issue_comments: 330567549

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https://github.com/pydata/xarray/issues/438#issuecomment-330567549 https://api.github.com/repos/pydata/xarray/issues/438 330567549 MDEyOklzc3VlQ29tbWVudDMzMDU2NzU0OQ== 900941 2017-09-19T14:58:55Z 2017-09-19T14:58:55Z CONTRIBUTOR

Hi @shoyer:

where is this data_vars='minimal' set? or maybe I am using a wrong version of xarray? Here is what I get

```python

In [10]: ds = xarray.open_mfdataset("/snow3/huziy/Daymet_daily_derivatives/daymet_spatial_agg_tmin_10x10/daymet_v3_tmin_*.nc4", data_vars="minimum")

TypeError Traceback (most recent call last) <ipython-input-10-ba844206f74a> in <module>() ----> 1 ds = xarray.open_mfdataset("/snow3/huziy/Daymet_daily_derivatives/daymet_spatial_agg_tmin_10x10/daymet_v3_tmin_*.nc4", data_vars="minimum")

/snow3/huziy/Python/python_builds/anaconda3/envs/py3.6-a3/lib/python3.6/site-packages/xarray/backends/api.py in open_mfdataset(paths, chunks, concat_dim, compat, preprocess, engine, lock, **kwargs) 503 paths = sorted(glob(paths)) 504 else: --> 505 paths = [str(p) if isinstance(p, path_type) else p for p in paths] 506 507 if not paths:

/snow3/huziy/Python/python_builds/anaconda3/envs/py3.6-a3/lib/python3.6/site-packages/xarray/backends/api.py in <listcomp>(.0) 503 paths = sorted(glob(paths)) 504 else: --> 505 paths = [str(p) if isinstance(p, path_type) else p for p in paths] 506 507 if not paths:

TypeError: open_dataset() got an unexpected keyword argument 'data_vars'

In [11]: ds = xarray.open_mfdataset("/snow3/huziy/Daymet_daily_derivatives/daymet_spatial_agg_tmin_10x10/daymet_v3_tmin_*.nc4")

In [12]: ds.data_vars = "minimum"

AttributeError Traceback (most recent call last) <ipython-input-12-9026b067946d> in <module>() ----> 1 ds.data_vars = "minimum"

/snow3/huziy/Python/python_builds/anaconda3/envs/py3.6-a3/lib/python3.6/site-packages/xarray/core/common.py in setattr(self, name, value) 180 raise AttributeError( 181 "cannot set attribute %r on a %r object. Use setitem " --> 182 "style assignment (e.g., ds['name'] = ...) instead to " 183 "assign variables." % (name, type(self).name)) 184 object.setattr(self, name, value)

AttributeError: can't set attribute

In [13]: ds.data_vars Out[13]: Data variables: tmin (time, y, x) float64 nan nan nan nan nan nan ... lon (time, y, x) float64 156.5 156.5 156.6 156.6 ... lat (time, y, x) float64 58.55 58.64 58.72 58.81 ... lambert_conformal_conic (time) int64 -32767 -32767 -32767 -32767 -32767 ...

In [16]: xarray.version Out[16]: '0.9.6'

``` Cheers

 
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