From a7bdd3910d64921f253a289336f766d838d0072c Mon Sep 17 00:00:00 2001
From: Hayaki Saito <user@zuse.jp>
Date: Sun, 1 Jun 2014 23:28:34 +0900
Subject: [PATCH] Cleanup

---
 trachet/trace.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/trachet/trace.py b/trachet/trace.py
index 07d3c72..abb686d 100644
--- a/trachet/trace.py
+++ b/trachet/trace.py
@@ -40,11 +40,11 @@
 from iomode import IOMode
 
 
-class MockController():
+class MockController(object):
     pass
 
 
-class SwitchOnOffTrait():
+class SwitchOnOffTrait(object):
 
     """
     >>> controller = MockController