[Infinite loop] I002 and PLR0402

[dscorbett]

Summary

Ruff fails to converge when missing-required-import (I002) and manual-from-import (PLR0402) are selected and a redundant alias is required. Example:

$ echo 1 | ruff --isolated check - --select I002,PLR0402 --config 'lint.isort.required-imports=["import concurrent.futures as futures"]' --diff

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 `-`, the rule codes I002, along with the `pyproject.toml` settings and executed command, we'd be very appreciative!

@@ -1 +1,51 @@
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
+from concurrent import futures
 1

Would fix 100 errors.

Version

ruff 0.13.0 (a1fdd66 2025-09-10)