diff --git a/TestON/drivers/common/cli/dpclidriver.py b/TestON/drivers/common/cli/dpclidriver.py
index 1e7015c..057a3f1 100644
--- a/TestON/drivers/common/cli/dpclidriver.py
+++ b/TestON/drivers/common/cli/dpclidriver.py
@@ -1,147 +1,190 @@
-'''
-Driver for blank dataplane VMs. Created for SDNIP test. 
-'''
-
+"""
+Driver for blank dataplane VMs. Created for SDNIP test.
+"""
 import time
 import pexpect
-import struct, fcntl, os, sys, signal
+import struct
+import fcntl
+import os
+import sys
+import signal
 import sys
 import re
 import json
-sys.path.append("../")
+sys.path.append( "../" )
 from drivers.common.clidriver import CLI
 
-class DPCliDriver(CLI):
 
-    def __init__(self):
-        super(CLI, self).__init__()
+class DPCliDriver( CLI ):
 
-    def connect(self,**connectargs):
+    def __init__( self ):
+        super( CLI, self ).__init__()
+
+    def connect( self, **connectargs ):
         for key in connectargs:
-           vars(self)[key] = connectargs[key]
+            vars( self )[ key ] = connectargs[ key ]
 
-
-        self.name = self.options['name']
-        self.handle = super(DPCliDriver,self).connect(user_name = self.user_name, ip_address = self.ip_address,port = self.port, pwd = self.pwd)
+        self.name = self.options[ 'name' ]
+        self.handle = super( DPCliDriver, self ).connect( user_name=self.user_name,
+         		ip_address=self.ip_address,
+         		port=self.port,
+         		pwd=self.pwd )
 
         if self.handle:
             return self.handle
-        else :
-            main.log.info("NO HANDLE")
+        else:
+            main.log.info( "NO HANDLE" )
             return main.FALSE
 
-    def create_interfaces(self, net, number, start):
-        '''
+    def create_interfaces( self, net, number, start ):
+        """
         Creates a number,specified by 'number,' of subinterfaces on eth0. Ip addresses start at 'net'.'start'.1.1 with a 24 bit netmask. Addresses increment sequentially in the third quad,
         therefore all interfaces are in different subnets on the same machine. When the third quad reaches 255, it is reset to 1 and the second quad is incremented.
         Every single ip address is placed in a file in /tmp titled 'ip_table{net}.txt'
         The file is used by 'pingall_interfaces()' as a fping argument
         This method returns true if all interfaces are created without a hitch, and false if a single interface has issues
-        '''
+        """
+        self.handle.sendline( "" )
+        self.handle.expect( "\$" )
 
-        self.handle.sendline("")
-        self.handle.expect("\$")
+        self.handle.sendline( "rm /tmp/local_ip.txt" )
+        self.handle.expect( "\$" )
+        self.handle.sendline( "touch /tmp/local_ip.txt" )
+        self.handle.expect( "\$" )
 
-        self.handle.sendline("rm /tmp/local_ip.txt")
-        self.handle.expect("\$")
-        self.handle.sendline("touch /tmp/local_ip.txt")
-        self.handle.expect("\$")
-
-        main.log.info("Creating interfaces")
+        main.log.info( "Creating interfaces" )
         k = 0
         intf = 0
         while number != 0:
-            k= k + 1
+            k = k + 1
             if k == 256:
                 k = 1
                 start = start + 1
             number = number - 1
             intf = intf + 1
-            ip = net+"."+str(start)+"."+str(k)+".1"
-            self.handle.sendline("sudo ifconfig eth0:"+str(intf)+" "+ip+" netmask 255.255.255.0")
+            ip = net + "." + str( start ) + "." + str( k ) + ".1"
+            self.handle.sendline(
+                "sudo ifconfig eth0:" + str(
+                    intf ) + " " + ip + " netmask 255.255.255.0" )
 
-            i = self.handle.expect(["\$","password",pexpect.TIMEOUT,pexpect.EOF], timeout = 120)
-                if i == 0:
-                    self.handle.sendline("echo "+str(ip)+" >> /tmp/local_ip.txt")
-                    self.handle.expect("\$")
-                elif i == 1:
-                    main.log.info("Sending sudo password")
-                    self.handle.sendline(self.pwd) 
-                    self.handle.expect("\$")
-                else:
-                    main.log.error("INTERFACES NOT CREATED")
-                    return main.FALSE
+            i = self.handle.expect( [
+				    "\$",
+                                    "password",
+                                    pexpect.TIMEOUT,
+                                    pexpect.EOF ],
+                		    timeout=120 )
 
+            if i == 0:
+                self.handle.sendline(
+                    "echo " + str( ip ) + " >> /tmp/local_ip.txt" )
+                self.handle.expect( "\$" )
+            elif i == 1:
+                main.log.info( "Sending sudo password" )
+                self.handle.sendline( self.pwd )
+                self.handle.expect( "\$" )
+            else:
+                main.log.error( "INTERFACES NOT CREATED" )
+                return main.FALSE
 
-    def pingall_interfaces(self, netsrc, netstrt, netdst, destlogin, destip):
-        '''
-        Copies the /tmp/ip_table{net}.txt file from the machine you wish to ping, then runs fping with a source address of {netsrc}.{netstrt}.1.1 on the copied file.
+    def pingall_interfaces( self, netsrc, netstrt, netdst, destlogin, destip ):
+        """
+        Copies the /tmp/ip_table{ net }.txt file from the machine you wish to ping, then runs fping with a source address of { netsrc }.{ netstrt }.1.1 on the copied file.
         Check every single response for reachable or unreachable. If all are reachable, function returns true. If a SINGLE host is unreachable, then the function stops and returns false
         If fping is not installed, this function will install fping then run the same command
-        '''
+        """
+        self.handle.sendline( "" )
+        self.handle.expect( "\$" )
 
