Files
f1b21f1945 GH-36411: [Python] Use scikit-build-core as build backend for PyArrow and get rid of setup.py (#49259)
### Rationale for this change

Move our PyArrow build backend from setuptools and a custom setup.py to scikit-build-core which is just build backend for CMake related projects.

### What changes are included in this PR?

Move from setuptools to scikit-build-core and remove PyArrow setup.py. Update some of the build requirements and minor fixes.
A custom build backend has been also been created in order to wrap scikit-build-core in order to fix problems on License files for monorepos.
pyproject.toml metadata validation expects license files to exist before exercising the build backend that's why we create symlinks. Our thin build backend will just make those symlinks hard-links in order for license and notice files to contain the contents and be added as part of the sdist.

Remove flags that are not used anymore (were only part of setup.py) and documented and validated how the same flags have to be used now.

### Are these changes tested?

Yes all Python CI tests, wheels and sdist are successful.

### Are there any user-facing changes?

Yes, users building PyArrow will now require the new build dependencies to exercise the build and depending on the flags used they might require to use the new documented way of using those flags.

* GitHub Issue: #36411

Lead-authored-by: Raúl Cumplido <raulcumplido@gmail.com>
Co-authored-by: Joris Van den Bossche <jorisvandenbossche@gmail.com>
Co-authored-by: Rok Mihevc <rok@mihevc.org>
Signed-off-by: Raúl Cumplido <raulcumplido@gmail.com>
2026-03-09 09:47:21 +01:00

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# 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.
{% import 'macros.jinja' as macros with context %}
{{ macros.github_header() }}
# env: is generated by macros.github_header()
ARROW_JEMALLOC: "{{ arrow_jemalloc }}"
CC: "clang"
CMAKE_BUILD_TYPE: release
CXX: "clang++"
MACOSX_DEPLOYMENT_TARGET: "{{ macos_deployment_target }}"
PYARROW_VERSION: "{{ arrow.no_rc_version }}"
PYTHON_VERSION: "{{ python_version }}"
PYTHON_ABI_TAG: "{{ python_abi_tag }}"
{% if python_abi_tag.endswith('t') %}
PYTHON: "/Library/Frameworks/PythonT.framework/Versions/{{ python_version }}/bin/python{{ python_version }}t"
{% else %}
PYTHON: "/Library/Frameworks/Python.framework/Versions/{{ python_version }}/bin/python{{ python_version }}"
{% endif %}
VCPKG_DEFAULT_TRIPLET: "{{ vcpkg_arch }}-osx-static-release"
VCPKG_FEATURE_FLAGS: "manifests"
VCPKG_OVERLAY_TRIPLETS: {{ "${{ github.workspace }}/arrow/ci/vcpkg" }}
VCPKG_ROOT: {{ "${{ github.workspace }}/vcpkg" }}
permissions:
packages: write
jobs:
build:
name: Build wheel for Python {{ python_version }} on macOS
runs-on: "{{ runs_on }}"
env:
VCPKG_BINARY_SOURCES: 'clear;nuget,GitHub,readwrite'
steps:
{{ macros.github_checkout_arrow()|indent }}
- name: Install System Dependencies
run: |
brew install bash bison coreutils mono ninja
echo "$(brew --prefix bison)/bin" >> $GITHUB_PATH
- name: Homebrew packages
run: |
brew list
# CMake 3.29.1 that is pre-installed on the macOS image has a problem.
# See also: https://github.com/microsoft/vcpkg/issues/37968
- name: Install CMake 3.29.0
shell: bash
run: |
arrow/ci/scripts/install_cmake.sh 3.29.0 ${PWD}/local
echo "${PWD}/local/bin" >> $GITHUB_PATH
- name: Retrieve VCPKG version from arrow/.env
run: |
vcpkg_version=$(. "arrow/.env" && echo "${VCPKG}")
echo "VCPKG_VERSION=$vcpkg_version" >> $GITHUB_ENV
- name: Install Vcpkg
env:
GITHUB_TOKEN: {{ '${{ secrets.GITHUB_TOKEN }}' }}
run: arrow/ci/scripts/install_vcpkg.sh $VCPKG_ROOT $VCPKG_VERSION
- name: Add Vcpkg to PATH
run: echo ${VCPKG_ROOT} >> $GITHUB_PATH
- name: Install Packages
run: |
vcpkg install \
--clean-after-build \
--x-install-root=${VCPKG_ROOT}/installed \
--x-manifest-root=arrow/ci/vcpkg \
--x-feature=azure \
--x-feature=flight \
--x-feature=gcs \
--x-feature=json \
--x-feature=opentelemetry \
--x-feature=orc \
--x-feature=parquet \
--x-feature=s3
- name: Install Python {{ python_version }}
run: sudo arrow/ci/scripts/install_python.sh macos {{ python_version + "t" if python_abi_tag.endswith('t') else python_version }}
- name: Build Wheel
run: |
$PYTHON -m venv build-env
source build-env/bin/activate
pip install --upgrade pip wheel
PYTHON=python arrow/ci/scripts/python_wheel_macos_build.sh {{ arch }} $(pwd)/arrow $(pwd)/build
- uses: actions/upload-artifact@v4
with:
name: wheel
path: arrow/python/repaired_wheels/*.whl
# Use a well-known Python version for the GCS testbench, and avoid
# putting it in PATH.
- name: Set up Python for GCS testbench
uses: actions/setup-python@v5.1.1
id: gcs-python-install
with:
python-version: 3.12
update-environment: false
- name: Install GCS testbench
env:
PIPX_BIN_DIR: /usr/local/bin
PIPX_BASE_PYTHON: {{ '${{ steps.gcs-python-install.outputs.python-path }}' }}
run: arrow/ci/scripts/install_gcs_testbench.sh default
- name: Install MinIO
run: |
$(brew --prefix bash)/bin/bash \
arrow/ci/scripts/install_minio.sh latest /usr/local
- name: Test Wheel
env:
PYTEST_ADDOPTS: "-k 'not test_cancellation'"
PYTHON_GIL: {{ 0 if python_abi_tag.endswith('t') else 1 }}
run: |
$PYTHON -m venv test-env
source test-env/bin/activate
pip install --upgrade pip wheel
arch -{{ arch }} arrow/ci/scripts/python_wheel_unix_test.sh $(pwd)/arrow
{{ macros.github_upload_releases("arrow/python/repaired_wheels/*.whl")|indent }}
{{ macros.github_upload_wheel_scientific_python("arrow/python/repaired_wheels/*.whl")|indent }}