issue_comments: 1261996160

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https://github.com/pydata/xarray/issues/7104#issuecomment-1261996160 https://api.github.com/repos/pydata/xarray/issues/7104 1261996160 IC_kwDOAMm_X85LOIiA 4160723 2022-09-29T09:11:05Z 2022-09-29T09:11:05Z MEMBER

Thanks for the report @znichollscr.

Maybe we should check pandas.MultiIndex.is_unique in Dataset.unstack() like in Dataset.from_dataframe()?

```python df = ds.drop_vars("lat").to_dataframe()

xr.Dataset.from_dataframe(df)

ValueError: cannot convert a DataFrame with a non-unique MultiIndex into xarray

```

 
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