Publish wheels for Python 3.12+ using abi3

[kampersanda]

Summary

This PR updates packaging and CI so vibrato can publish wheels usable on Python 3.12, 3.13, and 3.14.

It switches the extension module to PyO3 abi3 with a minimum supported Python version of 3.10, allowing one cp310-abi3 wheel to work across supported CPython versions instead of building a separate wheel for each minor version.

Changes

• enable pyo3 abi3-py310
• set requires-python = ">=3.10"
• add dynamic = ["version"] for maturin
• update the maturin build requirement to >=1,<2
• test on Python 3.10 through 3.14
• build release wheels once per platform/architecture
• remove setup-python from the sdist job
• update GitHub Actions to checkout@v6 and setup-python@v6
• switch publishing from maturin upload to uv publish with Trusted Publishing
• fix TokenIterator to fully implement the Python iterator protocol
• update doctest version examples from 0.5.1 to 0.5.2

Requests

• Request wheel files for Python 3.12 and later #13

[Copilot]

Pull request overview

Updates the packaging and CI configuration for python-vibrato to publish a single cp38-abi3 wheel per platform (usable across newer CPython versions), while also aligning docs/examples and fixing iterator behavior in the PyO3 bindings.

Changes:

• Enable PyO3 abi3-py38 and set requires-python >= 3.8 / dynamic = ["version"] for maturin-based builds.
• Update GitHub Actions CI to test newer Python versions and build release artifacts once per platform/arch.
• Fix TokenIterator to implement __iter__, and refresh doctest version strings.

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/lib.rs	Adds TokenIterator.__iter__ to satisfy Python iterator protocol.
Cargo.toml	Enables PyO3 abi3-py38 for stable ABI wheels.
pyproject.toml	Updates maturin build requirement, declares dynamic version, and sets requires-python.
README.md	Updates doctest version string.
docs/source/examples.rst	Updates doctest version string.
.gitignore	Ignores Rust build artifacts and lockfile.
.github/workflows/CI.yml	Expands Python test matrix and revises release packaging steps/artifact naming.

Comments suppressed due to low confidence (1)

.github/workflows/CI.yml:147

• The release job downloads artifacts without specifying an output path. Depending on download-artifact defaults, this can create per-artifact subdirectories and make the later upload glob (*) brittle (e.g., attempting to upload directories). Consider downloading everything into a dedicated directory (like dist/) with merge-multiple: true, and uploading dist/* explicitly.

      - uses: actions/download-artifact@v4
        with:
          name: sdist
      - uses: actions/download-artifact@v4
        with:
          pattern: wheels-*
          merge-multiple: true
      - name: Publish to PyPI

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[kampersanda]

@vbkaisetsu I've fixed the code, and it's ready to review.

[vbkaisetsu]

Is there a specific reason you decided not to upload an sdist? We should probably include one so that users on platforms where we don't provide binaries can still build and use the package.

[kampersanda]

@vbkaisetsu

There wasn't any strong reason in particular. I just thought uploading only wheels, as we had done before, would be sufficient. But, I agree that providing an sdist would be beneficial, since it allows users on unsupported platforms to install the package from source. I've updated the release process accordingly, as 2b719bf.

I've confirmed that the following artifacts are downloaded:

./sdist/vibrato-0.2.0.tar.gz
./wheels-linux-i686/vibrato-0.2.0-cp310-abi3-manylinux_2_5_i686.manylinux1_i686.whl
./wheels-linux-x86_64/vibrato-0.2.0-cp310-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
./wheels-macos-universal2/vibrato-0.2.0-cp310-abi3-macosx_10_12_x86_64.macosx_11_0_arm64.macosx_10_12_universal2.whl
./wheels-windows-x64/vibrato-0.2.0-cp310-abi3-win_amd64.whl
./wheels-windows-x86/vibrato-0.2.0-cp310-abi3-win32.whl