html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/pull/5847#issuecomment-945070918,https://api.github.com/repos/pydata/xarray/issues/5847,945070918,IC_kwDOAMm_X844VKNG,14371165,2021-10-17T08:14:35Z,2021-10-17T08:14:35Z,MEMBER,"I thought a little about the pint issue and for dataarrays you can probably modify the `attrs` dict around here:
https://github.com/pydata/xarray/blob/07de257c5884df49335496ee6347fb633a7c302c/xarray/core/dataarray.py#L133

But I'm not sure it's worth the effort considering the explicit indexes rework is ongoing, #5692, and that should hopefully allow pint quantities on coords.

I'd suggest adding a pint test anyway, but let it `xfail` for now with a nice explanation. The TODO comment might get lost in the sea of code.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1021396447
https://github.com/pydata/xarray/pull/5847#issuecomment-945016426,https://api.github.com/repos/pydata/xarray/issues/5847,945016426,IC_kwDOAMm_X844U85q,14371165,2021-10-16T22:37:44Z,2021-10-16T22:37:44Z,MEMBER,"That's rather annoying that the pint units are dropped:
```python
arr = xr.DataArray(
    name=""var_a"",
    data=np.array([[1, 2], [3, 4]]),
    # TODO make coord a Quantity once unit-aware indexes supported
    coords=dict(
        a=(""a"", pint.Quantity(np.array([5, 6]), ""s"")),
        b=(""b"", np.array([7, 8]), {""unit"": ""s""}),
    ),
    dims=(""a"", ""b""),
)
C:\Users\J.W\Documents\GitHub\xarray\xarray\core\utils.py:118: UnitStrippedWarning: The unit of the quantity is stripped when downcasting to ndarray.
  index = pd.Index(np.asarray(array), **kwargs)
```
I think xarray could've at least moved the `pint unit` string to `arr.a.attrs[""units""]` before downcasting it to ndarrays.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1021396447