SPOT Fails to Run With numpy >= 2.4.0

[aneugart]

When SPOT is installed using the configuration files provided in the repository in a new VM (created with the spot_conda_environmet.yaml file) it fails to run with an error message of "module 'numpy' has no attribute 'in1d'". Pinning numpy to version 2.3.5 allowed the application to run.

[ejeschke]

The problem comes from astropy:

    from ginga.util import catalog, iohelper, loader
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/ginga/util/catalog.py", line 18, in <module>
    from astropy import coordinates, units
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/coordinates/__init__.py", line 9, in <module>
    from .angles import *
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/coordinates/angles/__init__.py", line 9, in <module>
    from .core import *
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/coordinates/angles/core.py", line 13, in <module>
    from astropy import units as u
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/units/__init__.py", line 13, in <module>
    from . import (
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/units/astrophys.py", line 12, in <module>
    from astropy.constants import si as _si
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/constants/__init__.py", line 27, in <module>
    from . import cgs, si
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/constants/cgs.py", line 7, in <module>
    from .config import codata, iaudata
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/constants/config.py", line 15, in <module>
    codata = importlib.import_module(".constants." + phys_version, "astropy")
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/constants/codata2018.py", line 9, in <module>
    from .constant import Constant, EMConstant
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/constants/constant.py", line 11, in <module>
    from astropy.units.quantity import Quantity
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/units/quantity.py", line 27, in <module>
    from .quantity_helper import can_have_arbitrary_unit, check_output, converters_and_unit
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/units/quantity_helper/__init__.py", line 16, in <module>
    from . import erfa, function_helpers, helpers, scipy_special
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/units/quantity_helper/function_helpers.py", line 1246, in <module>
    @function_helper  # np.in1d deprecated in not NUMPY_LT_2_0.
     ^^^^^^^^^^^^^^^
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/astropy/units/quantity_helper/function_helpers.py", line 205, in __call__
    helps = getattr(module, f.__name__)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/eric/miniconda3/envs/spot/lib/python3.11/site-packages/numpy/__init__.py", line 792, in __getattr__
    raise AttributeError(f"module {__name__!r} has no attribute {attr!r}")
AttributeError: module 'numpy' has no attribute 'in1d'. Did you mean: 'int16'?

[ejeschke]

So this is an upstream problem. We can temporarily fix as @aneugart says by pinning numpy to 2.3.5

[ejeschke]

Installing astropy>=7.2.0 works to fix this.