update deprecated imports in _cw tutorial
@@ -13,12 +13,10 @@ from tensorflow.python.platform import flags
import logging
import os
from cleverhans.attacks import CarliniWagnerL2
-from cleverhans.utils import cnn_model, set_log_level
-from cleverhans.utils import grid_visual, AccuracyReport
+from cleverhans.utils import grid_visual, AccuracyReport, set_log_level
+from cleverhans.utils_keras import cnn_model, KerasModelWrapper
from cleverhans.utils_mnist import data_mnist
-from cleverhans.utils_tf import model_train, model_eval
-from cleverhans.utils_tf import tf_model_load
-from cleverhans.utils_keras import KerasModelWrapper
+from cleverhans.utils_tf import model_train, model_eval, tf_model_load
FLAGS = flags.FLAGS
