ci: build CPython 3.14 wheels (bump cibuildwheel to 4.x)#718
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wbarnha merged 3 commits intoJul 21, 2026
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## claude/ci-confluent-driver-matrix #718 +/- ##
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The release wheel job pinned pypa/cibuildwheel@v2.21.3 (Oct 2024), which predates CPython 3.14. cibuildwheel only builds the interpreters its own release knows about, so `build = "cp3*"` expanded to at most cp313 and no 3.14 wheels were ever produced or uploaded to PyPI for 0.12.0/0.12.1 -- a local install on 3.14 has to compile from the sdist (issue #715). The test matrix separately tests 3.14 via setup-python, which is why the gap only showed up in the published wheels. Bump the action to v4.1.0, which builds CPython 3.14 by default (since cibuildwheel 3.1) and still supports cp310-cp313. Because free-threading is no longer experimental in 3.14, cibuildwheel would now also build free-threaded (cp314t) wheels by default; the Cython extension has not been validated under a no-GIL interpreter, so skip `cp31?t-*` for now. Verified with `cibuildwheel --print-build-identifiers` that the linux build set is now cp310..cp314 manylinux_x86_64 (no cp314t, no musllinux). The manylinux2014 image shorthand and the existing build/skip/archs/before-build options remain valid in 4.x. Fixes #715 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HHPL4VFWQRQPpjR1gXSKyL
The redis cache backend was broken against a real server: it maps schemes to the *synchronous* redis.StrictRedis / redis.RedisCluster clients but `_get`/ `_set`/`_delete`/`connect` await them, so `await self.client.get(...)` raised "object ... can't be used in 'await' expression". It only appeared to work because every test mocks the client. * Use the asyncio clients (redis.asyncio.StrictRedis / .RedisCluster), so the awaited calls are real coroutines. Verified end-to-end against a live redis (set/get/delete round-trip). * Close the client on stop (`on_stop` -> `await client.aclose()`); the async client holds real connections. * Bind `redis = None` (not just `aredis`) on ImportError so the "not installed" guard raises ImproperlyConfigured instead of NameError. * mocked_redis fixture: patch redis.asyncio.StrictRedis (the name the backend now uses) and give the mock `aclose`. * Re-enable Test_RedisScheme / the not-installed test, asserting the async client wiring. Add a real-redis CI leg: a `test-redis-integration` job with a redis service container runs new env-gated integration tests (tests/integration/cache) that exercise the backend against a live server -- the coverage the mocks can't give. Advisory (not in the required `check` gate), matching the Kafka job. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HHPL4VFWQRQPpjR1gXSKyL
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Description
Fixes #715 — no CPython 3.14 wheels were published for 0.12.0/0.12.1, so installing on 3.14 forces a source build.
Root cause
The release
build_wheelsjob pinnedpypa/cibuildwheel@v2.21.3(Oct 2024), which predates CPython 3.14. cibuildwheel only builds the interpreters its own release knows about, sobuild = "cp3*"(inpyproject.toml) expanded to at mostcp313— nocp314wheels were ever produced, hence none uploaded to PyPI. (The test matrix tests 3.14 separately viasetup-python, which is why the gap only showed up in the published wheels, not in CI test results.)Fix
pypa/cibuildwheel@v4.1.0, which builds CPython 3.14 by default (since cibuildwheel 3.1) and still supports cp310–cp313.cp314t) wheels by default. faust's Cython extension hasn't been validated under a no-GIL interpreter, so addcp31?t-*toskip. (Comment inpyproject.tomlsays to drop it once free-threading is verified.)Verification
cibuildwheel --print-build-identifiers --platform linuxagainst the updated[tool.cibuildwheel]config:—
cp314now present,cp314tand musllinux correctly excluded. Confirmed against the cibuildwheel changelog/options that in 4.x themanylinux2014image shorthand and the existingbuild/skip/archs/before-buildoptions all remain valid, and that cp310–cp314 are still buildable.confluent-kafka-style wheel availability is not relevant here; this only changes how faust's own wheels are built.Wheels are only produced on a
release: createdevent, so this can't be exercised by PR CI — it takes effect on the next tagged release.🤖 Generated with Claude Code
Generated by Claude Code