diff --git a/cmake/make_resource.py b/cmake/make_resource.py
index 09a2ca877dd54243428ee2c730944f75ceeeaa30..936aefd4e6e6921211e0eb1ada89cc47a220c28b 100644
--- a/cmake/make_resource.py
+++ b/cmake/make_resource.py
@@ -20,6 +20,7 @@ res = sys.argv[1]
 out = sys.argv[2]
 var = re.sub(r'[ .-]', '_', os.path.basename(res))
 
-open(out, "w").write("const unsigned char " + var + "[] = {" + ",".join([
-    "0x%02x" % ord(c) for c in open(res).read()
-]) + ",0};\n" + "const unsigned " + var + "_size = sizeof(" + var + ");\n")
+open(out, "w").write("const unsigned char " + var + "[] = {" +
+                     ",".join(["0x%02x" % ord(c)
+                               for c in open(res).read()]) + ",0};\n" +
+                     "const unsigned " + var + "_size = sizeof(" + var + ");\n")
diff --git a/paddle/fluid/eager/auto_code_generator/generator/codegen_utils.py b/paddle/fluid/eager/auto_code_generator/generator/codegen_utils.py
index 2dc62ff349a73a5b59b6de47fb969f9670f0d649..2e231645becbeacb0d9b8b98a31c1107edbeb9ae 100644
--- a/paddle/fluid/eager/auto_code_generator/generator/codegen_utils.py
+++ b/paddle/fluid/eager/auto_code_generator/generator/codegen_utils.py
@@ -12,11 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
 import yaml
 import re
-import argparse
-import os
 
 ########################
 ### Global Variables ###
diff --git a/paddle/fluid/eager/auto_code_generator/generator/eager_gen.py b/paddle/fluid/eager/auto_code_generator/generator/eager_gen.py
index 308e0348a21afb355248ae1ee5e6dff3d5a7814d..7063524b4d6249c3be0d90413a69a53509873a87 100644
--- a/paddle/fluid/eager/auto_code_generator/generator/eager_gen.py
+++ b/paddle/fluid/eager/auto_code_generator/generator/eager_gen.py
@@ -12,23 +12,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import yaml
 import re
 import argparse
 import os
-import logging
 from codegen_utils import core_ops_returns_info, core_ops_args_info, core_ops_args_type_info
-from codegen_utils import yaml_types_mapping
-from codegen_utils import ReadFwdFile, ReadBwdFile
-from codegen_utils import FindGradName, FindForwardName, GetSavedName, GetGradNodeName
+from codegen_utils import ReadBwdFile
+from codegen_utils import FindForwardName, GetGradNodeName, GetSavedName
 from codegen_utils import IsPlainTensorType, IsVectorTensorType
 from codegen_utils import GetConstReference, RemoveConstAndReference
-from codegen_utils import GetDygraphForwardFunctionName, GetIntermediateAPIFunctionName, GetDygraphLogName
+from codegen_utils import GetDygraphForwardFunctionName, GetIntermediateAPIFunctionName
 from codegen_utils import GetAutoGradMetaName, GetAutoGradMetaVectorName
-from codegen_utils import RemoveSpecialSymbolsInName, RecoverBaseNameOfInplaceFunction
 from codegen_utils import GetInplacedFunctionName
-from codegen_utils import ParseYamlArgs, ParseYamlReturns, ParseYamlForwardFromBackward
-from codegen_utils import ParseYamlForward, ParseYamlBackward
+from codegen_utils import ParseYamlForwardFromBackward
+from codegen_utils import ParseYamlBackward
 from codegen_utils import ParseYamlInplaceInfo
 from codegen_utils import FunctionGeneratorBase, GeneratorBase
 from codegen_utils import ops_to_fill_zero_for_empty_grads
diff --git a/paddle/fluid/eager/auto_code_generator/generator/python_c_gen.py b/paddle/fluid/eager/auto_code_generator/generator/python_c_gen.py
index aba334158a13628e56b19f011c55ee60c9bc493b..5aac3574ba7723aa63780d6ba1ba5422ef31c9a4 100644
--- a/paddle/fluid/eager/auto_code_generator/generator/python_c_gen.py
+++ b/paddle/fluid/eager/auto_code_generator/generator/python_c_gen.py
@@ -14,11 +14,9 @@
 
 import os
 import argparse
-import logging
 from codegen_utils import FunctionGeneratorBase, GeneratorBase
-from codegen_utils import yaml_types_mapping
-from codegen_utils import ReadFwdFile, IsVectorTensorType, GetForwardFunctionName
-from codegen_utils import ParseYamlForward, GetInplacedFunctionName
+from codegen_utils import GetForwardFunctionName, IsVectorTensorType
+from codegen_utils import GetInplacedFunctionName
 
