diff --git a/tests/st/control/test_multigraph_sink.py b/tests/st/control/test_multigraph_sink.py
index 1b48a1b905c..9f7d24a80af 100644
--- a/tests/st/control/test_multigraph_sink.py
+++ b/tests/st/control/test_multigraph_sink.py
@@ -21,7 +21,7 @@ from mindspore.common import ms_function
 from mindspore.common.tensor import Tensor
 
 
-def setup_module(module):
+def setup_module():
     context.set_context(mode=context.PYNATIVE_MODE, device_target="Ascend")
 
 
@@ -33,7 +33,7 @@ c5 = Tensor([14], mstype.int32)
 
 
 @ms_function
-def simple_if(x, y, z):
+def simple_if(x, y):
     if x < y:
         x = x + 1
     else:
@@ -43,7 +43,7 @@ def simple_if(x, y, z):
 
 
 @ms_function
-def if_by_if(x, y, z):
+def if_by_if(x, y):
     if x < y:
         x = x + 1
     if y > x:
@@ -66,7 +66,7 @@ def if_in_if(x, y, z):
 
 
 @ms_function
-def simple_while(x, y, z):
+def simple_while(x, y):
     y = y + 4
     while x < y:
         x = x + 1
@@ -137,13 +137,13 @@ def while_in_while_in_while(x, y, z):
 @pytest.mark.platform_arm_ascend_training
 @pytest.mark.env_onecard
 def test_simple_if():
-    output = simple_if(c1, c2, c3)
+    output = simple_if(c1, c2)
     expect = Tensor([6], mstype.int32)
     assert output == expect
 
 
 def test_if_by_if():
-    output = if_by_if(c1, c2, c3)
+    output = if_by_if(c1, c2)
     expect = Tensor([8], mstype.int32)
     assert output == expect
 
@@ -163,7 +163,7 @@ def test_if_in_if():
 @pytest.mark.platform_arm_ascend_training
 @pytest.mark.env_onecard
 def test_simple_while():
-    output = simple_while(c1, c2, c3)
+    output = simple_while(c1, c2)
     expect = Tensor([21], mstype.int32)
     assert output == expect
 
diff --git a/tests/st/control/test_while.py b/tests/st/control/test_while.py
index 548c866a202..94e39c411cc 100644
--- a/tests/st/control/test_while.py
+++ b/tests/st/control/test_while.py
@@ -18,7 +18,7 @@ from mindspore.common import dtype as mstype
 
 
 @ms_function
-def t1_while(x, y, z):
+def t1_while(x, y):
     y = y + 4
     while x < y:
         x = x + 1
@@ -30,9 +30,8 @@ def test_net():
     context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
     c1 = Tensor([2], mstype.int32)
     c2 = Tensor([14], mstype.int32)
-    c3 = Tensor([1], mstype.int32)
     expect = Tensor([21], mstype.int32)
-    ret = t1_while(c1, c2, c3)
+    ret = t1_while(c1, c2)
     assert ret == expect
 
 
diff --git a/tests/st/mem_reuse/check_file.py b/tests/st/mem_reuse/check_file.py
index 5359ccea3e6..524079db648 100644
--- a/tests/st/mem_reuse/check_file.py
+++ b/tests/st/mem_reuse/check_file.py
@@ -19,8 +19,8 @@ curr_path = os.path.abspath(os.curdir)
 file_memreuse = curr_path + "/mem_reuse_check/memreuse.ir"
 file_normal = curr_path + "/mem_reuse_check/normal_mem.ir"
 checker = os.path.exists(file_memreuse)
-assert checker == True
+assert checker, True
 checker = os.path.exists(file_normal)
-assert checker == True
+assert checker, True
 checker = filecmp.cmp(file_memreuse, file_normal)
-assert checker == True
+assert checker, True
diff --git a/tests/st/mem_reuse/resnet.py b/tests/st/mem_reuse/resnet.py
index f4e2d491e55..19843efa707 100644
--- a/tests/st/mem_reuse/resnet.py
+++ b/tests/st/mem_reuse/resnet.py
@@ -99,8 +99,7 @@ class ResidualBlock(nn.Cell):
     def __init__(self,
                  in_channels,
                  out_channels,
-                 stride=1,
-                 down_sample=False):
+                 stride=1):
         super(ResidualBlock, self).__init__()
 
