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pynumaflow-lite: Drop Python 3.10 and add Python 3.15 to the supported versions. - #387
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Drop Python 3.10 and add Python 3.15 to the supported versions. - Set requires-python to >=3.11 and ruff target-version to py311. - Use typing.Self for __aenter__ return types and drop `from __future__ import annotations` in the stubs. - Use PyBaseExceptionGroup directly in combine_errors. The fallback for versions without BaseExceptionGroup is no longer necessary. - Use uv to install Python in CI and test on 3.11 to 3.15. - Move Dockerfile base images to slim-trixie. - Update ruff, maturin, and GitHub Actions versions. Signed-off-by: Sreekanth <prsreekanth920@gmail.com>
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Python 3.10 is EOL, so this raises the floor to 3.11 and cleans up the
things we were carrying only for 3.10.
The biggest change is how readiness works. Previously `wait_ready()`
took a `timeout` argument that was enforced in Rust, and `async with
server:` quietly used a 30 second default. That isn't how asyncio APIs
work: the caller owns cancellation, and the idiomatic way to bound an
await is `asyncio.timeout()`, which is available now that 3.11 is our
minimum. So `wait_ready()` no longer takes any arguments and polls
until the server is ready. pyo3-async-runtimes drops the Rust future
when the Python future is cancelled, so an expired `asyncio.timeout()`
really stops the polling loop instead of leaving it running behind us.
Removing the fixed 30s from `__aenter__` meant it needed another way to
avoid hanging forever when the server can't start. It now waits for
whichever comes first: the server becoming ready, or the server task
exiting. A startup failure (a bad socket path, for example) is raised
immediately, instead of after 30 seconds of polling a server that is
already dead.
The five async server wrappers (map, batchmap, mapstream, sink,
sourcetransform) were copies of each other that differed only in their
Rust core type, their handler annotation, and the name in error
messages. Rather than write the new `__aenter__` logic five times, they
now share a private `_AsyncServer` base class.
This is a breaking change to `wait_ready()`, but the package hasn't
been published yet, so now is the time to do it.
Smaller 3.11 cleanups:
- `combine_errors` uses `PyBaseExceptionGroup` directly. The
first-error-only fallback for interpreters without exception
groups is gone.
- `__aenter__` is annotated as returning `Self`.
- `datetime.UTC` instead of `timezone.utc`.
- Drop `from __future__ import annotations` from the stubs, where it
has no effect.
- CI no longer tests or builds wheels for 3.10.
- Example images move from Debian bullseye (EOL) to trixie.
Signed-off-by: Sreekanth <prsreekanth920@gmail.com>
BulkBeing
marked this pull request as ready for review
October 10, 2026 13:09
vigith
approved these changes
Oct 10, 2026
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from __future__ import annotationsin the stubs.timeoutparameter inwait_ready(timeout=10). Python >= 3.11 hasasyncio.timeout(10). Passingtimeoutto async functions is considered as a bad practice https://docs.astral.sh/ruff/rules/async-function-with-timeout/