--- utils.py.orig	2011-01-11 17:47:31.000000000 +0300
+++ utils.py	2011-03-18 15:16:51.000000000 +0300
@@ -140,8 +140,10 @@
             raise ASTNGBuildingException
         _check_children(child)
 
-
-from _ast import PyCF_ONLY_AST
+try:
+    from _ast import PyCF_ONLY_AST
+except ImportError:
+    PyCF_ONLY_AST = 1024
 def parse(string):
     return compile(string, "<string>", 'exec', PyCF_ONLY_AST)
 
