Address repo-review suggestions

Projects must have a noxfile.py or tox.ini to encourage new contributors.

xfail_strict should be set. You can manually specify if a check should be strict when setting each xfail.

[tool.pytest.ini_options]
xfail_strict = true

-ra should be in addopts = [...] (print summary of all fails/errors).

[tool.pytest.ini_options]
addops = ["-ra", "--strict-config", "--strict-markers"]

Use https://github.com/psf/black-pre-commit-mirror instead of https://github.com/psf/black in .pre-commit-config.yaml

Must have https://github.com/codespell-project/codespell repo in .pre-commit-config.yaml

Must have https://github.com/pre-commit/pygrep-hooks repo in .pre-commit-config.yaml

Must have https://github.com/pre-commit/mirrors-prettier repo in .pre-commit-config.yaml

If --fix is present, --show-fixes must be too.

Should have something like this in .pre-commit-config.yaml:

ci:
  autoupdate_commit_msg: 'chore: update pre-commit hooks'

Must have strict in the mypy config. MyPy is best with strict or nearly strict configuration. If you are happy with the strictness of your settings already, ignore this check or set strict = false explicitly.

[tool.mypy]
strict = true

Must have warn_unreachable = true to pass this check. There are occasionally false positives (often due to platform or Python version static checks), so it's okay to ignore this check. But try it first - it can catch real bugs too.

[tool.mypy]
warn_unreachable = true

Must have "ignore-without-code" in enable_error_code = [...]. This will force all skips in your project to include the error code, which makes them more readable, and avoids skipping something unintended.

[tool.mypy]
enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]

Must have "redundant-expr" in enable_error_code = [...]. This helps catch useless lines of code, like checking the same condition twice.

[tool.mypy]
enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]

Must have "truthy-bool" in enable_error_code = []. This catches mistakes in using a value as truthy if it cannot be falsey.

[tool.mypy]
enable_error_code = ["ignore-without-code", "redundant-expr", "truthy-bool"]

Must select the flake8-bugbear B checks. Recommended:

[tool.ruff]
select = [
  "B",  # flake8-bugbear
]