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From "Wes McKinney (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARROW-596) [Python] Add convenience function to convert pandas.DataFrame to pyarrow.Buffer containing a file or stream representation
Date Fri, 03 Mar 2017 14:38:46 GMT

    [ https://issues.apache.org/jira/browse/ARROW-596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15894478#comment-15894478
] 

Wes McKinney commented on ARROW-596:
------------------------------------

{{pyarrow.Buffer}} has a {{to_pybytes}} method as a last resort. Converting to bytes is bad
because it is a memory copy

Is there a way to do a zero-copy memory handoff to a memoryview? I can dig into how NumPy
provides a zero-copy buffer interface but in case you know off hand the right tool to use

> [Python] Add convenience function to convert pandas.DataFrame to pyarrow.Buffer containing
a file or stream representation
> --------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ARROW-596
>                 URL: https://issues.apache.org/jira/browse/ARROW-596
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: Python
>            Reporter: Wes McKinney
>




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