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https://issues.apache.org/jira/browse/ARROW-1753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16226847#comment-16226847
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ASF GitHub Bot commented on ARROW-1753:
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pcmoritz commented on issue #1272: ARROW-1753 [Python] Provide for matching
subclasses with register_type in serialization context
URL: https://github.com/apache/arrow/pull/1272#issuecomment-340764058
So to make this also work for the `type` class, I had to replace `.mro()` by
`.__mro__`, see
https://stackoverflow.com/questions/34358767/why-does-mro-on-a-metaclass-have-a-different-signature-descriptor-mro-of
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> [Python] Provide for matching subclasses with register_type in serialization
> context
> ------------------------------------------------------------------------------------
>
> Key: ARROW-1753
> URL: https://issues.apache.org/jira/browse/ARROW-1753
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Wes McKinney
> Labels: pull-request-available
> Fix For: 0.8.0
>
>
> Copied from https://github.com/apache/arrow/issues/1269
> To allow factoring out serialization code to a common base class it would be
> useful if register_type matches all subclasses rather than simply an exact
> match on the specific type.
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