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Posted to issues@arrow.apache.org by "Wes McKinney (JIRA)" <ji...@apache.org> on 2017/04/07 14:18:41 UTC

[jira] [Updated] (ARROW-781) [Python/C++] Increase reference count for base object?

     [ https://issues.apache.org/jira/browse/ARROW-781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wes McKinney updated ARROW-781:
-------------------------------
    Fix Version/s: 0.3.0

> [Python/C++] Increase reference count for base object?
> ------------------------------------------------------
>
>                 Key: ARROW-781
>                 URL: https://issues.apache.org/jira/browse/ARROW-781
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++, Python
>            Reporter: Philipp Moritz
>            Assignee: Philipp Moritz
>             Fix For: 0.3.0
>
>
> In https://github.com/apache/arrow/blob/e53357cd610f1bdca0cbbac001e417f329d54be1/cpp/src/arrow/python/numpy_convert.cc#L260, the reference count of the base object is not incremented. I wonder if it should be. I've been running into problems with the ray code if it is not increased.
> See also:
> https://docs.scipy.org/doc/numpy/reference/c-api.array.html#c.PyArray_SetBaseObject
> https://github.com/BVLC/caffe/blob/1d3e6e4522a95faf954e775b23a2f907e66caf31/python/caffe/_caffe.cpp#L232
> https://github.com/numpy/numpy/blob/c90d7c94fd2077d0beca48fa89a423da2b0bb663/numpy/core/src/multiarray/methods.c#L393
> -- Philipp.



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