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Krzysztof kuhy Rudnicki faef20dc45 PORR: zero findings, 18 tests still passing after every refactor 
598 findings to none, and the suite ran through `./run.sh run` after each step
rather than at the end -- 18 passed, 27s, every time.

The shape of this one was different from the other courses. PORR is four
implementations of the same linear algebra (sequential, threads, processes,
dask), so nearly every finding came in groups of four:

- 229 missing annotations. Rather than `object`, which mypy strict rejects on
  every attribute access, each module declares what these actually are:
  `Matrix = np.ndarray | list[list[float]]` and the vector equivalent. The
  backends really are called with both -- comparing them is the point of the
  course.
- 76 names: `A` -> matrix, `Ab` -> augmented, `Ax` -> product, `I` ->
  identity, `dA` -> dask_matrix, and the two CamelCase functions. Renamed
  through `tokenize`, not regex, so no string or comment was touched.
- 121 missing docstrings, one per method name since the names repeat across
  all four backends.
- Seven functions over the argument limit, all taking the same seven or nine
  loose values. They are two frozen dataclasses now, in a new
  richardson_problem.py: `Problem(matrix, rhs, lambda_min, lambda_max)` and
  `Settings(max_iterations, x0, tol)`. `RichardsonMethod.__init__` also took a
  `size` argument it never read.
- threads_indep_old's iteration did "split into chunks, submit, wait" four
  times by hand (C901 11, PLR0915 54). One `_run_chunked` helper.
- tests.py's two bare asserts became explicit raises, per the no-ignores rule.
  `assert False` was also B011: `python -O` deletes it, so the non-convergence
  branch would have silently passed under optimisation.

Real fixes rather than style: np.random -> Generator, `os.path.exists` ->
Path, an `except Exception` around dask narrowed to the errors it actually
raises, and two runnable modules that logged at INFO without ever calling
basicConfig -- caught by scripts/check_refactor_safety.py, which is now doing
the job it was written for.

Repo-wide: 1,781 findings -> 1,183, all of them in the five courses left.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0172dj34FDpao6wsix8ZuCzE
2026-08-28 21:01:13 +02:00
.github/workflows Gate the invariants, fix ECOTE's unrunnable tests, contain build output 2026-08-28 18:43:13 +02:00
.vscode Merge branch 'main' of https://github.com/kuhyx/WUT_Computer_Science 2025-04-21 17:21:13 +02:00
gates Hold the coursework to the same lint bar as the tooling 2026-08-28 19:53:04 +02:00
NotProgramming EARIN: zero findings, verified against byte-identical program output 2026-08-28 20:39:53 +02:00
Programming PORR: zero findings, 18 tests still passing after every refactor 2026-08-28 21:01:13 +02:00
scripts PORR runs in 28s, and three checks so the next pass cannot repeat my mistakes 2026-08-28 20:50:46 +02:00
.binary-allowlist Gate the invariants, fix ECOTE's unrunnable tests, contain build output 2026-08-28 18:43:13 +02:00
.gitignore Run all 33 safe courses; fix what that broke 2026-08-28 18:52:31 +02:00
.pre-commit-config.yaml Gate the invariants, fix ECOTE's unrunnable tests, contain build output 2026-08-28 18:43:13 +02:00
CLAUDE.md ECOTE and ECRYPT_PROJECT: zero findings, tests still green 2026-08-28 20:03:01 +02:00
DOCS-runnability.md Hold the coursework to the same lint bar as the tooling 2026-08-28 19:53:04 +02:00
install.sh Add CI, install.sh and the run.sh harness 2026-08-28 18:26:10 +02:00
pyproject.toml Hold the coursework to the same lint bar as the tooling 2026-08-28 19:53:04 +02:00
README.md Revise README to reflect group project inclusion 2026-02-06 22:23:55 +01:00
run.sh Hold the coursework to the same lint bar as the tooling 2026-08-28 19:53:04 +02:00
TODO-file-length-250.md Declare vendored subtrees and park the data-txt cap decision 2026-08-28 17:31:30 +02:00
TODO-refactor-remaining.md Cap run.sh run at 2G RAM and 2 cores 2026-08-28 19:05:24 +02:00

README.md

WUT_Computer_Science

This repository aims to consolidate every single project I did solo during my Computer Science course on Warsaw University of Technology
It does not include projects I did in groups like:
EARIN
EDABA
ECRYPT
EOPSY

Thanks to some git magic this repo now CONTAINS all the group projects alongside with all proper contributors