Update mobilenet_example.ipynb (#10182)

* Update mobilenet_example.ipynb

fixes https://github.com/tensorflow/models/issues/10161

* Update mobilenet_example.ipynb

* Update mobilenet_example.ipynb

* Update mobilenet_example.ipynb

research/slim/nets/mobilenet/mobilenet_example.ipynb

@@ -197,9 +197,10 @@
       },
       "outputs": [],
       "source": [
-        "# setup path\n",
+        "# setup path and install tf-slim\n",
         "import sys\n",
         "sys.path.append('/content/models/research/slim')"
+        "!pip install tf_slim",
       ]
     },
     {
@@ -228,8 +229,10 @@
       "outputs": [],
       "source": [
         "import tensorflow.compat.v1 as tf\n",
+        "import tf_slim as slim\n",
         "from nets.mobilenet import mobilenet_v2\n",
         "\n",
+        "tf.compat.v1.disable_eager_execution()\n"
         "tf.reset_default_graph()\n",
         "\n",
         "# For simplicity we just decode jpeg inside tensorflow.\n",
@@ -244,7 +247,7 @@
         "images = tf.image.resize_images(images, (224, 224))\n",
         "\n",
         "# Note: arg_scope is optional for inference.\n",
-        "with tf.contrib.slim.arg_scope(mobilenet_v2.training_scope(is_training=False)):\n",
+        "with slim.arg_scope(mobilenet_v2.training_scope(is_training=False)):\n",
         "  logits, endpoints = mobilenet_v2.mobilenet(images)\n",
         "  \n",
         "# Restore using exponential moving average since it produces (1.5-2%) higher \n",