Fix a bunch of ruff errors

Author: adamtheturtle

pyproject.toml

@@ -110,6 +110,8 @@ ignore = [
     "D105",
     "D203",
     "D213",
+    # Allow functions to take as many arguments as they want.
+    "PLR0913",
     # Allow 'assert' in tests as it is the standard for pytest.
     # Also, allow 'assert' in other code as it is the standard for Python type hint
     # narrowing - see

tests/test_common.py

@@ -70,7 +70,10 @@ def test_pyfiles_file_no_dice(tmp_path: Path) -> None:
     not_python_file = tmp_path / "example"
     not_python_file.touch()
 
-    with pytest.raises(ValueError):
+    with pytest.raises(
+        expected_exception=ValueError,
+        match=f"{not_python_file} is not a python file or directory",
+    ):
         list(common.pyfiles(root=not_python_file))