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/issues/582#issuecomment-142467890,https://api.github.com/repos/pydata/xarray/issues/582,142467890,MDEyOklzc3VlQ29tbWVudDE0MjQ2Nzg5MA==,167164,2015-09-23T01:24:34Z,2015-09-23T01:25:07Z,NONE,"Fair enough, I wasn't aware `list(ds.dims)` worked..

`.keys()` returns a keysview though, not a list:

``` python
In [4]: ds.dims.keys()
Out[4]: KeysView(Frozen(SortedKeysDict({'time': 70128, 'z': 1, 'x': 1, 'y': 1})))

In [5]: ds.dims.keys()[0]
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-5-874ed46e2639> in <module>()
----> 1 ds.dims.keys()[0]

TypeError: 'KeysView' object does not support indexing
```
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