Py3'ification of print statement from exit command

command.py

@@ -1448,11 +1448,11 @@ Available commands:
             """)
 
    def help_exit(self):
-      print """
+      print("""
             Usage: exit
 
             End program.
-            """
+            """)
 
    def help_areaplot(self):
       print("""