Delete topology.py

topology.py

-from mininet.net import Mininet
-from mininet.topo import Topo
-
-class MyTopology(Topo):
-    def build(self):
-        switch = self.addSwitch('s1')
-        host1 = self.addHost('h1')
-        host2 = self.addHost('h2')
-        self.addLink(host1, switch)
-        self.addLink(host2, switch)
-
-if __name__ == '__main__':
-    topo = MyTopology()
-    net = Mininet(topo)
-    net.start()
-    net.pingAll()
-    net.stop()
-