issues: 2073024461

What happened?

The following script leads to an error: ``` import numpy as np import xarray as xr from sparse import GCXS

x = np.random.negative_binomial(1, 0.5, size=(100, 100)) array = xr.DataArray(GCXS.from_numpy(x)) array.mean() ```

```

AttributeError Traceback (most recent call last) Cell In[16], line 1 ----> 1 array.mean()

File ~/.../python3.11/site-packages/xarray/core/_aggregations.py:1663, in DataArrayAggregations.mean(self, dim, skipna, keep_attrs, kwargs) 1588 def mean( 1589 self, 1590 dim: Dims = None, (...) 1594 kwargs: Any, 1595 ) -> Self: 1596 """ 1597 Reduce this DataArray's data by applying mean along some dimension(s). 1598 (...) 1661 array(nan) 1662 """ -> 1663 return self.reduce( 1664 duck_array_ops.mean, 1665 dim=dim, 1666 skipna=skipna, 1667 keep_attrs=keep_attrs, 1668 **kwargs, 1669 )

File ~/.../python3.11/site-packages/xarray/core/dataarray.py:3776, in DataArray.reduce(self, func, dim, axis, keep_attrs, keepdims, kwargs) 3732 def reduce( 3733 self, 3734 func: Callable[..., Any], (...) 3740 kwargs: Any, 3741 ) -> Self: 3742 """Reduce this array by applying func along some dimension(s). 3743 3744 Parameters (...) 3773 summarized data and the indicated dimension(s) removed. 3774 """ -> 3776 var = self.variable.reduce(func, dim, axis, keep_attrs, keepdims, **kwargs) 3777 return self._replace_maybe_drop_dims(var)

File ~/.../python3.11/site-packages/xarray/core/variable.py:1756, in Variable.reduce(self, func, dim, axis, keep_attrs, keepdims, kwargs) 1749 keep_attrs_ = ( 1750 _get_keep_attrs(default=False) if keep_attrs is None else keep_attrs 1751 ) 1753 # Noe that the call order for Variable.mean is 1754 # Variable.mean -> NamedArray.mean -> Variable.reduce 1755 # -> NamedArray.reduce -> 1756 result = super().reduce( 1757 func=func, dim=dim, axis=axis, keepdims=keepdims, kwargs 1758 ) 1760 # return Variable always to support IndexVariable 1761 return Variable( 1762 result.dims, result.data, attrs=result._attrs if keep_attrs else None 1763 )

File ~/.../python3.11/site-packages/xarray/namedarray/core.py:772, in NamedArray.reduce(self, func, dim, axis, keepdims, kwargs) 770 data = func(self.data, axis=axis, kwargs) 771 else: --> 772 data = func(self.data, **kwargs) 774 if getattr(data, "shape", ()) == self.shape: 775 dims = self.dims

File ~/.../python3.11/site-packages/xarray/core/duck_array_ops.py:637, in mean(array, axis, skipna, kwargs) 635 return _to_pytimedelta(mean_timedeltas, unit="us") + offset 636 else: --> 637 return _mean(array, axis=axis, skipna=skipna, kwargs)

File ~/.../python3.11/site-packages/xarray/core/duck_array_ops.py:399, in _create_nan_agg_method.<locals>.f(values, axis, skipna, **kwargs) 396 kwargs.pop("min_count", None) 398 xp = get_array_namespace(values) --> 399 func = getattr(xp, name) 401 try: 402 with warnings.catch_warnings():

AttributeError: module 'sparse' has no attribute 'mean' ```

What did you expect to happen?

Reproducible script runs without error with sparse==0.14.0.

Minimal Complete Verifiable Example

No response

MVCE confirmation

• [X] Minimal example — the example is as focused as reasonably possible to demonstrate the underlying issue in xarray.
• [X] Complete example — the example is self-contained, including all data and the text of any traceback.
• [X] Verifiable example — the example copy & pastes into an IPython prompt or Binder notebook, returning the result.
• [X] New issue — a search of GitHub Issues suggests this is not a duplicate.
• [X] Recent environment — the issue occurs with the latest version of xarray and its dependencies.

Relevant log output

No response

Anything else we need to know?

No response

Environment

INSTALLED VERSIONS ------------------ commit: None python: 3.11.6 | packaged by conda-forge | (main, Oct 3 2023, 10:40:35) [GCC 12.3.0] python-bits: 64 OS: Linux OS-release: 6.2.0-34-generic machine: x86_64 processor: x86_64 byteorder: little LC_ALL: None LANG: en_US.UTF-8 LOCALE: ('en_US', 'UTF-8') libhdf5: 1.14.2 libnetcdf: None xarray: 2023.12.0 pandas: 1.5.3 numpy: 1.24.4 scipy: 1.11.4 netCDF4: None pydap: None h5netcdf: None h5py: 3.10.0 Nio: None zarr: None cftime: None nc_time_axis: None iris: None bottleneck: None dask: 2023.12.0 distributed: 2023.12.0 matplotlib: 3.8.2 cartopy: None seaborn: 0.12.2 numbagg: None fsspec: 2023.12.0 cupy: None pint: None sparse: 0.15.0 flox: None numpy_groupies: 0.10.2 setuptools: 68.2.2 pip: 23.3.1 conda: None pytest: 7.4.3 mypy: None IPython: 8.18.1 sphinx: None