convert ast versioning to mercurial
diff --git a/Parser/Python.asdl b/Parser/Python.asdl
index 9407b2f..8e2e1ac 100644
--- a/Parser/Python.asdl
+++ b/Parser/Python.asdl
@@ -1,6 +1,6 @@
 -- ASDL's four builtin types are identifier, int, string, object
 
-module Python version "$Revision$"
+module Python
 {
 	mod = Module(stmt* body)
 	    | Interactive(stmt* body)