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https://issues.apache.org/jira/browse/ARROW-11120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17261604#comment-17261604
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Neal Richardson commented on ARROW-11120:
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All I'm saying is that in your code, the only place you use rpy2_R6 is here: 
https://github.com/rpy2/rpy2-arrow/blob/main/rpy2_arrow/sexpextptr.py#L29, and 
you don't need to because you aren't doing anything specifically with R6. 
Indeed, you do the same operation on L35 without using rpy2_R6.utils.

I have no opinion about what libraries users of this API in pyarrow should use, 
I'm just saying that this adapter code doesn't need it.

> [Python][R] Prove out plumbing to pass data between Python and R using rpy2
> ---------------------------------------------------------------------------
>
>                 Key: ARROW-11120
>                 URL: https://issues.apache.org/jira/browse/ARROW-11120
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: Python, R
>            Reporter: Wes McKinney
>            Priority: Major
>
> Per discussion on the mailing list, we should see what is required (if 
> anything) to be able to pass data structures using the C interface between 
> Python and R from the perspective of the Python user using rpy2. rpy2 is sort 
> of the Python version of reticulate. Unit tests will then validate that it's 
> working



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