commit b92c68721b061503c743fe3566e3890cb0169919
author Tomer Kaftan <kaftan@google.com> Thu Jul 30 15:56:30 2020 -0700
committer TensorFlower Gardener <gardener@tensorflow.org> Thu Jul 30 16:12:40 2020 -0700
tree 73a7deba999cf228a77c8682fa458f7af264f0e9
parent f80ef4b17e5592b83fefddc7f4a7d0fb57760ba1

To limit behavior changes from the KerasTensors refactor, make sure the "EagerTensor cannot be passed to a Keras input" only triggers for actual eagertensors, not symbolic graph tensors

PiperOrigin-RevId: 324101079
Change-Id: I1a80a6a8986fefadf71fd870b84f04968a95ab1b

tensorflow/python/keras/engine/input_layer.py

diff --git a/tensorflow/python/keras/engine/input_layer.py b/tensorflow/python/keras/engine/input_layer.py
index 75cf496..4818c5c 100644
--- a/tensorflow/python/keras/engine/input_layer.py
+++ b/tensorflow/python/keras/engine/input_layer.py
@@ -164,7 +164,8 @@
     else:
       raise_eager_tensor_error = False
       if keras_tensor.keras_tensors_enabled():
-        if not isinstance(input_tensor, keras_tensor.KerasTensor):
+        if (not isinstance(input_tensor, keras_tensor.KerasTensor) and
+            not tf_utils.is_symbolic_tensor(input_tensor)):
           raise_eager_tensor_error = True
       else:
         if not tf_utils.is_symbolic_tensor(input_tensor):