diff -r af969080e7e6 -r 37726f66ff82 cubicweb/hooks/test/unittest_security.py
--- a/cubicweb/hooks/test/unittest_security.py	Fri Jan 20 10:31:04 2017 +0100
+++ b/cubicweb/hooks/test/unittest_security.py	Fri Jan 20 14:32:34 2017 +0100
@@ -51,6 +51,7 @@
                     cnx.commit()
                     self.assertEqual(email.sender[0].eid, self.add_eid)
 
+
 if __name__ == '__main__':
     from logilab.common.testlib import unittest_main
     unittest_main()