 ###########################
 ## Global Configurations ##
diff --git a/paddle/fluid/inference/api/demo_ci/untar_model.py b/paddle/fluid/inference/api/demo_ci/untar_model.py
index ed56a4fc0377ad28f888ed68ae4e49de2fbe6d1f..50c12aa28756d98965f26d08b0e4bca46b0d58f1 100644
--- a/paddle/fluid/inference/api/demo_ci/untar_model.py
+++ b/paddle/fluid/inference/api/demo_ci/untar_model.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import tarfile, os
+import tarfile
 import sys
 
 
diff --git a/paddle/fluid/inference/tests/api/full_ILSVRC2012_val_preprocess.py b/paddle/fluid/inference/tests/api/full_ILSVRC2012_val_preprocess.py
index adb6aa4d75344d767ce44019f3c1162956087210..5cda10f873cd3eb24f7520782253ca789bd198d5 100644
--- a/paddle/fluid/inference/tests/api/full_ILSVRC2012_val_preprocess.py
+++ b/paddle/fluid/inference/tests/api/full_ILSVRC2012_val_preprocess.py
@@ -10,18 +10,11 @@
 # without warranties or conditions of any kind, either express or implied.
 # see the license for the specific language governing permissions and
 # limitations under the license.
-import hashlib
-import unittest
 import os
 import io
 import numpy as np
-import time
 import sys
-import random
-import functools
-import contextlib
 from PIL import Image
-import math
 from paddle.dataset.common import download
 import tarfile
 import argparse
@@ -163,12 +156,12 @@ def run_convert():
     retry = 0
     try_limit = 3
 
-    while not (os.path.exists(output_file) and
-               os.path.getsize(output_file) == FULL_SIZE_BYTES):
+    while not (os.path.exists(output_file)
+               and os.path.getsize(output_file) == FULL_SIZE_BYTES):
         if os.path.exists(output_file):
             sys.stderr.write(
-                "\n\nThe existing binary file[{}] is broken. Start to generate new one...\n\n".
-                format(output_file))
+                "\n\nThe existing binary file[{}] is broken. Start to generate new one...\n\n"
+                .format(output_file))
             os.remove(output_file)
         if retry < try_limit:
             retry = retry + 1
@@ -204,15 +197,16 @@ def convert_Imagenet_local2bin(args):
                 img = Image.open(img_path)
                 img = process_image(img)
                 np_img = np.array(img)
-                of.seek(SIZE_INT64 + SIZE_FLOAT32 * DATA_DIM * DATA_DIM * 3 *
-                        idx)
+                of.seek(SIZE_INT64 +
+                        SIZE_FLOAT32 * DATA_DIM * DATA_DIM * 3 * idx)
                 of.write(np_img.astype('float32').tobytes())
 
                 #save label(int64_t) to file
                 label_int = (int)(label)
                 np_label = np.array(label_int)
-                of.seek(SIZE_INT64 + SIZE_FLOAT32 * DATA_DIM * DATA_DIM * 3 *
-                        num_images + idx * SIZE_INT64)
+                of.seek(SIZE_INT64 +
+                        SIZE_FLOAT32 * DATA_DIM * DATA_DIM * 3 * num_images +
+                        idx * SIZE_INT64)
                 of.write(np_label.astype('int64').tobytes())
 
         # The bin file should contain
@@ -221,39 +215,41 @@ def convert_Imagenet_local2bin(args):
         target_size = SIZE_INT64 + num_images * 3 * args.data_dim * args.data_dim * SIZE_FLOAT32 + num_images * SIZE_INT64
         if (os.path.getsize(bin_file_path) == target_size):
             print(
-                "Success! The user data output binary file can be found at: {0}".
-                format(bin_file_path))
+                "Success! The user data output binary file can be found at: {0}"
+                .format(bin_file_path))
         else:
             print("Conversion failed!")
 
 
 def main_preprocess_Imagenet(args):
     parser = argparse.ArgumentParser(
-        description="Convert the full Imagenet val set or local data to binary file.",
+        description=
+        "Convert the full Imagenet val set or local data to binary file.",
         usage=None,
         add_help=True)
     parser.add_argument(
         '--local',
         action="store_true",
         help="If used, user need to set --data_dir and then convert file")
-    parser.add_argument(
-        "--data_dir", default="", type=str, help="Dataset root directory")
+    parser.add_argument("--data_dir",
+                        default="",
+                        type=str,
+                        help="Dataset root directory")
     parser.add_argument(
         "--label_list",
         type=str,
         default="val_list.txt",
-        help="List of object labels with same sequence as denoted in the annotation file"
+        help=
+        "List of object labels with same sequence as denoted in the annotation file"
     )
-    parser.add_argument(
-        "--output_file",
-        type=str,
-        default="imagenet_small.bin",
-        help="File path of the output binary file")
-    parser.add_argument(
-        "--data_dim",
-        type=int,
-        default=DATA_DIM,
-        help="Image preprocess with data_dim width and height")
+    parser.add_argument("--output_file",
+                        type=str,
+                        default="imagenet_small.bin",
+                        help="File path of the output binary file")
+    parser.add_argument("--data_dim",
+                        type=int,
+                        default=DATA_DIM,
+                        help="Image preprocess with data_dim width and height")
 
     args = parser.parse_args()
     if args.local:
diff --git a/paddle/fluid/inference/tests/api/test_detection_dataset_preprocess.py b/paddle/fluid/inference/tests/api/test_detection_dataset_preprocess.py
index 698a85afe92df16b4162a8e075ee967ce7d0a0c1..57920a8b27065a66a2399d741298f1570cefa0a4 100644
--- a/paddle/fluid/inference/tests/api/test_detection_dataset_preprocess.py
+++ b/paddle/fluid/inference/tests/api/test_detection_dataset_preprocess.py
@@ -12,10 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from full_pascalvoc_test_preprocess import main_pascalvoc_preprocess
-import numpy as np
-import paddle.fluid.core as core
-import paddle.fluid as fluid
 import unittest
 import os
 
