Align Python version support with CI matrix (drop 3.9)#44
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Python 3.9 reached end-of-life in October 2025. CI already tests 3.10 through 3.14, but pyproject still declared support starting at 3.9 and classified up to 3.12 only. - Bump requires-python to >=3.10 and update classifiers to 3.10-3.14 - Drop now-dead conditional deps (importlib-metadata < 3.8, typing-extensions <= 3.9) - Bump ruff target-version to py310 (autofixes Optional[X] -> X | None) - Simplify ParamSpec import in safe_sdk (now in typing on 3.10+) - Simplify importlib.metadata import in __init__.py (no fallback needed) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Python 3.9 reached end-of-life in October 2025. CI tests 3.10–3.14, but
pyproject.tomlstill declared support starting at 3.9 and classified only up to 3.12.requires-pythonto>=3.10importlib-metadata; <3.8,typing-extensions; <=3.9)target-versiontopy310safe_sdk.py:ParamSpecis intypingon 3.10+__init__.py:importlib.metadatais stdlib since 3.8, no fallback neededOptional[X]→X | Noneinsafe_sdk.py(allowed at py310)This is a breaking change for anyone still on 3.9 — should ride along with the next release.
Test plan
uv syncresolves cleanly with new pintest_celery::test_task_mapunrelated)🤖 Generated with Claude Code