The unnecessary-literal-within-tuple-call (C409) rule detects the violation here:

tuple([1])

ruff check --fix --unsafe-fixes fails to transform the code correctly, resulting in this, which is not a tuple:

(1)

Instead it should transform the code to:

(1,)

Environment:

% ruff --version
ruff 0.3.2

% cat pyproject.toml
[tool.ruff]
lint.select = [
    "C4"
]