[Infinite loop] Parser error with I002 (required imports) and F401 (unused import) #12458
Description
I ran into a fun error:
PS> ruff -V
ruff 0.5.4
PS> ruff check --isolated --select I002,F401 --fix --unsafe-fixes --config "lint.isort.required-imports=['from path import Path']" bug.py
error: Failed to converge after 100 iterations.
This indicates a bug in Ruff. If you could open an issue at:
https://github.com/astral-sh/ruff/issues/new?title=%5BInfinite%20loop%5D
...quoting the contents of `bug.py`, the rule codes I002, along with the `pyproject.toml` settings and executed command, we'd be very appreciative!
bug.py:1:1: I002 Missing required import: `from path import Path`
Found 101 errors (100 fixed, 1 remaining).
[*] 1 fixable with the --fix option.
PS> type bug.py
_ = 'Path'
The content of bug.py is "_ = 'Path'\n". If you remove the assignment, all works (one imagines as the string is parsed as a docstring).
_ = 'Path'The error exists going back at least as far as 0.2.2 (0.2.1 gives errors with mixing --isolated and --config).
I can't see any similar issues, but if I've missed one please close this!
A