diff --git a/tests/basic/test_linter.py b/tests/basic/test_linter.py
index 27eeeac11..7456d9c70 100644
--- a/tests/basic/test_linter.py
+++ b/tests/basic/test_linter.py
@@ -37,7 +37,9 @@ class TestLinter(unittest.TestCase):
 
     def test_get_rel_fname(self):
         self.assertEqual(self.linter.get_rel_fname("/test/root/file.py"), "file.py")
-        self.assertEqual(self.linter.get_rel_fname("/other/path/file.py"), "../../other/path/file.py")
+        self.assertEqual(
+            self.linter.get_rel_fname("/other/path/file.py"), "../../other/path/file.py"
+        )
 
     @patch("subprocess.Popen")
     def test_run_cmd(self, mock_popen):