#19397: Add support for homogeneous components of a filtered module
-------------------------------------+-------------------------------------
Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-6.10
Component: categories | Resolution:
Keywords: | Merged in:
Authors: Travis Scrimshaw | Reviewers: John Palmieri
Report Upstream: N/A | Work issues:
Branch: | Commit:
public/categories/homogeneous_components-19397|
068adf38ed5520faa0f31c34e6b3ef636d595bea
Dependencies: #17096 | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by vbraun):
* status: positive_review => needs_work
Comment:
{{{
sage -t --long src/sage/categories/filtered_modules_with_basis.py
**********************************************************************
File "src/sage/categories/filtered_modules_with_basis.py", line 160, in
sage.categories.filtered_modules_with_basis.FilteredModulesWithBasis.ParentMethods.basis
Failed example:
A.basis(4)
Expected:
Traceback (most recent call last):
...
AttributeError: 'IndexedFreeAbelianMonoid_with_category' object has no
attribute 'list'
Got:
<BLANKLINE>
Traceback (most recent call last):
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 496, in _run
self.compile_and_execute(example, compiler, test.globs)
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 858, in compile_and_execute
exec(compiled, globs)
File "<doctest
sage.categories.filtered_modules_with_basis.FilteredModulesWithBasis.ParentMethods.basis[5]>",
line 1, in <module>
A.basis(Integer(4))
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/categories/filtered_modules_with_basis.py", line 186, in
basis
return self.homogeneous_component_basis(d)
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/categories/filtered_modules_with_basis.py", line 215, in
homogeneous_component_basis
S = [i for i in list(self._indices) if self.degree_on_basis(i) ==
d]
File "sage/structure/parent.pyx", line 1548, in
sage.structure.parent.Parent.__len__ (/mnt/disk/home/buildslave-
sage/slave/sage_git/build/src/build/cythonized/sage/structure/parent.c:12470)
return len(self.list())
File "/mnt/disk/home/buildslave-
sage/slave/sage_git/build/local/lib/python2.7/site-
packages/sage/categories/infinite_enumerated_sets.py", line 76, in list
raise NotImplementedError("infinite list")
NotImplementedError: infinite list
**********************************************************************
1 item had failures:
1 of 10 in
sage.categories.filtered_modules_with_basis.FilteredModulesWithBasis.ParentMethods.basis
[214 tests, 1 failure, 0.75 s]
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/19397#comment:46>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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