Coerce IndexVariable to Variable when assigning to data variables or coordinates
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jsignell
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IndexVariable to Variable when assigning to data variables or coordinates
jsignell
changed the title
IndexVariable to Variable when assigning to data variables or coordinatesIndexVariable to Variable when assigning to data variables or coordinates
dcherian
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Nov 11, 2025
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dcherian
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Nov 11, 2025
jsignell
commented
Nov 12, 2025
| for (k, v) in ds._variables.items() | ||
| if v.dims == (k,) | ||
| ), {k: type(v) for k, v in ds._variables.items() if v.dims == (k,)} | ||
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This is now handled by _assert_variable_invariants
jsignell
commented
Nov 12, 2025
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| def _assert_variable_invariants(var: Variable, name: Hashable = None): | ||
| def _assert_variable_invariants( | ||
| var: Variable | Any, |
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The check now happens within this function.
jsignell
commented
Nov 12, 2025
| isinstance(v, IndexVariable) | ||
| for (k, v) in da._coords.items() | ||
| if v.dims == (k,) | ||
| ), {k: type(v) for k, v in da._coords.items()} |
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This is now handled by _assert_variable_invariants
jsignell
commented
Nov 12, 2025
| stacked.coords["variable"].drop_vars(["z", "variable", "y"]), | ||
| expected_stacked_variable, | ||
| stacked["variable"].variable.to_base_variable(), | ||
| expected_stacked_variable.variable, |
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This was the only test change that was needed. Basically stacked["variable"].variable is an IndexVariable because it is represents a coord that is part of a MultiIndex. But you can't know that if you only have access to the DataArray with no coords. So I just switched it to be comparing variable and to coerce to the Variable.
Illviljan
reviewed
Nov 13, 2025
Co-authored-by: Illviljan <14371165+Illviljan@users.noreply.github.com>
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whats-new.rstNew functions/methods are listed inapi.rst