Uwe L. Korn created ARROW-1891:
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Summary: [Python] NaT date32 values are only converted to nulls if
from_pandas is used
Key: ARROW-1891
URL: https://issues.apache.org/jira/browse/ARROW-1891
Project: Apache Arrow
Issue Type: Bug
Components: Python
Reporter: Uwe L. Korn
{code}
np.array([None, date(2017, 4, 4)], dtype='datetime64[D]')
pa.array(expected, from_pandas=True) -> [null, 2017-4-4]
pa.array(expected, from_pandas=True) -> [1970-1-1, 2017-4-4]
{code}
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