keyboard.py 文件源码

def _getch(self):
        '''Getch a character from stdin'''
        fd = sys.stdin.fileno()
        old_settings = termios.tcgetattr(fd)
        ch = None
        while self._state:
            try:
                tty.setraw(fd)
                ch = sys.stdin.read(1)
            finally:
                termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
            if ch:
                if ch == 'q':
                    self._state = False
                    self.manageEvent('exit')
                else:
                    self.manageEvent(ch)