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https://issues.apache.org/jira/browse/ARROW-3829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wes McKinney updated ARROW-3829:
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Fix Version/s: (was: 0.14.0)
> [Python] Support protocols to extract Arrow objects from third-party classes
> ----------------------------------------------------------------------------
>
> Key: ARROW-3829
> URL: https://issues.apache.org/jira/browse/ARROW-3829
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Uwe L. Korn
> Assignee: Uwe L. Korn
> Priority: Major
>
> In the style of NumPy's {{__array__}}, we should be able to ask inputs to
> {{pa.array}}, {{pa.Table.from_X}}, ... whether they can convert themselves to
> Arrow objects. This would allow for example to turn objects that hold an
> Arrow object internally to expose them directly instead of going a conversion
> path.
> My current use case involves Pandas {{ExtensionArray}} instances that
> internally have Arrow objects and should be reused when we pass the whole
> {{DataFrame}} to {{pa.Table.from_pandas}}.
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