cli.py 文件源码

def resolve_projector(projector):
    password = None

    # host:port
    if projector is not None and ':' in projector:
        host, port = projector.rsplit(':', 1)
        port = int(port)

    # maybe defined in config
    else:
        appdir = appdirs.user_data_dir('pjlink')
        conf_file = path.join(appdir, 'pjlink.conf')

        try:
            config = ConfigParser({'port': '4352', 'password': ''})
            with open(conf_file, 'r') as f:
                config.readfp(f)

            section = projector
            if projector is None:
                section = 'default'

            host = config.get(section, 'host')
            port = config.getint(section, 'port')
            password = config.get(section, 'password') or None

        except (NoSectionError, IOError):
            if projector is None:
                raise KeyError('No default projector defined in %s' % conf_file)

            # no config file, or no projector defined for this host
            # thus, treat the projector as a hostname w/o port
            host = projector
            port = 4352


    return host, port, password