#14772: Remove CombinatorialClass from Permutations
-------------------------------------+-------------------------------------
Reporter: tscrim | Owner: sage-combinat
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.12
Component: combinatorics | Resolution:
Keywords: days49 | Merged in:
Authors: Travis Scrimshaw | Reviewers: Mike Hansen, Darij
Report Upstream: N/A | Grinberg, Jeff Ferreira
Branch: | Work issues:
Dependencies: #8386 #14519 | Commit:
#14808 #14143 #14015 #14516 | Stopgaps:
#14863 |
-------------------------------------+-------------------------------------
Comment (by zabrocki):
I'm glad that this is not intentional. I was worried that this patch made
more significant changes to the use of the {{{Permutation}}} class.
{{{
sage: Permutation([3,2,1])
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
<ipython-input-1-b3e6779bea6e> in <module>()
----> 1 Permutation([Integer(3),Integer(2),Integer(1)])
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/misc/classcall_metaclass.so in
sage.misc.classcall_metaclass.ClasscallMetaclass.__call__
(sage/misc/classcall_metaclass.c:1224)()
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/combinat/permutation.pyc in __classcall_private__(cls, l,
check_input)
499
500 # otherwise, it gets processed by CombinatorialObject's
__init__.
--> 501 return Permutations()(l, check_input=check_input)
502
503 def __init__(self, parent, l, check_input=True):
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/structure/parent.so in sage.structure.parent.Parent.__call__
(sage/structure/parent.c:8154)()
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/structure/coerce_maps.so in
sage.structure.coerce_maps.DefaultConvertMap_unique._call_with_args
(sage/structure/coerce_maps.c:4278)()
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/structure/coerce_maps.so in
sage.structure.coerce_maps.DefaultConvertMap_unique._call_with_args
(sage/structure/coerce_maps.c:4089)()
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/categories/sets_cat.pyc in
_element_constructor_from_element_class(self, *args, **keywords)
337 17
338 """
--> 339 return self.element_class(parent = self, *args,
**keywords)
340
341 def is_parent_of(self, element):
/Applications/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/misc/classcall_metaclass.so in
sage.misc.classcall_metaclass.ClasscallMetaclass.__call__
(sage/misc/classcall_metaclass.c:1243)()
TypeError: __init__() got multiple values for keyword argument 'parent'
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/14772#comment:61>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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