message: Re-enabling delete on exit true by default.
diff: @@ -91,7 +91,7 @@ def ast_to_source(node, indentation=' '):
  def ast_to_object(node,
  indentation=' ',
  source_prefix=None,
  - delete_on_exit=False):
  + delete_on_exit=True):
  """Return the Python objects represented by given AST.
  Compiling the AST code this way ensures that the source code is readable by
  