         out_chls = out_channels // self.expansion
@@ -188,7 +187,7 @@ class ResidualBlockWithDown(nn.Cell):
 
 class MakeLayer0(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer0, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=1, down_sample=True)
         self.b = block(out_channels, out_channels, stride=stride)
@@ -204,7 +203,7 @@ class MakeLayer0(nn.Cell):
 
 class MakeLayer1(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer1, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -222,7 +221,7 @@ class MakeLayer1(nn.Cell):
 
 class MakeLayer2(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer2, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -244,7 +243,7 @@ class MakeLayer2(nn.Cell):
 
 class MakeLayer3(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer3, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -260,7 +259,7 @@ class MakeLayer3(nn.Cell):
 
 class ResNet(nn.Cell):
 
-    def __init__(self, block, layer_num, num_classes=100, batch_size=32):
+    def __init__(self, block, num_classes=100, batch_size=32):
         super(ResNet, self).__init__()
         self.batch_size = batch_size
         self.num_classes = num_classes
@@ -271,10 +270,10 @@ class ResNet(nn.Cell):
         self.relu = P.ReLU()
         self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, pad_mode="same")
 
-        self.layer1 = MakeLayer0(block, layer_num[0], in_channels=64, out_channels=256, stride=1)
-        self.layer2 = MakeLayer1(block, layer_num[1], in_channels=256, out_channels=512, stride=2)
-        self.layer3 = MakeLayer2(block, layer_num[2], in_channels=512, out_channels=1024, stride=2)
-        self.layer4 = MakeLayer3(block, layer_num[3], in_channels=1024, out_channels=2048, stride=2)
+        self.layer1 = MakeLayer0(block, in_channels=64, out_channels=256, stride=1)
+        self.layer2 = MakeLayer1(block, in_channels=256, out_channels=512, stride=2)
+        self.layer3 = MakeLayer2(block, in_channels=512, out_channels=1024, stride=2)
+        self.layer4 = MakeLayer3(block, in_channels=1024, out_channels=2048, stride=2)
 
         self.pool = P.ReduceMean(keep_dims=True)
         self.squeeze = P.Squeeze(axis=(2, 3))
@@ -298,4 +297,4 @@ class ResNet(nn.Cell):
 
 
 def resnet50(batch_size, num_classes):
-    return ResNet(ResidualBlock, [3, 4, 6, 3], num_classes, batch_size)
+    return ResNet(ResidualBlock, num_classes, batch_size)
diff --git a/tests/st/mem_reuse/resnet_cifar_memreuse.py b/tests/st/mem_reuse/resnet_cifar_memreuse.py
index 0ce602bde74..3a63dbbbc26 100644
--- a/tests/st/mem_reuse/resnet_cifar_memreuse.py
+++ b/tests/st/mem_reuse/resnet_cifar_memreuse.py
@@ -114,9 +114,9 @@ class CrossEntropyLoss(nn.Cell):
 
     def construct(self, logits, label):
         label = self.one_hot(label, F.shape(logits)[1], self.one, self.zero)
-        loss = self.cross_entropy(logits, label)[0]
-        loss = self.mean(loss, (-1,))
-        return loss
+        loss_func = self.cross_entropy(logits, label)[0]
+        loss_func = self.mean(loss_func, (-1,))
+        return loss_func
 
 
 if __name__ == '__main__':
@@ -146,4 +146,4 @@ if __name__ == '__main__':
         res = model.eval(eval_dataset)
         print("result: ", res)
     checker = os.path.exists("./memreuse.ir")
-    assert checker == True
+    assert checker, True
diff --git a/tests/st/mem_reuse/resnet_cifar_normal.py b/tests/st/mem_reuse/resnet_cifar_normal.py
index 1d61cb2188e..d96d016e665 100644
--- a/tests/st/mem_reuse/resnet_cifar_normal.py
+++ b/tests/st/mem_reuse/resnet_cifar_normal.py
@@ -114,9 +114,9 @@ class CrossEntropyLoss(nn.Cell):
 
