Do not assume Attribute nodes always have a QN - it may be missing for attributes...

PiperOrigin-RevId: 190564784

diff --git a/tensorflow/contrib/autograph/pyct/ast_util.py b/tensorflow/contrib/autograph/pyct/ast_util.py
index 5a41b5e..4f76a69 100644 (file)
--- a/tensorflow/contrib/autograph/pyct/ast_util.py
+++ b/tensorflow/contrib/autograph/pyct/ast_util.py
@@ -84,7 +84,10 @@ class SymbolRenamer(gast.NodeTransformer):
     return self._process(node)
 
   def visit_Attribute(self, node):
-    return self._process(node)
+    if anno.hasanno(node, anno.Basic.QN):
+      return self._process(node)
+    # Attributes of dynamic objects will not have a QN.
+    return self.generic_visit(node)
 
 
 def rename_symbols(node, name_map):