[Debian-astro-maintainers] Bug#976537: specutils: FTBFS: dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.8 3.9" returned exit code 13

Lucas Nussbaum lucas at debian.org
Sat Dec 5 13:28:25 GMT 2020


Source: specutils
Version: 1.1-2
Severity: serious
Justification: FTBFS on arm64
Tags: bullseye sid ftbfs
Usertags: ftbfs-20201205 ftbfs-bullseye

Hi,

During a rebuild of all packages in sid, your package failed to build
on arm64 (I don't know if it also fails on amd64).

Relevant part (hopefully):
> dpkg-buildpackage
> -----------------
> 
> Command: dpkg-buildpackage -us -uc -sa -rfakeroot
> dpkg-buildpackage: info: source package specutils
> dpkg-buildpackage: info: source version 1.1-2
> dpkg-buildpackage: info: source distribution unstable
> dpkg-buildpackage: info: source changed by Ole Streicher <olebole at debian.org>
>  dpkg-source --before-build .
> dpkg-buildpackage: info: host architecture arm64
>  debian/rules clean
> dh clean --with python3 --buildsystem=pybuild
>    dh_auto_clean -O--buildsystem=pybuild
> I: pybuild base:232: python3.8 setup.py clean --use-system-astropy-helpers
> running clean
> removing '/<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build' (and everything under it)
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:161: AstropyDeprecationWarning: The package argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The package argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:166: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:171: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:186: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:239: AstropyDeprecationWarning: The packagename argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The packagename argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:244: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:249: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:264: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> 'build/bdist.linux-arm64' does not exist -- can't clean it
> 'build/scripts-3.8' does not exist -- can't clean it
> I: pybuild base:232: python3.9 setup.py clean --use-system-astropy-helpers
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:161: AstropyDeprecationWarning: The package argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The package argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:166: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:171: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:186: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:239: AstropyDeprecationWarning: The packagename argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The packagename argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:244: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:249: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:264: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> running clean
> removing '/<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build' (and everything under it)
> 'build/bdist.linux-arm64' does not exist -- can't clean it
> 'build/scripts-3.9' does not exist -- can't clean it
>    dh_autoreconf_clean -O--buildsystem=pybuild
>    dh_clean -O--buildsystem=pybuild
>  dpkg-source -b .
> dpkg-source: info: using source format '3.0 (quilt)'
> dpkg-source: info: building specutils using existing ./specutils_1.1.orig.tar.gz
> dpkg-source: info: using patch list from debian/patches/series
> dpkg-source: warning: ignoring deletion of file specutils/version.py, use --include-removal to override
> dpkg-source: info: building specutils in specutils_1.1-2.debian.tar.xz
> dpkg-source: info: building specutils in specutils_1.1-2.dsc
>  debian/rules binary
> dh binary --with python3 --buildsystem=pybuild
>    dh_update_autotools_config -O--buildsystem=pybuild
>    dh_autoreconf -O--buildsystem=pybuild
>    dh_auto_configure -O--buildsystem=pybuild
> I: pybuild base:232: python3.8 setup.py config 
> Download error on https://pypi.python.org/simple/astropy-helpers/: [Errno 111] Connection refused -- Some packages may not be found!
> Download error on https://pypi.python.org/simple/: [Errno 111] Connection refused -- Some packages may not be found!
> Freezing version number to ./specutils/version.py
> running config
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:163: AstropyDeprecationWarning: The package argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The package argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:168: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:173: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:188: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:242: AstropyDeprecationWarning: The packagename argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The packagename argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:247: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:252: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:267: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/git_helpers.py:114: UserWarning: Error running git: [Errno 2] No such file or directory: 'git'
>   warnings.warn('Error running git: ' + str(e))
> I: pybuild base:232: python3.9 setup.py config 
> Download error on https://pypi.python.org/simple/astropy-helpers/: [Errno 111] Connection refused -- Some packages may not be found!
> Download error on https://pypi.python.org/simple/: [Errno 111] Connection refused -- Some packages may not be found!
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:163: AstropyDeprecationWarning: The package argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The package argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:168: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:173: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/setup_helpers.py:188: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:242: AstropyDeprecationWarning: The packagename argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The packagename argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:247: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:252: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /<<PKGBUILDDIR>>/astropy_helpers/astropy_helpers/version_helpers.py:267: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> running config
>    dh_auto_build -O--buildsystem=pybuild
> I: pybuild base:232: /usr/bin/python3.8 setup.py build --use-system-astropy-helpers
> running build
> running build_py
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils
> copying specutils/version.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils
> copying specutils/_astropy_init.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils
> copying specutils/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils
> copying specutils/conftest.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io
> copying specutils/io/parsing_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io
> copying specutils/io/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io
> copying specutils/io/_list_of_loaders.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io
> copying specutils/io/registers.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/spectrum_mixin.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/spectral_region.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/spectrum1d.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/spectrum_list.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/spectrum_collection.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> copying specutils/spectra/spectral_axis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/spectra
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/fitting
> copying specutils/fitting/continuum.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/fitting
> copying specutils/fitting/fitmodels.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/fitting
> copying specutils/fitting/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/fitting
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/utils
> copying specutils/utils/quantity_model.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/utils
> copying specutils/utils/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/utils
> copying specutils/utils/wcs_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/utils
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_manipulation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_spectrum1d.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_spectral_axis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_arithmetic.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_fitting.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_unc.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_smoothing.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_slicing.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/spectral_examples.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_io.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_analysis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_correlation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/setup_package.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_regions.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_region_extract.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/conftest.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_template_comparison.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_spectrum_collection.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_continuum.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_loaders.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> copying specutils/tests/test_resample.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/extern
> copying specutils/extern/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/extern
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/template_comparison.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/correlation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/location.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/flux.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/width.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> copying specutils/analysis/uncertainty.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/estimate_uncertainty.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/manipulation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/smoothing.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/extract_spectral_region.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> copying specutils/manipulation/resample.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/hst_stis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/subaru_pfs_spec.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/muscles_sed.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/ascii.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/manga.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/generic_cube.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/hst_cos.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/sdss.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/jwst_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/twodfgrs_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/sixdfgs_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/apogee.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/wcs_fits.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/tabular_fits.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/generic_ecsv_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/twoslaq_lrg.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf
> copying specutils/io/asdf/extension.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf
> copying specutils/io/asdf/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf
> copying specutils/io/asdf/types.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders/tests
> copying specutils/io/default_loaders/tests/test_apogee.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders/tests
> copying specutils/io/default_loaders/tests/test_jwst_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders/tests
> copying specutils/io/default_loaders/tests/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/default_loaders/tests
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf/tags
> copying specutils/io/asdf/tags/spectra.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf/tags
> copying specutils/io/asdf/tags/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf/tags
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf/tags/tests
> copying specutils/io/asdf/tags/tests/test_spectra.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf/tags/tests
> copying specutils/io/asdf/tags/tests/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/io/asdf/tags/tests
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/extern/spectralcoord
> copying specutils/extern/spectralcoord/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/extern/spectralcoord
> copying specutils/extern/spectralcoord/spectral_quantity.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/extern/spectralcoord
> copying specutils/extern/spectralcoord/spectral_coordinate.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/extern/spectralcoord
> copying specutils/tests/coveragerc -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/tests
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:161: AstropyDeprecationWarning: The package argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The package argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:166: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:171: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:186: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:239: AstropyDeprecationWarning: The packagename argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The packagename argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:244: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:249: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:264: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> I: pybuild base:232: /usr/bin/python3 setup.py build --use-system-astropy-helpers
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:161: AstropyDeprecationWarning: The package argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The package argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:166: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:171: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/setup_helpers.py:186: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:239: AstropyDeprecationWarning: The packagename argument to generate_version_py has been deprecated and will be removed in future. Specify the package name in setup.cfg instead
>   warnings.warn('The packagename argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:244: AstropyDeprecationWarning: The version argument to generate_version_py has been deprecated and will be removed in future. Specify the version number in setup.cfg instead
>   warnings.warn('The version argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:249: AstropyDeprecationWarning: The release argument to generate_version_py has been deprecated and will be removed in future. We now use the presence of the "dev" string in the version to determine whether this is a release
>   warnings.warn('The release argument to generate_version_py has '
> /usr/lib/python3/dist-packages/astropy_helpers/version_helpers.py:264: AstropyDeprecationWarning: Specifying the package name using the "package_name" option in setup.cfg is deprecated - use the "name" option instead.
>   warnings.warn('Specifying the package name using the "package_name" '
> running build
> running build_py
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils
> copying specutils/version.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils
> copying specutils/_astropy_init.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils
> copying specutils/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils
> copying specutils/conftest.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io
> copying specutils/io/parsing_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io
> copying specutils/io/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io
> copying specutils/io/_list_of_loaders.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io
> copying specutils/io/registers.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/spectrum_mixin.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/spectral_region.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/spectrum1d.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/spectrum_list.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/spectrum_collection.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> copying specutils/spectra/spectral_axis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/spectra
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/fitting
> copying specutils/fitting/continuum.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/fitting
> copying specutils/fitting/fitmodels.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/fitting
> copying specutils/fitting/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/fitting
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/utils
> copying specutils/utils/quantity_model.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/utils
> copying specutils/utils/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/utils
> copying specutils/utils/wcs_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/utils
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_manipulation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_spectrum1d.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_spectral_axis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_arithmetic.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_fitting.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_unc.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_smoothing.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_slicing.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/spectral_examples.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_io.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_analysis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_correlation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/setup_package.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_regions.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_region_extract.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/conftest.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_template_comparison.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_spectrum_collection.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_continuum.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_loaders.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> copying specutils/tests/test_resample.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/extern
> copying specutils/extern/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/extern
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/template_comparison.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/correlation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/location.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/flux.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/width.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> copying specutils/analysis/uncertainty.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/estimate_uncertainty.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/utils.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/manipulation.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/smoothing.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/extract_spectral_region.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> copying specutils/manipulation/resample.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/hst_stis.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/subaru_pfs_spec.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/muscles_sed.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/ascii.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/manga.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/generic_cube.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/hst_cos.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/sdss.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/jwst_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/twodfgrs_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/sixdfgs_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/apogee.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/wcs_fits.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/tabular_fits.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/generic_ecsv_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> copying specutils/io/default_loaders/twoslaq_lrg.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf
> copying specutils/io/asdf/extension.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf
> copying specutils/io/asdf/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf
> copying specutils/io/asdf/types.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders/tests
> copying specutils/io/default_loaders/tests/test_apogee.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders/tests
> copying specutils/io/default_loaders/tests/test_jwst_reader.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders/tests
> copying specutils/io/default_loaders/tests/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/default_loaders/tests
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf/tags
> copying specutils/io/asdf/tags/spectra.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf/tags
> copying specutils/io/asdf/tags/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf/tags
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf/tags/tests
> copying specutils/io/asdf/tags/tests/test_spectra.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf/tags/tests