diff --git a/paddle/infrt/tests/models/abs_model.py b/paddle/infrt/tests/models/abs_model.py
index 185aade58aa99e1da9df783d8cc4a052480c3607..c94338be7788bf4c58b042b9275579cca01d0f48 100644
--- a/paddle/infrt/tests/models/abs_model.py
+++ b/paddle/infrt/tests/models/abs_model.py
@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import paddle
-from paddle.nn import Layer
 from paddle.static import InputSpec
 from paddle.jit import to_static
 import sys
diff --git a/paddle/infrt/tests/models/efficientnet-b4/net/utils.py b/paddle/infrt/tests/models/efficientnet-b4/net/utils.py
index f4a39b478823e6969c3eb47387f65ce3b30039fa..62caf759ad3caae1b1acb9704a76e41392f7e43a 100644
--- a/paddle/infrt/tests/models/efficientnet-b4/net/utils.py
+++ b/paddle/infrt/tests/models/efficientnet-b4/net/utils.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import re
 import math
 from functools import partial
diff --git a/paddle/phi/api/yaml/generator/api_gen.py b/paddle/phi/api/yaml/generator/api_gen.py
index 3add9ed13b744fedb51d07684675997082b9e612..9cfc54a4c58d5e30eda06b8296a1aa38f73455e3 100644
--- a/paddle/phi/api/yaml/generator/api_gen.py
+++ b/paddle/phi/api/yaml/generator/api_gen.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
 import re
diff --git a/paddle/phi/api/yaml/generator/backward_api_gen.py b/paddle/phi/api/yaml/generator/backward_api_gen.py
index 1a8b9cc4d390b0e7293a60ec0033f89fe83ea8ea..16052e819377482e8bbe1ef9109e8f2616f521f9 100644
--- a/paddle/phi/api/yaml/generator/backward_api_gen.py
+++ b/paddle/phi/api/yaml/generator/backward_api_gen.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
 import re
diff --git a/paddle/phi/api/yaml/generator/filters.py b/paddle/phi/api/yaml/generator/filters.py
index de9fdf25e9834cc3292fd9e76684a80c79cb9430..30af0dee34dabd43e4c7a04557dc5cb1311f6467 100644
--- a/paddle/phi/api/yaml/generator/filters.py
+++ b/paddle/phi/api/yaml/generator/filters.py
@@ -12,17 +12,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from typing import List, Dict
 import itertools
 import re
 
-from jinja2.filters import do_xmlattr
 from type_mapping import (input_types_map, optional_input_types_map,
                           attr_types_map, opmaker_attr_types_map,
                           output_type_map)
 from type_mapping import (dense_input_types_map, dense_optional_input_types_map,
-                          dense_output_types_map, sr_input_types_map,
-                          sr_optional_input_types_map, sr_output_types_map,
+                          dense_output_types_map, sr_output_types_map,
                           phi_attr_types_map)
 
 
diff --git a/paddle/phi/api/yaml/generator/generate_op.py b/paddle/phi/api/yaml/generator/generate_op.py
index 5fa3be685e487fae2ee33be818a570b637290e97..5b8269d6cf3d548f69aab7f83d26ec65ec79027d 100644
--- a/paddle/phi/api/yaml/generator/generate_op.py
+++ b/paddle/phi/api/yaml/generator/generate_op.py
@@ -14,8 +14,6 @@
 
 import argparse
 import os
-import re
-from itertools import chain
 from pathlib import Path
 
 import yaml
diff --git a/paddle/phi/api/yaml/generator/intermediate_api_gen.py b/paddle/phi/api/yaml/generator/intermediate_api_gen.py
index ce615dcb2488cd37a62d6758fd07f051c1882edb..d9562e189e867c95923c8148c009b237dcc61b80 100644
--- a/paddle/phi/api/yaml/generator/intermediate_api_gen.py
+++ b/paddle/phi/api/yaml/generator/intermediate_api_gen.py
@@ -12,10 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
-import re
 
 from api_gen import ForwardAPI
 from sparse_api_gen import SparseAPI
diff --git a/paddle/phi/api/yaml/generator/ops_extra_info_gen.py b/paddle/phi/api/yaml/generator/ops_extra_info_gen.py
index b862d8bfe0a85bd5908d7294e85f95a80737dd4f..85f1d1657557eae08efd4cfaac311b3d31279f55 100644
--- a/paddle/phi/api/yaml/generator/ops_extra_info_gen.py
+++ b/paddle/phi/api/yaml/generator/ops_extra_info_gen.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import re
 import argparse
diff --git a/paddle/phi/api/yaml/generator/parse_api.py b/paddle/phi/api/yaml/generator/parse_api.py
index 91fd44b7093393596e98677f65ba91fa6c32ed60..4536c86653821c24bc279d8045cab6ecdcf6457c 100644
--- a/paddle/phi/api/yaml/generator/parse_api.py
+++ b/paddle/phi/api/yaml/generator/parse_api.py
@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import argparse
-from pathlib import Path
 
