Problem
Accumulated idioms whose motivating constraints have expired; none affects behavior:
- The codebase splits almost 50/50 between two spellings of the same thing: 55
@njit vs 57 @jit(nopython=True. The keyword has been the default (and a no-op) since numba 0.59. Normalize to one spelling. Coordinate with the coverage-measurement fix in this milestone first — .coveragerc currently keys its exclusions on these decorator spellings, so changing them independently would silently move which code is measured.
_ivp.py:46: Py2-style super(IVP, self).__init__ (moot if the solve_ivp migration lands first — sequence accordingly).util/compat.py: the NumpyVersion < "1.28.0" branch is dead once the install-metadata issue raises the NumPy floor to ≥2 — the module collapses to copy_if_needed = None (keep the seam; shrink the body).- 16 ambiguous single-letter
l variables (E741) in numerical code; 18 lambda assignments (E731); printf-style formatting → f-strings.
quad.py:140 — the comment "TODO: I don't know what this does": archaeology against Miranda–Fackler's CompEcon (the module's cited source), then either explain or link.
Proposed change
Batch by kind, one small PR each, after the lint-gate ratchet in this milestone lands (its baseline makes these diffs enforceable). Several batches are self-contained enough for newcomers once the gate exists.
Acceptance criteria
From the July 2026 technical-debt audit (AI-assisted; claims verified against 28d4b3b on 2026-07-25).
Problem
Accumulated idioms whose motivating constraints have expired; none affects behavior:
@njitvs 57@jit(nopython=True. The keyword has been the default (and a no-op) since numba 0.59. Normalize to one spelling. Coordinate with the coverage-measurement fix in this milestone first —.coveragerccurrently keys its exclusions on these decorator spellings, so changing them independently would silently move which code is measured._ivp.py:46: Py2-stylesuper(IVP, self).__init__(moot if thesolve_ivpmigration lands first — sequence accordingly).util/compat.py: theNumpyVersion < "1.28.0"branch is dead once the install-metadata issue raises the NumPy floor to ≥2 — the module collapses tocopy_if_needed = None(keep the seam; shrink the body).lvariables (E741) in numerical code; 18 lambda assignments (E731); printf-style formatting → f-strings.quad.py:140— the comment "TODO: I don't know what this does": archaeology against Miranda–Fackler's CompEcon (the module's cited source), then either explain or link.Proposed change
Batch by kind, one small PR each, after the lint-gate ratchet in this milestone lands (its baseline makes these diffs enforceable). Several batches are self-contained enough for newcomers once the gate exists.
Acceptance criteria
nopython=Trueoccurrences at 0 (excluding signatures that genuinely require it); one decorator spelling throughout,cache=True/parallel=Truepreservedquad.py:140TODO resolved to an explanation or a referenceFrom the July 2026 technical-debt audit (AI-assisted; claims verified against
28d4b3bon 2026-07-25).