[Debian-science-sagemath] sagemath and Python 3

[Tobias Hansen]

On 9/6/19 2:10 PM, Tobias Hansen wrote:
> On 9/6/19 1:30 PM, Dima Pasechnik wrote:
>> On Fri, Sep 6, 2019 at 12:23 PM Tobias Hansen <thansen at debian.org> wrote:
>>> On 9/4/19 8:55 PM, Julien Puydt wrote:
>>>> Hi,
>>>>
>>>> Le 04/09/2019 à 18:25, Tobias Hansen a écrit :
>>>>
>>>>> It seems that the only dependency that needs to be changed is pynac. It is currently linked to libpython2.7 and this causes a segfault in sage. It can be switched to Python 3 by changing the Build-Dependency to python3-dev and passing PYTHON=python3 to configure. However, that seems to require a soname change (especially because the current one was also used in buster), so what do we do, custom soname until the next time upstream bumps it?
>>>> I choose to ask upstream: https://github.com/pynac/pynac/issues/346 !
>>>>
>>>> JP
>>> I pushed the changes to the git repo. I could use some help figuring out the reasons for the ~126 failing doctests.
>>>
>>> Another issue is that the build log is 25 MB big because the docbuild prints this message all over:
>>>
>>> RemovedInSphinx20Warning: formatargspec() is now deprecated.  Please use sphinx.util.inspect.Signature instead.
>>>
>> Aren't you far behind the develop branch? Note that Sage 8.8 is far
>> from being fully ported to Python 3.
>> Sage 8.9.beta9 is much closer. (and this warning is gone too)
>>
>> Dima
>
> Ok, thanks for the hint. I think I will just try the beta then.
>
> The (almost) finished Python 3 port is coming just at the right time. The Python 2 removal in Debian has begun and sage is blocking lots of Python 2 packages from being removed. And even though this was not supposed to happen, the first Python 2 dependencies of sage were already removed from Debian.
>
> Best,
>
> Tobias


Updating sagemath to 8.9.beta9 improved things. There are now 48 failing tests. The log is at [1]. Does anything look familiar to someone?

Apart from the pynac rebuild this requires updated versions of givaro, fflas-ffpack and linbox.

We should also update three.js to r100. 3d plots don't work, probably because of the version mismatch.

Best,

Tobias

[1] https://salsa.debian.org/science-team/sagemath/snippets/324