Adapt python script to 2.6 version

Scripts/testB2L.py

@@ -73,7 +73,7 @@ for nev in range( 10 ):
     status, val = mem.read( 0 , 0x00050080)
     size = val
 
-    print "Number of words received = {}".format( size )
+    print "Number of words received = {0}".format( size )
 
     if size == 0: 
         print 'Not enough data read, exit' 
@@ -114,4 +114,4 @@ for nev in range( 10 ):
         print 'Error in CRC comparison' 
         nErr = nErr + 1 
 
-print 'number of errors = {}'.format( nErr ) 
+print 'number of errors = {0}'.format( nErr )