fix flake8

Author: tomkralidis

tests/run_tests.py

@@ -641,6 +641,7 @@ def test_migrate(self):
             self.assertTrue('dates' in mcf_dict['metadata'])
             self.assertTrue('creation' in mcf_dict['metadata']['dates'])
 
+
 def get_abspath(filepath):
     """helper function absolute file access"""