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https://issues.apache.org/jira/browse/ARROW-6227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney resolved ARROW-6227.
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Resolution: Fixed
Issue resolved by pull request 5150
[https://github.com/apache/arrow/pull/5150]
> [Python] pyarrow.array() shouldn't coerce np.nan to string
> ----------------------------------------------------------
>
> Key: ARROW-6227
> URL: https://issues.apache.org/jira/browse/ARROW-6227
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Affects Versions: 0.14.1
> Reporter: Igor Yastrebov
> Assignee: Wes McKinney
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.15.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> pa.array() by default regards np.nan as float value and fails on
> pa.array([np.nan, 'string']). It should also fail on pa.array(['string',
> np.nan]) instead of coercing it to null value.
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