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Remove unrecognised variable warning on grid load #338

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Remove unrecognised variable warning on grid load #338

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3b85181
Remove unrecognised variable warning
mikekryjak Mar 6, 2026
046871e
Remove test for removed warning
mikekryjak Mar 6, 2026
5ba6489
Removed orphaned comment
mikekryjak May 19, 2026
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6 changes: 0 additions & 6 deletions xbout/load.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1153,12 +1153,6 @@ def _open_grid(datapath, chunks, keep_xboundaries, keep_yboundaries, mxg=2, **kw

unrecognised_dims = list(set(grid.dims) - set(acceptable_dims))
if len(unrecognised_dims) > 0:
# Weird string formatting is a workaround to deal with possible bug in
# pytest warnings capture - doesn't match strings containing brackets
warn(
"Will drop all variables containing the dimensions {} because "
"they are not recognised".format(str(unrecognised_dims)[1:-1])
)
grid = grid.drop_dims(unrecognised_dims)

if keep_xboundaries:
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21 changes: 0 additions & 21 deletions xbout/tests/test_grid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -41,27 +41,6 @@ def test_open_grid(self, create_example_grid_file):
assert_equal(result, open_dataset(example_grid))
result.close()

def test_open_grid_extra_dims(self, create_example_grid_file, tmp_path_factory):
example_grid = open_dataset(create_example_grid_file)

new_var = DataArray(
name="new",
data=[[1, 2], [8, 9], [16, 17], [27, 28], [37, 38]],
dims=["x", "w"],
)

dodgy_grid_directory = tmp_path_factory.mktemp("dodgy_grid")
dodgy_grid_path = dodgy_grid_directory.joinpath("dodgy_grid.nc")
merge([example_grid, new_var]).to_netcdf(dodgy_grid_path, engine="h5netcdf")

with pytest.warns(
UserWarning, match="drop all variables containing " "the dimensions 'w'"
):
result = open_boutdataset(datapath=dodgy_grid_path)
result = result.drop_vars(["x", "y"])
assert_equal(result, example_grid)
result.close()

def test_open_grid_apply_geometry(self, create_example_grid_file):
@register_geometry(name="Schwarzschild")
def add_schwarzschild_coords(ds, coordinates=None):
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