diff --git a/deepspeech/exps/deepspeech2/model.py b/deepspeech/exps/deepspeech2/model.py
index 710630a7864a6296a0f0ed4f19ede9f17df136c9..56743629b6b1cfac1e0ca1e57ab3748290789cad 100644
--- a/deepspeech/exps/deepspeech2/model.py
+++ b/deepspeech/exps/deepspeech2/model.py
@@ -21,11 +21,6 @@ from typing import Optional
 import jsonlines
 import numpy as np
 import paddle
-from paddle import distributed as dist
-from paddle import inference
-from paddle.io import DataLoader
-from yacs.config import CfgNode
-
 from deepspeech.frontend.featurizer.text_featurizer import TextFeaturizer
 from deepspeech.io.collator import SpeechCollator
 from deepspeech.io.dataset import ManifestDataset
@@ -44,6 +39,10 @@ from deepspeech.utils import mp_tools
 from deepspeech.utils.log import Autolog
 from deepspeech.utils.log import Log
 from deepspeech.utils.utility import UpdateConfig
+from paddle import distributed as dist
+from paddle import inference
+from paddle.io import DataLoader
+from yacs.config import CfgNode
 
 logger = Log(__name__).getlog()
 
@@ -412,6 +411,7 @@ class DeepSpeech2Tester(DeepSpeech2Trainer):
 class DeepSpeech2ExportTester(DeepSpeech2Tester):
     def __init__(self, config, args):
         super().__init__(config, args)
+        self.apply_static = True
 
     def compute_result_transcripts(self, audio, audio_len, vocab_list, cfg):
         if self.args.model_type == "online":
diff --git a/deepspeech/training/trainer.py b/deepspeech/training/trainer.py
index 2da838047206fc34011986daf33aa4203c5e92dd..ddde1e885c2cf33f6dc2af13e90a96315780340c 100644
--- a/deepspeech/training/trainer.py
+++ b/deepspeech/training/trainer.py
@@ -18,9 +18,6 @@ from contextlib import contextmanager
 from pathlib import Path
 
 import paddle
-from paddle import distributed as dist
-from tensorboardX import SummaryWriter
-
 from deepspeech.training.reporter import ObsScope
 from deepspeech.training.reporter import report
 from deepspeech.training.timer import Timer
@@ -31,6 +28,8 @@ from deepspeech.utils.log import Log
 from deepspeech.utils.utility import all_version
 from deepspeech.utils.utility import seed_all
 from deepspeech.utils.utility import UpdateConfig
+from paddle import distributed as dist
+from tensorboardX import SummaryWriter
 
 __all__ = ["Trainer"]
 
@@ -348,8 +347,12 @@ class Trainer():
         try:
             with Timer("Test/Decode Done: {}"):
                 with self.eval():
-                    self.restore()
-                    self.test()
+                    if hasattr(self,
+                               "apply_static") and self.apply_static is True:
+                        self.test()
+                    else:
+                        self.restore()
+                        self.test()
         except KeyboardInterrupt:
             exit(-1)
 
@@ -381,6 +384,8 @@ class Trainer():
         elif self.args.checkpoint_path:
             output_dir = Path(
                 self.args.checkpoint_path).expanduser().parent.parent
+        elif self.args.export_path:
+            output_dir = Path(self.args.export_path).expanduser().parent.parent
         self.output_dir = output_dir
         self.output_dir.mkdir(parents=True, exist_ok=True)
 
diff --git a/examples/aishell/s0/local/test.sh b/examples/aishell/s0/local/test.sh
index 64d7250304137e7d658d3bb48d916a346229d876..d539ac4943039fe6c33eb1373985aa98617a587f 100755
--- a/examples/aishell/s0/local/test.sh
+++ b/examples/aishell/s0/local/test.sh
@@ -13,7 +13,7 @@ ckpt_prefix=$2
 model_type=$3
 
 # download language model
-bash local/download_lm_ch.sh > dev/null 2>&1
+bash local/download_lm_ch.sh > /dev/null 2>&1
 if [ $? -ne 0 ]; then
    exit 1
 fi
diff --git a/examples/aishell/s0/local/test_export.sh b/examples/aishell/s0/local/test_export.sh
index 71469753db5b2615585851f7f3c37a4119ff5056..f0a30ce56fbc4cc43b559295fba7ef3ac3b3be26 100755
--- a/examples/aishell/s0/local/test_export.sh
+++ b/examples/aishell/s0/local/test_export.sh
@@ -13,7 +13,7 @@ jit_model_export_path=$2
 model_type=$3
 
 # download language model
-bash local/download_lm_ch.sh > dev/null 2>&1
+bash local/download_lm_ch.sh > /dev/null 2>&1
 if [ $? -ne 0 ]; then
    exit 1
 fi