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https://issues.apache.org/jira/browse/ARROW-3832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney closed ARROW-3832.
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Resolution: Not A Problem
pandas handles strings using object arrays, so this is the correct behavior for
{{to_pandas}}
> [Python] StringValue.to_pandas returns an array with dtype='O' instead of 'S'
> -----------------------------------------------------------------------------
>
> Key: ARROW-3832
> URL: https://issues.apache.org/jira/browse/ARROW-3832
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.11.1
> Reporter: Yevgeni Litvin
> Priority: Major
>
> {{When trying to get a numpy array of strings from pyarrow.StringArray type,
> a numpy array of }}{{dtype=object}}{{ is returned. Tried both Python 3.5 and
> 2.7.}}
> {{To reproduce:}}
> {{{{pa.StringArray.from_buffers(1,
> pa.py_buffer(b'\x00\x00\x00\x00\x05\x00\x00\x00'),
> pa.py_buffer(b'hello')).to_pandas()}}}}
>
> {{Result:}}
> {{Out[27]: array(['hello'], dtype=object)}}
>
> {{I would expect the result to be:}}
> {{array([b'hello'], dtype='|S5')}}
> {{(or '|U5' ?)}}
>
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