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https://issues.apache.org/jira/browse/ARROW-5610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898927#comment-16898927
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Joris Van den Bossche commented on ARROW-5610:
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{quote}I'll try to take a pass this week, if time permits; we would like this
functionality{quote}
Did you further look at this?
{quote}
By the way, is there a Jira explicitly for being able to hook into to_pandas,
or a suggested way to efficiently do a custom Pandas conversion?)
{quote}
There is ARROW-2428 for this about a hook into {{to_pandas}} to specify a
custom conversion (there is also ARROW-5271 for the other way around: be able
to specify the final arrow array in pandas -> arrow conversion).
> [Python] Define extension type API in Python to "receive" or "send" a foreign
> extension type
> --------------------------------------------------------------------------------------------
>
> Key: ARROW-5610
> URL: https://issues.apache.org/jira/browse/ARROW-5610
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Python
> Reporter: Wes McKinney
> Priority: Major
> Fix For: 1.0.0
>
>
> In work in ARROW-840, a static {{arrow.py_extension_type}} name is used.
> There will be cases where an extension type is coming from another
> programming language (e.g. Java), so it would be useful to be able to "plug
> in" a Python extension type subclass that will be used to deserialize the
> extension type coming over the wire. This has some different API requirements
> since the serialized representation of the type will not have knowledge of
> Python pickling, etc.
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