Concatenate: wrong error message about scalar coords #4096
Description
🐛 Bug Report
How To Reproduce
Attempt to concatenate cubes that are identical apart from the coordinate points.
import iris
print(iris.__version__)
cube1 = iris.cube.Cube(
range(3),
dim_coords_and_dims=[(iris.coords.DimCoord(range(3), long_name='foo'), 0)],
aux_coords_and_dims=[(iris.coords.AuxCoord(1, long_name='bar'), None)])
cube2 = iris.cube.Cube(
range(3),
dim_coords_and_dims=[(iris.coords.DimCoord(range(3, 6), long_name='foo'), 0)],
aux_coords_and_dims=[(iris.coords.AuxCoord(2, long_name='bar'), None)])
print(iris.cube.CubeList([cube1, cube2]).concatenate_cube())Get an error about mismatched metadata:
3.0.1
Traceback (most recent call last):
File "concatenate_error.py", line 15, in <module>
print(iris.cube.CubeList([cube1, cube2]).concatenate_cube())
File "[site-packages-path]/iris/cube.py", line 551, in concatenate_cube
check_ancils=check_ancils,
File "[site-packages-path]/iris/_concatenate.py", line 324, in concatenate
check_ancils,
File "[site-packages-path]/iris/_concatenate.py", line 839, in register
match = self._cube_signature.match(cube_signature, error_on_mismatch)
File "[site-packages-path]/iris/_concatenate.py", line 567, in match
raise iris.exceptions.ConcatenateError(msgs)
iris.exceptions.ConcatenateError: failed to concatenate into a single cube.
Scalar coordinates metadata differ: bar != bar
Expected behaviour
The error should be about the points, not the metadata.
Environment
- OS & Version: RHEL7.9
- Iris Version: 3.0.1