diff --git a/mininet/link.py b/mininet/link.py
index 2594a17..3930ead 100644
--- a/mininet/link.py
+++ b/mininet/link.py
@@ -297,7 +297,7 @@ class TCIntf( Intf ):
                   ( [ '%s delay' % delay ] if delay is not None else [] ) +
                   ( [ '%s jitter' % jitter ] if jitter is not None else [] ) +
                   ( ['%d%% loss' % loss ] if loss is not None else [] ) +
-                  ( [ 'ECN' ] if enable_ecn  else [ 'RED' ]
+                  ( [ 'ECN' ] if enable_ecn else [ 'RED' ]
                     if enable_red else [] ) )
         info( '(' + ' '.join( stuff ) + ') ' )
 
diff --git a/mininet/util.py b/mininet/util.py
index 6418f52..fedea1a 100644
--- a/mininet/util.py
+++ b/mininet/util.py
@@ -252,7 +252,7 @@ def ipStr( ip ):
 def ipNum( w, x, y, z ):
     """Generate unsigned int from components of IP address
        returns: w << 24 | x << 16 | y << 8 | z"""
-    return  ( w << 24 ) | ( x << 16 ) | ( y << 8 ) | z
+    return ( w << 24 ) | ( x << 16 ) | ( y << 8 ) | z
 
 def ipAdd( i, prefixLen=8, ipBaseNum=0x0a000000 ):
     """Return IP address string from ints