style: some of the suggestions from flake8
diff --git a/test/run_all_tests.py b/test/run_all_tests.py
index 39114af..6836d59 100644
--- a/test/run_all_tests.py
+++ b/test/run_all_tests.py
@@ -44,7 +44,7 @@
 verbosity = 1
 if '-v' in sys.argv[1:]:
     verbosity = 2
-    print('-'*78)
+    print('-' * 78)
 
 # run the collected tests
 testRunner = unittest.TextTestRunner(verbosity=verbosity)