pyarrow

Python library for Apache Arrow

pyarrow Permissive license Apache-2.0 Active ★ 17,021 v25.0.1 released 2026-08-10

Install

pyarrow on PyPI

pip

pip install pyarrow

uv

uv add pyarrow

poetry

poetry add pyarrow

Package facts

License	Apache-2.0 (permissive)
Python support	supports the current Python release (>=3.10)
Install friction	medium — platform-specific wheel
Runtime dependencies	none
Maintenance	actively maintained — 3 days since the last release
Last repo commit	2026-08-13
First released	2017-03-16
Popularity	one of the 100 most-downloaded packages on PyPI (30-day window, as of 2026-08-13)
Known vulnerabilities	none known (OSV.dev, checked 2026-08-13)

Evidence: pyarrow-25.0.1-cp310-cp310-macosx_12_0_arm64.whl; pyarrow-25.0.1-cp310-cp310-macosx_12_0_x86_64.whl; pyarrow-25.0.1-cp310-cp310-manylinux_2_28_aarch64.whl; pyarrow-25.0.1-cp310-cp310-manylinux_2_28_x86_64.whl; pyarrow-25.0.1-cp310-cp310-musllinux_1_2_aarch64.whl; pyarrow-25.0.1-cp310-cp310-musllinux_1_2_x86_64.whl; pyarrow-25.0.1-cp310-cp310-win_amd64.whl; pyarrow-25.0.1-cp311-cp311-macosx_12_0_arm64.whl; pyarrow-25.0.1-cp311-cp311-macosx_12_0_x86_64.whl; pyarrow-25.0.1-cp311-cp311-manylinux_2_28_aarch64.whl; pyarrow-25.0.1-cp311-cp311-manylinux_2_28_x86_64.whl; pyarrow-25.0.1-cp311-cp311-musllinux_1_2_aarch64.whl; pyarrow-25.0.1-cp311-cp311-musllinux_1_2_x86_64.whl; pyarrow-25.0.1-cp311-cp311-win_amd64.whl; pyarrow-25.0.1-cp312-cp312-macosx_12_0_arm64.whl; pyarrow-25.0.1-cp312-cp312-macosx_12_0_x86_64.whl; pyarrow-25.0.1-cp312-cp312-manylinux_2_28_aarch64.whl; pyarrow-25.0.1-cp312-cp312-manylinux_2_28_x86_64.whl; pyarrow-25.0.1-cp312-cp312-musllinux_1_2_aarch64.whl; pyarrow-25.0.1-cp312-cp312-musllinux_1_2_x86_64.whl

Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Free Threading :: 2 - Beta

About pyarrow

from the package's own PyPI description — quoted content, verbatim

<!--- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. -->

Python library for Apache Arrow

pypi (image) conda-forge (image)

This library provides a Python API for functionality provided by the Arrow C++ libraries, along with tools for Arrow integration and interoperability...

Read as markdown · JSON record · Source repository · Homepage · Docs

AI interpretation — verify before relying

AI-generated interpretation of the package facts above; every digit, version, license, or vulnerability id it cites is grounded in the facts already shown on this page

pyarrow is a Python library providing access to Apache Arrow's C++ data structures and computation engine, enabling efficient columnar data processing and interoperability with pandas, NumPy, and other Python ecosystem tools.

Medium install friction due to compiled C++ dependencies across multiple platforms (macOS arm64/x86_64, Linux aarch64/x86_64, Windows). Pre-built wheels available for Python 3.10–3.12. Actively maintained with release 25.0.1 just 3 days old.

Apache-2.0 permissive license allows commercial and private use with minimal restrictions; you must include a copy of the license and notice file but face no copyleft obligations.

Usage

pip install pyarrow

import pyarrow as pa

table = pa.table({'col1': [1, 2, 3], 'col2': ['a', 'b', 'c']})
print(table)

Requires Python ≥3.10. On Windows, may require Visual C++ Redistributable for Visual Studio to be installed separately.

Verdict: pyarrow is a mature, actively maintained top-100 PyPI package with zero known vulnerabilities and permissive Apache-2.0 licensing. Medium install friction is typical for compiled libraries and well-mitigated by pre-built wheels across major platforms. Suitable for production data processing pipelines.

Needs verification

Whether the Visual C++ Redistributable requirement on Windows affects most users or is an edge case
Performance characteristics compared to alternative columnar formats for specific workloads
Adoption metrics beyond GitHub stars to assess ecosystem integration

columnar data format pythonapache arrow python bindingsefficient data serializationarrow ipc messagingparquet file handlingzero-copy data sharingpython data interchange