message: Make sure toco prints error message when run from python.
diff: @@ -89,6 +89,7 @@ PyObject* TocoConvert(PyObject* model_flags_proto_txt_raw,
  auto status = Export(toco_flags, *model, toco_flags.allow_custom_ops(),
  &output_file_contents_txt);
  if (!status.ok()) {
  + fprintf(stderr, "Toco failure: %s\n", status.error_message().c_str());
  return TOCO_FROM_CPPSTRING_TO_PY("", 0);
  }
  if (extended_return) {
  