#7922: Pickling fails in WeightRing
-----------------------------+----------------------------------------------
Reporter: nthiery | Owner: bump
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.7
Component: combinatorics | Keywords:
Author: | Upstream: N/A
Reviewer: nthiery | Merged:
Work_issues: |
-----------------------------+----------------------------------------------
Old description:
> First issue caught by #7921:
>
> {{{
> sage: A2 = WeylCharacterRing(['A',2])
> sage: a2 = WeightRing(A2)
> sage: TestSuite(a2).run()
> Failure in _test_element_pickling:
> Traceback (most recent call last):
> ...
> AssertionError: 2*a2(0,0,0) != 2*a2(0,0,0)
> }}}
>
> Indeed:
> {{{
> sage: x = a2.an_element()
> sage: x == loads(dumps(x))
> False
> }}}
>
> I assume that this is an issue in equality test. This should be fixed for
> free when WeightRing's will use CombinatorialFreeModules
> and categories.
>
> '''Apply''' [attachment: trac_7922-rebased-4.7.alpha2.patch]
>
> '''Remove''' the following pickles from the pickle jar:
>
> _class__sage_combinat_root_system_weyl_characters_WeightRing__.*
> _class__sage_combinat_root_system_weyl_characters_WeylCharacterRing_class__.*
> _class__sage_combinat_root_system_weyl_characters_WeylCharacter__.*
>
> '''Copy''' the contents of [attachment: new_pickles.tar.gz] into
> {{{data/ext_code/pickle_jar}}}.
New description:
First issue caught by #7921:
{{{
sage: A2 = WeylCharacterRing(['A',2])
sage: a2 = WeightRing(A2)
sage: TestSuite(a2).run()
Failure in _test_element_pickling:
Traceback (most recent call last):
...
AssertionError: 2*a2(0,0,0) != 2*a2(0,0,0)
}}}
Indeed:
{{{
sage: x = a2.an_element()
sage: x == loads(dumps(x))
False
}}}
I assume that this is an issue in equality test. This should be fixed for
free when WeightRing's will use CombinatorialFreeModules
and categories.
'''Apply''' [attachment: trac_7922-rebased-4.7.alpha2.patch]
'''Remove''' the following pickles from the pickle jar:
_class__sage_combinat_root_system_weyl_characters_WeightRing__.*
_class__sage_combinat_root_system_weyl_characters_WeylCharacterRing_class__.*
_class__sage_combinat_root_system_weyl_characters_WeylCharacter__.*
'''Copy''' the contents of
[attachment: trac_7922-new_pickles.tar.gz] into
{{{data/ext_code/pickle_jar}}}.
--
Comment(by bump):
The revised patch [attachment:trac_7922-rebased-4.7.alpha2] includes the
revised coercion mechanism and other changes proposed by Nicolas.
In view of this message:
http://trac.sagemath.org/sage_trac/ticket/10354#comment:11
I posted a tarball containing only the new pickles, and a list of obsolete
pickles to be discarded.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7922#comment:12>
Sage <http://www.sagemath.org>
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