diff --git a/python/gtsam/tests/test_Sim3.py b/python/gtsam/tests/test_Sim3.py
index ff478306e..001321e2c 100644
--- a/python/gtsam/tests/test_Sim3.py
+++ b/python/gtsam/tests/test_Sim3.py
@@ -56,7 +56,6 @@ class TestSim3(GtsamTestCase):
         for wToi, eToi in zip(wToi_list, eToi_list):
             self.gtsamAssertEquals(wToi, wSe.transformFrom(eToi))
 
-
     def test_align_poses_along_straight_line_gauge(self):
         """Test if Align Pose3Pairs method can account for gauge ambiguity.
 
@@ -92,7 +91,6 @@ class TestSim3(GtsamTestCase):
         for wToi, eToi in zip(wToi_list, eToi_list):
             self.gtsamAssertEquals(wToi, wSe.transformFrom(eToi))
 
-
     def test_align_poses_scaled_squares(self):
         """Test if Align Pose3Pairs method can account for gauge ambiguity.