# Ruff configuration — https://docs.astral.sh/ruff/
#
# CI gates on correctness rules only: pyflakes (F) plus the pycodestyle error
# subsets E4/E7/E9. These catch real problems — undefined names, unused imports
# and variables, redefinitions, bare excepts, syntax errors.
#
# Cosmetic rules (line-length E501, whitespace W2xx) are intentionally NOT
# enforced yet: turning them on would require reformatting the existing code in
# one large diff. Adopting `ruff format` is tracked as a roadmap item in README.
# Matches the CI matrix (3.11/3.12) and the Docker image (3.12). The pinned
# requirements no longer install on 3.9 or 3.10.
target-version = "py311"

[lint]
select = ["E4", "E7", "E9", "F"]