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https://issues.apache.org/jira/browse/ARROW-3557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rok Mihevc updated ARROW-3557:
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External issue URL: https://github.com/apache/arrow/issues/19871
> [Python] Set language_level in Cython sources
> ---------------------------------------------
>
> Key: ARROW-3557
> URL: https://issues.apache.org/jira/browse/ARROW-3557
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Affects Versions: 0.11.0
> Reporter: Antoine Pitrou
> Assignee: Antoine Pitrou
> Priority: Minor
> Labels: pull-request-available
> Fix For: 0.12.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Cython 0.29.0 emits the following warning:
> {code}
> C:\Miniconda36-x64\envs\arrow\lib\site-packages\Cython\Compiler\Main.py:367:
> FutureWarning: Cython directive 'language_level' not set, using 2 for now
> (Py2). This will change in a later release! File:
> C:\projects\arrow\python\pyarrow\_parquet.pxd
> {code}
> We should probably try to switch it to Python 3.
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