Index: pyyaml/trunk/tests/lib/canonical.py
===================================================================
--- pyyaml/trunk/tests/lib/canonical.py	(revision 330)
+++ pyyaml/trunk/tests/lib/canonical.py	(revision 377)
@@ -211,4 +211,7 @@
         self.events = []
         self.parsed = False
+
+    def dispose(self):
+        pass
 
     # stream: STREAM-START document* STREAM-END