On Sat, Apr 17, 2010 at 10:48:22PM +1000, Alex Ghitza wrote:
> On Sat, 17 Apr 2010 14:22:30 +0200, Florent Hivert
> <florent.hiv...@univ-rouen.fr> wrote:
> > > Unfortunately, there is a test that I'm not yet able to fix, namely
> > > _test_category for an element class we define. Let me try to say what
> > > the situation is without going into irrelevant details:
> > >
> > > * we have a class Parent_class which inherits from Algebra
> > > * we have a class Element_class which inherits from AlgebraElement
> > >
> > > Say e is an instance of Element_class. Running e._test_category() fails
> > > in the following place:
> > >
> > > if not is_extension_type(self.__class__):
> > > # For usual Python classes, that should be done with
> > > # standard inheritance
> > > tester.assert_(isinstance(self,
> > > self.parent().category().element_class))
> > >
> > > Here self.parent().category() is "Category of algebras over Integer
> > > Ring" and self.parent().category().element_class is
> > > "<class 'sage.categories.algebras.Algebras.element_class'>".
> >
> > Can you give the mro of e (the instance of Element_class) and the one of
> > parent.element_class ?
>
> OK, here is what I've got: (you won't be able to reproduce it exactly
> because SiegelModularFormsAlgebra is not in Sage yet)
>
> sage: p = SiegelModularFormsAlgebra()
> sage: e = p.0
> sage: isinstance(e, p.category().element_class)
> False
> sage: pmro = p.category().element_class.__mro__
> sage: emro = e.__mro__
> sage: pmro == emro
> True
> sage: pmro
> (<class 'sage.categories.algebras.Algebras.element_class'>,
> <class 'sage.categories.rings.Rings.element_class'>,
> <class 'sage.categories.rngs.Rngs.element_class'>,
> <class 'sage.categories.modules.Modules.element_class'>,
> <class 'sage.categories.bimodules.Bimodules.element_class'>,
> <class 'sage.categories.left_modules.LeftModules.element_class'>,
> <class 'sage.categories.right_modules.RightModules.element_class'>,
> <class
> 'sage.categories.commutative_additive_groups.CommutativeAdditiveGroups.element_class'>,
>
> <class
> 'sage.categories.commutative_additive_monoids.CommutativeAdditiveMonoids.element_class'>,
>
> <class
> 'sage.categories.commutative_additive_semigroups.CommutativeAdditiveSemigroups.element_class'>,
>
> <class 'sage.categories.monoids.Monoids.element_class'>,
> <class 'sage.categories.semigroups.Semigroups.element_class'>,
> <class 'sage.categories.sets_cat.Sets.element_class'>,
> <class 'sage.categories.objects.Objects.element_class'>,
> <type 'object'>)
Strange. Just to make 100% sure: can you give me the result of:
sage: e.__class__.mro()
sage: e.parent().category().element_class.mro()
Thanks,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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