[jira] [Updated] (ARROW-13226) [Python] Add a general purpose cython trampolining utility

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated ARROW-13226:
-----------------------------------
    Labels: pull-request-available  (was: )

> [Python] Add a general purpose cython trampolining utility
> ----------------------------------------------------------
>
>                 Key: ARROW-13226
>                 URL: https://issues.apache.org/jira/browse/ARROW-13226
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python
>            Reporter: Ben Kietzman
>            Assignee: Ben Kietzman
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 5.0.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Currently, invoking python from C++ requires a lot of boilerplate. For example, see any class named {{/\w+Vtable/}} which holds a bundle of function pointers and a single OwnedRef to a python object accessed by those functions. This is unnecessarily baroque for adding simple callbacks and we could instead have a general purpose utility similar to std::bind which can bring a python object into closure.



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