> copying specutils/io/asdf/tags/tests/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/io/asdf/tags/tests
> creating /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/extern/spectralcoord
> copying specutils/extern/spectralcoord/__init__.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/extern/spectralcoord
> copying specutils/extern/spectralcoord/spectral_quantity.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/extern/spectralcoord
> copying specutils/extern/spectralcoord/spectral_coordinate.py -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/extern/spectralcoord
> copying specutils/tests/coveragerc -> /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/tests
>    dh_auto_test -O--buildsystem=pybuild
> I: pybuild base:232: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build; python3.8 -m pytest --remote-data=none --doctest-rst
> ============================= test session starts ==============================
> platform linux -- Python 3.8.6, pytest-4.6.11, py-1.9.0, pluggy-0.13.0
> rootdir: /<<PKGBUILDDIR>>, inifile: setup.cfg
> plugins: cov-2.8.1, asdf-2.7.1, arraydiff-0.3, astropy-header-0.1.2, doctestplus-0.7.0, filter-subpackage-0.1.1, remotedata-0.3.2, openfiles-0.5.0, hypothesis-5.41.2
> collected 356 items
> 
> specutils/io/asdf/tags/tests/test_spectra.py xxxx.                       [  1%]
> specutils/io/default_loaders/tests/test_apogee.py sss                    [  2%]
> specutils/io/default_loaders/tests/test_jwst_reader.py ..........sss     [  5%]
> specutils/manipulation/resample.py ...                                   [  6%]
> specutils/tests/test_analysis.py ....................................... [ 17%]
> ..                                                                       [ 18%]
> specutils/tests/test_arithmetic.py .........                             [ 20%]
> specutils/tests/test_continuum.py .......                                [ 22%]
> specutils/tests/test_correlation.py ....                                 [ 23%]
> specutils/tests/test_fitting.py .....................                    [ 29%]
> specutils/tests/test_io.py .....                                         [ 31%]
> specutils/tests/test_loaders.py .ssss.ssssssssssssss...ssssss........... [ 42%]
> ............ssssssssssssss                                               [ 49%]
> specutils/tests/test_manipulation.py ...                                 [ 50%]
> specutils/tests/test_region_extract.py .........                         [ 53%]
> specutils/tests/test_regions.py .........                                [ 55%]
> specutils/tests/test_resample.py ..............x.....                    [ 61%]
> specutils/tests/test_slicing.py ....                                     [ 62%]
> specutils/tests/test_smoothing.py FFF...FF...FF..........                [ 68%]
> specutils/tests/test_spectral_axis.py .................................. [ 78%]
> ..................                                                       [ 83%]
> specutils/tests/test_spectrum1d.py .................s.....               [ 89%]
> specutils/tests/test_spectrum_collection.py .........                    [ 92%]
> specutils/tests/test_template_comparison.py ...........                  [ 95%]
> specutils/tests/test_unc.py .x.                                          [ 96%]
> specutils/tests/test_utils.py .............                              [100%]
> 
> =================================== FAILURES ===================================
> __________________________ test_smooth_custom_kernel ___________________________
> 
> self = <Quantity [1131.01333332, 1366.39097043, 1380.73344458, 1315.70807832,
>            1218.18529306, 1225.68833337, 1264.9...557.36062977, 1565.6571005 , 1519.2402814 ,
>            1489.30273208, 1434.86908964, 1202.1970936 ,  874.83988599] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff96e5a2b0>
> 
>     def test_smooth_custom_kernel(simulated_spectra):
>         """
>         Test CustomKernel smoothing with correct parmaeters.
>         """
>     
>         # Create the original spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Create a custom kernel (some weird asymmetric-ness)
>         numpy_kernel = np.array([0.5, 1, 2, 0.5, 0.2])
>         numpy_kernel = numpy_kernel / np.sum(numpy_kernel)
>     
>         custom_kernel = convolution.CustomKernel(numpy_kernel)
>         flux_smoothed_astropy = convolution.convolve(flux_original, custom_kernel)
>     
>         # Calculate the custom smoothed
>         spec1_smoothed = convolution_smooth(spec1, custom_kernel)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:58: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> ___________________________ test_smooth_box_good[1] ____________________________
> 
> self = <Quantity [1269.81604754, 1502.25541953, 1416.73697066, 1365.37248459,
>            1190.28624406, 1192.24629298, 1155.0...527.69269721, 1613.53838713, 1504.63945067,
>            1518.18404084, 1482.0770134 , 1323.19795373, 1358.1565708 ] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff96d3d640>
> width = 1
> 
>     @pytest.mark.parametrize("width", [1, 2.3])
>     def test_smooth_box_good(simulated_spectra, width):
>         """
>         Test Box1DKernel smoothing with correct parmaeters.
>     
>         Width values need to be a number greater than 0.
>         """
>     
>         # Create the original spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         box_kernel = convolution.Box1DKernel(width)
>         flux_smoothed_astropy = convolution.convolve(flux_original, box_kernel)
>     
>         # Calculate the box smoothed
>         spec1_smoothed = box_smooth(spec1, width)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:79: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> __________________________ test_smooth_box_good[2.3] ___________________________
> 
> self = <Quantity [1010.47187865, 1422.76596432, 1425.27546136, 1334.44204597,
>            1234.54781642, 1182.45761418, 1245.6...568.61248055, 1564.85223054, 1535.25033233,
>            1505.77113644, 1451.38400534, 1371.65737291, 1009.87777383] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff96d65670>
> width = 2.3
> 
>     @pytest.mark.parametrize("width", [1, 2.3])
>     def test_smooth_box_good(simulated_spectra, width):
>         """
>         Test Box1DKernel smoothing with correct parmaeters.
>     
>         Width values need to be a number greater than 0.
>         """
>     
>         # Create the original spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         box_kernel = convolution.Box1DKernel(width)
>         flux_smoothed_astropy = convolution.convolve(flux_original, box_kernel)
>     
>         # Calculate the box smoothed
>         spec1_smoothed = box_smooth(spec1, width)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:79: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> _________________________ test_smooth_gaussian_good[1] _________________________
> 
> self = <Quantity [ 952.78940003, 1328.53684936, 1397.34417997, 1331.95557926,
>            1246.15360935, 1209.55162516, 1258.7...568.25972393, 1560.04895519, 1533.9278687 ,
>            1499.93196811, 1440.71927016, 1303.98937136,  948.95257333] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff96e61130>
> stddev = 1
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_gaussian_good(simulated_spectra, stddev):
>         """
>         Test Gaussian1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         gaussian_kernel = convolution.Gaussian1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, gaussian_kernel)
>     
>         # Test gaussian smoothing
>         spec1_smoothed = gaussian_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value, rtol=0.02)
> 
> specutils/tests/test_smoothing.py:119: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> ________________________ test_smooth_gaussian_good[2.3] ________________________
> 
> self = <Quantity [ 801.70374785, 1011.0102985 , 1158.29014523, 1238.11922915,
>            1271.00948456, 1285.23574021, 1299.6...534.36252206, 1518.20849916, 1476.51079901,
>            1395.86639817, 1262.06995395, 1068.91985306,  829.19665989] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff96caaf10>
> stddev = 2.3
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_gaussian_good(simulated_spectra, stddev):
>         """
>         Test Gaussian1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         gaussian_kernel = convolution.Gaussian1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, gaussian_kernel)
>     
>         # Test gaussian smoothing
>         spec1_smoothed = gaussian_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value, rtol=0.02)
> 
> specutils/tests/test_smoothing.py:119: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> ________________________ test_smooth_trapezoid_good[1] _________________________
> 
> self = <Quantity [1010.47187865, 1422.76596432, 1425.27546136, 1334.44204597,
>            1234.54781642, 1182.45761418, 1245.6...568.61248055, 1564.85223054, 1535.25033233,
>            1505.77113644, 1451.38400534, 1371.65737291, 1009.87777383] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff975826d0>
> stddev = 1
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_trapezoid_good(simulated_spectra, stddev):
>         """
>         Test Trapezoid1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Create the flux_smoothed which is what we want to compare to
>         trapezoid_kernel = convolution.Trapezoid1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, trapezoid_kernel)
>     
>         # Test trapezoid smoothing
>         spec1_smoothed = trapezoid_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:160: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> _______________________ test_smooth_trapezoid_good[2.3] ________________________
> 
> self = <Quantity [ 904.41879172, 1331.39827589, 1410.11521773, 1326.23362309,
>            1252.62827613, 1201.34205666, 1276.5...578.82854348, 1549.8263825 , 1541.76585916,
>            1498.60938062, 1440.26618521, 1330.65428608,  879.89881107] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff96e618e0>
> stddev = 2.3
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_trapezoid_good(simulated_spectra, stddev):
>         """
>         Test Trapezoid1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Create the flux_smoothed which is what we want to compare to
>         trapezoid_kernel = convolution.Trapezoid1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, trapezoid_kernel)
>     
>         # Test trapezoid smoothing
>         spec1_smoothed = trapezoid_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:160: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> =============================== warnings summary ===============================
> /usr/lib/python3/dist-packages/astropy/tests/plugins/display.py:16
>   /usr/lib/python3/dist-packages/astropy/tests/plugins/display.py:16: AstropyDeprecationWarning: The astropy.tests.plugins.display plugin has been deprecated. See the pytest-astropy-header documentation for information on migrating to using pytest-astropy-header to customize the pytest header.