 import yaml
 
diff --git a/paddle/phi/api/yaml/generator/parse_utils.py b/paddle/phi/api/yaml/generator/parse_utils.py
index f617f166dd13b5e1a23ab489beb6d6651a21d0d5..fed5683b3383beb468e4cf4d2b79f14dee300261 100644
--- a/paddle/phi/api/yaml/generator/parse_utils.py
+++ b/paddle/phi/api/yaml/generator/parse_utils.py
@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import re
-import yaml
 from copy import copy
 from typing import Dict, Any, List, Tuple
 from tests import is_attr, is_input, is_output, is_vec
diff --git a/paddle/phi/api/yaml/generator/sparse_api_gen.py b/paddle/phi/api/yaml/generator/sparse_api_gen.py
index 9123cf7fff5843438a5f9274a5cab0d5099b9d26..4236862e347b320d7f3fe3ff80f5720a16f014a5 100644
--- a/paddle/phi/api/yaml/generator/sparse_api_gen.py
+++ b/paddle/phi/api/yaml/generator/sparse_api_gen.py
@@ -12,10 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
-import re
 
 from api_gen import ForwardAPI
 from api_base import PREFIX_TENSOR_NAME
diff --git a/paddle/phi/api/yaml/generator/sparse_bw_api_gen.py b/paddle/phi/api/yaml/generator/sparse_bw_api_gen.py
index 83569d69510c3b55ae3984a8f39079869b669eab..819e217c65dafca1fe73ee395e0ccab82b2354f9 100644
--- a/paddle/phi/api/yaml/generator/sparse_bw_api_gen.py
+++ b/paddle/phi/api/yaml/generator/sparse_bw_api_gen.py
@@ -12,10 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
-import re
 
 from sparse_api_gen import SparseAPI
 from backward_api_gen import BackwardAPI
diff --git a/paddle/phi/api/yaml/generator/strings_api_gen.py b/paddle/phi/api/yaml/generator/strings_api_gen.py
index 94c8958035854ef96c7e2d9c91492d65e04f9502..b34075b681b27ac0b828f337ede9744d708f2610 100644
--- a/paddle/phi/api/yaml/generator/strings_api_gen.py
+++ b/paddle/phi/api/yaml/generator/strings_api_gen.py
@@ -12,10 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
-import re
 
 from api_gen import ForwardAPI
 
diff --git a/paddle/phi/api/yaml/generator/wrapped_infermeta_gen.py b/paddle/phi/api/yaml/generator/wrapped_infermeta_gen.py
index facdd999fdf576a3c4b8ebfd319ebd761e9440ef..5a120ad08b3ec453614cb64c24ec3ab88084cc08 100644
--- a/paddle/phi/api/yaml/generator/wrapped_infermeta_gen.py
+++ b/paddle/phi/api/yaml/generator/wrapped_infermeta_gen.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import yaml
 import argparse
 
diff --git a/paddle/scripts/conda_build.py b/paddle/scripts/conda_build.py
index a514c8b5231ae3b338d9765630faf67ac78603da..f4411aa9fc794278422a697e5f3abe1d183e776d 100644
--- a/paddle/scripts/conda_build.py
+++ b/paddle/scripts/conda_build.py
@@ -16,10 +16,8 @@
 
 #
 import platform
-from sys import argv
 import argparse
 import os
-import time
 
 
 def parse_args():
diff --git a/r/example/mobilenet.py b/r/example/mobilenet.py
index deaa6582cd2d853055bc660422129cec789155b1..96deb0aaf5fd08d04300ec2dc1d857b4f9e53e85 100755
--- a/r/example/mobilenet.py
+++ b/r/example/mobilenet.py
@@ -16,10 +16,8 @@
 
 # pylint: skip-file
 
-import functools
 import numpy as np
 from paddle.fluid.core import AnalysisConfig
-from paddle.fluid.core import AnalysisPredictor
 from paddle.fluid.core import create_paddle_predictor
 
 
diff --git a/tools/CrossStackProfiler/CspChromeTraceFormatter.py b/tools/CrossStackProfiler/CspChromeTraceFormatter.py
index 811e6020267e9e59ed93bcc0a779ec2cba6bd919..ec5dba54b002feff51c9c7763b56af4a79b3fa96 100755
--- a/tools/CrossStackProfiler/CspChromeTraceFormatter.py
+++ b/tools/CrossStackProfiler/CspChromeTraceFormatter.py
@@ -12,18 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import argparse
 import json
-import six
-import sys
-import re
-import os
-import glob
-import unittest
-import pandas
-import tempfile
-import platform
-import pandas as pd
 
 
 class ChromeTraceFormatter(object):
diff --git a/tools/CrossStackProfiler/CspFileReader.py b/tools/CrossStackProfiler/CspFileReader.py
index 32281013ab68dc0b0541884259ebb7a375f1184e..0825842fa1a11ba41bbc5f5f1ba60949bacf4986 100755
--- a/tools/CrossStackProfiler/CspFileReader.py
+++ b/tools/CrossStackProfiler/CspFileReader.py
@@ -17,8 +17,7 @@ import time
 import json
 import glob
 import logging
-import pandas as pd
-from multiprocessing import Process, Lock
+from multiprocessing import Lock
 """ Some terms to clarify the code
     in most case, one or more paremeters may be set as input args for a class or a function
     in form of single variable or k-v dict
diff --git a/tools/CrossStackProfiler/CspReporter.py b/tools/CrossStackProfiler/CspReporter.py
index dc12f725bb4472af9993b2b0a055c5581b9c365c..2e1e1f2c6380cf0ae0beb8aef63e5adc7c7b67e6 100755
--- a/tools/CrossStackProfiler/CspReporter.py
+++ b/tools/CrossStackProfiler/CspReporter.py
@@ -14,21 +14,16 @@
 
