fix import order in master.py
@@ -22,13 +22,13 @@ import pickle
import random
import time
-import eval_lib
-
from six import iteritems
from six import iterkeys
from six import itervalues
from six.moves import input as input_str
+import eval_lib
+
# List of allowed sizes of adversarial perturbation
ALLOWED_EPS = [4, 8, 12, 16]
