diff --git a/TestON/drivers/common/cli/emulator/flowvisordriver.py b/TestON/drivers/common/cli/emulator/flowvisordriver.py
index 66946bd..d0e6ea5 100644
--- a/TestON/drivers/common/cli/emulator/flowvisordriver.py
+++ b/TestON/drivers/common/cli/emulator/flowvisordriver.py
@@ -1,14 +1,14 @@
 #!/usr/bin/env python
-'''
+"""
 Created on 26-Mar-2013
 
-@author: Anil Kumar (anilkumar.s@paxterrasolutions.com)
+author:: Anil Kumar ( anilkumar.s@paxterrasolutions.com )
 
 
     TestON is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
+    ( at your option ) any later version.
 
     TestON is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -16,12 +16,11 @@
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with TestON.  If not, see <http://www.gnu.org/licenses/>.		
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 
 
 FlowVisorDriver is the basic driver which will handle the Mininet functions
-'''
-
+"""
 import pexpect
 import struct
 import fcntl
@@ -30,150 +29,197 @@
 import re
 import sys
 import core.teston
-sys.path.append("../")
+sys.path.append( "../" )
 from drivers.common.cli.emulatordriver import Emulator
 from drivers.common.clidriver import CLI
 
-class FlowVisorDriver(Emulator):
-    '''
-        FlowVisorDriver is the basic driver which will handle the Mininet functions
-    '''
-    def __init__(self):
-        super(Emulator, self).__init__()
-        self.handle = self
-        self.wrapped = sys.modules[__name__]
 
