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Add manylinux_2_28 riscv64 entries to both libyaml and pyyaml build matrices. QEMU emulation is already configured for non-x86_64/non-aarch64 architectures, so riscv64 builds work without additional setup steps. Targets CPython 3.10-3.14 (including free-threaded). Marked as slow jobs to allow skipping during CI for PRs and pushes. Closes yaml#924
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Summary
Add
linux_riscv64wheels to the CI workflow for both libyaml and pyyaml builds.Changes
{ platform: manylinux_2_28, arch: riscv64 }to the libyaml build matrixmanylinux_2_28riscv64 entries for CPython 3.10–3.14 (including free-threaded) to the pyyaml build matrixCIBW_MANYLINUX_RISCV64_IMAGEenvironment variable for cibuildwheelomit: skip_slow_jobs) to avoid running on every PR/pushHow it works
The existing workflow already handles riscv64 correctly:
ubuntu-24.04(non-aarch64 fallback)matrix.arch != 'x86_64' && matrix.arch != 'aarch64'quay.io/pypa/manylinux_2_28_riscv64exists and worksEvidence
A tested riscv64 wheel is available in our community index:
https://gounthar.github.io/riscv64-python-wheels/simple/pyyaml/
Built natively on BananaPi F3 (SpacemiT K1, rv64imafdcv, 8 cores @ 1.6 GHz, 16 GB RAM).
Context
manylinux_2_28_riscv64is available in pypa/manylinuxCloses #924
Note: this work is part of the RISE Project effort to improve Python ecosystem support on riscv64 platforms. Native riscv64 CI runners are available for free via RISE RISC-V runners.