ruff.toml

# Ruff config tuned for a scientific / numerics codebase.
# Baseline PEP 8, but with exceptions where matching the math beats style purity.
line-length = 110

[lint]
# E/W: pycodestyle, F: pyflakes (real bugs — unused/undefined names),
# I: import sorting.
select = ["E", "F", "W", "I"]
ignore = [
    "E741",  # "ambiguous variable name" — l/m/n are quantum numbers here
    "E226",  # missing whitespace around * — keep dense math like 2*l+1
    "E221",  # multiple spaces before operator — allow aligned assignment blocks
    "E222",  # multiple spaces after operator — same
]

[lint.isort]
known-first-party = ["ecenet"]

[lint.per-file-ignores]
# Utility scripts, tests, and profiling tools use a deliberate compact
# `stmt; stmt` idiom — fine outside the ecenet/ library (which stays strict).
"scripts/*" = ["E702"]
"tools/*"   = ["E702"]
# Tests also import the package after a sys.path.insert (runnable standalone).
"tests/*"   = ["E702", "E402"]