ignore/fix ruff 0.16 new errors - #3358

Ignored (unlikely to fix / too much to fix)

• G010 (112) — PySCF's Logger uses warn, not warning
• I001 (1396) — unsorted import block
• UP031 (1203) — percent formatting
• UP034 (90) — non-PEP-585 annotation
• EXE001 (986) — shebang present but file not executable
• B008 (193) — function call in argument defaults (e.g. getattr, np.zeros)
• RUF012 (150) — mutable default value for class attribute
• RUF100 (124) — unused # noqa directive
• RUF059 (940) — unpacked variable never used
• N999 Invalid module names

Ignored (need newer python)

• "UP006", Tuple[int] → tuple[int] — requires Python 3.9+
• "UP007", Union[X, Y] → X | Y — requires Python 3.10+
• "UP035", typing.Tuple deprecated — requires Python 3.9+
• "FURB188", str.removeprefix() — requires Python 3.9+
• "RUF007", zip(x[:-1], x[1:]) → itertools.pairwise() — requires Python 3.10+

Ignored (unnecessary)

• RUF022, sort __all__ alphabetically
• PIE808 (21) — unnecessary start=0 in range()
• FURB105,

Ignored (safe, kept for future fix)

• B009 (30) — getattr used for attribute access
• FURB122 (20) — use continue in try-except
• SIM114 (18) — combine identical bodies in if-else
• PIE790 (13) — unnecessary pass
• C408 (13) — unnecessary tuple()/dict() call
• SIM118 (12) — use key in dict instead of key in dict.keys()
• PLR1736 (11) — list index lookup in enumerate loop
• PLR1711 (112) — merge isinstance calls
• PLR1716 (9) — chain boolean comparison
• SIM102 (54) — collapsible if statement
• B023 (148) — function definition does not bind loop variable
• B006 (66) — mutable default for argument (e.g. [], {})
• SIM113 (9) — use enumerate() instead of manual index
• "SIM401", d.get(k, default) instead of if-else
• "PIE810", single startswith/endswith with tuple
• "SIM117", merge nested with statements
• "UP028", yield from instead of yield
• "UP018", shorthand type(...)
• "SIM201", not a == b → a != b
• "SIM103", use return for simple conditional
• "UP030", implicit positional format references
• "FURB161", bin(x).count('1') → x.bit_count()
• "PERF102", use .keys()/.values() instead of .items()
• "PLC0206", for key in d: use d[key] → use .items()
• "PLC0414", import alias
• UP036, C405, SIM101, RUF010, RUF051, RET501, FLY002

Ignored (bug risk)

• TRY004 (34) — prefer TypeError for invalid type
• SIM115 (18) — use context manager for opening files
• BLE001 (16) — do not catch blind Exception
• PLR1704 (13) — redefine variable in inner scope
• TRY002 (12) — create your own exception
• TRY201 (11) — use raise ... from err

• "PLW0127", self-assignment — potential real bugs
• "B018", useless expression — needs per-site judgment
• "S110", try-except-pass — intentional error suppression
• "S102", exec() — intentional in __config__.py and misc.py
• "PLW0406", module imports itself — intentional pattern
• "FA100", missing from __future__ import annotations
• "B020", loop variable overrides outer — actual bug risk
• "PYI036", __exit__ missing exception parameters
• "PYI006", sys.version_info comparison — use < or >= only

• SIM223, PLR1722, PLR0206, PLW1508, PLW0642, PLW0128

Fixed (auto-fixed with --fix)

• UP032 (356) — .format() → f-string
• FURB168 (88) — isinstance(x, type(None)) → x is None
• UP030 (111) — redundant positional format indices
• PLR2044 — empty trailing # comment
• SIM905 — constant str.split() → list literal
• PLR1730 (20) — use ternary operator instead of if-else
• PLR0402 (16) — use from x import y instead of alias
• B033 (11) — duplicate value in set
• C409, C400, RUF046, UP010, UP004, UP024, UP039, UP009, TRY203

Fixed (real bug)

• ISC004 (missing comma in radc_ip._keys)