C400 and C401 fixes fail when a comma follows the generator #15852
Description
Description
The fixes for unnecessary-generator-list (C400) and unnecessary-generator-set (C401) introduce syntax errors in Ruff 0.9.4 when a parenthesized generator comprehension is followed by a comma and the generator comprehension cannot be simplified to just the iterable.
$ cat >c40.py <<'# EOF'
list((0 for _ in []),)
set((0 for _ in []),)
# EOF
$ ruff --isolated check --preview --select C400 c40.py --unsafe-fixes --diff
error: Fix introduced a syntax error. Reverting all changes.
This indicates a bug in Ruff. If you could open an issue at:
https://github.com/astral-sh/ruff/issues/new?title=%5BFix%20error%5D
...quoting the contents of `c40.py`, the rule codes C400, along with the `pyproject.toml` settings and executed command, we'd be very appreciative!
$ ruff --isolated check --preview --select C401 c40.py --unsafe-fixes --diff
error: Fix introduced a syntax error. Reverting all changes.
This indicates a bug in Ruff. If you could open an issue at:
https://github.com/astral-sh/ruff/issues/new?title=%5BFix%20error%5D
...quoting the contents of `c40.py`, the rule codes C401, along with the `pyproject.toml` settings and executed command, we'd be very appreciative!
The syntactically incorrect output is presumably:
[0 for _ in [],]
{0 for _ in [],}(Is there a way to see this output instead of having Ruff revert the changes?)