diff --git a/TestON/tests/SCPF/SCPFswitchLat/dependencies/topo-perf-1sw.py b/TestON/tests/SCPF/SCPFswitchLat/dependencies/topo-perf-1sw.py
index 1793e2b..3652c82 100644
--- a/TestON/tests/SCPF/SCPFswitchLat/dependencies/topo-perf-1sw.py
+++ b/TestON/tests/SCPF/SCPFswitchLat/dependencies/topo-perf-1sw.py
@@ -1,5 +1,5 @@
 """
-Copyright 2015 Open Networking Foundation (ONF)
+Copyright 2015 Open Networking Foundation ( ONF )
 
 Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
 the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
@@ -8,7 +8,7 @@
     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
@@ -18,17 +18,17 @@
     You should have received a copy of the GNU General Public License
     along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 """
-
-'''
+"""
 Simple 1 switch topology for topologoy performance test
-'''
-
+"""
 from mininet.topo import Topo
 
-class MyTopo( Topo ):
-    def __init__(self):
-        Topo.__init__(self)
 
-        s3 = self.addSwitch( "s3", dpid="0000000000000001")
+class MyTopo( Topo ):
+
+    def __init__( self ):
+        Topo.__init__( self )
+
+        s3 = self.addSwitch( "s3", dpid="0000000000000001" )
 
 topos = { 'mytopo': ( lambda: MyTopo() ) }