[jira] [Updated] (ARROW-4111) [Python] Create time types from Python sequences of integers

["Wes McKinney (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-4111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-4111:
--------------------------------
    Fix Version/s:     (was: 0.13.0)
                   0.14.0

> [Python] Create time types from Python sequences of integers
> ------------------------------------------------------------
>
>                 Key: ARROW-4111
>                 URL: https://issues.apache.org/jira/browse/ARROW-4111
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Wes McKinney
>            Priority: Major
>             Fix For: 0.14.0
>
>
> This works for dates, but not times:
> {code}
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>     def test_to_pandas_deduplicate_date_time():
>         nunique = 100
>         repeats = 10
>     
>         unique_values = list(range(nunique))
>     
>         cases = [
>             # array type, to_pandas options
>             ('date32', {'date_as_object': True}),
>             ('date64', {'date_as_object': True}),
>             ('time32[ms]', {}),
>             ('time64[us]', {})
>         ]
>     
>         for array_type, pandas_options in cases:
> >           arr = pa.array(unique_values * repeats, type=array_type)
> pyarrow/tests/test_convert_pandas.py:2392: 
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> pyarrow/array.pxi:175: in pyarrow.lib.array
>     return _sequence_to_array(obj, mask, size, type, pool, from_pandas)
> pyarrow/array.pxi:36: in pyarrow.lib._sequence_to_array
>     check_status(ConvertPySequence(sequence, mask, options, &out))
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> >   raise ArrowInvalid(message)
> E   pyarrow.lib.ArrowInvalid: ../src/arrow/python/python_to_arrow.cc:1012 : ../src/arrow/python/iterators.h:70 : Could not convert 0 with type int: converting to time32
> {code}



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