def on_exception(self, name, value):
        self.run_status.set('Exception: %s - %s' % (name, value))
        tkMessageBox.showwarning(message='%s: %s' % (name, value))
The Connection state machine only allows ConnectionState inputs.
dataset/ETHPy150Open pybee/bugjar/bugjar/view.py/MainWindow.on_exception--crossover with--dataset/ETHPy150Open python-hyper/hyper-h2/test/test_state_machines.py/TestConnectionStateMachine.test_state_machine_only_allows_connection_states