To my mind, this is not the problem. The first command does generate a
warning (fine)
sage: E = Graph([('A','B'),(1,2)]).edges()
<ipython-input-1-28a7859d6cf7>:1: DeprecationWarning: parameter 'sort'
will be set to False by default in the future
See https://github.com/sagemath/sage/issues/27408 for details.
But the EdgesView.__repr__ is buggy (bad)
sage: E
<repr(<sage.graphs.views.EdgesView at 0x7fd82c935720>) failed:
TypeError: unsupported operand parent(s) for <: 'Integer Ring' and
'<class 'str'>'>
I think that either E is broken from start and an error should have
been raised in the first stage or everything is fine and we should
have a proper string representation.
On Wed, 5 Jul 2023 at 08:33, David Coudert <david.coud...@gmail.com> wrote:
>
> There is an active deprecation warning in method edges(). Parameter sort will
> be set to False in the future. I'm surprised you don't see it.
>
> sage: Graph([('A','B'),(1,2)]).edges()
> <ipython-input-1-266d02e19563>:1: DeprecationWarning: parameter 'sort' will
> be set to False by default in the future See
> https://github.com/sagemath/sage/issues/27408 for details.
> Graph([('A','B'),(Integer(1),Integer(2))]).edges()
> <repr(<sage.graphs.views.EdgesView at 0x1511698a0>) failed: TypeError:
> unsupported operand parent(s) for <: 'Integer Ring' and '<class 'str'>'>
>
>
> On Tuesday, July 4, 2023 at 4:29:21 PM UTC+2 Vincent Delecroix wrote:
>>
>> https://github.com/sagemath/sage/issues/35897
>>
>> On Tue, 4 Jul 2023 at 16:25, Vincent Delecroix
>> <20100.d...@gmail.com> wrote:
>> >
>> > This is a bug in the __repr__ method of EdgesView. Thanks for your report.
>> >
>> > On Tue, 4 Jul 2023 at 10:52, Georgi Guninski <ggun...@gmail.com> wrote:
>> > >
>> > > Graph([('A','B'),(1,2)]).edges()
>> > > <repr(<sage.graphs.views.EdgesView at 0x7fe9a43c0a00>) failed:
>> > > TypeError: unsupported operand parent(s) for <: 'Integer Ring' and
>> > > '<class 'str'>'>
>> > >
>> > > I think this is related to sorting the edges.
>> > >
>> > > The following works:
>> > > sage: Graph([("A",1),("B",2)]).edges()
>> > > [(1, 'A', None), (2, 'B', None)]
>> > >
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>
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