human
Write me a the Python program you requested given the following:
Complete the below
def launch():

    ''''Starts the component'
    '''
assistant
#Here is the Python program you requested.
    def start_switch(event):
        log.debug(('Controlling    %s' % (event.connection,)))
        Tutorial(event.connection)
    core.openflow.addListenerByName('ConnectionUp', start_switch)