 import os
 import glob
-import logging
 import argparse
-import multiprocessing
 
-import pandas as pd
 from multiprocessing import Process
 
-from NetFileReader import netFileReader
 from DCGMFileReader import dcgmFileReader
 from ProfileFileReader import profileFileReader
 
 from CspFileReader import getLogger
 from CspFileReader import TIME_PATH, DCGM_PATH, NET_PATH, PROFILE_PATH
-from CspFileReader import NETINFO_TRACE_NUM, DCGMINFO_TRACE_NUM, PIPELINEINFO_TRACE_NUM
-from CspFileReader import FILEORGANIZEFORM_BYRANK, FILEORGANIZEFORM_BYTRAINER, FILEORGANIZEFORM_BYOTHER, FILEORGANIZEFORM
+from CspFileReader import FILEORGANIZEFORM_BYRANK, FILEORGANIZEFORM_BYTRAINER
 
 
 def get_argparse():
diff --git a/tools/CrossStackProfiler/DCGMFileReader.py b/tools/CrossStackProfiler/DCGMFileReader.py
index 94daeb607fee416d4692302041d8d8c134635634..1285ce388c150fe2b927c2b0761fbdc11d87e596 100755
--- a/tools/CrossStackProfiler/DCGMFileReader.py
+++ b/tools/CrossStackProfiler/DCGMFileReader.py
@@ -14,23 +14,17 @@
 
 import os
 import re
-import json
-import glob
 import logging
 import tempfile
-import argparse
 import pandas as pd
 import multiprocessing
 from multiprocessing import Process
 
-from CspChromeTraceFormatter import ChromeTraceFormatter
-
 from CspFileReader import FileReader
 from CspFileReader import getLogger
 from CspFileReader import dcgmMetricParameterMap
-from CspFileReader import TIME_PATH, DCGM_PATH, NET_PATH, PROFILE_PATH
-from CspFileReader import NETINFO_TRACE_NUM, DCGMINFO_TRACE_NUM, PIPELINEINFO_TRACE_NUM
-from CspFileReader import FILEORGANIZEFORM_BYRANK, FILEORGANIZEFORM_BYTRAINER, FILEORGANIZEFORM_BYOTHER, FILEORGANIZEFORM
+from CspFileReader import PIPELINEINFO_TRACE_NUM
+from CspFileReader import FILEORGANIZEFORM_BYTRAINER
 
 
 class dcgmFileReader(FileReader):
diff --git a/tools/CrossStackProfiler/NetFileReader.py b/tools/CrossStackProfiler/NetFileReader.py
index 52d4064649134f02e7fb57bc4144f0ae02bc782d..199e3ba8d4d87fa7cfd8698ae62dbd3a84e5a59d 100755
--- a/tools/CrossStackProfiler/NetFileReader.py
+++ b/tools/CrossStackProfiler/NetFileReader.py
@@ -12,22 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import json
-import glob
-import logging
-import pandas as pd
 import multiprocessing
 
 from multiprocessing import Process
 
-from CspChromeTraceFormatter import ChromeTraceFormatter
-
 from CspFileReader import FileReader
 from CspFileReader import getLogger
-from CspFileReader import TIME_PATH, DCGM_PATH, NET_PATH, PROFILE_PATH
-from CspFileReader import NETINFO_TRACE_NUM, DCGMINFO_TRACE_NUM, PIPELINEINFO_TRACE_NUM
-from CspFileReader import FILEORGANIZEFORM_BYRANK, FILEORGANIZEFORM_BYTRAINER, FILEORGANIZEFORM_BYOTHER, FILEORGANIZEFORM
+from CspFileReader import PIPELINEINFO_TRACE_NUM
+from CspFileReader import FILEORGANIZEFORM_BYTRAINER
 
 
 class netFileReader(FileReader):
diff --git a/tools/CrossStackProfiler/ProfileFileReader.py b/tools/CrossStackProfiler/ProfileFileReader.py
index 955b2248a089080ba6f99342e5b7125e31716e7e..f9425248be467e20e5207c87fcd01e76dac291bc 100755
--- a/tools/CrossStackProfiler/ProfileFileReader.py
+++ b/tools/CrossStackProfiler/ProfileFileReader.py
@@ -12,26 +12,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import six
-import glob
 import json
-import logging
-import argparse
-import pandas as pd
 import multiprocessing
 from multiprocessing import Process
 
