import signal
import traceback


class SignalHandler:

    def __init__(self):

        # register signal handlers
        signal.signal(signal.SIGINT, self.exit_gracefully)
        signal.signal(signal.SIGTERM, self.exit_gracefully)



    def exit_gracefully(self, signum, frame):
        
        print('captured signal %d' % signum)
        traceback.print_stack(frame)
        #print signal code

        raise(SystemExit)