No reachability in the network with remote controller - ping

Question

I am using the code below. Here I first add hc as host and after starting net I ran a simple switch in hc to make it a controller. The problem is there is no reachability in the network i.e. ping is not working. Could anyone please let me know what is causing this behaviour?
def myNetwork():
# Create an instance of Mininet class i.e. the network with default values
net = Mininet()
info( '*** Adding controller\n' )
#c0 = net.addController('c0')
hc = net.addHost( 'hc', ip='127.0.0.1' )
info( '*** Adding switches\n')
s1 = net.addSwitch('s1')
s5 = net.addSwitch('s5')
s2 = net.addSwitch('s2')
info( '*** Adding links\n')
net.addLink(hc, s1)
net.addLink(s1, s5, cls=TCLink)
net.addLink(s5, s2, cls=TCLink)
hosts = list()
# add all remaining hosts to s2
info( '*** Adding hosts and Links\n')
for i in range (1,11):
name = 'h'+str(i)
host = net.addHost(name)
net.addLink( s2, host, cls=TCLink)
hosts.append(host)
info( '*** Starting network\n')
net.start()
hc.cmdPrint('ryu-manager ryu/simple_switch_13.py \
--verbose 1> tmp/controller-ryu.log 2>&1 &')
# Start the Mininet CLI to run commands
CLI(net)
# Stop the network
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
myNetwork()

Answer 1

A lot of parts are missing in the code, and the indentation was not correct.
hc is not needed to create your remote controller. You can use system("START CONTROLLER COMMAND") to run a remote controller like ryu (but I suggest to run the command outside your script). Than use the net.addController function using cls=RemoteController.
def myNetwork():
# Create an instance of Mininet class i.e. the network with default values
net = Mininet(controller=RemoteController)
#info( '*** Adding controller\n' )
c0 = net.addController('c0', cls=RemoteController)
#hc = net.addHost( 'hc', ip='127.0.0.1' )
info( '*** Adding switches\n')
s1 = net.addSwitch('s1')
s5 = net.addSwitch('s5')
s2 = net.addSwitch('s2')
info( '*** Adding links\n')
#net.addLink(hc, s1)
net.addLink(s1, s5, cls=TCLink)
net.addLink(s5, s2, cls=TCLink)
hosts = list()
# add all remaining hosts to s2
info( '*** Adding hosts and Links\n')
for i in range (1,11):
name = 'h'+str(i)
host = net.addHost(name)
net.addLink( s2, host, cls=TCLink)
hosts.append(host)
info( '*** Starting network\n')
net.start()
#hc.cmdPrint('ryu-manager ryu/simple_switch_13.py \
# --verbose 1> tmp/controller-ryu.log 2>&1 &')
# Start the Mininet CLI to run commands
CLI(net)
# Stop the network
net.stop()
if __name__ == '__main__':
from mininet.log import setLogLevel, info
from mininet.net import Mininet
from mininet.link import TCLink
from mininet.cli import CLI
from mininet.node import RemoteController
setLogLevel( 'info' )
myNetwork()