Index: pyyaml/trunk/lib/yaml/events.py
===================================================================
--- pyyaml/trunk/lib/yaml/events.py	(revision 131)
+++ pyyaml/trunk/lib/yaml/events.py	(revision 132)
@@ -50,8 +50,8 @@
 class DocumentStartEvent(Event):
     def __init__(self, start_mark=None, end_mark=None,
-            implicit=None, version=None, tags=None):
+            explicit=None, version=None, tags=None):
         self.start_mark = start_mark
         self.end_mark = end_mark
-        self.implicit = implicit
+        self.explicit = explicit
         self.version = version
         self.tags = tags
@@ -59,8 +59,8 @@
 class DocumentEndEvent(Event):
     def __init__(self, start_mark=None, end_mark=None,
-            implicit=None):
+            explicit=None):
         self.start_mark = start_mark
         self.end_mark = end_mark
-        self.implicit = implicit
+        self.explicit = explicit
 
 class AliasEvent(NodeEvent):