Use super.

neo/master/handlers/secondary.py

@@ -51,7 +51,7 @@ class PrimaryHandler(MasterHandler):
         # connection successfull, set it as running
         node.setRunning()
         conn.ask(Packets.AskPrimary())
-        MasterHandler.connectionCompleted(self, conn)
+        super(PrimaryHandler, self).connectionCompleted(conn)
 
     def reelectPrimary(self, conn):
         raise ElectionFailure, 'reelection requested'

neo/neoctl/handler.py

@@ -24,7 +24,7 @@ class CommandEventHandler(EventHandler):
     def connectionCompleted(self, conn):
         # connected to admin node
         self.app.connected = True
-        EventHandler.connectionCompleted(self, conn)
+        super(CommandEventHandler, self).connectionCompleted(conn)
 
     def __disconnected(self):
         app = self.app