[jonathansick]

Summary

The weekly Periodic CI test job has failed on its last two runs (2026-11-02 and 2026-11-09) for two independent reasons, both caused by upstream releases picked up by make update-deps:

• test session — pytest 9.2.0 breaks --dist=loadgroup in pytest-xdist 3.8.0. pytest 9.2.0 (released 2026-10-27) keeps a node's ID in a structured Node._id and no longer reads the private Item._nodeid attribute. pytest-xdist 3.8.0 implements loadgroup by rewriting that attribute, so the xdist_group mark is now silently ignored and tests are scheduled as with --dist=load. The paired pins in tests/session_lifespan_test.py rely on running on one worker in file order; split across workers, test_lifespan_engine_is_shared and test_arq_queue_is_rebuilt_per_test fail with IndexError: list index out of range. This is fixed on pytest-xdist's master branch (--dist=loadgroup silently stops grouping on pytest main: the nodeid mutation no longer takes effect pytest-dev/pytest-xdist#1386) but there is no release newer than 3.8.0 yet.
• lint session — ruff 0.17 changes isort wrapping. ruff 0.17.0 no longer counts a trailing pragma comment toward the line length when I001 decides whether an import fits on one line, so five imports in tests/conftest.py that were wrapped only because of their # noqa: E402 comment are flagged (and auto-fixed).

Changes

• Add a temporary pytest<9.2 cap to the dev dependency group, with a comment pointing at the upstream issue. This is an upper-bound pin rather than a code change because the tests and the nox --dist loadgroup setup are correct; the incompatibility is entirely between pytest and the released pytest-xdist. The cap should be removed once a pytest-xdist release newer than 3.8.0 is available.
• Update dependencies with make update (uv.lock, ruff pre-commit hook 0.16.10 → 0.17.4, uv 0.13.4 → 0.13.7).
• Apply ruff 0.17's import re-sort to tests/conftest.py.

No changelog fragment: this only touches development dependencies, test code, and CI pins, in line with previous "Update dependencies" changes.

Validation

• Reproduced both failures locally on main after make update (same two IndexError test failures; same I001 lint failure).
• Confirmed the trigger with a minimal xdist_group test under pytest-xdist 3.8.0: grouped onto one worker with pytest 9.1.1, spread across workers with pytest 9.2.0. Confirmed ruff 0.16.10 accepts the old conftest.py and 0.17.0 rejects it.
• On this branch: nox -s lint typing test passes (4283 tests), as do client_test and deploy_worker_test.