Fix relative imports to work if packaged

tutorials/image/cifar10_estimator/cifar10_main.py

@@ -33,8 +33,9 @@ import functools
 import operator
 import os
 
-import cifar10
-import cifar10_model
+from . import cifar10
+from . import cifar10_model
+
 import numpy as np
 from six.moves import xrange  # pylint: disable=redefined-builtin
 import tensorflow as tf

tutorials/image/cifar10_estimator/cifar10_model.py

@@ -19,7 +19,7 @@ from __future__ import print_function
 
 import tensorflow as tf
 
-import model_base
+from . import model_base
 
 
 class ResNetCifar10(model_base.ResNet):