diff --git a/aw/python/distributed/common/devices.py b/aw/python/distributed/common/devices.py
index 71803853a2ce9850decf534a9784254117ef9ade..188beb8195760122b7d826aacb45bdee6ec6284c 100755
--- a/aw/python/distributed/common/devices.py
+++ b/aw/python/distributed/common/devices.py
@@ -179,7 +179,6 @@ class DeviceAdapter:
             time.sleep(1)
         return return_code
 
-
     ###############################################################
     ###############################################################
 
@@ -199,6 +198,7 @@ class DeviceAdapter:
                     remote_ip, remote_port, device_sn)
         return device_para
 
+    @classmethod
     def execute_command(self, command, print_flag=True, timeout=900):
         try:
             if print_flag:
@@ -211,6 +211,7 @@ class DeviceAdapter:
         print("results: failed")
         return False
 
+    @classmethod
     def execute_command_with_output(self, command, print_flag=True):
         if print_flag:
             print("command: " + command)
@@ -248,6 +249,7 @@ class DeviceAdapter:
             command,
             QUOTATION_MARKS))
 
+    @classmethod
     def check_path_legal(self, path):
         if path and " " in path:
             return "\"%s\"" % path
@@ -318,7 +320,6 @@ class HDCDeviceAdapter:
         self.unlock_screen()
         self.unlock_device()
 
-
     ###############################################################
     ###############################################################
 
@@ -337,7 +338,8 @@ class HDCDeviceAdapter:
                 device_para = "-s tcp:%s:%s -t %s" % (
                     remote_ip, remote_port, device_sn)
         return device_para
-
+        
+    @classmethod
     def execute_command(self, command, print_flag=True, timeout=900):
         try:
             if print_flag:
@@ -350,6 +352,7 @@ class HDCDeviceAdapter:
         print("results: failed")
         return False
 
+    @classmethod
     def execute_command_with_output(self, command, print_flag=True):
         if print_flag:
             print("command: " + command)
@@ -384,6 +387,7 @@ class HDCDeviceAdapter:
             command,
             QUOTATION_MARKS))
 
+    @classmethod
     def check_path_legal(self, path):
         if path and " " in path:
             return "\"%s\"" % path
diff --git a/aw/python/distributed/common/manager.py b/aw/python/distributed/common/manager.py
index 7d3f3e977d75f4ae5b3651c3dded7bf7191ba4e5..0cba2d64702705a9deb575fd4e209ba8f5a4bba4 100755
--- a/aw/python/distributed/common/manager.py
+++ b/aw/python/distributed/common/manager.py
@@ -79,6 +79,7 @@ class DeviceManager:
                 setattr(self, device.name, device)
         return
 
+    @classmethod
     def get_device_info_list(self):
         device_info_list = []
         tmp_path = os.path.join(os.environ.get('PYTEST_RESULTPATH'), "temp")
diff --git a/aw/python/distributed/distribute/distribute.py b/aw/python/distributed/distribute/distribute.py
index 10790d05d1050f93688c8d399e19c66f0a699b7b..29b0d8becba926d5402d9cb855be971f412c7abd 100755
--- a/aw/python/distributed/distribute/distribute.py
+++ b/aw/python/distributed/distribute/distribute.py
@@ -116,6 +116,7 @@ class Distribute:
         suite_path = os.path.join(self.suite_dir, target_name)
         return driver.execute(suite_path, background=False)
 
+    @classmethod
     def pull_result(self, device, source_path, result_save_path):
         _, file_name = os.path.split(source_path)
         device.pull_file(source_path, result_save_path)
@@ -123,6 +124,7 @@ class Distribute:
             create_empty_result_file(result_save_path, file_name)
         return
 
+    @classmethod
     def _check_thread(self, device, thread_name):
         check_command = "ps -A | grep %s" % thread_name
         checksum = 0
@@ -164,6 +166,7 @@ class Distribute:
         config_major_file = os.path.join(self.suite_dir, "major.desc")
         self._write_device_config(config_info, config_major_file)
 
+    @classmethod
     def _query_device_ip(self, device):
         output = device.shell_with_output("getprop ro.hardware")
         if output == "":
@@ -185,6 +188,7 @@ class Distribute:
 
         return ipaddress[0]
 
+    @classmethod
     def _query_device_uuid(self, device):
         """
         1. Run the dumpsys DdmpDeviceMonitorService command to query the value
@@ -209,6 +213,7 @@ class Distribute:
         dev_nodeid_info = device_info[begin:end].replace('"', "")
         return dev_nodeid_info.split(":")[1]
 
+    @classmethod
     def _write_device_config(self, device_info, file_path):
         file_dir, file_name = os.path.split(file_path)
         final_file = os.path.join(file_dir, file_name.split('.')[0] + ".desc")
diff --git a/examples/app_info/test/unittest/common/get_app_info/ExampleJsunit.test.js b/examples/app_info/test/unittest/common/get_app_info/ExampleJsunit.test.js
index d6e92a7a6a5204f8b0718e09f72c44a045f2d572..84f768238335f1af1fdd4d7aa1bb5fd9d3a60c17 100644
--- a/examples/app_info/test/unittest/common/get_app_info/ExampleJsunit.test.js
+++ b/examples/app_info/test/unittest/common/get_app_info/ExampleJsunit.test.js
@@ -18,6 +18,7 @@ import {describe, beforeAll, beforeEach, afterEach, afterAll, it, expect} from '
 
 describe("AppInfoTest", function () {
     beforeAll(function() {
+
         /*
          * @tc.setup: setup invoked before all testcases
          */
@@ -25,6 +26,7 @@ describe("AppInfoTest", function () {
     })
     
