[jira] [Assigned] (ARROW-6626) [Python] Handle "set" values as lists when converting to Arrow

["Alessandro Molina (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-6626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alessandro Molina reassigned ARROW-6626:
----------------------------------------

    Assignee: Alessandro Molina

> [Python] Handle "set" values as lists when converting to Arrow
> --------------------------------------------------------------
>
>                 Key: ARROW-6626
>                 URL: https://issues.apache.org/jira/browse/ARROW-6626
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Assignee: Alessandro Molina
>            Priority: Major
>
> See current behavior
> {code}
> In [1]: pa.array([{1,2, 3}])                                                                   
> ---------------------------------------------------------------------------
> ArrowInvalid                              Traceback (most recent call last)
> <ipython-input-1-20fea2f9457a> in <module>
> ----> 1 pa.array([{1,2, 3}])
> ~/code/arrow/python/pyarrow/array.pxi in pyarrow.lib.array()
> ~/code/arrow/python/pyarrow/array.pxi in pyarrow.lib._sequence_to_array()
> ~/code/arrow/python/pyarrow/error.pxi in pyarrow.lib.check_status()
> ArrowInvalid: Could not convert {1, 2, 3} with type set: did not recognize Python value type when inferring an Arrow data type
> In ../src/arrow/python/iterators.h, line 70, code: func(value, static_cast<int64_t>(i), &keep_going)
> In ../src/arrow/python/inference.cc, line 621, code: inferrer.VisitSequence(obj, mask)
> In ../src/arrow/python/python_to_arrow.cc, line 1074, code: InferArrowType(seq, mask, options.from_pandas, &real_type)
> {code}



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