'Place the next TickEvent onto the event queue.'

def stream_next(self):

    try:
        (index, row) = next(self.tick_stream)
    except StopIteration:
        self.continue_backtest = False
        return
    ticker = row['Ticker']
    tev = self._create_event(index, ticker, row)
    self._store_event(tev)
    self.events_queue.put(tev)