     afterAll(function() {
+
         /*
          * @tc.teardown: teardown invoked after all testcases
          */
@@ -32,6 +34,7 @@ describe("AppInfoTest", function () {
     })
     
     beforeEach(function() {
+
         /*
          * @tc.setup: setup invoked before each testcases
          */
@@ -39,6 +42,7 @@ describe("AppInfoTest", function () {
     })
     
     afterEach(function() {
+        
         /*
          * @tc.teardown: teardown invoked after each testcases
          */
diff --git a/libs/fuzzlib/fuzzer_helper.py b/libs/fuzzlib/fuzzer_helper.py
index b8c6217419047f2c6d31f1a22b6e03b4c5b3d2f9..75efdfbb8981439f9b8092a2d048ff8d0039b318 100644
--- a/libs/fuzzlib/fuzzer_helper.py
+++ b/libs/fuzzlib/fuzzer_helper.py
@@ -27,6 +27,8 @@ import pipes
 import traceback
 import time
 import copy
+import shutil
+from pprint import pprint
 
 from tools.colored import Colored
 from tools.templates import GN_ENTRY_TEMPLATE
@@ -34,8 +36,6 @@ from tools.templates import PROJECT_GN_TEMPLATE
 from tools.templates import PROJECT_DEMO_TEMPLATE
 from tools.templates import PROJECT_HEADER_TEMPLATE
 from tools.templates import PROJECT_XML_TEMPLATE
-import shutil
-from pprint import pprint
 from tools.run_result import RunResult
 
 CURRENT_DIR = os.path.dirname(os.path.realpath(__file__))
diff --git a/libs/fuzzlib/tools/run_result.py b/libs/fuzzlib/tools/run_result.py
index 5fb2b6edc683e9f0a27568eccde9384378da423f..8898e750cbe98998659f572b2b10269aa832a62f 100644
--- a/libs/fuzzlib/tools/run_result.py
+++ b/libs/fuzzlib/tools/run_result.py
@@ -83,8 +83,8 @@ class RunResult():
 
 
 if __name__ == "__main__":
-    cmd_log = ""
+    CMD_LOG = ""
     res_obj = RunResult(0, "OK")
-    res_obj.analysis(cmd_log, "../../../out/")
+    res_obj.analysis(CMD_LOG, "../../../out/")
     print(res_obj.crash_info)
 
diff --git a/src/core/build/pretreat_targets.py b/src/core/build/pretreat_targets.py
index 7d30c9e13f36535c69eee352b617173dca10004d..b3c537c5fbe62a9592d864e9ad561e456320acfe 100644
--- a/src/core/build/pretreat_targets.py
+++ b/src/core/build/pretreat_targets.py
@@ -21,8 +21,8 @@ import sys
 import json
 import shutil
 
-from core.constants import JsTestConst
 from xdevice import platform_logger
+from core.constants import JsTestConst
 
 LOG = platform_logger("PretreatTargets")
 
diff --git a/src/core/command/console.py b/src/core/command/console.py
index a8b38225b68b649bed148d14b360e8c1eca836a1..87bbd962aa5f4f924ba4355f4a26498caa49fe7b 100755
--- a/src/core/command/console.py
+++ b/src/core/command/console.py
@@ -21,9 +21,10 @@ import sys
 import signal
 import platform
 
-from core.constants import ToolCommandType
 from xdevice import platform_logger
 from xdevice import EnvironmentManager
+
+from core.constants import ToolCommandType
 from core.command.run import Run
 from core.command.gen import Gen
 from core.command.display import display_help_info
diff --git a/src/core/command/run.py b/src/core/command/run.py
index d89d6577e882c39367246e97ec0e78bd5f4ee0b4..f0798873102db338b6152d90f6d53088c73a8d7b 100755
--- a/src/core/command/run.py
+++ b/src/core/command/run.py
@@ -20,12 +20,12 @@ import time
 import os
 import sys
 
-from core.constants import SchedulerType
 from xdevice import Plugin
 from xdevice import get_plugin
 from xdevice import platform_logger
 from xdevice import Scheduler
 from xdevice import DeviceTestType
+from core.constants import SchedulerType
 from core.utils import get_build_output_path
 from core.utils import scan_support_product
 from core.utils import is_lite_product
diff --git a/src/core/testcase/testcase_manager.py b/src/core/testcase/testcase_manager.py
index d0ac52af924604fa789f25c1dff2895ea3282e7c..dc1bd577866df0ee9ea78e01cef1412ea0b05b3b 100755
--- a/src/core/testcase/testcase_manager.py
+++ b/src/core/testcase/testcase_manager.py
@@ -18,9 +18,10 @@
 
 import os
 import copy
+
+from xdevice import platform_logger
 from core.utils import get_file_list_by_postfix
 from core.config.config_manager import FilterConfigManager
-from xdevice import platform_logger
 
 LOG = platform_logger("TestcaseManager")
 
diff --git a/src/main/__init__.py b/src/main/__init__.py
index d414ea5ceda3d5e6ef735cbf798592bf73c98851..81cae9cb7a987e10a92ec5570ad530372788ccea 100755
--- a/src/main/__init__.py
+++ b/src/main/__init__.py
@@ -16,8 +16,8 @@
 # limitations under the License.
 #
 
-from . import _init_global_config
 from core.command.console import Console
+from . import _init_global_config
 
 __all__ = [
     "Console",
diff --git a/src/main/__main__.py b/src/main/__main__.py
index 72a567ed64d0af2298772c6b5c5f0d69c26447cb..be624023f9c939085478a926f70d76c67adb7d76 100755
--- a/src/main/__main__.py
+++ b/src/main/__main__.py
@@ -17,8 +17,9 @@
 #
 
 import sys
-from main import Console
+
 from xdevice import platform_logger
+from main import Console
 
 LOG = platform_logger("main")