#8807: Adding support for morphisms to the category framework
---------------------------+------------------------------------------------
Reporter: SimonKing | Owner: Simon King
Type: enhancement | Status: needs_work
Priority: major | Milestone:
Component: categories | Keywords: morphisms functors categories
Author: Simon King | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
---------------------------+------------------------------------------------
Changes (by was):
* status: needs_review => needs_work
Comment:
I applied this patch to sage-4.5, and ran "make ptestlong", and their are
failures all over the place, e.g.,
{{{
wst...@sage:~/build/sage-4.5.alphastein1$ ./sage -t -long
devel/sage/sage/matrix/misc.pyx
sage -t -long "devel/sage/sage/matrix/misc.pyx"
**********************************************************************
File
"/mnt/usb1/scratch/wstein/build/sage-4.5.alphastein1/devel/sage/sage/matrix/misc.pyx",
line 67:
sage: B = ((matrix(ZZ, 3,4,
[1,2,3,-4,7,2,18,3,4,3,4,5])/3)%500).change_ring(ZZ)
Exception raised:
Traceback (most recent call last):
File
"/mnt/usb1/scratch/wstein/build/sage-4.5.alphastein1/local/bin/ncadoctest.py",
line 1231, in run_one_test
self.run_one_example(test, example, filename, compileflags)
File
"/mnt/usb1/scratch/wstein/build/sage-4.5.alphastein1/local/bin/sagedoctest.py",
line 38, in run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File
"/mnt/usb1/scratch/wstein/build/sage-4.5.alphastein1/local/bin/ncadoctest.py",
line 1172, in run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_1[2]>", line 1, in <module>
B = ((matrix(ZZ, Integer(3),Integer(4),
[Integer(1),Integer(2),Integer(3),-Integer(4),Integer(7),Integer(2),Integer(18),Integer(3),Inte
ger(4),Integer(3),Integer(4),Integer(5)])/Integer(3))%Integer(500)).change_ring(ZZ)###line
67:
sage: B = ((matrix(ZZ, 3,4,
[1,2,3,-4,7,2,18,3,4,3,4,5])/3)%500).change_ring(ZZ)
File "element.pyx", line 1529, in
sage.structure.element.RingElement.__div__
(sage/structure/element.c:11992)
File "coerce.pyx", line 765, in
sage.structure.coerce.CoercionModel_cache_maps.bin_op
(sage/structure/coerce.c:6966)
TypeError: unsupported operand parent(s) for '/': 'Full MatrixSpace of
3 by 4 dense matrices over Integer Ring' and 'Integer Ring'
...
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8807#comment:2>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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