def crash():
        """
        Stop the main loop *immediately*, without firing any system events.

        This is named as it is because this is an extremely "rude" thing to do;
        it is possible to lose data and put your system in an inconsistent
        state by calling this.  However, it is necessary, as sometimes a system
        can become wedged in a pre-shutdown call.
        """

        Stop the main loop *immediately*, without firing any system events.

        This is named as it is because this is an extremely "rude" thing to do;
        it is possible to lose data and put your system in an inconsistent
        state by calling this.  However, it is necessary, as sometimes a system
        can become wedged in a pre-shutdown call.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/interfaces.py