Function readchar

v2ray_util/util_core/utils.py:340–354

(prompt="")

            print(ColorStr.red(_("input error, please input again")))

def readchar(prompt=""):
    if prompt:
        sys.stdout.write(prompt)
        sys.stdout.flush()
        
    fd = sys.stdin.fileno()
    old_settings = termios.tcgetattr(fd)
    try:
        tty.setraw(sys.stdin.fileno())
        ch = sys.stdin.read(1)
    finally:
        termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)

    print(ch)
    return ch.strip()