Accounting for NoneType coordinates in attrs/encoding #359
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dcherian
reviewed
Aug 15, 2022
dcherian
reviewed
Aug 15, 2022
cf_xarray/accessor.py
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| search_in.update(obj.encoding["coordinates"].split(" ")) | ||
| if "coordinates" in obj.attrs: | ||
| search_in.update(obj.attrs["coordinates"].split(" ")) | ||
| coordinates = obj.encoding.get("coordinates", None) |
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| coordinates = obj.encoding.get("coordinates", None) | |
| attrs_or_encoding = ChainMap(self._obj[name].attrs, self._obj[name].encoding) | |
| coordinates = attrs_or_encoding.get("coordinates", None) |
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I was not sure if it was intentional that here a set of attrs["coordinates"] and encoding["coordinates"] is being constructed and not the ChainMap operator is being used (which respects then only the first mention of "coordinates" in attrs and encoding).
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Oh nice catch. I think we should treat coordinates in both attrs and encoding as a bug perhaps.
dcherian
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Aug 15, 2022
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With pydata/xarray#5514 it has become practice (at least for me) to occasionally disable the coordinates attribute to be written to file by setting
ds['var'].encoding['coordinates'] = None. If used too generously, this may however lead to an AttributeError in the cf-xarray accessor:I suggest this small update to keep that from happening.