-    def connect(self, **connectargs):
-        #,user_name, ip_address, pwd,options):
-        # Here the main is the TestON instance after creating all the log handles.
+class FlowVisorDriver( Emulator ):
+
+    """
+        FlowVisorDriver is the basic driver which will handle the Mininet functions
+    """
+    def __init__( self ):
+        super( Emulator, self ).__init__()
+        self.handle = self
+        self.wrapped = sys.modules[ __name__ ]
+
+    def connect( self, **connectargs ):
+        #,user_name, ip_address, pwd,options ):
+        # Here the main is the TestON instance after creating all the log
+        # handles.
         for key in connectargs:
-            vars(self)[key] = connectargs[key]       
-        
-        self.name = self.options['name']
-        self.handle = super(FlowVisorDriver, self).connect(user_name = self.user_name, ip_address = self.ip_address,port = None, pwd = self.pwd)
-        
+            vars( self )[ key ] = connectargs[ key ]
+
+        self.name = self.options[ 'name' ]
+        self.handle = super(
+            FlowVisorDriver,
+            self ).connect(
+            user_name=self.user_name,
+            ip_address=self.ip_address,
+            port=None,
+            pwd=self.pwd )
+
         self.ssh_handle = self.handle
-        
-        # Copying the readme file to process the 
-        if self.handle :
-            self.execute(cmd='\r',prompt='\$',timeout=10)
-            self.options['path'] = '/home/openflow/flowvisor/scripts/'
+
+        # Copying the readme file to process the
+        if self.handle:
+            self.execute( cmd='\r', prompt='\$', timeout=10 )
+            self.options[ 'path' ] = '/home/openflow/flowvisor/scripts/'
             #self.handle.logfile = sys.stdout
-            self.execute(cmd='cd '+self.options['path'],prompt='\$',timeout=10)
-            main.log.info("Starting FlowVisor ")
-            
-            response = self.execute(cmd='./flowvisor.sh &',prompt='---\sSetting\slogging\slevel\sto\sNOTE',timeout=10)
-           
+            self.execute(
+                cmd='cd ' +
+                self.options[ 'path' ],
+                prompt='\$',
+                timeout=10 )
+            main.log.info( "Starting FlowVisor " )
+
+            response = self.execute(
+                cmd='./flowvisor.sh &',
+                prompt='---\sSetting\slogging\slevel\sto\sNOTE',
+                timeout=10 )
+
             pattern = '\d+'
-            
-            process_id_search = re.search("\[\d+\]\s+(\d+)", str(response))
+
+            process_id_search = re.search( "\[\d+\]\s+(\d+)", str( response ) )
             self.fvprocess_id = "None"
             if process_id_search:
-                self.fvprocess_id = process_id_search.group(1)
-            
-            utilities.assert_matches(expect=pattern,actual=response,onpass="FlowVisor Started Successfully : Proceess Id :"+self.fvprocess_id,onfail="Failed to start FlowVisor")
-            main.log.info(response)
+                self.fvprocess_id = process_id_search.group( 1 )
+
+            utilities.assert_matches(
+                expect=pattern,
+                actual=response,
+                onpass="FlowVisor Started Successfully : Proceess Id :" +
+                self.fvprocess_id,
+                onfail="Failed to start FlowVisor" )
+            main.log.info( response )
             #import time
-            #time.sleep(10)
-            #response = self.execute(cmd='./start_visualizer.sh & \r',prompt='\$',timeout=10)
-            
+            # time.sleep( 10 )
+            #response = self.execute( cmd='./start_visualizer.sh & \r',prompt='\$',timeout=10 )
+
             return main.TRUE
-        else :
-            main.log.error("Connection failed to the host "+self.user_name+"@"+self.ip_address) 
-            main.log.error("Failed to connect to the FlowVisor")
+        else:
+            main.log.error(
+                "Connection failed to the host " +
+                self.user_name +
+                "@" +
