Ryuichi Arafune

@jbednar > Python dicts have been ordered for the past sixteen years, and I am not aware of any proposal to ever make them not be ordered again, so I...

For the further information: https://docs.xarray.dev/en/stable/generated/xarray.Coordinates.html#xarray.Coordinates > coords ([dict-like](https://docs.python.org/3/glossary.html#term-mapping), optional) – Mapping where keys are coordinate names and values are objects that can be converted into a [Variable](https://docs.xarray.dev/en/stable/generated/xarray.Variable.html#xarray.Variable) object (see [as_variable()](https://docs.xarray.dev/en/stable/generated/xarray.as_variable.html#xarray.as_variable))....

> whether all mapping types are guaranteed to be ordered (I suspect not) I believe it clearly is not. > whether xarray expects the mapping type to be ordered. I...

The issue should not be closed, because it has not been resolved at al by #6351 .

Could you let me know how to reopen this?

My argument (that dim should be used instead of coords), turned out to be correct. https://github.com/pydata/xarray/discussions/9295 I think you should rethink how you handle Dataset before you create further confusion....