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

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0
• Component/s: C++, Python
• Labels: Analytics beginner pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19058
• Assignee: David Li
• Reporter: Uwe Korn
• Created: 02/Jun/18 15:39
• Updated: 11/Jan/23 07:22
• Resolved: 22/May/21 13:39

Description

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

Issue Links

• is a child of: ARROW-8894 [C++] C++ array kernels framework and execution buildout (umbrella issue)
• links to: GitHub Pull Request #10358