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Posted to issues@arrow.apache.org by "Uwe L. Korn (JIRA)" <ji...@apache.org> on 2018/08/19 15:26:00 UTC

[jira] [Updated] (ARROW-2665) [Python/C++] Add index() method to find first occurence of Python scalar

     [ https://issues.apache.org/jira/browse/ARROW-2665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uwe L. Korn updated ARROW-2665:
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    Labels: Analytics  (was: )

> [Python/C++] Add index() method to find first occurence of Python scalar
> ------------------------------------------------------------------------
>
>                 Key: ARROW-2665
>                 URL: https://issues.apache.org/jira/browse/ARROW-2665
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: C++, Python
>            Reporter: Uwe L. Korn
>            Priority: Major
>              Labels: Analytics
>
> Python lists have an {{index(x, start, end)}} method to find the first occurence of an element. We should add a method with the same interface supporting Python scalars on the typical triplet {{Array/ChunkedArray/Columns}}.
> See also https://docs.python.org/3.6/tutorial/datastructures.html#more-on-lists



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