def pingtest(self, count=50):
        ''' Ping through a chain of nodes and report the average latency.
        '''
        p = PingCmd(node=self.firstnode, verbose=self.verbose, 
                    addr = self.lastaddr, count=count, interval=0.1).run()
        (latency, mdev) = p
        self.info((latency, mdev) % "latency (ms): %.03f, %.03f")
        return p
dataset/ETHPy150Open coreemu/core/daemon/examples/netns/wlanemanetests.py/Experiment.pingtest/swapped operands of `%`