Index: pyyaml/trunk/lib3/yaml/serializer.py
===================================================================
--- pyyaml/trunk/lib/yaml/serializer.py	(revision 222)
+++ pyyaml/trunk/lib3/yaml/serializer.py	(revision 328)
@@ -2,14 +2,14 @@
 __all__ = ['Serializer', 'SerializerError']
 
-from error import YAMLError
-from events import *
-from nodes import *
+from .error import YAMLError
+from .events import *
+from .nodes import *
 
 class SerializerError(YAMLError):
     pass
 
-class Serializer(object):
+class Serializer:
 
-    ANCHOR_TEMPLATE = u'id%03d'
+    ANCHOR_TEMPLATE = 'id%03d'
 
     def __init__(self, encoding=None,