--- a/mercurial/lock.py	Thu Nov 17 19:38:57 2005 +0100
+++ b/mercurial/lock.py	Fri Nov 18 22:48:47 2005 -0800
@@ -11,7 +11,7 @@
 class LockHeld(Exception):
     pass
 
-class lock:
+class lock(object):
     def __init__(self, file, wait=1, releasefn=None):
         self.f = file
         self.held = 0