>     warnings.warn('The astropy.tests.plugins.display plugin has been deprecated. '
> 
> /usr/lib/python3/dist-packages/astropy/coordinates/baseframe.py:1207
>   /usr/lib/python3/dist-packages/astropy/coordinates/baseframe.py:1207: AstropyDeprecationWarning: Transforming a frame instance to a frame class (as opposed to another frame instance) will not be supported in the future.  Either explicitly instantiate the target frame, or first convert the source frame instance to a `astropy.coordinates.SkyCoord` and use its `transform_to()` method.
>     warnings.warn("Transforming a frame instance to a frame class (as opposed to another "
> 
> .pybuild/cpython3_3.8/build/specutils/manipulation/resample.py::specutils.manipulation.resample.FluxConservingResampler
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_line_flux_masked
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_equivalent_width_masked
> .pybuild/cpython3_3.8/build/specutils/tests/test_correlation.py::test_autocorrelation
> .pybuild/cpython3_3.8/build/specutils/tests/test_correlation.py::test_correlation
> .pybuild/cpython3_3.8/build/specutils/tests/test_correlation.py::test_correlation_zero_padding
> .pybuild/cpython3_3.8/build/specutils/tests/test_correlation.py::test_correlation_random_lines
> .pybuild/cpython3_3.8/build/specutils/tests/test_resample.py::test_expanded_grid_fluxconserving
> .pybuild/cpython3_3.8/build/specutils/tests/test_resample.py::test_resample_edges[FluxConservingResampler-nan_fill-nan]
> .pybuild/cpython3_3.8/build/specutils/tests/test_resample.py::test_resample_edges[FluxConservingResampler-zero_fill-0]
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_match_no_overlap
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_match_minimal_overlap
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_unknown_redshift
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_one_template_spectrum_in_match
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_multiple_template_spectra_in_match
>   /usr/lib/python3/dist-packages/astropy/units/quantity.py:477: RuntimeWarning: invalid value encountered in true_divide
>     result = super().__array_ufunc__(function, method, *arrays, **kwargs)
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_equivalent_width_regions
>   /usr/lib/python3/dist-packages/scipy/interpolate/interpolate.py:2532: RuntimeWarning: invalid value encountered in true_divide
>     norm_distances.append((x - grid[i]) /
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width_masked
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width_regions
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width_multi_spectrum
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_masked
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[5]
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[6]
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[7]
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_fwhm_masked
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_fwhm
> .pybuild/cpython3_3.8/build/specutils/tests/test_analysis.py::test_fwhm_multi_spectrum
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectrum1d.py::test_create_from_multidimensional_arrays
>   /usr/lib/python3/dist-packages/astropy/units/equivalencies.py:125: RuntimeWarning: divide by zero encountered in true_divide
>     (si.m, si.Hz, lambda x: _si.c.value / x),
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_continuum_fit
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_continuum_calculation
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_continuum_full_window
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_continuum_spectral_region
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_continuum_window_no_noise
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_double_continuum_window
> .pybuild/cpython3_3.8/build/specutils/tests/test_continuum.py::test_double_continuum_window_alternate
>   /usr/lib/python3/dist-packages/astropy/modeling/fitting.py:1708: AstropyUserWarning: Model is linear in parameters; consider using linear fitting methods.
>     warnings.warn('Model is linear in parameters; '
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_fitting.py::test_find_lines_derivative
> .pybuild/cpython3_3.8/build/specutils/tests/test_fitting.py::test_find_lines_threshold
>   /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/analysis/flux.py:272: AstropyUserWarning: Spectrum is not below the threshold signal-to-noise 0.01. This may indicate you have not continuum subtracted this spectrum (or that you have but it has high SNR features).
>   
>   If you want to suppress this warning either type 'specutils.conf.do_continuum_function_check = False' or see http://docs.astropy.org/en/stable/config/#adding-new-configuration-items for other ways to configure the warning.
>     warnings.warn(message, AstropyUserWarning)
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_fitting.py::test_fit_subspectrum
>   /usr/lib/python3/dist-packages/astropy/modeling/fitting.py:1166: AstropyUserWarning: The fit may be unsuccessful; check fit_info['message'] for more information.
>     warnings.warn("The fit may be unsuccessful; check "
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_region_extract.py::test_linear_excise_invert_from_spectrum
>   /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation/utils.py:119: AstropyUserWarning: A SpectralRegion with multiple subregions was provided as input. This may lead to undesired behavior with linear_exciser if the subregions overlap.
