[ONOS-7039] [ONOS-7044] Fix PEP8 Warnings in TestON

Change-Id: Ied79ff9caff5487a6df50466307f757468d7ca3a
diff --git a/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py b/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py
index c5c1f88..373ed2b 100644
--- a/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.py
+++ b/TestON/tests/SCPF/SCPFscaleTopo/dependencies/topo.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
@@ -18,15 +18,14 @@
     You should have received a copy of the GNU General Public License
     along with TestON.  If not, see <http://www.gnu.org/licenses/>.
 """
-
 """
     These functions can be used for topology comparisons
 """
-
 import time
 import os
 import json
 
+
 def sendArpPackage( main, hostList ):
     import json
     import time
@@ -35,10 +34,10 @@
         return the total hosts number from Onos
     """
     main.log.info( "Sending Arping package..." )
-    if isinstance(hostList, list):
+    if isinstance( hostList, list ):
         for h in hostList:
             main.Mininet1.arping( srcHost=h, dstHost="10.0.0.1", output=main.FALSE, noResult=True )
-            time.sleep(0.5)
+            time.sleep( 0.5 )
     else:
         main.Mininet1.arping( srcHost=hostList, dstHost="10.0.0.1", output=main.FALSE, noResult=True )
     try:
@@ -46,8 +45,8 @@
         summaryStr = json.loads( main.Cluster.active( 0 ).CLI.summary().encode() )
         hostNum = summaryStr.get( 'hosts' )
 
-    except (TypeError, ValueError):
-        main.log.exception( " Object not as expected: {!r}".format( summaryStr) )
+    except ( TypeError, ValueError ):
+        main.log.exception( " Object not as expected: {!r}".format( summaryStr ) )
         return -1
     except Exception:
         main.log.exception( self.name + ": Uncaught exception!" )