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https://issues.apache.org/jira/browse/ARROW-1890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16280141#comment-16280141
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ASF GitHub Bot commented on ARROW-1890:
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xhochy opened a new pull request #1393: ARROW-1890: [Python] Fix mask handling
for Date32 NumPy conversions
URL: https://github.com/apache/arrow/pull/1393
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> [Python] Masking for date32 arrays not working
> ----------------------------------------------
>
> Key: ARROW-1890
> URL: https://issues.apache.org/jira/browse/ARROW-1890
> Project: Apache Arrow
> Issue Type: Bug
> Reporter: Uwe L. Korn
> Assignee: Uwe L. Korn
> Labels: pull-request-available
>
> {code}
> arr = np.array([date(2017, 4, 3), date(2017, 4, 4)], dtype='datetime64[D]')
> mask = [True, False]
> t32 = pa.date32()
> result = pa.array(arr, mask=np.array(mask))
> expected = pa.array(np.array([None, date(2017, 4, 4)], dtype='datetime64[D]'))
> {code}
> The above code produces an array that has no null values.
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