     def construct(self, logits, label):
         label = self.one_hot(label, F.shape(logits)[1], self.one, self.zero)
-        loss = self.cross_entropy(logits, label)[0]
-        loss = self.mean(loss, (-1,))
-        return loss
+        loss_func = self.cross_entropy(logits, label)[0]
+        loss_func = self.mean(loss_func, (-1,))
+        return loss_func
 
 
 if __name__ == '__main__':
@@ -146,4 +146,4 @@ if __name__ == '__main__':
         res = model.eval(eval_dataset)
         print("result: ", res)
     checker = os.path.exists("./normal_memreuse.ir")
-    assert checker == True
+    assert checker, True
diff --git a/tests/st/networks/models/resnetv1_5.py b/tests/st/networks/models/resnetv1_5.py
index 6cf671d57e3..93e4cad4032 100644
--- a/tests/st/networks/models/resnetv1_5.py
+++ b/tests/st/networks/models/resnetv1_5.py
@@ -95,8 +95,7 @@ class ResidualBlock(nn.Cell):
     def __init__(self,
                  in_channels,
                  out_channels,
-                 stride=1,
-                 down_sample=False):
+                 stride=1):
         super(ResidualBlock, self).__init__()
 
         out_chls = out_channels // self.expansion
@@ -184,7 +183,7 @@ class ResidualBlockWithDown(nn.Cell):
 
 class MakeLayer0(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer0, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=1, down_sample=True)
         self.b = block(out_channels, out_channels, stride=stride)
@@ -200,7 +199,7 @@ class MakeLayer0(nn.Cell):
 
 class MakeLayer1(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer1, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -218,7 +217,7 @@ class MakeLayer1(nn.Cell):
 
 class MakeLayer2(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer2, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -240,7 +239,7 @@ class MakeLayer2(nn.Cell):
 
 class MakeLayer3(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer3, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -256,7 +255,7 @@ class MakeLayer3(nn.Cell):
 
 class ResNet(nn.Cell):
 
-    def __init__(self, block, layer_num, num_classes=100, batch_size=32):
+    def __init__(self, block, num_classes=100, batch_size=32):
         super(ResNet, self).__init__()
         self.batch_size = batch_size
         self.num_classes = num_classes
@@ -267,14 +266,10 @@ class ResNet(nn.Cell):
         self.relu = P.ReLU()
         self.maxpool = nn.MaxPool2d(kernel_size=3, stride=2, pad_mode="SAME")
 
-        self.layer1 = MakeLayer0(
-            block, layer_num[0], in_channels=64, out_channels=256, stride=1)
-        self.layer2 = MakeLayer1(
-            block, layer_num[1], in_channels=256, out_channels=512, stride=2)
-        self.layer3 = MakeLayer2(
-            block, layer_num[2], in_channels=512, out_channels=1024, stride=2)
-        self.layer4 = MakeLayer3(
-            block, layer_num[3], in_channels=1024, out_channels=2048, stride=2)
+        self.layer1 = MakeLayer0(block, in_channels=64, out_channels=256, stride=1)
+        self.layer2 = MakeLayer1(block, in_channels=256, out_channels=512, stride=2)
+        self.layer3 = MakeLayer2(block, in_channels=512, out_channels=1024, stride=2)
+        self.layer4 = MakeLayer3(block, in_channels=1024, out_channels=2048, stride=2)
 
         self.pool = P.ReduceMean(keep_dims=True)
         self.fc = fc_with_initialize(512 * block.expansion, num_classes)
@@ -298,4 +293,4 @@ class ResNet(nn.Cell):
 
