diff --git a/ppcls/data/reader.py b/ppcls/data/reader.py
index 70160a4d6..e68ebd77e 100755
--- a/ppcls/data/reader.py
+++ b/ppcls/data/reader.py
@@ -13,16 +13,15 @@
 #limitations under the License.
 
 import cv2
-
 import numpy as np
 import os
 import signal
 
 import paddle
 
-import imaug
-from imaug import transform
-from imaug import MixupOperator
+from . import imaug
+from .imaug import transform
+from .imaug import MixupOperator
 from ppcls.utils import logger
 
 trainers_num = int(os.environ.get('PADDLE_TRAINERS_NUM', 1))
@@ -190,9 +189,9 @@ def partial_reader(params, full_lines, part_id=0, part_num=1):
         for line in full_lines:
             img_path, label = line.split()
             img_path = os.path.join(params['data_dir'], img_path)
-            img = open(img_path).read()
-            img = transform(img, ops)
-            yield (img, int(label))
+            with open(img_path, 'rb') as f:
+                img = f.read()
+            yield (transform(img, ops), int(label))
 
     return reader
 
diff --git a/ppcls/modeling/utils.py b/ppcls/modeling/utils.py
index acc4d1948..e7787b812 100644
--- a/ppcls/modeling/utils.py
+++ b/ppcls/modeling/utils.py
@@ -12,10 +12,11 @@
 #See the License for the specific language governing permissions and
 #limitations under the License.
 
-import architectures
 import types
 from difflib import SequenceMatcher
 
+from . import architectures
+
 
 def get_architectures():
     """
diff --git a/ppcls/optimizer/__init__.py b/ppcls/optimizer/__init__.py
index 9a192d9a1..199799229 100644
--- a/ppcls/optimizer/__init__.py
+++ b/ppcls/optimizer/__init__.py
@@ -15,5 +15,5 @@
 from . import optimizer
 from . import learning_rate
 
-from optimizer import OptimizerBuilder
-from learning_rate import LearningRateBuilder
+from .optimizer import OptimizerBuilder
+from .learning_rate import LearningRateBuilder