ScipyArrayWrapper' object has no attribute 'oindex' about xarray HOT 8 OPEN

In [6]: ds2 = xr.open_dataset('/tmp/test.nc')

In [7]: ds2.sel(y=[1])
Out[7]: 
<xarray.Dataset> Size: 16B
Dimensions:  (x: 2, y: 1)
Dimensions without coordinates: x, y
Data variables:
    A        (x, y) object 16B ...

In [8]: ds2.sel(y=[1]).to_netcdf('/tmp/ttest.nc')
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[8], line 1
----> 1 ds2.sel(y=[1]).to_netcdf('/tmp/ttest.nc')

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/dataset.py:2298, in Dataset.to_netcdf(self, path, mode, format, group, engine, encoding, unlimited_dims, compute, invalid_netcdf)
   2295     encoding = {}
   2296 from xarray.backends.api import to_netcdf
-> 2298 return to_netcdf(  # type: ignore  # mypy cannot resolve the overloads:(
   2299     self,
   2300     path,
   2301     mode=mode,
   2302     format=format,
   2303     group=group,
   2304     engine=engine,
   2305     encoding=encoding,
   2306     unlimited_dims=unlimited_dims,
   2307     compute=compute,
   2308     multifile=False,
   2309     invalid_netcdf=invalid_netcdf,
   2310 )

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/backends/api.py:1339, in to_netcdf(dataset, path_or_file, mode, format, group, engine, encoding, unlimited_dims, compute, multifile, invalid_netcdf)
   1334 # TODO: figure out how to refactor this logic (here and in save_mfdataset)
   1335 # to avoid this mess of conditionals
   1336 try:
   1337     # TODO: allow this work (setting up the file for writing array data)
   1338     # to be parallelized with dask
-> 1339     dump_to_store(
   1340         dataset, store, writer, encoding=encoding, unlimited_dims=unlimited_dims
   1341     )
   1342     if autoclose:
   1343         store.close()

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/backends/api.py:1386, in dump_to_store(dataset, store, writer, encoder, encoding, unlimited_dims)
   1383 if encoder:
   1384     variables, attrs = encoder(variables, attrs)
-> 1386 store.store(variables, attrs, check_encoding, writer, unlimited_dims=unlimited_dims)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/backends/common.py:393, in AbstractWritableDataStore.store(self, variables, attributes, check_encoding_set, writer, unlimited_dims)
    390 if writer is None:
    391     writer = ArrayWriter()
--> 393 variables, attributes = self.encode(variables, attributes)
    395 self.set_attributes(attributes)
    396 self.set_dimensions(variables, unlimited_dims=unlimited_dims)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/backends/common.py:482, in WritableCFDataStore.encode(self, variables, attributes)
    479 def encode(self, variables, attributes):
    480     # All NetCDF files get CF encoded by default, without this attempting
    481     # to write times, for example, would fail.
--> 482     variables, attributes = cf_encoder(variables, attributes)
    483     variables = {k: self.encode_variable(v) for k, v in variables.items()}
    484     attributes = {k: self.encode_attribute(v) for k, v in attributes.items()}

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/conventions.py:795, in cf_encoder(variables, attributes)
    792 # add encoding for time bounds variables if present.
    793 _update_bounds_encoding(variables)
--> 795 new_vars = {k: encode_cf_variable(v, name=k) for k, v in variables.items()}
    797 # Remove attrs from bounds variables (issue #2921)
    798 for var in new_vars.values():