+                self.ip_address )
+            main.log.error( "Failed to connect to the FlowVisor" )
             return main.FALSE
-    def removeFlowSpace(self,id):
+
+    def removeFlowSpace( self, id ):
         if id == "all":
             flow_space = self.listFlowSpace()
-            flow_ids = re.findall("\,id=\[(\d+)\]", flow_space)
-            for id in flow_ids :
-                self.removeFlowSpace(id)
-        else :
-            self.execute(cmd="clear",prompt="\$",timeout=10)
-            self.execute(cmd="./fvctl.sh removeFlowSpace "+id,prompt="passwd:",timeout=10)
-            self.execute(cmd="\n",prompt="\$",timeout=10)
-            main.log.info("Removed flowSpace which is having id :"+id)
-            
+            flow_ids = re.findall( "\,id=\[(\d+)\]", flow_space )
+            for id in flow_ids:
+                self.removeFlowSpace( id )
+        else:
+            self.execute( cmd="clear", prompt="\$", timeout=10 )
+            self.execute(
+                cmd="./fvctl.sh removeFlowSpace " +
+                id,
+                prompt="passwd:",
+                timeout=10 )
+            self.execute( cmd="\n", prompt="\$", timeout=10 )
+            main.log.info( "Removed flowSpace which is having id :" + id )
+
         return main.TRUE
-        
-    def addFlowSpace(self,**flowspace_args):
+
+    def addFlowSpace( self, **flowspace_args ):
         temp_string = None
         for key in flowspace_args:
-            if temp_string :
-                temp_string = temp_string +','+ key+'='+flowspace_args[key]
-            else :
+            if temp_string:
+                temp_string = temp_string + ',' + \
+                    key + '=' + flowspace_args[ key ]
+            else:
                 temp_string = ''
-                temp_string = temp_string + key+'='+flowspace_args[key]
-        
-        src_search = re.search('dl_src', temp_string)
-        if src_search :
-            flowspace = "any 100 dl_type=0x806,nw_proto=6,"+temp_string +" Slice:SSH=4"
-        else :
-            flowspace = "any 100 dl_type=0x800,nw_proto=6,"+temp_string +" Slice:SSH=4"
-            
-        '''
+                temp_string = temp_string + key + '=' + flowspace_args[ key ]
+
+        src_search = re.search( 'dl_src', temp_string )
+        if src_search:
+            flowspace = "any 100 dl_type=0x806,nw_proto=6," + \
+                temp_string + " Slice:SSH=4"
+        else:
+            flowspace = "any 100 dl_type=0x800,nw_proto=6," + \
+                temp_string + " Slice:SSH=4"
+
+        """
         try :
             if self.dl_src and self.nw_dst:
                 flowspace = "any 100 dl_type=0x806,dl_src="+self.dl_src+",nw_dst="+self.nw_dst+" Slice:"+self.Slice+"=4"
         except :
             try :
                 if self.nw_src and self.tp_dst:
-                    flowspace = "any 100 dl_type=0x800,nw_proto=6,nw_src="+self.nw_src+",tp_dst="+self.tp_dst+" Slice:"+self.Slice+"=4"         
+                    flowspace = "any 100 dl_type=0x800,nw_proto=6,nw_src="+self.nw_src+",tp_dst="+self.tp_dst+" Slice:"+self.Slice+"=4"
             except :
                 try :
                     if self.nw_src and self.tp_src:
                         flowspace = "any 100 dl_type=0x800,nw_proto=6,nw_src="+self.nw_src+",tp_src="+self.tp_dst+" Slice:"+self.Slice+"=4"
                 except :
-                    main.log.error("Please specify flowspace properly")
-        '''    
-
-        #self.execute(cmd="clear",prompt="\$",timeout=10)
-        self.execute(cmd="./fvctl.sh addFlowSpace "+flowspace,prompt="passwd:",timeout=10)
-        self.execute(cmd="\n",prompt="\$",timeout=10)
-        sucess_match = re.search("success\:\s+(\d+)", main.last_response)
-        if sucess_match :
-            main.log.info("Added flow Space and id is "+sucess_match.group(1))
+                    main.log.error( "Please specify flowspace properly" )
+        """
+        # self.execute( cmd="clear",prompt="\$",timeout=10 )
+        self.execute(
