issue_comments: 346106494

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https://github.com/pydata/xarray/issues/1726#issuecomment-346106494 https://api.github.com/repos/pydata/xarray/issues/1726 346106494 MDEyOklzc3VlQ29tbWVudDM0NjEwNjQ5NA== 3621629 2017-11-21T17:47:44Z 2017-11-21T19:41:46Z CONTRIBUTOR

I dug it a bit further. Contrary to what I said numpy is fine. If x is a DataArray

```python np.array(x.mean())

-> array(2.0)

np.array([x.mean()])

-> array([2.0])

np.array(x)

-> ok

```

pandas behavior is more surprising

```python pd.Series(2)

ok

pd.Series(x.mean())

-> TypeError: len() of unsized object

pd.Series([x.mean()])

-> dtype=object

however for 1D x

pd.Series(x)

dtype is fine

```

Something looks a bit odd to me. But it looks more like a pandas issue

 
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