>     warnings.warn("A SpectralRegion with multiple subregions was provided as "
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_spectral_axis
>   /usr/lib/python3/dist-packages/astropy/utils/iers/iers.py:676: AstropyWarning: failed to download ftp://anonymous:mail%40astropy.org@gdc.cddis.eosdis.nasa.gov/pub/products/iers/finals2000A.all and https://datacenter.iers.org/data/9/finals2000A.all, using local IERS-B: <urlopen error Unable to open any source! Exceptions were {'ftp://anonymous:mail%40astropy.org@gdc.cddis.eosdis.nasa.gov/pub/products/iers/finals2000A.all': URLError("ftp error: OSError('An attempt was made to connect to the internet by a test that was not marked `remote_data`. The requested host was: 198.118.242.43')"), 'https://datacenter.iers.org/data/9/finals2000A.all': URLError(ConnectionRefusedError(111, 'Connection refused'))}>
>     warn(AstropyWarning(
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target4]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target1]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target2]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target3]
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target4]
>   /usr/lib/python3/dist-packages/astropy/coordinates/spectral_coordinate.py:292: NoVelocityWarning: No velocity defined on frame, assuming (0., 0., 0.) km / s.
>     warnings.warn(
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_spectrum1d.py::test_wcs_transformations
>   /usr/lib/python3/dist-packages/astropy/wcs/wcsapi/fitswcs.py:545: AstropyUserWarning: No observer defined on WCS, SpectralCoord will be converted without any velocity frame change
>     warnings.warn('No observer defined on WCS, SpectralCoord '
> 
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_match_no_overlap
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_match_minimal_overlap
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_unknown_redshift
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_one_template_spectrum_in_match
> .pybuild/cpython3_3.8/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_multiple_template_spectra_in_match
>   /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build/specutils/manipulation/resample.py:202: RuntimeWarning: invalid value encountered in true_divide
>     out_variance = np.sum(pixel_uncer * resample_grid**2, axis=-1) / np.sum(
> 
> -- Docs: https://docs.pytest.org/en/latest/warnings.html
> == 7 failed, 298 passed, 45 skipped, 6 xfailed, 91 warnings in 27.68 seconds ===
> E: pybuild pybuild:353: test: plugin distutils failed with: exit code=1: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.8/build; python3.8 -m pytest --remote-data=none --doctest-rst
> I: pybuild base:232: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build; python3.9 -m pytest --remote-data=none --doctest-rst
> ============================= test session starts ==============================
> platform linux -- Python 3.9.1rc1, pytest-4.6.11, py-1.9.0, pluggy-0.13.0
> rootdir: /<<PKGBUILDDIR>>, inifile: setup.cfg
> plugins: cov-2.8.1, asdf-2.7.1, arraydiff-0.3, astropy-header-0.1.2, doctestplus-0.7.0, filter-subpackage-0.1.1, remotedata-0.3.2, openfiles-0.5.0, hypothesis-5.41.2
> collected 356 items
> 
> specutils/io/asdf/tags/tests/test_spectra.py xxxx.                       [  1%]
> specutils/io/default_loaders/tests/test_apogee.py sss                    [  2%]
> specutils/io/default_loaders/tests/test_jwst_reader.py ..........sss     [  5%]
> specutils/manipulation/resample.py ...                                   [  6%]
> specutils/tests/test_analysis.py ....................................... [ 17%]
> ..                                                                       [ 18%]
> specutils/tests/test_arithmetic.py .........                             [ 20%]
> specutils/tests/test_continuum.py .......                                [ 22%]
> specutils/tests/test_correlation.py ....                                 [ 23%]
> specutils/tests/test_fitting.py .....................                    [ 29%]
> specutils/tests/test_io.py .....                                         [ 31%]
> specutils/tests/test_loaders.py .ssss.ssssssssssssss...ssssss........... [ 42%]
> ............ssssssssssssss                                               [ 49%]
> specutils/tests/test_manipulation.py ...                                 [ 50%]
> specutils/tests/test_region_extract.py .........                         [ 53%]
> specutils/tests/test_regions.py .........                                [ 55%]
> specutils/tests/test_resample.py ..............x.....                    [ 61%]
> specutils/tests/test_slicing.py ....                                     [ 62%]
> specutils/tests/test_smoothing.py FFF...FF...FF..........                [ 68%]
> specutils/tests/test_spectral_axis.py .................................. [ 78%]
> ..................                                                       [ 83%]
> specutils/tests/test_spectrum1d.py .................s.....               [ 89%]
> specutils/tests/test_spectrum_collection.py .........                    [ 92%]
> specutils/tests/test_template_comparison.py ...........                  [ 95%]
> specutils/tests/test_unc.py .x.                                          [ 96%]
> specutils/tests/test_utils.py .............                              [100%]
> 
> =================================== FAILURES ===================================
> __________________________ test_smooth_custom_kernel ___________________________
> 
> self = <Quantity [1131.01333332, 1366.39097043, 1380.73344458, 1315.70807832,
>            1218.18529306, 1225.68833337, 1264.9...557.36062977, 1565.6571005 , 1519.2402814 ,
>            1489.30273208, 1434.86908964, 1202.1970936 ,  874.83988599] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff99e829a0>
> 
>     def test_smooth_custom_kernel(simulated_spectra):
>         """
>         Test CustomKernel smoothing with correct parmaeters.
>         """
>     
>         # Create the original spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Create a custom kernel (some weird asymmetric-ness)
>         numpy_kernel = np.array([0.5, 1, 2, 0.5, 0.2])
>         numpy_kernel = numpy_kernel / np.sum(numpy_kernel)
>     
>         custom_kernel = convolution.CustomKernel(numpy_kernel)
>         flux_smoothed_astropy = convolution.convolve(flux_original, custom_kernel)
>     
>         # Calculate the custom smoothed
>         spec1_smoothed = convolution_smooth(spec1, custom_kernel)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:58: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> ___________________________ test_smooth_box_good[1] ____________________________
> 
> self = <Quantity [1269.81604754, 1502.25541953, 1416.73697066, 1365.37248459,
>            1190.28624406, 1192.24629298, 1155.0...527.69269721, 1613.53838713, 1504.63945067,
>            1518.18404084, 1482.0770134 , 1323.19795373, 1358.1565708 ] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff997f94c0>
> width = 1
> 
>     @pytest.mark.parametrize("width", [1, 2.3])
>     def test_smooth_box_good(simulated_spectra, width):
>         """
>         Test Box1DKernel smoothing with correct parmaeters.
>     
>         Width values need to be a number greater than 0.
