[Debian-astro-maintainers] Bug#1126250: specutils: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.14 3.13" returned exit code 13

[Santiago Vila]

Package: src:specutils
Version: 2.2.0-1
Severity: serious
Tags: ftbfs forky sid

Dear maintainer:

During a rebuild of all packages in unstable, this package failed to build.

Below you will find the last part of the build log (probably the most
relevant part, but not necessarily). If required, the full build log
is available here:

https://people.debian.org/~sanvila/build-logs/202601/

About the archive rebuild: The build was made on virtual machines from AWS,
using sbuild and a reduced chroot with only build-essential packages.

If you cannot reproduce the bug please contact me privately, as I
am willing to provide ssh access to a virtual machine where the bug is
fully reproducible.

If this is really a bug in one of the build-depends, please use
reassign and add an affects on src:specutils, so that this is still
visible in the BTS web page for this package.

Thanks.

--------------------------------------------------------------------------------
[...]
 debian/rules clean
dh clean --with python3 --buildsystem=pybuild
   dh_auto_clean -O--buildsystem=pybuild
I: pybuild base:384: python3.14 setup.py clean 
/usr/lib/python3/dist-packages/setuptools/dist.py:759: SetuptoolsDeprecationWarning: License classifiers are deprecated.
!!

        ********************************************************************************
        Please consider removing the following classifiers in favor of a SPDX license expression:

        License :: OSI Approved :: BSD License

        See https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#license for details.
        ********************************************************************************


[... snipped ...]

..........................s............................................. [ 49%]
..........................................................ssssssssssssss [ 60%]
s.ssssssssssssssssssssssssssssssssssssssssssssssssss                     [ 67%]
specutils/tests/test_manipulation.py ...                                 [ 68%]
specutils/tests/test_model_replace.py .....                              [ 68%]
specutils/tests/test_region_extract.py ..................                [ 71%]
specutils/tests/test_regions.py ................                         [ 73%]
specutils/tests/test_resample.py ..............xFF....                   [ 76%]
specutils/tests/test_slicing.py ....                                     [ 77%]
specutils/tests/test_smoothing.py ........................               [ 80%]
specutils/tests/test_spectral_axis.py s................................. [ 85%]
.......................                                                  [ 89%]
specutils/tests/test_spectral_region.py ..                               [ 89%]
specutils/tests/test_spectrum1d.py .........FF.............s........     [ 94%]
specutils/tests/test_spectrum1d_unit_pix2.py ..                          [ 94%]
specutils/tests/test_spectrum_collection.py .........                    [ 95%]
specutils/tests/test_template_comparison.py .............                [ 97%]
specutils/tests/test_unc.py .x.                                          [ 97%]
specutils/tests/test_utils.py ..............                             [100%]

=================================== FAILURES ===================================
__________ test_resample_different_units[LinearInterpolatedResampler] __________

all_resamplers = <class 'specutils.manipulation.resample.LinearInterpolatedResampler'>

    def test_resample_different_units(all_resamplers):
        input_spectrum = Spectrum(spectral_axis=[5000, 6000, 7000] * u.AA,
                                    flux=[1, 2, 3] * u.mJy)
        resampler = all_resamplers("nan_fill")
        if all_resamplers == FluxConservingResampler:
            pytest.xfail('flux conserving resampler cannot yet handle differing units')
    
        resamp_grid = [5500, 6500]*u.nm
        resampled = resampler(input_spectrum, resamp_grid)
        assert np.all(np.isnan(resampled.flux))
    
        resamp_grid = [550, 650]*u.nm
        resampled = resampler(input_spectrum, resamp_grid)
        assert not np.any(np.isnan(resampled.flux))
    
        resamp_grid = [550, 650]*u.nm
        resampled = resampler(input_spectrum, resamp_grid)
    
        # Test conversion to velocity grid
        rest_wavelength = 656.2 * u.nm
        wavelengths = np.linspace(640, 672, 10) * u.nm
        flux = np.ones(10) * u.mJy
        spec1d = Spectrum(spectral_axis=wavelengths, velocity_convention="optical", flux=flux)
        spec1d.spectral_axis.doppler_rest = rest_wavelength
    
        velocities = np.linspace(-1000, 1000, 5) * u.km/u.s
        velocity_grid = SpectralAxis(velocities, doppler_rest=rest_wavelength,
                                     doppler_convention="optical")
>       velocity_binned = resampler(spec1d, velocity_grid)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

specutils/tests/test_resample.py:230: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
specutils/manipulation/resample.py:36: in __call__
    return self.resample1d(orig_spectrum, fin_spec_axis)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
specutils/manipulation/resample.py:385: in resample1d
    return Spectrum(spectral_axis=fin_spec_axis,
specutils/spectra/spectrum.py:339: in __init__
    wcs = gwcs_from_array(self._spectral_axis,
specutils/utils/wcs_utils.py:295: in gwcs_from_array
    spectral_frame = cf.SpectralFrame(unit=array.unit, axes_order=(spectral_axis_index,),
/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:44: in __init__
    pht = axis_physical_types or self._default_axis_physical_types(unit)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <[AttributeError("'SpectralFrame' object has no attribute '_name'") raised in repr()] SpectralFrame object at 0x7fc1cc6e1940>
unit = [Unit("km / s")]

