[jira] [Commented] (ARROW-1997) [Python] to_pandas with strings_to_categorical fails

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

    [ https://issues.apache.org/jira/browse/ARROW-1997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16326658#comment-16326658 ] 

ASF GitHub Bot commented on ARROW-1997:
---------------------------------------

Licht-T opened a new pull request #1480: ARROW-1997: [C++/Python] Avoid zero-copy-option in to_pandas when `strings_to_categorical` is True
URL: https://github.com/apache/arrow/pull/1480
 
 
   This closes [ARROW-1997](https://issues.apache.org/jira/browse/ARROW-1997).

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> [Python] to_pandas with strings_to_categorical fails
> ----------------------------------------------------
>
>                 Key: ARROW-1997
>                 URL: https://issues.apache.org/jira/browse/ARROW-1997
>             Project: Apache Arrow
>          Issue Type: Bug
>            Reporter: Licht Takeuchi
>            Assignee: Licht Takeuchi
>            Priority: Major
>              Labels: pull-request-available
>
> Repro code.
> Seems that unexpected deallocation occured.
> {code:java}
> import pandas as pd
> import pyarrow as pa
> df = pd.DataFrame({
> 'Foo': ['A', 'A', 'B', 'B']
> })
> table = pa.Table.from_pandas(df)
> df = table.to_pandas(strings_to_categorical=True)
> {code}



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