>         """
>     
>         # Create the original spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         box_kernel = convolution.Box1DKernel(width)
>         flux_smoothed_astropy = convolution.convolve(flux_original, box_kernel)
>     
>         # Calculate the box smoothed
>         spec1_smoothed = box_smooth(spec1, width)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:79: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> __________________________ test_smooth_box_good[2.3] ___________________________
> 
> self = <Quantity [1010.47187865, 1422.76596432, 1425.27546136, 1334.44204597,
>            1234.54781642, 1182.45761418, 1245.6...568.61248055, 1564.85223054, 1535.25033233,
>            1505.77113644, 1451.38400534, 1371.65737291, 1009.87777383] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff993199a0>
> width = 2.3
> 
>     @pytest.mark.parametrize("width", [1, 2.3])
>     def test_smooth_box_good(simulated_spectra, width):
>         """
>         Test Box1DKernel smoothing with correct parmaeters.
>     
>         Width values need to be a number greater than 0.
>         """
>     
>         # Create the original spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         box_kernel = convolution.Box1DKernel(width)
>         flux_smoothed_astropy = convolution.convolve(flux_original, box_kernel)
>     
>         # Calculate the box smoothed
>         spec1_smoothed = box_smooth(spec1, width)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:79: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> _________________________ test_smooth_gaussian_good[1] _________________________
> 
> self = <Quantity [ 952.78940003, 1328.53684936, 1397.34417997, 1331.95557926,
>            1246.15360935, 1209.55162516, 1258.7...568.25972393, 1560.04895519, 1533.9278687 ,
>            1499.93196811, 1440.71927016, 1303.98937136,  948.95257333] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff99cba2e0>
> stddev = 1
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_gaussian_good(simulated_spectra, stddev):
>         """
>         Test Gaussian1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         gaussian_kernel = convolution.Gaussian1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, gaussian_kernel)
>     
>         # Test gaussian smoothing
>         spec1_smoothed = gaussian_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value, rtol=0.02)
> 
> specutils/tests/test_smoothing.py:119: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> ________________________ test_smooth_gaussian_good[2.3] ________________________
> 
> self = <Quantity [ 801.70374785, 1011.0102985 , 1158.29014523, 1238.11922915,
>            1271.00948456, 1285.23574021, 1299.6...534.36252206, 1518.20849916, 1476.51079901,
>            1395.86639817, 1262.06995395, 1068.91985306,  829.19665989] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff99308af0>
> stddev = 2.3
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_gaussian_good(simulated_spectra, stddev):
>         """
>         Test Gaussian1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Calculate the smoothed flux using Astropy
>         gaussian_kernel = convolution.Gaussian1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, gaussian_kernel)
>     
>         # Test gaussian smoothing
>         spec1_smoothed = gaussian_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value, rtol=0.02)
> 
> specutils/tests/test_smoothing.py:119: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> ________________________ test_smooth_trapezoid_good[1] _________________________
> 
> self = <Quantity [1010.47187865, 1422.76596432, 1425.27546136, 1334.44204597,
>            1234.54781642, 1182.45761418, 1245.6...568.61248055, 1564.85223054, 1535.25033233,
>            1505.77113644, 1451.38400534, 1371.65737291, 1009.87777383] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff997ebd00>
> stddev = 1
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_trapezoid_good(simulated_spectra, stddev):
>         """
>         Test Trapezoid1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Create the flux_smoothed which is what we want to compare to
>         trapezoid_kernel = convolution.Trapezoid1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, trapezoid_kernel)
>     
>         # Test trapezoid smoothing
>         spec1_smoothed = trapezoid_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:160: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> _______________________ test_smooth_trapezoid_good[2.3] ________________________
> 
> self = <Quantity [ 904.41879172, 1331.39827589, 1410.11521773, 1326.23362309,
>            1252.62827613, 1201.34205666, 1276.5...578.82854348, 1549.8263825 , 1541.76585916,
>            1498.60938062, 1440.26618521, 1330.65428608,  879.89881107] mJy>
> unit = Unit(dimensionless), equivalencies = []
> 
>     def to_value(self, unit=None, equivalencies=[]):
>         """
>         The numerical value, possibly in a different unit.
>     
>         Parameters
>         ----------
>         unit : `~astropy.units.UnitBase` instance or str, optional
>             The unit in which the value should be given. If not given or `None`,
>             use the current unit.
>     
>         equivalencies : list of equivalence pairs, optional
>             A list of equivalence pairs to try if the units are not directly
>             convertible (see :ref:`unit_equivalencies`). If not provided or
>             ``[]``, class default equivalencies will be used (none for
>             `~astropy.units.Quantity`, but may be set for subclasses).
>             If `None`, no equivalencies will be applied at all, not even any
>             set globally or within a context.
>     
>         Returns
>         -------
>         value : `~numpy.ndarray` or scalar
>             The value in the units specified. For arrays, this will be a view
>             of the data if no unit conversion was necessary.
>     
>         See also
>         --------
>         to : Get a new instance in a different unit.
>         """
>         if unit is None or unit is self.unit:
>             value = self.view(np.ndarray)
>         else:
>             unit = Unit(unit)
>             # We want a view if the unit does not change.  One could check
>             # with "==", but that calculates the scale that we need anyway.
>             # TODO: would be better for `unit.to` to have an in-place flag.
>             try:
> >               scale = self.unit._to(unit)
> 
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:738: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), other = Unit(dimensionless)
> 
>     def _to(self, other):
>         """
>         Returns the scale to the specified unit.
>     
>         See `to`, except that a Unit object should be given (i.e., no
>         string), and that all defaults are used, i.e., no
>         equivalencies and value=1.
>         """
>         # There are many cases where we just want to ensure a Quantity is
>         # of a particular unit, without checking whether it's already in
>         # a particular unit.  If we're being asked to convert from a unit
>         # to itself, we can short-circuit all of this.
>         if self is other:
>             return 1.0
>     
>         # Don't presume decomposition is possible; e.g.,
>         # conversion to function units is through equivalencies.
>         if isinstance(other, UnitBase):
>             self_decomposed = self.decompose()
>             other_decomposed = other.decompose()
>     
>             # Check quickly whether equivalent.  This is faster than
>             # `is_equivalent`, because it doesn't generate the entire
>             # physical type list of both units.  In other words it "fails
>             # fast".