    def _default_axis_physical_types(self, unit):
        if unit[0].physical_type == "frequency":
            return ("em.freq",)
        if unit[0].physical_type == "length":
            return ("em.wl",)
        if unit[0].physical_type == "energy":
            return ("em.energy",)
        if unit[0].physical_type == "speed":
>           warnings.warn(
                "Physical type may be ambiguous. Consider "
                "setting the physical type explicitly as "
                "either 'spect.dopplerVeloc.optical' or "
                "'spect.dopplerVeloc.radio'."
            )
E           UserWarning: Physical type may be ambiguous. Consider setting the physical type explicitly as either 'spect.dopplerVeloc.optical' or 'spect.dopplerVeloc.radio'.

/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:65: UserWarning
__________ test_resample_different_units[SplineInterpolatedResampler] __________

all_resamplers = <class 'specutils.manipulation.resample.SplineInterpolatedResampler'>

    def test_resample_different_units(all_resamplers):
        input_spectrum = Spectrum(spectral_axis=[5000, 6000, 7000] * u.AA,
                                    flux=[1, 2, 3] * u.mJy)
        resampler = all_resamplers("nan_fill")
        if all_resamplers == FluxConservingResampler:
            pytest.xfail('flux conserving resampler cannot yet handle differing units')
    
        resamp_grid = [5500, 6500]*u.nm
        resampled = resampler(input_spectrum, resamp_grid)
        assert np.all(np.isnan(resampled.flux))
    
        resamp_grid = [550, 650]*u.nm
        resampled = resampler(input_spectrum, resamp_grid)
        assert not np.any(np.isnan(resampled.flux))
    
        resamp_grid = [550, 650]*u.nm
        resampled = resampler(input_spectrum, resamp_grid)
    
        # Test conversion to velocity grid
        rest_wavelength = 656.2 * u.nm
        wavelengths = np.linspace(640, 672, 10) * u.nm
        flux = np.ones(10) * u.mJy
        spec1d = Spectrum(spectral_axis=wavelengths, velocity_convention="optical", flux=flux)
        spec1d.spectral_axis.doppler_rest = rest_wavelength
    
        velocities = np.linspace(-1000, 1000, 5) * u.km/u.s
        velocity_grid = SpectralAxis(velocities, doppler_rest=rest_wavelength,
                                     doppler_convention="optical")
>       velocity_binned = resampler(spec1d, velocity_grid)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

specutils/tests/test_resample.py:230: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
specutils/manipulation/resample.py:36: in __call__
    return self.resample1d(orig_spectrum, fin_spec_axis)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
specutils/manipulation/resample.py:478: in resample1d
    return Spectrum(spectral_axis=fin_spec_axis,
specutils/spectra/spectrum.py:339: in __init__
    wcs = gwcs_from_array(self._spectral_axis,
specutils/utils/wcs_utils.py:295: in gwcs_from_array
    spectral_frame = cf.SpectralFrame(unit=array.unit, axes_order=(spectral_axis_index,),
/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:44: in __init__
    pht = axis_physical_types or self._default_axis_physical_types(unit)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <[AttributeError("'SpectralFrame' object has no attribute '_name'") raised in repr()] SpectralFrame object at 0x7fc1cd2a15c0>
unit = [Unit("km / s")]

    def _default_axis_physical_types(self, unit):
        if unit[0].physical_type == "frequency":
            return ("em.freq",)
        if unit[0].physical_type == "length":
            return ("em.wl",)
        if unit[0].physical_type == "energy":
            return ("em.energy",)
        if unit[0].physical_type == "speed":
>           warnings.warn(
                "Physical type may be ambiguous. Consider "
                "setting the physical type explicitly as "
                "either 'spect.dopplerVeloc.optical' or "
                "'spect.dopplerVeloc.radio'."
            )
E           UserWarning: Physical type may be ambiguous. Consider setting the physical type explicitly as either 'spect.dopplerVeloc.optical' or 'spect.dopplerVeloc.radio'.

/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:65: UserWarning
________________________ test_spectral_axis_conversions ________________________

    def test_spectral_axis_conversions():
        # By default the spectral axis units should be set to angstroms
        spec = Spectrum(flux=np.array([26.0, 44.5]) * u.Jy,
                          spectral_axis=np.array([400, 500]) * u.AA)
    
        assert np.all(spec.spectral_axis == np.array([400, 500]) * u.angstrom)
        assert spec.spectral_axis.unit == u.angstrom
    
        flux = np.ones(49) * u.Jy
        spec = Spectrum(spectral_axis=np.arange(flux.size) * u.AA, flux=flux)
    
        assert spec.wavelength.unit == u.AA
    
        spec = Spectrum(spectral_axis=np.arange(1, 50) * u.nm, flux=flux)
    
        assert spec.frequency.unit == u.GHz
    
        with pytest.raises(ValueError):
            spec.velocity
    
        spec = Spectrum(spectral_axis=np.arange(100, 150) * u.nm, flux=flux)
    
