diff --git a/easy_rec/python/compat/early_stopping.py b/easy_rec/python/compat/early_stopping.py
index fe4c12132..fc850fb62 100644
--- a/easy_rec/python/compat/early_stopping.py
+++ b/easy_rec/python/compat/early_stopping.py
@@ -21,9 +21,9 @@
 import os
 import threading
 import time
-from distutils.version import LooseVersion
 
 import tensorflow as tf
+from distutils.version import LooseVersion
 from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import ops
 from tensorflow.python.ops import init_ops
diff --git a/easy_rec/python/model/dssm_senet.py b/easy_rec/python/model/dssm_senet.py
index 406d3cbdf..40b7faec6 100644
--- a/easy_rec/python/model/dssm_senet.py
+++ b/easy_rec/python/model/dssm_senet.py
@@ -6,12 +6,11 @@
 from easy_rec.python.layers import senet
 from easy_rec.python.model.dssm import DSSM
 from easy_rec.python.model.match_model import MatchModel
+from easy_rec.python.protos.dssm_senet_pb2 import DSSM_SENet as DSSM_SENet_Config  # NOQA
 from easy_rec.python.protos.loss_pb2 import LossType
 from easy_rec.python.protos.simi_pb2 import Similarity
 from easy_rec.python.utils.proto_util import copy_obj
 
-from easy_rec.python.protos.dssm_senet_pb2 import DSSM_SENet as DSSM_SENet_Config
-
 if tf.__version__ >= '2.0':
   tf = tf.compat.v1
 losses = tf.losses
diff --git a/easy_rec/python/test/train_eval_test.py b/easy_rec/python/test/train_eval_test.py
index 0f7b82a28..ca29fc89c 100644
--- a/easy_rec/python/test/train_eval_test.py
+++ b/easy_rec/python/test/train_eval_test.py
@@ -7,11 +7,11 @@
 import threading
 import time
 import unittest
-from distutils.version import LooseVersion
 
 import numpy as np
 import six
 import tensorflow as tf
+from distutils.version import LooseVersion
 from tensorflow.python.platform import gfile
 
 from easy_rec.python.main import predict
diff --git a/setup.cfg b/setup.cfg
index 337833a0f..b43211827 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -10,7 +10,7 @@ multi_line_output = 7
 force_single_line = true
 known_standard_library = setuptools
 known_first_party = easy_rec
-known_third_party = absl,common_io,docutils,eas_prediction,faiss,future,google,graphlearn,kafka,matplotlib,numpy,oss2,pai,pandas,psutil,six,sklearn,sparse_operation_kit,sphinx_markdown_tables,sphinx_rtd_theme,tensorflow,yaml
+known_third_party = absl,common_io,distutils,docutils,eas_prediction,faiss,future,google,graphlearn,kafka,matplotlib,numpy,oss2,pai,pandas,psutil,six,sklearn,sparse_operation_kit,sphinx_markdown_tables,sphinx_rtd_theme,tensorflow,yaml
 no_lines_before = LOCALFOLDER
 default_section = THIRDPARTY
 skip = easy_rec/python/protos