issues: 636480145

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
636480145 MDU6SXNzdWU2MzY0ODAxNDU= 4141 xarray.where() drops attributes 4711805 closed 0     3 2020-06-10T19:06:32Z 2022-01-19T19:35:41Z 2022-01-19T19:35:41Z CONTRIBUTOR      

MCVE Code Sample

```python import xarray as xr

da = xr.DataArray(1) da.attrs['foo'] = 'bar' xr.where(da==0, -1, da).attrs

shows: {}

```

Expected Output

{'foo': 'bar'}

Problem Description

I would expect the attributes to remain in the data array.

Versions

Output of <tt>xr.show_versions()</tt> INSTALLED VERSIONS ------------------ commit: None python: 3.8.2 | packaged by conda-forge | (default, Apr 24 2020, 08:20:52) [GCC 7.3.0] python-bits: 64 OS: Linux OS-release: 5.4.0-33-generic machine: x86_64 processor: x86_64 byteorder: little LC_ALL: None LANG: en_US.UTF-8 LOCALE: en_US.UTF-8 libhdf5: None libnetcdf: None xarray: 0.15.1 pandas: 1.0.4 numpy: 1.18.4 scipy: 1.4.1 netCDF4: None pydap: None h5netcdf: None h5py: None Nio: None zarr: None cftime: None nc_time_axis: None PseudoNetCDF: None rasterio: 1.1.4 cfgrib: None iris: None bottleneck: None dask: 2.16.0 distributed: None matplotlib: 3.2.1 cartopy: None seaborn: None numbagg: None setuptools: 46.2.0 pip: 20.1 conda: None pytest: None IPython: 7.14.0 sphinx: 3.0.4 
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   completed 13221727 issue

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