>       new_spec = spec.with_spectral_axis_unit(u.km / u.s, rest_value=125 * u.um,
                                                velocity_convention="relativistic")

specutils/tests/test_spectrum1d.py:186: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
specutils/spectra/spectrum_mixin.py:245: in with_spectral_axis_unit
    return self.__class__(flux=self.flux, spectral_axis=new_spectral_axis, meta=meta,
specutils/spectra/spectrum.py:339: in __init__
    wcs = gwcs_from_array(self._spectral_axis,
specutils/utils/wcs_utils.py:295: in gwcs_from_array
    spectral_frame = cf.SpectralFrame(unit=array.unit, axes_order=(spectral_axis_index,),
/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:44: in __init__
    pht = axis_physical_types or self._default_axis_physical_types(unit)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <[AttributeError("'SpectralFrame' object has no attribute '_name'") raised in repr()] SpectralFrame object at 0x7fc1cc6b5080>
unit = [Unit("km / s")]

    def _default_axis_physical_types(self, unit):
        if unit[0].physical_type == "frequency":
            return ("em.freq",)
        if unit[0].physical_type == "length":
            return ("em.wl",)
        if unit[0].physical_type == "energy":
            return ("em.energy",)
        if unit[0].physical_type == "speed":
>           warnings.warn(
                "Physical type may be ambiguous. Consider "
                "setting the physical type explicitly as "
                "either 'spect.dopplerVeloc.optical' or "
                "'spect.dopplerVeloc.radio'."
            )
E           UserWarning: Physical type may be ambiguous. Consider setting the physical type explicitly as either 'spect.dopplerVeloc.optical' or 'spect.dopplerVeloc.radio'.

/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:65: UserWarning
___________________ test_spectral_axis_and_flux_conversions ____________________

    def test_spectral_axis_and_flux_conversions():
        """A little bit from both sets of tests."""
        spec = Spectrum(spectral_axis=np.arange(100, 150) * u.nm,
                          flux=np.ones(49) * u.Jy)
    
>       new_spec = spec.with_spectral_axis_and_flux_units(
            u.km / u.s, u.uJy, rest_value=125 * u.um, velocity_convention="relativistic")

specutils/tests/test_spectrum1d.py:213: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
specutils/spectra/spectrum_mixin.py:260: in with_spectral_axis_and_flux_units
    new_spec = self.with_spectral_axis_unit(
specutils/spectra/spectrum_mixin.py:245: in with_spectral_axis_unit
    return self.__class__(flux=self.flux, spectral_axis=new_spectral_axis, meta=meta,
specutils/spectra/spectrum.py:339: in __init__
    wcs = gwcs_from_array(self._spectral_axis,
specutils/utils/wcs_utils.py:295: in gwcs_from_array
    spectral_frame = cf.SpectralFrame(unit=array.unit, axes_order=(spectral_axis_index,),
/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:44: in __init__
    pht = axis_physical_types or self._default_axis_physical_types(unit)
                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <[AttributeError("'SpectralFrame' object has no attribute '_name'") raised in repr()] SpectralFrame object at 0x7fc1cc6772a0>
unit = [Unit("km / s")]

    def _default_axis_physical_types(self, unit):
        if unit[0].physical_type == "frequency":
            return ("em.freq",)
        if unit[0].physical_type == "length":
            return ("em.wl",)
        if unit[0].physical_type == "energy":
            return ("em.energy",)
        if unit[0].physical_type == "speed":
>           warnings.warn(
                "Physical type may be ambiguous. Consider "
                "setting the physical type explicitly as "
                "either 'spect.dopplerVeloc.optical' or "
                "'spect.dopplerVeloc.radio'."
            )
E           UserWarning: Physical type may be ambiguous. Consider setting the physical type explicitly as either 'spect.dopplerVeloc.optical' or 'spect.dopplerVeloc.radio'.

/usr/lib/python3/dist-packages/gwcs/coordinate_frames/_spectral.py:65: UserWarning
=========================== short test summary info ============================
FAILED specutils/tests/test_resample.py::test_resample_different_units[LinearInterpolatedResampler] - UserWarning: Physical type may be ambiguous. Consider setting the physical ...
FAILED specutils/tests/test_resample.py::test_resample_different_units[SplineInterpolatedResampler] - UserWarning: Physical type may be ambiguous. Consider setting the physical ...
FAILED specutils/tests/test_spectrum1d.py::test_spectral_axis_conversions - UserWarning: Physical type may be ambiguous. Consider setting the physical ...
FAILED specutils/tests/test_spectrum1d.py::test_spectral_axis_and_flux_conversions - UserWarning: Physical type may be ambiguous. Consider setting the physical ...
============ 4 failed, 549 passed, 133 skipped, 9 xfailed in 15.36s ============
E: pybuild pybuild:483: test: plugin distutils failed with: exit code=1: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.13/build; python3.13 -m pytest --remote-data=none --doctest-rst
dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.14 3.13" returned exit code 13
make: *** [debian/rules:9: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess failed with exit status 2
--------------------------------------------------------------------------------