[GitHub] [arrow] wjones127 commented on a diff in pull request #13454: ARROW-13612: [Python] Allow specifying a custom type for converting ExtensionScalar to python object

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wjones127 commented on code in PR #13454:
URL: https://github.com/apache/arrow/pull/13454#discussion_r908768502


##########
docs/source/python/extending_types.rst:
##########
@@ -286,6 +286,36 @@ are available).
 The same ``__arrow_ext_class__`` specialization can be used with custom types defined
 by subclassing :class:`ExtensionType`.
 
+Custom scalar conversion
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you want scalars of your custom extension type to convert to a custom type when
+:meth:`ExtensionScalar.as_py()` is called, you can override the :meth:`ExtensionType.scalar_as_py()`
+method. For example, if we wanted the above example 3D point type to return a tuple instead
+of a list, we would implement::

Review Comment:
   ```suggestion
   method. For example, if we wanted the above example 3D point type to return a custom
   3D point class instead of a list, we would implement::
   ```



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