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chore: require Python 3.11+, the oldest supported CPython - #15
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3.9 went end-of-life in 2025-10 and 3.10 on 2026-10-01; local development ran on 3.9 while CI ran 3.12, which is how a 3.9-only datetime bug slipped past CI. The floor is now 3.11 (wikilint.MIN_PYTHON), tracking the oldest CPython in security support and bumped each October. - wikilint/__init__.py checks the interpreter before importing the engine, so an older python3 (including via the pre-commit hook) gets a one-line message naming the version found instead of a traceback. - CI runs a 3.11 + 3.14 matrix: the floor and the newest release. - parse_okf_datetime drops its Z/fraction/+HHMM normalization; 3.11's fromisoformat parses those natively. The regression tests stay. - README states the requirement and the macOS /usr/bin/python3 caveat.
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Summary
Standardizes the Python requirement at 3.11+, the oldest CPython still in security support (EOL 2027-10). 3.9 reached end of life in 2025-10 and 3.10 on 2026-10-01. Local development had been running on 3.9 while CI ran 3.12, which is how a 3.9-only datetime bug slipped past CI in #14.
wikilint/__init__.pychecks the interpreter before importing the engine. An olderpython3, including one run by the pre-commit hook, printsScriptorium's lint engine needs Python 3.11+, found 3.9.6. ...and exits 1. The module stays parseable by old interpreters so the message always prints.3.11(the floor) and3.14(the newest release).parse_okf_datetimedrops the normalization added in feat: adopt OKF page-level title, generated, and status keys #14, since 3.11'sfromisoformatparsesZ, any fraction length and+HHMMnatively. The regression tests are kept./usr/bin/python3caveat.Policy: raise
MIN_PYTHONeach October when the oldest supported version reaches end of life (next: 3.12 in 2027-10).Test plan
tests/test_python_floor.py(floor value, message, guard ordering, README, CI matrix) written red first/usr/bin/python3(3.9.6) onlint.py checkprints the one-line message and exits 1