onnxoptimizer: Add version 0.4.2

[luhenry]

• Package: onnxoptimizer
• Version: 0.4.2
• Source: https://github.com/onnx/optimizer
• Docs: https://github.com/onnx/optimizer

Compiles onnxoptimizer's nanobind/CMake ONNX graph-optimizer extension, which statically links vendored onnx and protobuf. Upstream publishes no riscv64 wheel.

Mirrors upstream's build-and-test.yml.

Differs from upstream

• Drops the flake8p/mypy lint step and the onnxscript/torch/torchvision test installs - none have riscv64 wheels and onnxscript isn't imported by any test

Matrix: cp311, cp312 only (upstream itself ships cp310/cp311/cp312-abi3, no cp313/cp314/cp314t). cp310 is dropped: onnx has no riscv64 wheel for it anywhere, and no py3-none-any fallback either.

Testing

• onnxruntime added to test-requires on cp312 only, where our registry ships it, to run the onnxruntime-gated tests instead of skipping them

License: Statically links vendored onnx (Apache-2.0) and protobuf (BSD-3-Clause), which pulls in abseil-cpp (Apache-2.0); abseil ships no NOTICE file to propagate.

[github-actions]

PR Preview Action v1.8.1
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2026-09-24 06:43 UTC

[luhenry]

Heads up: the completed run only produced a cp312-manylinux_riscv64 build job (https://github.com/riseproject-dev/python-wheels/actions/runs/35941588765/job/107450461687) - no cp311 job ran, even though include lists both. An include list whose entries share no key with the base matrix (here just version) collapses onto a single combination instead of adding one job per entry; only the last entry's keys stick. Making python a real matrix dimension (python: [cp311, cp312] alongside include for onnxruntime) fixes it - see #2266 for the corrected shape.

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