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
1085992113,I_kwDOAMm_X85Auuyx,6092,DeprecationWarning regarding use of distutils Version classes,1828519,closed,0,,,10,2021-12-21T16:11:08Z,2023-09-05T06:39:39Z,2021-12-24T14:50:48Z,CONTRIBUTOR,,,,"<!-- Please include a self-contained copy-pastable example that generates the issue if possible.

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**What happened**:

While working on some tests that catch and check for warnings in my library I found that xarray with new versions of Python (I think this is the trigger) causes a ton of DeprecationWarnings on import:

```python
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/xarray/core/pycompat.py:22: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  duck_array_version = LooseVersion(duck_array_module.__version__)
```

**What you expected to happen**:

No warnings.

**Minimal Complete Verifiable Example**:

```python
import warnings
warnings.simplefilter(""always"")

import xarray as xr
```

Results in:

```
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/xarray/core/pycompat.py:22: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  duck_array_version = LooseVersion(duck_array_module.__version__)
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/xarray/core/pycompat.py:37: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  duck_array_version = LooseVersion(""0.0.0"")
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/xarray/core/pycompat.py:37: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  duck_array_version = LooseVersion(""0.0.0"")
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/setuptools/_distutils/version.py:351: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  other = LooseVersion(other)
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/setuptools/_distutils/version.py:351: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  other = LooseVersion(other)
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/xarray/core/npcompat.py:82: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  if LooseVersion(np.__version__) >= ""1.20.0"":
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/setuptools/_distutils/version.py:351: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  other = LooseVersion(other)
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/xarray/core/pdcompat.py:45: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  if LooseVersion(pd.__version__) < ""0.25.0"":
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/setuptools/_distutils/version.py:351: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
  other = LooseVersion(other)
```

**Anything else we need to know?**:

**Environment**:

<details><summary>Output of <tt>xr.show_versions()</tt></summary>

<!-- Paste the output here xr.show_versions() here -->

```
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/site-packages/_distutils_hack/__init__.py:35: UserWarning: Setuptools is replacing distutils.
  warnings.warn(""Setuptools is replacing distutils."")
/home/davidh/miniconda3/envs/satpy_py39/lib/python3.9/asyncio/base_events.py:681: ResourceWarning: unclosed event loop <_UnixSelectorEventLoop running=False closed=False debug=False>
  _warn(f""unclosed event loop {self!r}"", ResourceWarning, source=self)
ResourceWarning: Enable tracemalloc to get the object allocation traceback

INSTALLED VERSIONS
------------------
commit: None
python: 3.9.9 | packaged by conda-forge | (main, Dec 20 2021, 02:41:03) 
[GCC 9.4.0]
python-bits: 64
OS: Linux
OS-release: 5.15.5-76051505-generic
machine: x86_64
processor: x86_64
byteorder: little
LC_ALL: None
LANG: en_US.UTF-8
LOCALE: ('en_US', 'UTF-8')
libhdf5: 1.12.1
libnetcdf: 4.8.1

xarray: 0.20.2
pandas: 1.3.5
numpy: 1.20.3
scipy: 1.7.3
netCDF4: 1.5.8
pydap: None
h5netcdf: 0.12.0
h5py: 3.6.0
Nio: None
zarr: 2.10.3
cftime: 1.5.1.1
nc_time_axis: None
PseudoNetCDF: None
rasterio: 1.2.10
cfgrib: None
iris: None
bottleneck: 1.3.2
dask: 2021.12.0
distributed: 2021.12.0
matplotlib: 3.5.1
cartopy: 0.20.1
seaborn: None
numbagg: None
fsspec: 2021.11.1
cupy: None
pint: None
sparse: None
setuptools: 60.0.3
pip: 21.3.1
conda: None
pytest: 6.2.5
IPython: 7.30.1
sphinx: 4.3.2
```

</details>
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