Merge branch 'release/1.9.3'

Author: Alex

backend/translate/graph.py

@@ -11,8 +11,6 @@ class Graph:
   """Representing a Network Graph."""
   def __init__(self):
     self.layers = []
-    self.root = Node()
-    self.input_shape = []
 
 
   def add_layer(self, layer):
@@ -23,13 +21,6 @@ def add_layer(self, layer):
     """
     self.layers.append(layer)
 
-  def set_input_shape(self, input_shape):
-    """Set the input shape of the model.
-
-    Arguments:
-        input_shape {list} -- the input shape of the model
-    """
-    self.input_shape = input_shape
 
   # Return the Graph representation.
   def __repr__(self):

backend/translate/layer.py

@@ -43,8 +43,9 @@ def add_input_names(self, nodes):
     Arguments:
         nodes {list} -- all nodes that are inputs to the layer
     """
-    for node in nodes[0]:
-      self.input_names.append(node[0])
+    if (len(nodes) > 0):
+      for node in nodes[0]:
+        self.input_names.append(node[0])
 
   # String Representation of the Layer.
   def __repr__(self):

backend/translate/translate_keras.py

@@ -51,8 +51,6 @@ def graph_from_external_file(keras_code, general_code):
     model_keras = keras.models.model_from_json(result["stdout"])
     layers_extracted = model_json['config']['layers']
     graph = Graph()
-    graph.set_input_shape(
-        layers_extracted[0]['config']['batch_input_shape'][1:])
     previous_node = ''
     for index, json_layer in enumerate(layers_extracted):
         if len(layers_extracted) > len(model_keras.layers):