-import google.protobuf.text_format as text_format
 import paddle.fluid.proto.profiler.profiler_pb2 as profiler_pb2
 
 from CspChromeTraceFormatter import ChromeTraceFormatter
 
 from CspFileReader import FileReader
 from CspFileReader import getLogger
-from CspFileReader import TIME_PATH, DCGM_PATH, NET_PATH, PROFILE_PATH
 from CspFileReader import NETINFO_TRACE_NUM, DCGMINFO_TRACE_NUM, PIPELINEINFO_TRACE_NUM
-from CspFileReader import FILEORGANIZEFORM_BYRANK, FILEORGANIZEFORM_BYTRAINER, FILEORGANIZEFORM_BYOTHER, FILEORGANIZEFORM
+from CspFileReader import FILEORGANIZEFORM_BYRANK
 
 
 class profileFileReader(FileReader):
diff --git a/tools/analysisPyXml.py b/tools/analysisPyXml.py
index 9d70a159118383c387740ed82003571cd41f6007..bea07e36335115fde5948c33bee9f8c2c9b76c7a 100644
--- a/tools/analysisPyXml.py
+++ b/tools/analysisPyXml.py
@@ -15,11 +15,7 @@
 import commands
 from xml.etree import ElementTree
 import re
-import time
-import queue
-import threading
 import os
-import json
 import sys
 
 
diff --git a/tools/check_api_source_without_core_ops.py b/tools/check_api_source_without_core_ops.py
index 4f6785b6a4d55096a1dbe7ac66c485126cdd56b5..797934a5a3568e7ba1be3e20528a2fa37216518c 100644
--- a/tools/check_api_source_without_core_ops.py
+++ b/tools/check_api_source_without_core_ops.py
@@ -14,8 +14,6 @@
 
 import difflib
 import sys
-import importlib
-import os
 import count_api_without_core_ops
 
 with open(sys.argv[1], 'r') as f:
diff --git a/tools/check_ut.py b/tools/check_ut.py
index a9172799225476d75428f3582214ab2231b7cb39..0b1211f1e654dba0295d7db9c8bde4957c6d9dce 100644
--- a/tools/check_ut.py
+++ b/tools/check_ut.py
@@ -15,7 +15,6 @@
 """ Get pull requests. """
 
 import os
-import time
 import os.path
 from github import Github
 
diff --git a/tools/codestyle/docstring_checker.py b/tools/codestyle/docstring_checker.py
index c5a9d852691080714bf91863dcb18b2e7b1a682f..18083d1fab104e775c07e79d1053337b9b2c33c0 100644
--- a/tools/codestyle/docstring_checker.py
+++ b/tools/codestyle/docstring_checker.py
@@ -13,10 +13,9 @@
 # limitations under the License.
 """DocstringChecker is used to check python doc string's style."""
 
-import six
 import astroid
 
-from pylint.checkers import BaseChecker, utils
+from pylint.checkers import BaseChecker
 from pylint.interfaces import IAstroidChecker
 
 from collections import defaultdict
diff --git a/tools/codestyle/test_docstring_checker.py b/tools/codestyle/test_docstring_checker.py
index 8c6c7f8de53632653679fc74073d787f36d9f54c..61b236b6b7d6378b91d0f4b68972ea9f64260fc3 100644
--- a/tools/codestyle/test_docstring_checker.py
+++ b/tools/codestyle/test_docstring_checker.py
@@ -15,8 +15,6 @@
 import docstring_checker
 import pylint.testutils
 import astroid
-import pytest
-import sys
 
 
 class TestDocstring(pylint.testutils.CheckerTestCase):
diff --git a/tools/count_api_without_core_ops.py b/tools/count_api_without_core_ops.py
index 4cb6262cac38abd1384745ded13dd04c5fe3b286..d75578d610d8824ecb99c1a8f15e82af34298a96 100644
--- a/tools/count_api_without_core_ops.py
+++ b/tools/count_api_without_core_ops.py
@@ -16,11 +16,7 @@ import importlib
 import inspect
 import collections
 import sys
-import pydoc
 import hashlib
-import functools
-import platform
-from paddle import _C_ops, _legacy_C_ops
 
 __all__ = [
     'get_apis_with_and_without_core_ops',
diff --git a/tools/diff_unittest.py b/tools/diff_unittest.py
index 0bd5c2cf96a94416ded1fb0fddf35be6bf1ce9e9..7e40961e663bfe4374bada6a327e2a937e9faa40 100644
--- a/tools/diff_unittest.py
+++ b/tools/diff_unittest.py
@@ -14,7 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import difflib
 import sys
 
 try:
diff --git a/tools/externalError/spider.py b/tools/externalError/spider.py
index 520561d299b9d31006fcd7c4cf74cf0dfe607119..d0f9f48c89ff23a8430feeb039ea667d04a6f8d9 100644
--- a/tools/externalError/spider.py
+++ b/tools/externalError/spider.py
@@ -15,8 +15,6 @@
 import ssl
 import re
 import urllib.request
-import json
-import collections
 import sys
 import getopt
 import external_error_pb2
diff --git a/tools/final_ut_parallel_rule.py b/tools/final_ut_parallel_rule.py
index 5f091219b1fc008d0c9b7638136b422422d8ef28..a178bc2bbd7f511953ad4bbc4520555ac328c23a 100644
--- a/tools/final_ut_parallel_rule.py
+++ b/tools/final_ut_parallel_rule.py
@@ -15,10 +15,7 @@
 # limitations under the License.
 
