def cursorDown(self, n=1):
        assert n >= 1
        self.cursorPos.y = min(self.cursorPos.y + n, self.termSize.y - 1)
        self.write('\x1b[%dB' % (n,))
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/conch/insults/insults.py/ServerProtocol.cursorDown/original