-        self.handle.sendline("")
-        self.handle.expect("\$")
-      
-        self.handle.sendline("scp "+str(destlogin)+"@"+str(destip)+":/tmp/local_ip.txt /tmp/ip_table"+str(net)+".txt")
-        i = self.handle.expect(["100%","password",pexpect.TIMEOUT], timeout = 30)
+        self.handle.sendline( "scp " + str( destlogin ) + "@" + 
+			      str( destip ) + ":/tmp/local_ip.txt /tmp/ip_table" +
+			      str( net ) + ".txt" )
+        
+	i = self.handle.expect( [
+				"100%",
+                                "password",
+                                pexpect.TIMEOUT ],
+		                timeout=30 )
+
         if i == 0:
-            main.log.info("Copied ping file successfully")
+            main.log.info( "Copied ping file successfully" )
         elif i == 1:
-            self.handle.sendline(self.pwd)
-            self.handle.expect("100%")
-            main.log.info("Copied ping file successfully")
+            self.handle.sendline( self.pwd )
+            self.handle.expect( "100%" )
+            main.log.info( "Copied ping file successfully" )
         elif i == 2:
-            main.log.error("COULD NOT COPY PING FILE FROM "+str(destip))
+            main.log.error( "COULD NOT COPY PING FILE FROM " + str( destip ) )
             result = main.FALSE
             return result
-       
-        self.handle.sendline("")
-        self.handle.expect("\$")
 
-        main.log.info("Pinging interfaces on the "+str(netdst)+" network from "+str(netsrc)+"."+str(netstrt)+".1.1") 
-        self.handle.sendline("sudo fping -S "+str(netsrc)+"."+str(netstrt)+".1.1 -f /tmp/ip_table"+str(netdst)+".txt")
+        self.handle.sendline( "" )
+        self.handle.expect( "\$" )
+
+        main.log.info( "Pinging interfaces on the " + str( netdst ) +
+		       " network from " + str( netsrc ) + "." + 
+		       str( netstrt ) + ".1.1" )
+        self.handle.sendline( "sudo fping -S " + str( netsrc ) + "." +
+			      str( netstrt ) + ".1.1 -f /tmp/ip_table" + 
+			      str( netdst ) + ".txt" )
         while 1:
-            i = self.handle.expect(["reachable","unreachable","\$","password",pexpect.TIMEOUT,"not installed"], timeout=45)
+            i = self.handle.expect( [
+				    "reachable",
+                                    "unreachable",
+                                    "\$",
+                                    "password",
+                                    pexpect.TIMEOUT,
+                                    "not installed" ],
+				    timeout=45 )
             if i == 0:
                 result = main.TRUE
             elif i == 1:
-                main.log.error("An interface was unreachable")
+                main.log.error( "An interface was unreachable" )
                 result = main.FALSE
                 return result
             elif i == 2:
-                main.log.info("All interfaces reachable")
+                main.log.info( "All interfaces reachable" )
                 return result
             elif i == 3:
-                self.handle.sendline(self.pwd)
+                self.handle.sendline( self.pwd )
             elif i == 4:
-                main.log.error("Unable to fping")
+                main.log.error( "Unable to fping" )
                 result = main.FALSE
                 return result
             elif i == 5:
-                main.log.info("fping not installed, installing fping")
-                self.handle.sendline("sudo apt-get install fping")
-                i = self.handle.expect(["password","\$",pexpect.TIMEOUT], timeout = 60)
+                main.log.info( "fping not installed, installing fping" )
+                self.handle.sendline( "sudo apt-get install fping" )
+                i = self.handle.expect(
+                    [ "password",
+                                      "\$",
+                                      pexpect.TIMEOUT ],
+                    timeout=60 )
                 if i == 0:
-                    self.handle.sendline(self.pwd)
-                    self.handle.expect("\$", timeout = 30)
-                    main.log.info("fping installed, now pinging interfaces")
-                    self.handle.sendline("sudo fping -S "+str(netsrc)+"."+str(netstrt)+".1.1 -f /tmp/ip_table"+str(netdst)+".txt")
+                    self.handle.sendline( self.pwd )
+                    self.handle.expect( "\$", timeout=30 )
+                    main.log.info( "fping installed, now pinging interfaces" )
+                    self.handle.sendline(
+                        "sudo fping -S " + str(
+                            netsrc ) + "." + str(
+                                netstrt ) + ".1.1 -f /tmp/ip_table" + str(
+                                    netdst ) + ".txt" )
                 elif i == 1:
-                    main.log.info("fping installed, now pinging interfaces")
-                    self.handle.sendline("sudo fping -S "+str(netsrc)+"."+str(netstrt)+".1.1 -f /tmp/ip_table"+str(netdst)+".txt")
+                    main.log.info( "fping installed, now pinging interfaces" )
+                    self.handle.sendline(
+                        "sudo fping -S " + str(
+                            netsrc ) + "." + str(
+                                netstrt ) + ".1.1 -f /tmp/ip_table" + str(
+                                    netdst ) + ".txt" )
                 elif i == 2:
-                    main.log.error("Could not install fping")
+                    main.log.error( "Could not install fping" )
                     result = main.FALSE
                     return result
 
-    def disconnect(self):
+    def disconnect( self ):
         response = ''
         try:
-            self.handle.sendline("exit")
-            self.handle.expect("closed")
+            self.handle.sendline( "exit" )
+            self.handle.expect( "closed" )
         except:
-            main.log.error("Connection failed to the host")
+            main.log.error( "Connection failed to the host" )
             response = main.FALSE
         return response