diff --git a/tests/test_checkchmjob.py b/tests/test_checkchmjob.py
index a0d902b..5f0e983 100644
--- a/tests/test_checkchmjob.py
+++ b/tests/test_checkchmjob.py
@@ -251,5 +251,6 @@ def test_check_chm_job_all_tasks_complete_with_submit(self):
         finally:
             shutil.rmtree(temp_dir)
 
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_chmjobcreator.py b/tests/test_chmjobcreator.py
index 5c1fddd..7dde1e1 100644
--- a/tests/test_chmjobcreator.py
+++ b/tests/test_chmjobcreator.py
@@ -384,7 +384,7 @@ def test_create_job_three_images_five_tiles_per_job(self):
                              7)
 
             o_img_list = []
-            for x in range(1,8):
+            for x in range(1, 8):
                 o_img = config.get(str(x),
                                    CHMJobCreator.CONFIG_OUTPUT_IMAGE)
                 o_img_list.append(o_img)
diff --git a/tests/test_clusterfactory.py b/tests/test_clusterfactory.py
index befd98d..ff25124 100644
--- a/tests/test_clusterfactory.py
+++ b/tests/test_clusterfactory.py
@@ -46,5 +46,6 @@ def test_get_cluster_by_name(self):
         c = cfac.get_cluster_by_name(CometCluster.CLUSTER)
         self.assertEqual(c.get_cluster(), CometCluster.CLUSTER)
 
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_taskstats.py b/tests/test_taskstats.py
index 15cd3f5..f837ac8 100644
--- a/tests/test_taskstats.py
+++ b/tests/test_taskstats.py
@@ -46,5 +46,6 @@ def test_getter_and_setters(self):
         self.assertEqual(ts.get_max_memory_in_kb(), 300)
         self.assertEqual(ts.get_total_memory_in_kb(), 400)
 
+
 if __name__ == '__main__':
     unittest.main()
diff --git a/tests/test_tasksummaryfactory.py b/tests/test_tasksummaryfactory.py
index fa1a8f0..aab3336 100644
--- a/tests/test_tasksummaryfactory.py
+++ b/tests/test_tasksummaryfactory.py
@@ -493,5 +493,6 @@ def test_get_task_summary(self):
                                            '\nMerge tasks: 0% complete (0 of '
                                            '1 completed)\n')
 
+
 if __name__ == '__main__':
     unittest.main()