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Add Windows ARM64 wheels to the release pipeline #2082
Description
Hi Rich Chiodo (@rchiodo) , I'm from Microsoft and recently I'm working on improving Python ecosystem support for Windows on Arm. I want to add support for Windows ARM64 builds and tests of debugpy, but I find that wheel building, signing, and publishing happen in separate internal pipelines (
).Could you please help to support this?
Feature request
Please add native Windows ARM64 (win_arm64) wheels to debugpy’s existing build, signing, and PyPI release pipeline, for supported CPython versions that provide Windows ARM64 builds.
This would let users running native ARM64 Python on Windows install a prebuilt package without compiling debugpy locally or switching to x64 Python under emulation.
Current repository configuration
A few places appear to need attention:
azure-pipelines/pipelines.yamlnotes that wheel building, signing, and publishing happen in separate internal pipelines, so the release build matrix is not available in this repository.setup.pyonly retains Windows native binaries for thewin32andwin-amd64platforms; ARM64 packaging would need to be included.- The Windows attach-helper build script currently builds only x86 and x64 binaries. ARM64 compatibility for those helpers may need separate work.
Desired outcome
- Publish correctly tagged
win_arm64wheels through the existing release process. - Build and package the appropriate ARM64 native extensions.
- Add native Windows ARM64 installation and basic debugging coverage.
- Document any remaining limitations, particularly attaching to an existing process.
Activity
rchiodo commentedon Oct 8, 2026
Finn Womack (@finnagin) do you know if ARM64 is possible now? I believe this wasn't enabled yet because the builds were failing but I could be remembering wrong.
finnagin commentedon Oct 8, 2026
Rich Chiodo (@rchiodo) it's definitely possible. I think before it needed to be cross-compiled as there were not arm64 runners available in AzDo but idk if that is still the case and even if it was, it's not a blocker we would just need to do a little extra work to update the build script to allow cross-compilation for arm64 builds.
rchiodo commentedon Oct 8, 2026
Okay I'm going to look into getting this working.
finnagin commentedon Oct 8, 2026
Looks like they still are not available so it would just need to be cross compiled.
finnagin commentedon Oct 8, 2026
Also, iirc it may have been attach to process that was broken in arm64. But that was the only part I think.
rchiodo commentedon Oct 8, 2026
I thought we fixed that. Maybe just for Mac.
chinazhangchao commentedon Oct 9, 2026
Hi Rich Chiodo (@rchiodo), thank you very much for your help. Please let me know if there’s any progress. Thanks.
finnagin commentedon Oct 9, 2026
Hey Chao Zhang (@chinazhangchao), we've now merged #2083 which enables us to build arm64 wheels. We still need to update the internal pipelines now that this is in main but I wanted to update you on the progress.
chinazhangchao commentedon Oct 10, 2026
Amazing progress! Thanks for the info.
chinazhangchao commentedon Oct 14, 2026
Hi Finn Womack (@finnagin), is there any update on the internal pipelines?