 import os
-import time
 import json
-import datetime
-import codecs
 import sys
 
 
diff --git a/tools/get_pr_ut.py b/tools/get_pr_ut.py
index c964f12a77e07b9330de183d0d1f092801c225ae..f54f153eb434510f7ffb6e9cb9a633d79099902f 100644
--- a/tools/get_pr_ut.py
+++ b/tools/get_pr_ut.py
@@ -16,7 +16,6 @@
 import os
 import json
 import re
-import sys
 import time
 import subprocess
 import requests
diff --git a/tools/get_single_test_cov.py b/tools/get_single_test_cov.py
index cf670f87750fa255852ebf8a72c9677016aba8df..9fe6554ee6e32db36958eebad7d703663fd03aa7 100644
--- a/tools/get_single_test_cov.py
+++ b/tools/get_single_test_cov.py
@@ -13,8 +13,6 @@
 # limitations under the License.
 
 import os
-import json
-import time
 import sys
 import re
 
diff --git a/tools/get_ut_file_map.py b/tools/get_ut_file_map.py
index 7011cc193aabcda99bb9214084e00c06898a9b56..220bafa7e5b0a72043ec35ec0833334b2419c842 100644
--- a/tools/get_ut_file_map.py
+++ b/tools/get_ut_file_map.py
@@ -14,7 +14,6 @@
 
 import os
 import sys
-import re
 import json
 
 
diff --git a/tools/handle_h_cu_file.py b/tools/handle_h_cu_file.py
index 389b460a791b963225f43c6904c8e9f7c0be69a4..2dfa014cf95a00513640a04c01323555fea4b826 100644
--- a/tools/handle_h_cu_file.py
+++ b/tools/handle_h_cu_file.py
@@ -15,7 +15,6 @@
 import queue
 import threading
 import os
-import json
 import time
 import sys
 
diff --git a/tools/infrt/fake_models/multi_fc.py b/tools/infrt/fake_models/multi_fc.py
index 7149c8d022afd60217f0ba7b0e0d642acf2afa01..31b6efd8dcb1159602cbfcf73f4ca83b8eb808bf 100644
--- a/tools/infrt/fake_models/multi_fc.py
+++ b/tools/infrt/fake_models/multi_fc.py
@@ -14,9 +14,6 @@
 """
 A fake model with multiple FC layers to test CINN on a more complex model.
 """
-import numpy
-import sys, os
-import numpy as np
 import paddle
 import paddle.fluid as fluid
 
diff --git a/tools/infrt/generate_phi_kernel_dialect.py b/tools/infrt/generate_phi_kernel_dialect.py
index 379525c1a7ad7c4ca68aaee8e0f9bd2c604df9d1..cde7f44674c993e8e1a1fbadba9219f5ec0ee326 100644
--- a/tools/infrt/generate_phi_kernel_dialect.py
+++ b/tools/infrt/generate_phi_kernel_dialect.py
@@ -14,7 +14,6 @@
 
 import json
 import yaml
-import sys
 import os
 from get_compat_kernel_signature import get_compat_kernels_info
 
diff --git a/tools/infrt/get_compat_kernel_signature.py b/tools/infrt/get_compat_kernel_signature.py
index 1ac638aea89225a4d5e153476a1a18d8611669a1..12e728598024be235f413ded0e0c8c944edb65ba 100644
--- a/tools/infrt/get_compat_kernel_signature.py
+++ b/tools/infrt/get_compat_kernel_signature.py
@@ -13,8 +13,6 @@
 # limitations under the License.
 
 import os
-import re
-import json
 
 skip_list = ["adam_sig.cc", "adamw_sig.cc"]
 
diff --git a/tools/infrt/get_phi_kernel_info.py b/tools/infrt/get_phi_kernel_info.py
index 6309197a10f4c7fae8f92dc3f3b9884aa83a41e1..af73432a7975655b774548859beb29555f676276 100644
--- a/tools/infrt/get_phi_kernel_info.py
+++ b/tools/infrt/get_phi_kernel_info.py
@@ -17,7 +17,7 @@
 import argparse
 import json
 import yaml
-from typing import List, Dict, Any
+from typing import Dict, List
 
 skipped_phi_api_list_file = "/tools/infrt/skipped_phi_api.json"
 api_yaml_file = "/paddle/phi/api/yaml/api.yaml"
diff --git a/tools/infrt/print_kernel_pass_info.py b/tools/infrt/print_kernel_pass_info.py
index d3673e9c907f04140b4f3f5743b5133de6ffc570..1e84f3de86f4a6df56587f296945c8e0840f35b8 100644
--- a/tools/infrt/print_kernel_pass_info.py
+++ b/tools/infrt/print_kernel_pass_info.py
@@ -14,7 +14,6 @@
 
 import os
 import re
-import json
 
 skip_list = []
 
diff --git a/tools/parallel_UT_rule.py b/tools/parallel_UT_rule.py
index 5b51315e234165883659aeaade34faffa8bd1200..1b5e7c59a42e74bdfd58ec3c846adf84b92eaf5e 100755
--- a/tools/parallel_UT_rule.py
+++ b/tools/parallel_UT_rule.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import sys
 import os
 import platform
 
diff --git a/tools/print_signatures.py b/tools/print_signatures.py
index 93f5815bc906980bdb1992bec70c800bd2ff349a..9a280c691aaadb9ef4ae6c9eaa82022fe3995e1c 100644
--- a/tools/print_signatures.py
+++ b/tools/print_signatures.py
@@ -25,6 +25,7 @@ import hashlib
 import pkgutil
 import logging
 import argparse
+import paddle
 
 member_dict = collections.OrderedDict()
 
