def beginning_of_history(self): # (M-<)
        self.history_cursor = 0
        if len(self.history) > 0:
            self.l_buffer = self.history[0]
Move to the first line in the history.
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/python/Lib/site-packages/pyreadline/lineeditor/history.py/LineHistory.beginning_of_history