.Parent.discover_convert_map_from
(sage/structure/parent.c:162
86)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent.Parent.coerce_map_from
(sage/structure/parent.c:14849)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent._register_pair (sage/structure/parent.c:22017)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent.EltPair.__hash__ (sage/structure/parent.c:21664)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-
packages/sage/structure/category_object.so in
sage.structure.category_object.CategoryObject.__hash__ (sage/structure/cat
egory_object.c:8312)()
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-
packages/sage/rings/polynomial/laurent_polynomial_ring.pyc in
__repr__(self)
449 'Univariate Laurent Polynomial Ring in x over Rational
Field'
450 """
--> 451 if self._n == 1:
452 return "Univariate Laurent Polynomial Ring in %s over
%s"%(self._R.variable_name(), self._R.base_ring())
453 else:
/mnt/home/njsgxy8n/sage-5.12-linux-64bit-ubuntu_12.04.3_lts-
x86_64-Linux/local/lib/python2.7/site-packages/sage/structure/parent.so in
sage.structure.parent.Parent.__getattr__ (sage/structure/parent.c:6736)()
<type 'str'>: (<type 'exceptions.AttributeError'>,
AttributeError('LaurentPolynomialRing_mpair_with_category' object has no
attribute '_n',))
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/15437#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/groups/opt_out.
