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GH-47696: [Docs] PyCapsule protocol implementation status #49550

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Docs:PyCapsule protocol implementation status
Daedalus-Icarus Mar 18, 2026
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53 changes: 53 additions & 0 deletions docs/source/python/extending_types.rst
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Expand Up @@ -78,6 +78,59 @@ A :class:`DataType` can be created by consuming the schema-compatible object
using :func:`pyarrow.field` and then accessing the ``.type`` of the resulting
Field.

The PyCapsule Interface has been adopted by a number of libraries in the Python
ecosystem. The following table provides an overview of the current implementation
status (see `the tracking issue <https://github.com/apache/arrow/issues/39195>`__
for the latest updates):

.. list-table:: PyCapsule Interface Implementation Status
:header-rows: 1

* - Library
- Status
* - `arro3 <https://github.com/kylebarron/arro3>`__
- Implemented

@raulcd raulcd Mar 25, 2026

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- Implemented
- ✓

* - `cuDF <https://docs.rapids.ai/api/cudf/stable/>`__
- Implemented
* - `DataFusion <https://datafusion.apache.org/python/>`__
- Implemented
* - `DuckDB <https://duckdb.org/>`__
- Implemented
* - `fastexcel <https://github.com/ToucanToco/fastexcel>`__
- Implemented
* - `GDAL/OGR <https://gdal.org/>`__
- Implemented
* - `GeoPandas <https://geopandas.org/>`__
- Implemented
* - `h3ronpy <https://github.com/nmandery/h3ronpy>`__
- Implemented
* - `ibis <https://ibis-project.org/>`__
- Implemented
* - `lonboard <https://github.com/developmentseed/lonboard>`__
- Implemented
* - `nanoarrow <https://arrow.apache.org/nanoarrow/>`__
- Implemented
* - `narwhals <https://narwhals-dev.github.io/narwhals/>`__
- Implemented
* - `pandas <https://pandas.pydata.org/>`__
- Implemented
* - `pantab <https://github.com/innobi/pantab>`__
- Implemented
* - `Pillow <https://python-pillow.org/>`__
- Implemented
* - `Polars <https://pola.rs/>`__
- Implemented
* - `PyArrow <https://arrow.apache.org/docs/python/>`__
- Implemented
* - `pyogrio <https://pyogrio.readthedocs.io/>`__
- Implemented
* - `PySpark <https://spark.apache.org/docs/latest/api/python/>`__
- Implemented
* - `quak <https://github.com/manzt/quak>`__
- Implemented
* - `VegaFusion <https://vegafusion.io/>`__
- Implemented

.. _arrow_array_protocol:

Controlling conversion to ``pyarrow.Array`` with the ``__arrow_array__`` protocol
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