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15 changes: 11 additions & 4 deletions python/tvm/relay/frontend/keras.py
Original file line number Diff line number Diff line change
Expand Up @@ -1526,12 +1526,19 @@ def _convert_layer(keras_layer, etab, scope=""):
raise ValueError("Keras frontend currently supports tensorflow backend only.")
if keras.backend.image_data_format() != "channels_last":
raise ValueError("Keras frontend currently supports data_format = channels_last only.")
expected_model_class = keras.engine.training.Model
if hasattr(keras.engine, "InputLayer"):
input_layer_class = keras.engine.InputLayer
try:
import keras.engine as E
except ImportError:
try:
import keras.src.engine as E
except ImportError:
raise ImportError("Cannot find Keras's engine")
expected_model_class = E.training.Model
if hasattr(E, "InputLayer"):
input_layer_class = E.InputLayer
else:
# TFlite >=2.6
input_layer_class = keras.engine.input_layer.InputLayer
input_layer_class = E.input_layer.InputLayer
else:
# Importing from Tensorflow Keras (tf.keras)
try:
Expand Down