Gets a single key from stdin

def get_key(raw=False):
    """ Gets a single key from stdin
    """
    while True:
        try:
            if kbhit():
                char = getch()
                ordinal = ord(char)
                if ordinal in (0, 224):
                    extention = ord(getch())
                    scan_code = ordinal + extention * 256
                    result = scan_codes.get(scan_code)
                    break
                else:
                    result = char.decode()
                    break
        except KeyboardInterrupt:
            return "ctrl-c"
    return result if raw else keys_flipped.get(result, result)