 
 def resnet50(batch_size, num_classes):
-    return ResNet(ResidualBlock, [3, 4, 6, 3], num_classes, batch_size)
+    return ResNet(ResidualBlock, num_classes, batch_size)
diff --git a/tests/st/summary/test_davinci_summary.py b/tests/st/summary/test_davinci_summary.py
index 96fa2fe8994..bc93afe364a 100644
--- a/tests/st/summary/test_davinci_summary.py
+++ b/tests/st/summary/test_davinci_summary.py
@@ -18,7 +18,7 @@ import numpy as np
 from apply_momentum import ApplyMomentum
 import mindspore.context as context
 import mindspore.nn as nn
-import mindspore.nn as wrap
+from mindspore.nn import wrap
 from mindspore import Tensor, Model
 from mindspore.common.api import ms_function
 from mindspore.nn.loss import SoftmaxCrossEntropyWithLogits
diff --git a/tests/st/tbe_networks/export_geir.py b/tests/st/tbe_networks/export_geir.py
index a8589eefb6f..a4e6f572f57 100644
--- a/tests/st/tbe_networks/export_geir.py
+++ b/tests/st/tbe_networks/export_geir.py
@@ -13,12 +13,10 @@
 # limitations under the License.
 # ============================================================================
 import numpy as np
-
 from resnet_torch import resnet50
 
 from mindspore import Tensor
-from mindspore.train.serialization import save, load, _check_filedir_or_create, _chg_model_file_name_if_same_exist, \
-    _read_file_last_line, context, export
+from mindspore.train.serialization import context, export
 
 context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
 
@@ -26,6 +24,4 @@ context.set_context(mode=context.GRAPH_MODE, device_target="Ascend")
 def test_resnet50_export(batch_size=1, num_classes=5):
     input_np = np.random.uniform(0.0, 1.0, size=[batch_size, 3, 224, 224]).astype(np.float32)
     net = resnet50(batch_size, num_classes)
-    # param_dict = load_checkpoint("./resnet50-1_103.ckpt")
-    # load_param_into_net(net, param_dict)
     export(net, Tensor(input_np), file_name="./me_resnet50.pb", file_format="GEIR")
diff --git a/tests/st/tbe_networks/resnet.py b/tests/st/tbe_networks/resnet.py
index ef75b4509ef..53e47b9310f 100644
--- a/tests/st/tbe_networks/resnet.py
+++ b/tests/st/tbe_networks/resnet.py
@@ -99,8 +99,7 @@ class ResidualBlock(nn.Cell):
     def __init__(self,
                  in_channels,
                  out_channels,
-                 stride=1,
-                 down_sample=False):
+                 stride=1):
         super(ResidualBlock, self).__init__()
 
         out_chls = out_channels // self.expansion
@@ -188,7 +187,7 @@ class ResidualBlockWithDown(nn.Cell):
 
 class MakeLayer0(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer0, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=1, down_sample=True)
         self.b = block(out_channels, out_channels, stride=stride)
@@ -204,7 +203,7 @@ class MakeLayer0(nn.Cell):
 
 class MakeLayer1(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer1, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -222,7 +221,7 @@ class MakeLayer1(nn.Cell):
 
 class MakeLayer2(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer2, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -244,7 +243,7 @@ class MakeLayer2(nn.Cell):
 
 class MakeLayer3(nn.Cell):
 
-    def __init__(self, block, layer_num, in_channels, out_channels, stride):
+    def __init__(self, block, in_channels, out_channels, stride):
         super(MakeLayer3, self).__init__()
         self.a = ResidualBlockWithDown(in_channels, out_channels, stride=stride, down_sample=True)
         self.b = block(out_channels, out_channels, stride=1)
@@ -260,7 +259,7 @@ class MakeLayer3(nn.Cell):
 
 class ResNet(nn.Cell):
 
-    def __init__(self, block, layer_num, num_classes=100, batch_size=32):
+    def __init__(self, block, num_classes=100, batch_size=32):
         super(ResNet, self).__init__()
         self.batch_size = batch_size
         self.num_classes = num_classes
@@ -271,10 +270,10 @@ class ResNet(nn.Cell):
         self.relu = P.ReLU()
         self.maxpool = P.MaxPoolWithArgmax(ksize=3, strides=2, padding="SAME")
 
