for line in output.split("\n"):
        if url is not None:
            continue
        idx = line.find("address:")
        if idx != -1:
            url = line[idx+9:]
            if url.startswith('*:'):
                url = "localhost"+url[1:]
                url = socket.getfqdn()+url[1:]
    if url is None:
        print >>sys.stderr, "ERROR parsing 'info spice' output:",output
        return None
    return "spice://" + url.rstrip('\r')