[ARROW-13612] [Python] Allow specifying a custom type for converting ExtensionScalar to python object

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.0.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/29253
• Assignee: Rok Mihevc
• Reporter: Joris Van den Bossche
• Created: 12/Aug/21 07:41
• Updated: 11/Jan/23 08:34
• Resolved: 06/Jul/22 19:26

Description

As a follow-up on ARROW-13541 (https://github.com/apache/arrow/pull/10904#discussion_r686609844), we could have a mechanism that the ExtensionType can control the behaviour of ExtensionScalar.as_py() method.

Similarly as we have __arrow_ext_class__ for using an ExtensionArray subclass for the array object, we could indeed have a way to specify a custom scalar wrapper.

Issue Links

• is related to: ARROW-13541 [C++][Python] Implement ExtensionScalar
• links to: GitHub Pull Request #13454