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Posted to issues@arrow.apache.org by "Joris Van den Bossche (JIRA)" <ji...@apache.org> on 2019/08/13 13:32:00 UTC
[jira] [Assigned] (ARROW-6224) [Python] remaining usages of the
'data' attribute (from previous Column) cause warnings
[ https://issues.apache.org/jira/browse/ARROW-6224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joris Van den Bossche reassigned ARROW-6224:
--------------------------------------------
Assignee: Joris Van den Bossche
> [Python] remaining usages of the 'data' attribute (from previous Column) cause warnings
> ---------------------------------------------------------------------------------------
>
> Key: ARROW-6224
> URL: https://issues.apache.org/jira/browse/ARROW-6224
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Joris Van den Bossche
> Assignee: Joris Van den Bossche
> Priority: Major
>
> When writing a file to feather, you get those warnings:
> {code}
> In [45]: pd.DataFrame({'a': [1, 2, 3]}).to_feather('test.feather')
> /home/joris/scipy/repos/arrow/python/pyarrow/feather.py:62: FutureWarning: Calling .data on ChunkedArray is provided for compatibility after Column was removed, simply drop this attribute
> if col.data.num_chunks == 1:
> /home/joris/scipy/repos/arrow/python/pyarrow/feather.py:97: FutureWarning: Calling .data on ChunkedArray is provided for compatibility after Column was removed, simply drop this attribute
> self.writer.write_array(name, col.data.chunk(0))
> {code}
> Since they are coming from pyarrow itself, we can (should) fix them.
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