+            cmd="./fvctl.sh addFlowSpace " +
+            flowspace,
+            prompt="passwd:",
+            timeout=10 )
+        self.execute( cmd="\n", prompt="\$", timeout=10 )
+        sucess_match = re.search( "success\:\s+(\d+)", main.last_response )
+        if sucess_match:
+            main.log.info(
+                "Added flow Space and id is " +
+                sucess_match.group( 1 ) )
             return main.TRUE
-        else :
+        else:
             return main.FALSE
-        
-    
-    
-    def listFlowSpace(self):
-        self.execute(cmd="clear",prompt="\$",timeout=10)
-        self.execute(cmd="./fvctl.sh listFlowSpace ",prompt="passwd:",timeout=10)
-        self.execute(cmd="\n",prompt="\$",timeout=10)
+
+    def listFlowSpace( self ):
+        self.execute( cmd="clear", prompt="\$", timeout=10 )
+        self.execute(
+            cmd="./fvctl.sh listFlowSpace ",
+            prompt="passwd:",
+            timeout=10 )
+        self.execute( cmd="\n", prompt="\$", timeout=10 )
         flow_space = main.last_response
-        flow_space = self.remove_contol_chars( flow_space)
-        flow_space = re.sub("rule\s(\d+)\:", "\nrule "+r'\1'+":",flow_space)
-        main.log.info(flow_space)
-        
+        flow_space = self.remove_contol_chars( flow_space )
+        flow_space = re.sub(
+            "rule\s(\d+)\:",
+            "\nrule " +
+            r'\1' +
+            ":",
+            flow_space )
+        main.log.info( flow_space )
+
         return flow_space
-        
-    def listDevices(self):
-        #self.execute(cmd="clear",prompt="\$",timeout=10)
-        #self.execute(cmd="./fvctl.sh listDevices ",prompt="passwd:",timeout=10)
-        #self.execute(cmd="\n",prompt="\$",timeout=10)
+
+    def listDevices( self ):
+        # self.execute( cmd="clear",prompt="\$",timeout=10 )
+        #self.execute( cmd="./fvctl.sh listDevices ",prompt="passwd:",timeout=10 )
+        # self.execute( cmd="\n",prompt="\$",timeout=10 )
         devices_list = ''
-        last_response = re.findall("(Device\s\d+\:\s((\d|[a-z])(\d|[a-z])\:)+(\d|[a-z])(\d|[a-z]))", main.last_response)
-        
-        for resp in last_response :
-            devices_match = re.search("(Device\s\d+\:\s((\d|[a-z])(\d|[a-z])\:)+(\d|[a-z])(\d|[a-z]))", str(resp))
+        last_response = re.findall(
+            "(Device\s\d+\:\s((\d|[a-z])(\d|[a-z])\:)+(\d|[a-z])(\d|[a-z]))",
+            main.last_response )
+
+        for resp in last_response:
+            devices_match = re.search(
+                "(Device\s\d+\:\s((\d|[a-z])(\d|[a-z])\:)+(\d|[a-z])(\d|[a-z]))",
+                str( resp ) )
             if devices_match:
-                devices_list = devices_list+devices_match.group(0)+"\n"
+                devices_list = devices_list + devices_match.group( 0 ) + "\n"
         devices_list = "Device 0: 00:00:00:00:00:00:00:02 \n Device 1: 00:00:00:00:00:00:00:03"
-        main.log.info("List of Devices \n"+devices_list)
-        
+        main.log.info( "List of Devices \n" + devices_list )
+
         return main.TRUE
-    
- 
-    def disconnect(self):
-        
+
+    def disconnect( self ):
+
         response = ''
-        main.log.info("Stopping the FlowVisor")
+        main.log.info( "Stopping the FlowVisor" )
         if self.handle:
-            self.handle.sendline("kill -9 "+str(self.fvprocess_id))
-        else :
-            main.log.error("Connection failed to the host")
+            self.handle.sendline( "kill -9 " + str( self.fvprocess_id ) )
+        else:
+            main.log.error( "Connection failed to the host" )
             response = main.FALSE
-        return response 
+        return response
diff --git a/TestON/drivers/common/cli/remotetestbeddriver.py b/TestON/drivers/common/cli/remotetestbeddriver.py
index 79fbf1c..eaeacd9 100644
--- a/TestON/drivers/common/cli/remotetestbeddriver.py
+++ b/TestON/drivers/common/cli/remotetestbeddriver.py
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
-'''
-Created on 26-Oct-2012 
+"""
+Created on 26-Oct-2012
 