>             if(self_decomposed.powers == other_decomposed.powers and
>                all(self_base is other_base for (self_base, other_base)
>                    in zip(self_decomposed.bases, other_decomposed.bases))):
>                 return self_decomposed.scale / other_decomposed.scale
>     
> >       raise UnitConversionError(
>             f"'{self!r}' is not a scaled version of '{other!r}'")
> E       astropy.units.core.UnitConversionError: 'Unit("mJy")' is not a scaled version of 'Unit(dimensionless)'
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:950: UnitConversionError
> 
> During handling of the above exception, another exception occurred:
> 
> simulated_spectra = <specutils.tests.spectral_examples.SpectraExamples object at 0xffff9953eb50>
> stddev = 2.3
> 
>     @pytest.mark.parametrize("stddev", [1, 2.3])
>     def test_smooth_trapezoid_good(simulated_spectra, stddev):
>         """
>         Test Trapezoid1DKernel smoothing with correct parmaeters.
>     
>         Standard deviation values need to be a number greater than 0.
>         """
>     
>         #  Create the spectrum
>         spec1 = simulated_spectra.s1_um_mJy_e1
>         flux_original = spec1.flux
>     
>         # Create the flux_smoothed which is what we want to compare to
>         trapezoid_kernel = convolution.Trapezoid1DKernel(stddev)
>         flux_smoothed_astropy = convolution.convolve(flux_original, trapezoid_kernel)
>     
>         # Test trapezoid smoothing
>         spec1_smoothed = trapezoid_smooth(spec1, stddev)
> >       compare_flux(spec1_smoothed.flux.value, flux_smoothed_astropy, flux_original.value)
> 
> specutils/tests/test_smoothing.py:160: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> specutils/tests/test_smoothing.py:34: in compare_flux
>     assert np.allclose(flux_smooth1, flux_smooth2)
> <__array_function__ internals>:5: in allclose
>     ???
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1509: in __array_function__
>     args, kwargs, unit, out = function_helper(*args, **kwargs)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:545: in close
>     (a, b), unit = _quantities2arrays(a, b, unit_from_first=True)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in _quantities2arrays
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity_helper/function_helpers.py:345: in <genexpr>
>     arrays = tuple((q._to_own_unit(arg)) for arg in args)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:1339: in _to_own_unit
>     _value = value.to_value(self.unit)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:741: in to_value
>     value = self._to_value(unit, equivalencies)
> /usr/lib/python3/dist-packages/astropy/units/quantity.py:660: in _to_value
>     return self.unit.to(unit, self.view(np.ndarray),
> /usr/lib/python3/dist-packages/astropy/units/core.py:987: in to
>     return self._get_converter(other, equivalencies=equivalencies)(value)
> /usr/lib/python3/dist-packages/astropy/units/core.py:918: in _get_converter
>     raise exc
> /usr/lib/python3/dist-packages/astropy/units/core.py:903: in _get_converter
>     return self._apply_equivalencies(
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
> 
> self = Unit("mJy"), unit = Unit("mJy"), other = Unit(dimensionless)
> equivalencies = []
> 
>     def _apply_equivalencies(self, unit, other, equivalencies):
>         """
>         Internal function (used from `_get_converter`) to apply
>         equivalence pairs.
>         """
>         def make_converter(scale1, func, scale2):
>             def convert(v):
>                 return func(_condition_arg(v) / scale1) * scale2
>             return convert
>     
>         for funit, tunit, a, b in equivalencies:
>             if tunit is None:
>                 try:
>                     ratio_in_funit = (other.decompose() /
>                                       unit.decompose()).decompose([funit])
>                     return make_converter(ratio_in_funit.scale, a, 1.)
>                 except UnitsError:
>                     pass
>             else:
>                 try:
>                     scale1 = funit._to(unit)
>                     scale2 = tunit._to(other)
>                     return make_converter(scale1, a, scale2)
>                 except UnitsError:
>                     pass
>                 try:
>                     scale1 = tunit._to(unit)
>                     scale2 = funit._to(other)
>                     return make_converter(scale1, b, scale2)
>                 except UnitsError:
>                     pass
>     
>         def get_err_str(unit):
>             unit_str = unit.to_string('unscaled')
>             physical_type = unit.physical_type
>             if physical_type != 'unknown':
>                 unit_str = "'{}' ({})".format(
>                     unit_str, physical_type)
>             else:
>                 unit_str = f"'{unit_str}'"
>             return unit_str
>     
>         unit_str = get_err_str(unit)
>         other_str = get_err_str(other)
>     
> >       raise UnitConversionError(
>             "{} and {} are not convertible".format(
>                 unit_str, other_str))
> E       astropy.units.core.UnitConversionError: 'mJy' (spectral flux density) and '' (dimensionless) are not convertible
> 
> /usr/lib/python3/dist-packages/astropy/units/core.py:886: UnitConversionError
> =============================== warnings summary ===============================
> /usr/lib/python3/dist-packages/astropy/tests/plugins/display.py:16
>   /usr/lib/python3/dist-packages/astropy/tests/plugins/display.py:16: AstropyDeprecationWarning: The astropy.tests.plugins.display plugin has been deprecated. See the pytest-astropy-header documentation for information on migrating to using pytest-astropy-header to customize the pytest header.
>     warnings.warn('The astropy.tests.plugins.display plugin has been deprecated. '
> 
> /usr/lib/python3/dist-packages/astropy/coordinates/baseframe.py:1207
>   /usr/lib/python3/dist-packages/astropy/coordinates/baseframe.py:1207: AstropyDeprecationWarning: Transforming a frame instance to a frame class (as opposed to another frame instance) will not be supported in the future.  Either explicitly instantiate the target frame, or first convert the source frame instance to a `astropy.coordinates.SkyCoord` and use its `transform_to()` method.