-        self.layer1 = MakeLayer0(block, layer_num[0], in_channels=64, out_channels=256, stride=1)
-        self.layer2 = MakeLayer1(block, layer_num[1], in_channels=256, out_channels=512, stride=2)
-        self.layer3 = MakeLayer2(block, layer_num[2], in_channels=512, out_channels=1024, stride=2)
-        self.layer4 = MakeLayer3(block, layer_num[3], in_channels=1024, out_channels=2048, stride=2)
+        self.layer1 = MakeLayer0(block, in_channels=64, out_channels=256, stride=1)
+        self.layer2 = MakeLayer1(block, in_channels=256, out_channels=512, stride=2)
+        self.layer3 = MakeLayer2(block, in_channels=512, out_channels=1024, stride=2)
+        self.layer4 = MakeLayer3(block, in_channels=1024, out_channels=2048, stride=2)
 
         self.pool = P.ReduceMean(keep_dims=True)
         self.squeeze = P.Squeeze(axis=(2, 3))
@@ -298,4 +297,4 @@ class ResNet(nn.Cell):
 
 
 def resnet50(batch_size, num_classes):
-    return ResNet(ResidualBlock, [3, 4, 6, 3], num_classes, batch_size)
+    return ResNet(ResidualBlock, num_classes, batch_size)
diff --git a/tests/st/tbe_networks/resnet_cifar.py b/tests/st/tbe_networks/resnet_cifar.py
index 39858d4f332..6b3b75a63c7 100644
--- a/tests/st/tbe_networks/resnet_cifar.py
+++ b/tests/st/tbe_networks/resnet_cifar.py
@@ -116,9 +116,9 @@ class CrossEntropyLoss(nn.Cell):
 
     def construct(self, logits, label):
         label = self.one_hot(label, F.shape(logits)[1], self.one, self.zero)
-        loss = self.cross_entropy(logits, label)[0]
-        loss = self.mean(loss, (-1,))
-        return loss
+        loss_func = self.cross_entropy(logits, label)[0]
+        loss_func = self.mean(loss_func, (-1,))
+        return loss_func
 
 
 if __name__ == '__main__':
diff --git a/tests/st/tbe_networks/test_resnet_cifar_1p.py b/tests/st/tbe_networks/test_resnet_cifar_1p.py
index 92954998c4c..45895185eb4 100644
--- a/tests/st/tbe_networks/test_resnet_cifar_1p.py
+++ b/tests/st/tbe_networks/test_resnet_cifar_1p.py
@@ -15,7 +15,7 @@
 
 import os
 import random
-import time
+
 import pytest
 import numpy as np
 from resnet import resnet50
@@ -30,9 +30,8 @@ from mindspore import Tensor
 from mindspore import context
 from mindspore.nn.optim.momentum import Momentum
 from mindspore.ops import operations as P
-from mindspore.train.callback import ModelCheckpoint, CheckpointConfig, Callback
+from mindspore.train.callback import Callback
 from mindspore.train.model import Model
-from mindspore.train.serialization import load_checkpoint, load_param_into_net
 
 random.seed(1)
 np.random.seed(1)
diff --git a/tests/st/tbe_networks/test_resnet_cifar_8p.py b/tests/st/tbe_networks/test_resnet_cifar_8p.py
index 63c82a8bd0e..07a35f1591f 100644
--- a/tests/st/tbe_networks/test_resnet_cifar_8p.py
+++ b/tests/st/tbe_networks/test_resnet_cifar_8p.py
@@ -15,11 +15,10 @@
 
 import os
 import random
+from multiprocessing import Process, Queue
 import numpy as np
 import pytest
-from multiprocessing import Process, Queue
 from resnet import resnet50
-
 import mindspore.common.dtype as mstype
 import mindspore.dataset as ds
 import mindspore.dataset.transforms.c_transforms as C