-@author: Anil Kumar (anilkumar.s@paxterrasolutions.com)      
+author:: Anil Kumar ( anilkumar.s@paxterrasolutions.com )
 
     TestON is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
+    ( at your option ) any later version.
 
     TestON is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -15,44 +15,66 @@
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with TestON.  If not, see <http://www.gnu.org/licenses/>.		
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 
 
-''' 
+"""
 import time
 import pexpect
-import struct, fcntl, os, sys, signal
+import struct
+import fcntl
+import os
 import sys
-sys.path.append("../")
+import signal
+import sys
+sys.path.append( "../" )
 from drivers.common.clidriver import CLI
 
-class RemoteTestBedDriver(CLI):
-    # The common functions for emulator included in RemoteTestBedDriver
-    def __init__(self):
-        super(CLI, self).__init__()
-        
-    def connect(self,**connectargs):
-        for key in connectargs:
-           vars(self)['vm_'+key] = connectargs[key]
 
-        remote_user_name = main.componentDictionary[self.name]['remote_user_name']
-        remote_ip_address = main.componentDictionary[self.name]['remote_ip_address']
-        remote_port = main.componentDictionary[self.name]['remote_port'] 
-        remote_pwd = main.componentDictionary[self.name]['remote_pwd']
-        
-        self.handle = super(RemoteTestBedDriver,self).connect(user_name = remote_user_name, 
-                                                              ip_address = remote_ip_address,
-                                                              port = remote_port, pwd = remote_pwd)
-        
+class RemoteTestBedDriver( CLI ):
+    # The common functions for emulator included in RemoteTestBedDriver
+
+    def __init__( self ):
+        super( CLI, self ).__init__()
+
+    def connect( self, **connectargs ):
+        for key in connectargs:
+            vars( self )[ 'vm_' + key ] = connectargs[ key ]
+
+        remote_user_name = main.componentDictionary[
+            self.name ][ 'remote_user_name' ]
+        remote_ip_address = main.componentDictionary[
+            self.name ][ 'remote_ip_address' ]
+        remote_port = main.componentDictionary[ self.name ][ 'remote_port' ]
+        remote_pwd = main.componentDictionary[ self.name ][ 'remote_pwd' ]
+
+        self.handle = super(
+            RemoteTestBedDriver,
+            self ).connect(
+            user_name=remote_user_name,
+            ip_address=remote_ip_address,
+            port=remote_port,
+            pwd=remote_pwd )
+
         if self.handle:
-            self.execute(cmd= "\n",prompt= "\$|>|#",timeout= 10)
-            self.execute(cmd= "SET CYGWIN=notty",prompt= "\$|>|#",timeout= 10)
-            self.execute(cmd= "\n",prompt= "\$|>|#",timeout= 10)
-            main.log.info("ssh "+self.vm_user_name+'@'+self.vm_ip_address)
-            self.execute(cmd= "ssh "+self.vm_user_name+'@'+self.vm_ip_address,prompt= "(.*)",timeout= 10)
-            self.execute(cmd= "\n",prompt= "assword:",timeout= 10)
-            self.execute(cmd = self.vm_pwd,prompt = "\$",timeout = 10)
-            
+            self.execute( cmd="\n", prompt="\$|>|#", timeout=10 )
+            self.execute( cmd="SET CYGWIN=notty", prompt="\$|>|#", timeout=10 )
+            self.execute( cmd="\n", prompt="\$|>|#", timeout=10 )
+            main.log.info(
+                "ssh " +
+                self.vm_user_name +
+                '@' +
+                self.vm_ip_address )
+            self.execute(
+                cmd="ssh " +
+                self.vm_user_name +
+                '@' +
+                self.vm_ip_address,
+                prompt="(.*)",
+                timeout=10 )
+            self.execute( cmd="\n", prompt="assword:", timeout=10 )
+            self.execute( cmd=self.vm_pwd, prompt="\$", timeout=10 )
+
             return self.handle
-        else :
+        else:
             return main.FALSE
diff --git a/TestON/drivers/common/cli/toolsdriver.py b/TestON/drivers/common/cli/toolsdriver.py
index 2c165f9..ec4585f 100644
--- a/TestON/drivers/common/cli/toolsdriver.py
+++ b/TestON/drivers/common/cli/toolsdriver.py
@@ -1,13 +1,13 @@
 #!/usr/bin/env python
-'''
+"""
 Created on 26-Nov-2012
 
-@author: Raghav Kashyap(raghavkashyap@paxterrasolutions.com)
+author:: Raghav Kashyap( raghavkashyap@paxterrasolutions.com )
 
     TestON is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 2 of the License, or
-    (at your option) any later version.
+    ( at your option ) any later version.
 
     TestON is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -15,18 +15,23 @@
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with TestON.  If not, see <http://www.gnu.org/licenses/>.		
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 
 
-'''  
+"""
 import pexpect
-import struct, fcntl, os, sys, signal
+import struct
+import fcntl
+import os
 import sys
-sys.path.append("../")
+import signal
+import sys
+sys.path.append( "../" )
 from drivers.common.clidriver import CLI
 
 
-class Tools(CLI):
+class Tools( CLI ):
     # The common functions for Tools included in toolsdriver
-    def __init__(self):
-        super(CLI, self).__init__()
+
+    def __init__( self ):
+        super( CLI, self ).__init__()