diff --git a/examples/tiny/run.sh b/examples/tiny/run.sh
index 59ecea5a2..4fa15bd53 100644
--- a/examples/tiny/run.sh
+++ b/examples/tiny/run.sh
@@ -6,11 +6,11 @@ source path.sh
 # prepare data
 bash ./local/run_data.sh
 
-# test pretrain model
-bash ./local/run_test_golden.sh
-
-# test pretain model
-bash ./local/run_infer_golden.sh
+## test pretrain model
+#bash ./local/run_test_golden.sh
+#
+## test pretain model
+#bash ./local/run_infer_golden.sh
 
 # train model
 bash ./local/run_train.sh
@@ -21,5 +21,5 @@ bash ./local/run_test.sh
 # infer model
 bash ./local/run_infer.sh
 
-# tune model
-bash ./local/run_tune.sh
+## tune model
+#bash ./local/run_tune.sh
diff --git a/infer.py b/infer.py
index dc5ffe7eb..52d3a6744 100644
--- a/infer.py
+++ b/infer.py
@@ -13,6 +13,20 @@
 # limitations under the License.
 """Inferer for DeepSpeech2 model."""
 
+import io
+import logging
+import argparse
+import functools
+
+from paddle import distributed as dist
+
+from utils.utility import print_arguments
+from training.cli import default_argument_parser
+
+from model_utils.config import get_cfg_defaults
+from model_utils.model import DeepSpeech2Tester as Tester
+from utils.error_rate import char_errors, word_errors
+
 
 def main_sp(config, args):
     exp = Tester(config, args)