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https://github.com/pydata/xarray/issues/631#issuecomment-484934985 https://api.github.com/repos/pydata/xarray/issues/631 484934985 MDEyOklzc3VlQ29tbWVudDQ4NDkzNDk4NQ== 5635139 2019-04-19T15:39:54Z 2019-04-19T15:39:54Z MEMBER

Adding a v confusing error message which my colleague just hit (not exactly the same as this, but thought it wasn't worth a whole new issue):

```

In [10]: xr.DataArray( ...: data=1, ...: coords={ ...: 'test':[1]#, ...: }, ...: dims=['test'] ...: )


KeyError Traceback (most recent call last) <ipython-input-10-41a019d49aae> in <module> 4 'test':[1]#, 5 }, ----> 6 dims=['test'] 7 )

~/workspace/xarray/xarray/core/dataarray.py in init(self, data, coords, dims, name, attrs, encoding, indexes, fastpath) 228 229 data = as_compatible_data(data) --> 230 coords, dims = _infer_coords_and_dims(data.shape, coords, dims) 231 variable = Variable(dims, data, attrs, encoding, fastpath=True) 232

~/workspace/xarray/xarray/core/dataarray.py in _infer_coords_and_dims(shape, coords, dims) 76 77 for d, s in zip(v.dims, v.shape): ---> 78 if s != sizes[d]: 79 raise ValueError('conflicting sizes for dimension %r: ' 80 'length %s on the data but length %s on '

KeyError: 'test' ```

...nothing to do with the test entry, it's that data is a scalar

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