error.py

        # asyncio/events.py in get_event_loop at line 602   

         not self._local._set_called and
            isinstance(threading.current_thread(), threading._MainThread)):
            self.set_event_loop(self.new_event_loop())
        if self._local._loop is None:
            raise RuntimeError('There is no current event loop in thread %r.'
                               % threading.current_thread().name)
        return self._local._loop
    def set_event_loop(self, loop):
        """Set the event loop."""
        self._local._set_called = True