Tests fail with AttributeError: module 'numpy' has no attribute 'asscalar'. Did you mean: 'isscalar'?

[TheChymera]

Here is the build log for 0.18.3 (the same error also occurs with 0.16.1) → https://ppb.chymera.eu/b28389.log

This is the excerpt of the error traceback from the log:

ImportError while loading conftest '/var/tmp/portage/dev-python/gwcs-0.18.3/work/gwcs-0.18.3/gwcs/tests/conftest.py'.
gwcs/__init__.py:72: in <module>
    from .wcs import *   # noqa
gwcs/wcs.py:8: in <module>
    from astropy import units as u
/usr/lib/python3.10/site-packages/astropy/units/__init__.py:17: in <module>
    from .quantity import *
/usr/lib/python3.10/site-packages/astropy/units/quantity.py:32: in <module>
    from .quantity_helper import (converters_and_unit, can_have_arbitrary_unit,
/usr/lib/python3.10/site-packages/astropy/units/quantity_helper/__init__.py:10: in <module>
    from . import helpers, function_helpers
/usr/lib/python3.10/site-packages/astropy/units/quantity_helper/function_helpers.py:116: in <module>
    np.asscalar, np.alen,
/usr/lib/python3.10/site-packages/numpy/__init__.py:284: in __getattr__
    raise AttributeError("module {!r} has no attribute "
E   AttributeError: module 'numpy' has no attribute 'asscalar'. Did you mean: 'isscalar'?

[WilliamJamieson]

Please include a full pip freeze.

[nden]

I can't reproduce this. It may be a version mismatch. @TheChymera Do you think it's still a problem?

[WilliamJamieson]

This is an issue with the installed astropy vs numpy version not gwcs as the traceback is when gwcs imports from astropy. In the future, include a pip freeze with such issues.