diff -r cb4ae3b04d2e -r cd814cd7bfbe Tools/parser/unparse.py
--- a/Tools/parser/unparse.py	Sat Jan 19 22:59:42 2013 +0100
+++ b/Tools/parser/unparse.py	Mon Mar 18 18:12:39 2013 +0100
@@ -518,10 +518,10 @@
             else: self.write(", ")
             self.write("*")
             if t.vararg:
-                self.write(t.vararg)
-                if t.varargannotation:
+                self.write(t.vararg.arg)
+                if t.vararg.annotation:
                     self.write(": ")
-                    self.dispatch(t.varargannotation)
+                    self.dispatch(t.vararg.annotation)
 
         # keyword-only arguments
         if t.kwonlyargs:
@@ -537,10 +537,10 @@
         if t.kwarg:
             if first:first = False
             else: self.write(", ")
-            self.write("**"+t.kwarg)
-            if t.kwargannotation:
+            self.write("**"+t.kwarg.arg)
+            if t.kwarg.annotation:
                 self.write(": ")
-                self.dispatch(t.kwargannotation)
+                self.dispatch(t.kwarg.annotation)
 
     def _keyword(self, t):
         self.write(t.arg)