Proper creation of the max and min delay

UDP-client-server.py

@@ -28,8 +28,10 @@ def udp_client_receive(UDP_RECEIVE_IP, UDP_RECEIVE_PORT):
 
     global packet_count_rcvd
     global cumulative_delay
-    global min_delay = 100.
-    global max_delay = 0.
+    global min_delay
+    global max_delay
+    min_delay = 100.
+    max_delay = 0.
     packet_count_rcvd = 0
     cumulative_delay=0.
 
@@ -55,6 +57,7 @@ def udp_client_receive(UDP_RECEIVE_IP, UDP_RECEIVE_PORT):
             max_delay = rt_delay
         if rt_delay < min_delay:
                 min_delay = rt_delay
+        print (max_delay, min_delay)
 
         packet_count_rcvd=packet_count_rcvd+1
         cumulative_delay=cumulative_delay+rt_delay