def ping_client(self):
        try:
            pingelem = self.E.ping(xmlns='urn:xmpp:ping')
            return self.iq('get', self.ping_result, pingelem)
        except Exception as e:
            Log.debug((self.authJID, e) % "ping client %r failed: %r")
            Log.debug(traceback.format_exc())
            return False
dataset/ETHPy150Open HenryHu/pybbs/xmppserver.py/XMPPServer.ping_client/swapped operands of `%`