[Debian-med-packaging] Bug#1092522: bmtk: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.12 3.13" returned exit code 13

[Étienne Mollier]

The following failure mode relates to HocObjects, which are
provided by the neuron package:
> > >           nseg = np.sum([s.nseg for s in self._hobj.all])
> > E           TypeError: Not an iterable HocObject
> > 
> > bmtk/simulator/bionet/morphology.py:117: TypeError

I observe that with python3.13, there is an error output about
neuron failing to find mechanisms in a directory that is
supposed to have some .mod files:
> > ============================= test session starts ==============================
> > platform linux -- Python 3.13.1, pytest-8.3.4, pluggy-1.5.0
> > rootdir: /build/reproducible-path/bmtk-1.1.1+ds
> > plugins: typeguard-4.4.1
> > NEURON mechanisms not found in /build/reproducible-path/bmtk-1.1.1+ds/.pybuild/cpython3_3.13/build/bmtk/tests/simulator/bionet/components/mechanisms.
> > collected 399 items / 1 skipped
> > 
> > bmtk/tests/builder/auxi/test_edge_connectors.py ..                       [  0%]

The failing test is related to the simulator bionet, which does
suggest that the neuron error at the beginning of the test may
be related:
> > bmtk/tests/simulator/bionet/test_morphology.py F.FFFs..FF                [ 28%]

In the meantime, there were no issues with python3.12:
> > ============================= test session starts ==============================
> > platform linux -- Python 3.12.8, pytest-8.3.4, pluggy-1.5.0
> > rootdir: /build/reproducible-path/bmtk-1.1.1+ds
> > plugins: typeguard-4.4.1
> > collected 361 items / 5 skipped
> > 
> > bmtk/tests/builder/auxi/test_edge_connectors.py ..                       [  0%]

I'm not sure of the root cause yet.  I don't witness differences
at the end of the build between the two mechanisms/ directories
between the python3.12 and python3.13 builds.  There could be
something about one of neuron or bmtk not supporting well
dealing with both Python version during the time of the
transition, but in this case 6 test failures out of 400 tests
seems a bit light.

Anyway, checkpointing my thoughts for future self or for others
benefit, have a nice day,  :)
-- 
  .''`.  Étienne Mollier <emollier at debian.org>
 : :' :  pgp: 8f91 b227 c7d6 f2b1 948c  8236 793c f67e 8f0d 11da
 `. `'   sent from /dev/pts/2, please excuse my verbosity
   `-    on air: Van der Graaf Generator - My Room (Waiting For…
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