@@ -126,7 +127,6 @@ def get_all_api(root_path='paddle', attr="__all__"):
     """
     walk through the paddle package to collect all the apis.
     """
-    import paddle
     global api_info_dict
     api_counter = 0
     for filefinder, name, ispkg in pkgutil.walk_packages(
@@ -140,7 +140,6 @@ def get_all_api(root_path='paddle', attr="__all__"):
                 continue
         except AttributeError:
             logger.warning("AttributeError occurred when `eval(%s)`", name)
-            pass
         else:
             api_counter += process_module(m, attr)
 
@@ -159,7 +158,6 @@ def insert_api_into_dict(full_name, gen_doc_anno=None):
     Return:
         api_info object or None
     """
-    import paddle
     try:
         obj = eval(full_name)
         fc_id = id(obj)
@@ -222,7 +220,6 @@ def process_module(m, attr="__all__"):
 
 
 def check_public_api():
-    import paddle
     modulelist = [  #npqa
         paddle, paddle.amp, paddle.nn, paddle.nn.functional,
         paddle.nn.initializer, paddle.nn.utils, paddle.static, paddle.static.nn,
@@ -271,7 +268,6 @@ def check_public_api():
 
 
 def check_allmodule_callable():
-    import paddle
     modulelist = [paddle]
     for m in modulelist:
         visit_all_module(m)
diff --git a/tools/pyCov_multithreading.py b/tools/pyCov_multithreading.py
index cb2366075afb127a7c7db5a013f6ff9a8810bb67..fb4cef6805ff3b7a424f1c6c34f38cb43df7cf60 100644
--- a/tools/pyCov_multithreading.py
+++ b/tools/pyCov_multithreading.py
@@ -12,13 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from xml.etree import ElementTree
-import re
 import time
 import queue
 import threading
 import os
-import json
 import sys
 
 taskQueue = queue.Queue()
diff --git a/tools/sampcd_processor.py b/tools/sampcd_processor.py
index 9858925ca721dff66719bb9d775c682be8549d8c..1f1612100f1afe423ce8d6bd9d4ebb58e7ffb384 100644
--- a/tools/sampcd_processor.py
+++ b/tools/sampcd_processor.py
@@ -448,8 +448,6 @@ def get_filenames(full_test=False):
 
     '''
     global whl_error
-    import paddle
-    import paddle.fluid.contrib.slim.quantization
     whl_error = []
     if full_test:
         get_full_api_from_pr_spec()
diff --git a/tools/summary_env.py b/tools/summary_env.py
index 4e4100af4226c54941eacea08586dde5098f55a4..2abee2821c0739ad840d7060dafdd478c81cefe5 100644
--- a/tools/summary_env.py
+++ b/tools/summary_env.py
@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-import os
 import sys
 import distro
 import platform
diff --git a/tools/test_check_api_compatible.py b/tools/test_check_api_compatible.py
index 846fdefb7b6d693e3f63da5b0aeafcd1219d7092..1bed3951740b29ae66a468fbd8010a8c9f99575d 100644
--- a/tools/test_check_api_compatible.py
+++ b/tools/test_check_api_compatible.py
@@ -17,10 +17,7 @@
 TestCases for check_api_compatible.py
 """
 import unittest
-import sys
-import os
 import tempfile
-import inspect
 
 from check_api_compatible import read_argspec_from_file
 from check_api_compatible import check_compatible
diff --git a/tools/test_sampcd_processor.py b/tools/test_sampcd_processor.py
index 471deb9bedd6e19048a506c1d579b42a96adae70..42f5d96e71c0d8ac8eb2a94569b39c2d3c4af4d5 100644
--- a/tools/test_sampcd_processor.py
+++ b/tools/test_sampcd_processor.py
@@ -451,7 +451,6 @@ class Test_get_api_md5(unittest.TestCase):
 
     def tearDown(self):
         os.remove(self.api_pr_spec_filename)
-        pass
 
     def test_get_api_md5(self):
         res = get_api_md5('paddle/fluid/API_PR.spec')
diff --git a/tools/timeline.py b/tools/timeline.py
index c1c3d88c9954ad7eb7ffc322887c10365f07541c..b6c6a435f600f742714267c7c498bb0c35cb055a 100644
--- a/tools/timeline.py
+++ b/tools/timeline.py
@@ -15,10 +15,7 @@
 import argparse
 import json
 import six
-import sys
-import unittest
 
-import google.protobuf.text_format as text_format
 import paddle.fluid.proto.profiler.profiler_pb2 as profiler_pb2
 
 parser = argparse.ArgumentParser(description=__doc__)
diff --git a/tools/windows/get_prec_ut_list.py b/tools/windows/get_prec_ut_list.py
index 9285fb8e84c3c7c0ba7ebbc44032bd351c745143..4564c75910e3becc458eaabdbbd845e2cbe9c6b8 100644
--- a/tools/windows/get_prec_ut_list.py
+++ b/tools/windows/get_prec_ut_list.py
@@ -13,9 +13,7 @@
 # limitations under the License.
 """To get a list of prec ut """
 
-import sys
 import os
-import platform
 
 
 def get_prec_ut_list(all_test_cases, prec_test_cases):