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Artem KOZHEVNIKOV commented on ARROW-5208: ------------------------------------------ Just curiosity question : what was the reasons to have `python_to_arrow.cc` module in pure c++ and not in cython let say ? (To be honest, I did not feel myself confortable enough to contribute in c++...) Passing mask argument into `InferArrowType` will also solve the case `_is_array_like(obj) is True` (or in this case the inference is based on pandas ) ? > [Python] Inconsistent resulting type during casting in pa.array() when mask > is present > -------------------------------------------------------------------------------------- > > Key: ARROW-5208 > URL: https://issues.apache.org/jira/browse/ARROW-5208 > Project: Apache Arrow > Issue Type: Bug > Components: Python > Affects Versions: 0.13.0 > Reporter: Artem KOZHEVNIKOV > Assignee: Wes McKinney > Priority: Major > Fix For: 0.14.0 > > > I would expect Int64Array type in all cases below : > {code:java} > >>> pa.array([4, None, 4, None], mask=np.array([False, True, False, True])) > >>> > >>> > <pyarrow.lib.Int64Array object at 0x91fad3a98> [4, null, 4, null ] > >>> pa.array([4, None, 4, 'rer'], mask=np.array([False, True, False, True])) > >>> > >>> > <pyarrow.lib.Int64Array object at 0x9201f23b8> [4, null, 4, null ] > >>> pa.array([4, None, 4, 3.], mask=np.array([False, True, False, True])) > >>> > >>> <pyarrow.lib.DoubleArray object at 0x91fab7638> [ 4, null, > >>> 4, null ]{code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)