#3740: pickling broken for TensorProductOfCrystals
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Reporter: was | Owner: cwitty
Type: defect | Status: new
Priority: blocker | Milestone: sage-3.2.1
Component: misc | Resolution:
Keywords: |
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Changes (by mabshoff):
* cc: mhansen (added)
* summary: sage-3.0.6 blocker -- pickle jar -- exactly one failure =>
pickling broken for TensorProductOfCrystals
Old description:
> {{{
> sage: sage.structure.sage_object.unpickle_all('pickle_jar-3.0.3')
> ** failed:
> _class__sage_combinat_crystals_tensor_product_TensorProductOfCrystals__.sobj
> Failed:
> _class__sage_combinat_crystals_tensor_product_TensorProductOfCrystals__.sobj
> Successfully unpickled 355 objects.
> Failed to unpickle 1 objects.
> }}}
>
> Email to sage-combinat-devel:
> {{{
> Hi,
>
> The only object from sage-3.0.3 that doesn't unpickle in sage-3.0.3.final
> is
>
> -----------------------
> sage: sage.structure.sage_object.unpickle_all('pickle_jar-3.0.3')
> ** failed:
> _class__sage_combinat_crystals_tensor_product_TensorProductOfCrystals__.sobj
> Failed:
> _class__sage_combinat_crystals_tensor_product_TensorProductOfCrystals__.sobj
> Successfully unpickled 355 objects.
> Failed to unpickle 1 objects.
> -----------------------
>
> I don't know anything about the stability of TensorProductOfCrystals.
> I've attached the sobj
> that doesn't unpickle. This was pickled using sage-3.0.3 because of a
> loads/dumps doctest.
> Please clarify if you want to fix this problem ASAP, or consider this to
> be a nonissue because
> you consider that particular code unstable.
>
> -- William
> }}}
New description:
I have change the summary of this ticket since the original error is no
longer something that happens with the current pickle jar. But as Dan Bump
pointed out below:
{{{
sage: C = CrystalOfLetters(['A',3])
sage: v = C.list()[0]
sage: T = TensorProductOfCrystals(C, C, generators=[[v,v]])
sage: T == loads(dumps(T))
}}}
raises an exception.
Cheers,
Michael
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/3740#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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