chore: add Python 3.14 to CI matrix and pyproject classifiers (Modernization Phase 6)#47
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Python 3.14 went GA in October 2025. With the modernization phases 1-5 landed (pathlib support, UTC datetimes, collections.abc imports, Font.color non-mutation, uv-managed deps, pyright strict on public API), the codebase already runs clean on 3.14 locally — adding it to the CI matrix is the last missing surface. Changes: - .github/workflows/ci.yml: append "3.14" to the test job matrix - pyproject.toml: add 'Programming Language :: Python :: 3.14' classifier requires-python stays at >=3.9; no lower-version drop. Verification (local, CPython 3.14.4): - python3 -m pytest tests/ -q → 3485 passed in 6.56s - python3 -m ruff check src tests → All checks passed - python3 -m ruff format --check → 215 files already formatted - python3 -m behave features/ → 1048 scenarios, 0 failed; 3151 steps, 0 failed Refs #29.
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Summary
Adds Python 3.14 to the CI test matrix and the
python-pptx-extendedclassifier list. Final missing surface from the Modernization & Ergonomics epic (#29).Python 3.14 went GA in October 2025. Phases 1–5 (PathLike, UTC datetimes,
collections.abcimports, Font.color non-mutation, uv-managed deps, pyright strict on public API) already landed the substantive modernization work — adding 3.14 to the matrix at this point is a free addition: tests pass locally on CPython 3.14.4 with zero newfilterwarningsallowlist entries needed.Changes
.github/workflows/ci.yml— append"3.14"to the test job matrix (fail-fast: falseso a 3.14 regression doesn't mask the other versions)pyproject.toml— addProgramming Language :: Python :: 3.14classifierrequires-pythonstays at>=3.9; no lower-version drop.Local verification (CPython 3.14.4)
Refs #29.