message: Call TF_UpdateEdge in python_api.cc.
diff: @@ -57,43 +57,7 @@ void SetRequestedDevice(TF_Graph* graph, TF_Operation* op, const char* device) {
  void UpdateEdge(TF_Graph* graph, TF_Output new_src, TF_Input dst,
  TF_Status* status) {
  - mutex_lock l(graph->mu);
  - tensorflow::shape_inference::InferenceContext* ic =
  - graph->refiner.GetContext(&new_src.oper->node);
  -
  - if (ic->num_outputs() <= new_src.index) {
  - status->status = tensorflow::errors::OutOfRange(
  - "Cannot update edge. Output index [", new_src.index,
  - "] is greater than the number of total outputs [", ic->num_outputs(),
  - "].");
  - return;
  - }
  - tensorflow::shape_inference::ShapeHandle shape = ic->output(new_src.index);
  -
  - tensorflow::shape_inference::InferenceContext* ic_dst =
  - graph->refiner.GetContext(&dst.oper->node);
  - if (ic_dst->num_inputs() <= dst.index) {
  - status->status = tensorflow::errors::OutOfRange(
  - "Cannot update edge. Input index [", dst.index,
  - "] is greater than the number of total inputs [", ic_dst->num_inputs(),
  - "].");
  - return;
  - }
  - if (!ic_dst->MergeInput(dst.index, shape)) {
  - status->status = tensorflow::errors::InvalidArgument(
  - "Cannot update edge, incompatible shapes: ", ic_dst->DebugString(shape),
  - " and ", ic_dst->DebugString(ic_dst->input(dst.index)), ".");
  - return;
  - }
  - status->status = graph->graph.UpdateEdge(&new_src.oper->node, new_src.index,
  - &dst.oper->node, dst.index);
  -
  - if (TF_GetCode(status) == TF_OK) {
  - // This modification only updates the destination node for
  - // the purposes of running this graph in a session. Thus, we don't
  - // record the source node as being modified.
  - RecordMutation(graph, *dst.oper, "updating input tensor");
  - }
  + TF_UpdateEdge(graph, new_src, dst, status);
  }
  void RemoveAllControlInputs(TF_Graph* graph, TF_Operation* op) {
  