diff --git a/tests/ut/python/nn/test_loss.py b/tests/ut/python/nn/test_loss.py
index 21e3006818..4139e32d74 100644
--- a/tests/ut/python/nn/test_loss.py
+++ b/tests/ut/python/nn/test_loss.py
@@ -60,5 +60,5 @@ def test_SoftmaxCrossEntropyExpand():
     loss = nn.SoftmaxCrossEntropyExpand()
 
     logits = Tensor(np.random.randint(0, 9, [100, 10]).astype(np.float32))
-    labels = Tensor(np.random.randint(0, 9, [10,]).astype(np.float32))
+    labels = Tensor(np.random.randint(0, 9, [10, ]).astype(np.float32))
     _executor.compile(loss, logits, labels)
diff --git a/tests/ut/python/onnx/test_onnx.py b/tests/ut/python/onnx/test_onnx.py
index 29ed52ae28..a3de151ae9 100644
--- a/tests/ut/python/onnx/test_onnx.py
+++ b/tests/ut/python/onnx/test_onnx.py
@@ -17,7 +17,9 @@ import numpy as np
 import os
 import pytest
 import stat
+import time
 
+import mindspore.common.dtype as mstype
 import mindspore.nn as nn
 from mindspore import context
 from mindspore.common.parameter import Parameter
diff --git a/tests/ut/python/train/quant/test_quant.py b/tests/ut/python/train/quant/test_quant.py
index 2424b7ce7c..e1acd0ccb8 100644
--- a/tests/ut/python/train/quant/test_quant.py
+++ b/tests/ut/python/train/quant/test_quant.py
@@ -17,6 +17,7 @@ import numpy as np
 from mobilenetv2_combined import MobileNetV2
 
 import mindspore.context as context
+import mindspore.ops.operations as P
 from mindspore import Tensor
 from mindspore import nn
 from mindspore.nn.layer import combined
diff --git a/tests/ut/python/train/summary/test_graph_summary.py b/tests/ut/python/train/summary/test_graph_summary.py
index 63ce4d3c74..79a56ba748 100644
--- a/tests/ut/python/train/summary/test_graph_summary.py
+++ b/tests/ut/python/train/summary/test_graph_summary.py
@@ -14,8 +14,8 @@
 # ============================================================================
 """ test_graph_summary """
 import logging
-import numpy as np
 import os
+import numpy as np
 
 import mindspore.nn as nn
 from mindspore import Model, context
diff --git a/tests/ut/python/train/summary/test_histogram_summary.py b/tests/ut/python/train/summary/test_histogram_summary.py
index 47d463e2b3..dc0892167c 100644
--- a/tests/ut/python/train/summary/test_histogram_summary.py
+++ b/tests/ut/python/train/summary/test_histogram_summary.py
@@ -15,9 +15,9 @@
 """Test histogram summary."""
 
 import logging
-import numpy as np
 import os
 import tempfile
+import numpy as np
 
 from mindspore.common.tensor import Tensor
 from mindspore.train.summary._summary_adapter import _calc_histogram_bins
diff --git a/tests/ut/python/train/summary/test_image_summary.py b/tests/ut/python/train/summary/test_image_summary.py
index dba4134020..5e5bf2b3c3 100644
--- a/tests/ut/python/train/summary/test_image_summary.py
+++ b/tests/ut/python/train/summary/test_image_summary.py
@@ -19,8 +19,8 @@
 @Desc  : test summary function
 """
 import logging
-import numpy as np
 import os
+import numpy as np
 
 import mindspore.nn as nn
 from mindspore import Model, context
diff --git a/tests/ut/python/train/summary/test_summary.py b/tests/ut/python/train/summary/test_summary.py
index 4c4ef2672a..d26924a499 100644
--- a/tests/ut/python/train/summary/test_summary.py
+++ b/tests/ut/python/train/summary/test_summary.py
@@ -19,10 +19,11 @@
 @Desc  : test summary function
 """
 import logging
-import numpy as np
 import os
-import pytest
 import random
+import numpy as np
+import pytest
+
 
 import mindspore.nn as nn
 from mindspore.common.tensor import Tensor
diff --git a/tests/ut/python/train/summary/test_summary_abnormal_input.py b/tests/ut/python/train/summary/test_summary_abnormal_input.py
index ad206c65d3..95cbf7549b 100644
--- a/tests/ut/python/train/summary/test_summary_abnormal_input.py
+++ b/tests/ut/python/train/summary/test_summary_abnormal_input.py
@@ -19,8 +19,8 @@
 @Desc  : test summary function of abnormal input
 """
 import logging
-import numpy as np
 import os
+import numpy as np
 
 from mindspore.common.tensor import Tensor
 from mindspore.train.summary.summary_record import SummaryRecord
diff --git a/tests/ut/python/train/summary/test_tensor_summary.py b/tests/ut/python/train/summary/test_tensor_summary.py
index f3919e6102..9a028a8a12 100644
--- a/tests/ut/python/train/summary/test_tensor_summary.py
+++ b/tests/ut/python/train/summary/test_tensor_summary.py
@@ -19,8 +19,8 @@
 @Desc  : test summary function
 """
 import logging
-import numpy as np
 import os
+import numpy as np
 
 import mindspore.nn as nn
 from mindspore.common.tensor import Tensor
diff --git a/tests/ut/python/utils/test_callback.py b/tests/ut/python/utils/test_callback.py
index 04db64649a..e9f8c4e708 100644
--- a/tests/ut/python/utils/test_callback.py
+++ b/tests/ut/python/utils/test_callback.py
@@ -13,10 +13,10 @@
 # limitations under the License.
 # ============================================================================
 """test callback function."""
-import numpy as np
 import os
-import pytest
 import stat
+import numpy as np
+import pytest
 
 import mindspore.common.dtype as mstype
 import mindspore.nn as nn
diff --git a/tests/ut/python/utils/test_initializer.py b/tests/ut/python/utils/test_initializer.py
index 15d8838a46..417d0bb2b1 100644
--- a/tests/ut/python/utils/test_initializer.py
+++ b/tests/ut/python/utils/test_initializer.py
@@ -14,9 +14,9 @@
 # ============================================================================
 """ test_initializer """
 import math
+from functools import reduce
 import numpy as np
 import pytest as py
-from functools import reduce
 from scipy import stats
 
 import mindspore as ms
diff --git a/tests/ut/python/utils/test_serialize.py b/tests/ut/python/utils/test_serialize.py
index f8a9db3670..a248a49bce 100644
--- a/tests/ut/python/utils/test_serialize.py
+++ b/tests/ut/python/utils/test_serialize.py
@@ -13,11 +13,11 @@
 # limitations under the License.
 # ============================================================================
 """ut for model serialize(save/load)"""
-import numpy as np
 import os
-import pytest
 import stat
 import time
+import pytest
+import numpy as np
 
 import mindspore.common.dtype as mstype
 import mindspore.nn as nn