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build(python): Add build for riscv64 wheels #27149

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build(python): Add build for riscv64 wheels #27149

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cc4468a
build(python): create Python set up step for riscv64
threexc Apr 1, 2026
1f16bfc
build(python): Add linux-riscv64 to python binaries
threexc Apr 1, 2026
1970be3
build(python): Add linux-musl-riscv64 for python binaries
threexc Apr 1, 2026
3c4c4bf
build(python): use RISE Project setup-python
threexc Apr 7, 2026
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20 changes: 18 additions & 2 deletions .github/workflows/release-python.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ concurrency:

env:
PYTHON_VERSION: '3.10'
PYTHON_VERSION_LINUX_RISCV64: '3.11'
PYTHON_VERSION_WIN_ARM64: '3.11' # ARM64 Windows doesn't have older versions
CARGO_INCREMENTAL: 0
CARGO_NET_RETRY: 10
Expand Down Expand Up @@ -153,7 +154,7 @@ jobs:
fail-fast: false
matrix:
package: [polars-runtime-32, polars-runtime-64, polars-runtime-compat]
job_config: [linux-x64, linux-arm64, linux-musl-x64, linux-musl-arm64, macos-x64, macos-arm64, win-x64, win-arm64]
job_config: [linux-x64, linux-arm64, linux-riscv64, linux-musl-x64, linux-musl-arm64, linux-musl-riscv64, macos-x64, macos-arm64, win-x64, win-arm64]
include:
- job_config: linux-x64
os: ubuntu-latest
Expand All @@ -163,6 +164,10 @@ jobs:
os: linux-arm-large
architecture: aarch64
target: aarch64-unknown-linux-gnu
- job_config: linux-riscv64
os: ubuntu-24.04-riscv
architecture: riscv64
target: riscv64gc-unknown-linux-gnu
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@coastalwhite coastalwhite Apr 3, 2026

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Is there any reason to be this pessimistic when it comes to extensions? These are Linux only anyway, and I would guess that for high-performance applications you would want to, definitely, have B (Bit Manipulation) and V (Vector). In general, I would just follow RVA23 for now since that is what most Linux-capable SBCs are targeting.

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@threexc threexc Apr 7, 2026

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I'm not opposed to advancing the spec that we build wheels against, but for now I think this is the right place to start - it's consistent with most other projects building for riscv64, including uv and maturin itself.

I think it would be better to start with riscv64gc and follow up with another change to riscv64a23 once more RVA23-based platforms are actually available to users.

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@threexc threexc Apr 8, 2026

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It's also worth noting that doing so before manylinux catches up to RVA23 as the default would make any wheels built be noncompliant with that standard: https://peps.python.org/pep-0600/

- job_config: linux-musl-x64
os: ubuntu-latest
architecture: x86-64
Expand All @@ -171,6 +176,10 @@ jobs:
os: linux-arm-large
architecture: aarch64
target: aarch64-unknown-linux-musl
- job_config: linux-musl-riscv64
os: ubuntu-24.04-riscv
architecture: riscv64
target: riscv64-unknown-linux-musl
- job_config: macos-x64
os: macos-15-intel
architecture: x86-64
Expand Down Expand Up @@ -263,7 +272,7 @@ jobs:
swap-size-gb: 10

- name: Set up Python
if: matrix.os != 'windows-11-arm'
if: matrix.os != 'windows-11-arm' && matrix.os != 'ubuntu-24.04-riscv'
uses: actions/setup-python@v6
with:
python-version: ${{ env.PYTHON_VERSION }}
Expand All @@ -274,6 +283,13 @@ jobs:
with:
python-version: ${{ env.PYTHON_VERSION_WIN_ARM64 }}

- name: Set up Python (RISCV64 Linux)
if: matrix.os == 'ubuntu-24.04-riscv'
uses: riseproject-dev/setup-python@8b57351c0f828145e2ac14bd328c731503361b7a
with:
python-version: ${{ env.PYTHON_VERSION_LINUX_RISCV64 }}
mirror: https://raw.githubusercontent.com/riseproject-dev/python-versions/main

# Otherwise can't find `tomlq` after `pip install yq`
- name: Add Python scripts folder to GITHUB_PATH (ARM64 Windows)
if: matrix.os == 'windows-11-arm'
Expand Down