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Request a warning for when coord names are ignored when dims are specified #11234
Description
What is your issue?
When coords are specified in tuple format, their names are silently ignored when dims names are also specified.
The following expression yields a DataArray that retains no reference to the otherwise specified coords of a, b, and c, in favor of the positionally-associated names of dims, x, y, and z.
DataArray(
data=[[[1]], [[2]], [[3]]],
dims=["x", "y", "z"],
coords=[("a", [5, 6, 7]), ("b", [8]), ("c", [9])]
)
The result is:
<xarray.DataArray (x: 3, y: 1, z: 1)> Size: 24B
array([[[1]],
[[2]],
[[3]]])
Coordinates:
* x (x) int64 24B 5 6 7
* y (y) int64 8B 8
* z (z) int64 8B 9
Even though this behavior is documented, I think the user should be warned that the coordinate names do not match the dimension names and have been overridden.
Activity
welcome commentedon Mar 16, 2026
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dcherian commentedon Mar 17, 2026
That is wild. looks like it just treats it as "
dict.from_items"