>     warnings.warn("Transforming a frame instance to a frame class (as opposed to another "
> 
> .pybuild/cpython3_3.9/build/specutils/manipulation/resample.py::specutils.manipulation.resample.FluxConservingResampler
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_line_flux_masked
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_equivalent_width_masked
> .pybuild/cpython3_3.9/build/specutils/tests/test_correlation.py::test_autocorrelation
> .pybuild/cpython3_3.9/build/specutils/tests/test_correlation.py::test_correlation
> .pybuild/cpython3_3.9/build/specutils/tests/test_correlation.py::test_correlation_zero_padding
> .pybuild/cpython3_3.9/build/specutils/tests/test_correlation.py::test_correlation_random_lines
> .pybuild/cpython3_3.9/build/specutils/tests/test_resample.py::test_expanded_grid_fluxconserving
> .pybuild/cpython3_3.9/build/specutils/tests/test_resample.py::test_resample_edges[FluxConservingResampler-nan_fill-nan]
> .pybuild/cpython3_3.9/build/specutils/tests/test_resample.py::test_resample_edges[FluxConservingResampler-zero_fill-0]
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_match_no_overlap
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_match_minimal_overlap
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_unknown_redshift
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_one_template_spectrum_in_match
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_multiple_template_spectra_in_match
>   /usr/lib/python3/dist-packages/astropy/units/quantity.py:477: RuntimeWarning: invalid value encountered in true_divide
>     result = super().__array_ufunc__(function, method, *arrays, **kwargs)
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_equivalent_width_regions
>   /usr/lib/python3/dist-packages/scipy/interpolate/interpolate.py:2532: RuntimeWarning: invalid value encountered in true_divide
>     norm_distances.append((x - grid[i]) /
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width_masked
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width_regions
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_sigma_width_multi_spectrum
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_masked
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[5]
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[6]
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_gaussian_fwhm_uncentered[7]
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_fwhm_masked
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_fwhm
> .pybuild/cpython3_3.9/build/specutils/tests/test_analysis.py::test_fwhm_multi_spectrum
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectrum1d.py::test_create_from_multidimensional_arrays
>   /usr/lib/python3/dist-packages/astropy/units/equivalencies.py:125: RuntimeWarning: divide by zero encountered in true_divide
>     (si.m, si.Hz, lambda x: _si.c.value / x),
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_continuum_fit
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_continuum_calculation
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_continuum_full_window
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_continuum_spectral_region
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_continuum_window_no_noise
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_double_continuum_window
> .pybuild/cpython3_3.9/build/specutils/tests/test_continuum.py::test_double_continuum_window_alternate
>   /usr/lib/python3/dist-packages/astropy/modeling/fitting.py:1708: AstropyUserWarning: Model is linear in parameters; consider using linear fitting methods.
>     warnings.warn('Model is linear in parameters; '
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_fitting.py::test_find_lines_derivative
> .pybuild/cpython3_3.9/build/specutils/tests/test_fitting.py::test_find_lines_threshold
>   /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/analysis/flux.py:272: AstropyUserWarning: Spectrum is not below the threshold signal-to-noise 0.01. This may indicate you have not continuum subtracted this spectrum (or that you have but it has high SNR features).
>   
>   If you want to suppress this warning either type 'specutils.conf.do_continuum_function_check = False' or see http://docs.astropy.org/en/stable/config/#adding-new-configuration-items for other ways to configure the warning.
>     warnings.warn(message, AstropyUserWarning)
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_fitting.py::test_fit_subspectrum
>   /usr/lib/python3/dist-packages/astropy/modeling/fitting.py:1166: AstropyUserWarning: The fit may be unsuccessful; check fit_info['message'] for more information.
>     warnings.warn("The fit may be unsuccessful; check "
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_region_extract.py::test_linear_excise_invert_from_spectrum
>   /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation/utils.py:119: AstropyUserWarning: A SpectralRegion with multiple subregions was provided as input. This may lead to undesired behavior with linear_exciser if the subregions overlap.
>     warnings.warn("A SpectralRegion with multiple subregions was provided as "
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_spectral_axis
>   /usr/lib/python3/dist-packages/astropy/utils/iers/iers.py:676: AstropyWarning: failed to download ftp://anonymous:mail%40astropy.org@gdc.cddis.eosdis.nasa.gov/pub/products/iers/finals2000A.all and https://datacenter.iers.org/data/9/finals2000A.all, using local IERS-B: <urlopen error Unable to open any source! Exceptions were {'ftp://anonymous:mail%40astropy.org@gdc.cddis.eosdis.nasa.gov/pub/products/iers/finals2000A.all': URLError("ftp error: OSError('An attempt was made to connect to the internet by a test that was not marked `remote_data`. The requested host was: 198.118.242.43')"), 'https://datacenter.iers.org/data/9/finals2000A.all': URLError(ConnectionRefusedError(111, 'Connection refused'))}>
>     warn(AstropyWarning(
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[None-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer1-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer2-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer3-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_coord[observer4-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[None-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer1-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer2-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer3-target4]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target1]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target2]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target3]
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectral_axis.py::test_create_from_spectral_axis[observer4-target4]
>   /usr/lib/python3/dist-packages/astropy/coordinates/spectral_coordinate.py:292: NoVelocityWarning: No velocity defined on frame, assuming (0., 0., 0.) km / s.
>     warnings.warn(
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_spectrum1d.py::test_wcs_transformations
>   /usr/lib/python3/dist-packages/astropy/wcs/wcsapi/fitswcs.py:545: AstropyUserWarning: No observer defined on WCS, SpectralCoord will be converted without any velocity frame change
>     warnings.warn('No observer defined on WCS, SpectralCoord '
> 
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_match_no_overlap
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_match_minimal_overlap
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_unknown_redshift
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_one_template_spectrum_in_match
> .pybuild/cpython3_3.9/build/specutils/tests/test_template_comparison.py::test_template_redshift_with_multiple_template_spectra_in_match
>   /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build/specutils/manipulation/resample.py:202: RuntimeWarning: invalid value encountered in true_divide
>     out_variance = np.sum(pixel_uncer * resample_grid**2, axis=-1) / np.sum(
> 
> -- Docs: https://docs.pytest.org/en/latest/warnings.html
> == 7 failed, 298 passed, 45 skipped, 6 xfailed, 91 warnings in 25.45 seconds ===
> E: pybuild pybuild:353: test: plugin distutils failed with: exit code=1: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.9/build; python3.9 -m pytest --remote-data=none --doctest-rst
> dh_auto_test: error: pybuild --test --test-pytest -i python{version} -p "3.8 3.9" returned exit code 13

The full build log is available from:
   http://qa-logs.debian.net/2020/12/05/specutils_1.1-2_unstable.log

A list of current common problems and possible solutions is available at
http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

If you reassign this bug to another package, please marking it as 'affects'-ing
this package. See https://www.debian.org/Bugs/server-control#affects

If you fail to reproduce this, please provide a build log and diff it with me
so that we can identify if something relevant changed in the meantime.

About the archive rebuild: The rebuild was done on EC2 VM instances from
Amazon Web Services, using a clean, minimal and up-to-date chroot. Every
failed build was retried once to eliminate random failures.



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