#10962: Set_PythonType objects are not picklable
-------------------------------------+-------------------------------------
Reporter: stumpc5 | Owner: was
Type: defect | Status: needs_review
Priority: major | Milestone:
Component: pickling | Resolution:
Keywords: | Merged in:
Authors: Vincent Delecroix | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/jdemeyer/ticket/10962 | 2908e5797bb558895695abd5443ad718cc14d5fb
Dependencies: | Stopgaps:
-------------------------------------+-------------------------------------
Changes (by jdemeyer):
* commit: 97f39849ff27767c6a99608d3a29db9b5738ae01 =>
2908e5797bb558895695abd5443ad718cc14d5fb
Comment:
I confirm the unpickling error, it is due to
{{{
TypeError Traceback (most recent call
last)
<ipython-input-3-d62ad2672fb4> in <module>()
----> 1
load('/home/jdemeyer/.sage/temp/tamiyo/6215/dir_LJVs2X//pickle_jar/_class__sage_groups_matrix_gps_matrix_group_element_MatrixGroupElement__.sobj')
/usr/local/src/sage-config/src/sage/structure/sage_object.pyx in
sage.structure.sage_object.load
(build/cythonized/sage/structure/sage_object.c:11233)()
945
946 ## Load file by absolute filename
--> 947 X = loads(open(filename).read(), compress=compress)
948 try:
949 X._default_filename = os.path.abspath(filename)
/usr/local/src/sage-config/src/sage/structure/sage_object.pyx in
sage.structure.sage_object.loads
(build/cythonized/sage/structure/sage_object.c:13238)()
1319 unpickler.find_global = unpickle_global
1320
-> 1321 return unpickler.load()
1322
1323
/usr/local/src/sage-config/local/lib/python2.7/site-
packages/sage/groups/matrix_gps/pickling_overrides.pyc in
__setstate__(self, state)
36 degree = state['_MatrixGroup_gap__n']
37 from sage.libs.all import libgap
---> 38 libgap_group = libgap.Group(libgap(matrix_gens))
39 self.__init__(degree, ring, libgap_group)
40
/usr/local/src/sage-config/src/sage/structure/parent.pyx in
sage.structure.parent.Parent.__call__
(build/cythonized/sage/structure/parent.c:9585)()
1102 mor = <map.Map> self._convert_from_hash.get(R)
1103 except KeyError:
-> 1104 mor = <map.Map> self._internal_convert_map_from(R)
1105
1106 if mor is not None:
/usr/local/src/sage-config/src/sage/structure/parent.pyx in
sage.structure.parent.Parent._internal_convert_map_from
(build/cythonized/sage/structure/parent.c:19460)()
2581 return self._convert_from_hash.get(S)
2582 except KeyError:
-> 2583 mor = self.discover_convert_map_from(S)
2584 # Before trac #14711, the morphism has been
2585 # put both into _convert_from_list and into
/usr/local/src/sage-config/src/sage/structure/parent.pyx in
sage.structure.parent.Parent.discover_convert_map_from
(build/cythonized/sage/structure/parent.c:20064)()
2624 from sage.structure.coerce_maps import ListMorphism
2625 if isinstance(S, Sequences):
-> 2626 return ListMorphism(S,
self.convert_map_from(list))
2627
2628 mor = self._generic_convert_map(S)
/usr/local/src/sage-config/src/sage/structure/coerce_maps.pyx in
sage.structure.coerce_maps.ListMorphism.__init__
(build/cythonized/sage/structure/coerce_maps.c:8911)()
529 def __init__(self, domain, Map real_morphism):
530 if not PY_TYPE_CHECK(domain, Parent):
--> 531 domain = Set_PythonType(domain)
532 Map.__init__(self, domain, real_morphism.codomain())
533 self._coerce_cost = real_morphism._coerce_cost + 3
/usr/local/src/sage-config/src/sage/structure/parent.pyx in
sage.structure.parent.Set_PythonType
(build/cythonized/sage/structure/parent.c:24290)()
2990 cdef _type_set_cache = {}
2991
-> 2992 cpdef Parent Set_PythonType(theType):
2993 """
2994 Return the (unique) Parent that represents the set of Python
objects
/usr/local/src/sage-config/src/sage/structure/parent.pyx in
sage.structure.parent.Set_PythonType
(build/cythonized/sage/structure/parent.c:24199)()
3021 return _type_set_cache[theType]
3022 except KeyError:
-> 3023 _type_set_cache[theType] = theSet =
Set_PythonType_class(theType)
3024 return theSet
3025
/usr/local/src/sage-config/src/sage/structure/parent.pyx in
sage.structure.parent.Set_PythonType_class.__init__
(build/cythonized/sage/structure/parent.c:24417)()
3055 """
3056 if not isinstance(theType, type):
-> 3057 raise TypeError("must be intialized with a type, not
%r" % theType)
3058 Set_generic.__init__(self, element_constructor=theType,
category=Sets())
3059 self._type = theType
TypeError: must be intialized with a type, not Category of sequences in
Full MatrixSpace of 2 by 2 dense matrices over Finite Field of size 3
}}}
----
New commits:
||[http://git.sagemath.org/sage.git/commit/?id=2908e5797bb558895695abd5443ad718cc14d5fb
2908e57]||{{{Remove useless C/API calls}}}||
--
Ticket URL: <http://trac.sagemath.org/ticket/10962#comment:12>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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