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/conventions.py:196, in encode_cf_variable(var, needs_copy, name)
    183 ensure_not_multiindex(var, name=name)
    185 for coder in [
    186     times.CFDatetimeCoder(),
    187     times.CFTimedeltaCoder(),
   (...)
    194     variables.BooleanCoder(),
    195 ]:
--> 196     var = coder.encode(var, name=name)
    198 # TODO(kmuehlbauer): check if ensure_dtype_not_object can be moved to backends:
    199 var = ensure_dtype_not_object(var, name=name)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/coding/times.py:972, in CFDatetimeCoder.encode(self, variable, name)
    970 def encode(self, variable: Variable, name: T_Name = None) -> Variable:
    971     if np.issubdtype(
--> 972         variable.data.dtype, np.datetime64
    973     ) or contains_cftime_datetimes(variable):
    974         dims, data, attrs, encoding = unpack_for_encoding(variable)
    976         units = encoding.pop("units", None)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/variable.py:433, in Variable.data(self)
    431     return self._data
    432 elif isinstance(self._data, indexing.ExplicitlyIndexed):
--> 433     return self._data.get_duck_array()
    434 else:
    435     return self.values

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:809, in MemoryCachedArray.get_duck_array(self)
    808 def get_duck_array(self):
--> 809     self._ensure_cached()
    810     return self.array.get_duck_array()

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:803, in MemoryCachedArray._ensure_cached(self)
    802 def _ensure_cached(self):
--> 803     self.array = as_indexable(self.array.get_duck_array())

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:760, in CopyOnWriteArray.get_duck_array(self)
    759 def get_duck_array(self):
--> 760     return self.array.get_duck_array()

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:619, in LazilyIndexedArray.get_duck_array(self)
    617 def get_duck_array(self):
    618     if isinstance(self.array, ExplicitlyIndexedNDArrayMixin):
--> 619         array = apply_indexer(self.array, self.key)
    620     else:
    621         # If the array is not an ExplicitlyIndexedNDArrayMixin,
    622         # it may wrap a BackendArray so use its __getitem__
    623         array = self.array[self.key]

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:1000, in apply_indexer(indexable, indexer)
    998     return indexable.vindex[indexer]
    999 elif isinstance(indexer, OuterIndexer):
-> 1000     return indexable.oindex[indexer]
   1001 else:
   1002     return indexable[indexer]

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:342, in IndexCallable.__getitem__(self, key)
    341 def __getitem__(self, key: Any) -> Any:
--> 342     return self.getter(key)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/coding/variables.py:72, in _ElementwiseFunctionArray._oindex_get(self, key)
     71 def _oindex_get(self, key):
---> 72     return type(self)(self.array.oindex[key], self.func, self.dtype)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/core/indexing.py:342, in IndexCallable.__getitem__(self, key)
    341 def __getitem__(self, key: Any) -> Any:
--> 342     return self.getter(key)

File ~/mambaforge/envs/test/lib/python3.12/site-packages/xarray/coding/strings.py:256, in StackedBytesArray._oindex_get(self, key)
    255 def _oindex_get(self, key):
--> 256     return _numpy_char_to_bytes(self.array.oindex[key])

AttributeError: 'ScipyArrayWrapper' object has no attribute 'oindex'

In [9]: xr.show_versions()

INSTALLED VERSIONS
------------------
commit: None
python: 3.12.2 | packaged by conda-forge | (main, Feb 16 2024, 20:54:21) [Clang 16.0.6 ]
python-bits: 64
OS: Darwin
OS-release: 23.4.0
machine: arm64
processor: arm
byteorder: little
LC_ALL: None
LANG: en_US.UTF-8
LOCALE: ('en_US', 'UTF-8')
libhdf5: None
libnetcdf: None

xarray: 2024.3.0
pandas: 2.2.1
numpy: 1.26.4
scipy: 1.13.0
netCDF4: None
pydap: None
h5netcdf: None
h5py: None
Nio: None
zarr: None
cftime: None
nc_time_axis: None
iris: None
bottleneck: None
dask: 2024.4.1
distributed: 2024.4.1
matplotlib: None
cartopy: None
seaborn: None
numbagg: None
fsspec: 2024.3.1
cupy: None
pint: None
sparse: None
flox: None
numpy_groupies: None
setuptools: 69.2.0
pip: 24.0
conda: None
pytest: None
mypy: None
IPython: 8.22.2
sphinx: None