WUT_Computer_Science/NotProgramming
Krzysztof kuhy Rudnicki cc06bc0cd8 EARIN: zero findings, verified against byte-identical program output
749 findings across six labs and two projects. The mechanical half was
scripted; everything below is what the scripts got wrong or could not do, and
how it was caught.

Three regressions I introduced and then found by RUNNING the code, not by
reading it:

- Converting print() to logger.info() made the programs SILENT. logging's
  last-resort handler only emits WARNING and above, so with no basicConfig
  call `lab2/main.py -t 1 1` printed nothing at all. Fifteen files across the
  repo now configure logging where they log.
- The same conversion dropped `end=""`. lab2 draws its board one square at a
  time and lab1 draws the maze one cell at a time; both came out one glyph
  per line. Those thirteen call sites are sys.stdout.write again, and the
  rendered board now diffs byte-identically against the pre-change output.
- The B007 fix renamed `col` to `_col` in the FIRST loop it matched, which
  was print_letters -- where the variable IS used. That would have been a
  NameError on the first call.

And one the scripts caused silently: annotating 110 signatures dropped the
DEFAULT VALUES from 22 of them, so `preprocessing(a, b, USER_THRESHOLD,
ANIME_THRESHOLD)` would have raised TypeError. Every signature is now diffed
against the pre-change version, name by name and default by default: zero
mismatches.

Real defects the lint surfaced:

- `alpha_beta` ended with an unreachable `return None` that violated its own
  return type. Its maximising and minimising halves were mirror images, so
  they are one `_search_branch` now (C901 11 -> ok).
- `get_data`'s `gpu` switch, `predict`'s `auto`, `create_model`'s
  `rows_number` and five of `preprocess_model_predict`'s fifteen parameters
  were never read. Gone, with their call sites.
- np.random.* -> Generator throughout (NPY002), `.values` -> `.to_numpy()`,
  `datetime.now()` with a tzinfo, `inplace=True` removed, `except:` given a
  type, `random.*` -> `SystemRandom` (S311).
- print_board's three nested helpers became methods (C901 17 -> ok);
  user_input's nine-branch if-ladder became a table (C901 12 -> ok).

Verification, all by running: lab1 `-t` and lab2 `-t 1 1` produce output
byte-identical to the pre-change code; lab2's rendered 8x8 board diffs clean;
lab3's argument parsing returns the same dict for the same argv; lab4 fails
identically before and after (no sklearn here). Also included: the logging
configuration for NLP, MOM and ECRYPT_PROJECT, which had the same silence bug.

Repo-wide: 2,775 findings -> 1,883.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
2026-08-28 20:39:53 +02:00
..
DPZ Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
ECOGR Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
EDABA Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
EDABA-LAB Run all 33 safe courses; fix what that broke 2026-08-28 18:52:31 +02:00
EDISE Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
EDISP Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
ELAC Split 19 over-cap LaTeX reports, proving each PDF is unchanged 2026-08-28 19:47:12 +02:00
EMISY Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
ENUME Split 19 over-cap LaTeX reports, proving each PDF is unchanged 2026-08-28 19:47:12 +02:00
EPHY2 Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
EPOGAI Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
ERPM Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
ESDP1 Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
ESOEN Add a run.sh to every course, and fix the code that would not build 2026-08-28 18:37:55 +02:00
MOM EARIN: zero findings, verified against byte-identical program output 2026-08-28 20:39:53 +02:00
SDM Split 19 over-cap LaTeX reports, proving each PDF is unchanged 2026-08-28 19:47:12 +02:00
SDM2 Split 19 over-cap LaTeX reports, proving each PDF is unchanged 2026-08-28 19:47:12 +02:00
SPD Hold the coursework to the same lint bar as the tooling 2026-08-28 19:53:04 +02:00
STUP Run all 33 safe courses; fix what that broke 2026-08-28 18:52:31 +02:00