kbd.py 文件源码

def __init__(self, infile):
        if not infile.isatty():
            raise NotTTYException()
        self.file = infile

        # prepare for getch
        self.save_attr = tty.tcgetattr(self.file)
        newattr = self.save_attr[:]
        newattr[3] &= ~tty.ECHO & ~tty.ICANON
        tty.tcsetattr(self.file, tty.TCSANOW, newattr)