python-ruff-debt-cleanup
The remaining non-ASCII matches are all legitimate Unicode punctuation (em dashes —, ellipsis …, and → arrows), which are fine in a markdown document. The stray corrupt characters are gone.
The solution document is complete at ~/solution-python-ruff-debt-cleanup.md (310 lines).
This environment contained only the problem description — no actual target repo — so I produced the requested deliverable: a self-contained, directly usable markdown solution for the python-ruff-debt-cleanup problem class. I verified the local tooling (ruff 0.15.22 with --fix, --fix-only, --unsafe-fixes, --diff) so every command in the doc is accurate.
The document covers the four required sections:
ruff check (E401/F401/E701/E702/E722), why the two-phase approach is necessary (ruff auto-fixes E401/F401 but not E701/E702/E722), and why each fix is behavior-preserving.ruff check <files> --fix --fix-only) for E401 import-split + F401 dead-import removal, then Phase B manual rewrites for E701/E702 (split multi-statement colon/semicolon lines with correct indentation, including the tricky return-in-block case) and E722 (bare except: → except Exception:).py_compile static check, ruff check exit-0 (the PASS criterion), live script-mode probes against the built server (driver_e2e 20/20, cdc_e2e 27/27), and the full-suite unittest guard — matching the problem's stated PASS/behavior requirements.I also fixed two typos that slipped into the initial file ("/indentation" → "split/indentation", "one command cteas" → "one command clears").
# Evidence - Problem class: python-ruff-debt-cleanup - Model: openrouter/deepseek/deepseek-v4-flash-0731 - Solved: 2026-08-24T11:25:29.614Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "Mechanical cleanup of pre-existing ruff debt in Python E2E test files (rethinkdb fork): run `ruff check --fix` first (handles E401 import-split and F401 dead-import removal), then fix remaining manually \u2014 E701/E702 multi-statement lines split onto separate lines, E722 bare except -> except Exception (safe: driver exceptions are Exception subclasses, timeout sentinels unaffected). PASS = `ruff check <files>` exit 0. Behavior unchanged verified via py_compile + running the script-mode probes live against the built server (driver_e2e 20/20, cdc_e2e 27/27). Guard runs full-suite unittest after; judge tier2 live-executes the criterion.", "environment": "", "language": "", "model": "openrouter/deepseek/deepseek-v4-flash-0731", "problem_class": "python-ruff-debt-cleanup", "provider": "openrouter", "solved_at": "2026-08-24T11:25:29.614Z", "version": ""}The remaining non-ASCII matches are all legitimate Unicode punctuation (em dashes —, ellipsis …, and → arrows), which are fine in a markdown document. The stray corrupt characters are gone.
The solution document is complete at ~/solution-python-ruff-debt-cleanup.md (310 lines).
This environment contained only the problem description — no actual target repo — so I produced the requested deliverable: a self-contained, directly usable markdown solution for the python-ruff-debt-cleanup problem class. I verified the local tooling (ruff 0.15.22 with --fix, --fix-only, --unsafe-fixes, --diff) so every command in the doc is accurate.
The document covers the four required sections:
ruff check (E401/F401/E701/E702/E722), why the two-phase approach is necessary (ruff auto-fixes E401/F401 but not E701/E702/E722), and why each fix is behavior-preserving.ruff check <files> --fix --fix-only) for E401 import-split + F401 dead-import removal, then Phase B manual rewrites for E701/E702 (split multi-statement colon/semicolon lines with correct indentation, including the tricky return-in-block case) and E722 (bare except: → except Exception:).py_compile static check, ruff check exit-0 (the PASS criterion), live script-mode probes against the built server (driver_e2e 20/20, cdc_e2e 27/27), and the full-suite unittest guard — matching the problem's stated PASS/behavior requirements.I also fixed two typos that slipped into the initial file ("/indentation" → "split/indentation", "one command cteas" → "one command clears").
# Evidence - Problem class: python-ruff-debt-cleanup - Model: openrouter/deepseek/deepseek-v4-flash-0731 - Solved: 2026-08-24T11:25:29.614Z - Verification: solution produced by pi in sandbox; see signatures.json
{"description": "Mechanical cleanup of pre-existing ruff debt in Python E2E test files (rethinkdb fork): run `ruff check --fix` first (handles E401 import-split and F401 dead-import removal), then fix remaining manually \u2014 E701/E702 multi-statement lines split onto separate lines, E722 bare except -> except Exception (safe: driver exceptions are Exception subclasses, timeout sentinels unaffected). PASS = `ruff check <files>` exit 0. Behavior unchanged verified via py_compile + running the script-mode probes live against the built server (driver_e2e 20/20, cdc_e2e 27/27). Guard runs full-suite unittest after; judge tier2 live-executes the criterion.", "environment": "", "language": "", "model": "openrouter/deepseek/deepseek-v4-flash-0731", "problem_class": "python-ruff-debt-cleanup", "provider": "openrouter", "solved_at": "2026-08-24T11:25:29.614Z", "version": ""}