diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
index ee70a28a4ea7..ec3729290236 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
@@ -9,9 +9,7 @@
 try:
     from sonic_platform_base.chassis_base import ChassisBase
     from sonic_py_common.logger import Logger
-    import glob
     import os
-    import sys
     from functools import reduce
 
     from . import utils
@@ -794,7 +792,7 @@ def get_module(self, index):
             module
         """
         self.initialize_single_module(index)
-        return super(Chassis, self).get_module(index)
+        return super(ModularChassis, self).get_module(index)
 
     @utils.default_return(-1)
     def get_module_index(self, module_name):
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/eeprom.py b/platform/mellanox/mlnx-platform-api/sonic_platform/eeprom.py
index b24a645b2921..decd3a24f409 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/eeprom.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/eeprom.py
@@ -7,8 +7,6 @@
 #############################################################################
 import os
 import subprocess
-import time
-import subprocess
 
 from sonic_py_common.logger import Logger
 try:
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py b/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py
index 8d607cd087f4..d57aa2395026 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py
@@ -12,7 +12,7 @@
 try:
     from sonic_platform_base.fan_base import FanBase
     from sonic_py_common.logger import Logger
-    from .led import FanLed, ComponentFaultyIndicator
+    from .led import ComponentFaultyIndicator
     from . import utils
 except ImportError as e:
     raise ImportError (str(e) + "- required module not found")
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/module.py b/platform/mellanox/mlnx-platform-api/sonic_platform/module.py
index 69c915e6fa0d..a02bcb1a9968 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/module.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/module.py
@@ -1,6 +1,4 @@
-import os
 import redis
-import sys
 import threading
 from sonic_platform_base.module_base import ModuleBase
 from sonic_py_common.logger import Logger
diff --git a/platform/mellanox/mlnx-platform-api/tests/test_eeprom.py b/platform/mellanox/mlnx-platform-api/tests/test_eeprom.py
index 82ed0f9589d6..74e3bbf9427e 100644
--- a/platform/mellanox/mlnx-platform-api/tests/test_eeprom.py
+++ b/platform/mellanox/mlnx-platform-api/tests/test_eeprom.py
@@ -35,7 +35,7 @@ def test_chassis_eeprom(self, mock_eeprom_info):
     def test_eeprom_init(self):
         # Test symlink not exist, there is an exception
         with pytest.raises(RuntimeError):
-            eeprom = Eeprom()
+            Eeprom()
 
     @patch('os.path.exists', MagicMock(return_value=True))
     @patch('os.path.islink', MagicMock(return_value=True))
diff --git a/platform/mellanox/mlnx-platform-api/tests/test_fan_api.py b/platform/mellanox/mlnx-platform-api/tests/test_fan_api.py
index d0154dfbf3b9..7e9f8140ed3f 100644
--- a/platform/mellanox/mlnx-platform-api/tests/test_fan_api.py
+++ b/platform/mellanox/mlnx-platform-api/tests/test_fan_api.py
@@ -10,7 +10,6 @@
 
 from sonic_platform import utils
 from sonic_platform.fan import Fan, PsuFan, COOLING_STATE_PATH
-from sonic_platform.led import FanLed
 from sonic_platform.fan_drawer import RealDrawer, VirtualDrawer
 from sonic_platform.psu import Psu
 
diff --git a/platform/mellanox/mlnx-platform-api/tests/test_psu.py b/platform/mellanox/mlnx-platform-api/tests/test_psu.py
index ea9a8ffbce38..84f3f5fda769 100644
--- a/platform/mellanox/mlnx-platform-api/tests/test_psu.py
+++ b/platform/mellanox/mlnx-platform-api/tests/test_psu.py
@@ -11,7 +11,6 @@
 
 from sonic_platform import utils
 from sonic_platform.psu import FixedPsu, Psu
-from sonic_platform.device_data import DeviceDataManager
 
 
 class TestPsu:
diff --git a/platform/mellanox/mlnx-platform-api/tests/test_sfp_event.py b/platform/mellanox/mlnx-platform-api/tests/test_sfp_event.py
index c6c5b1973a6e..186a25f6d568 100644
--- a/platform/mellanox/mlnx-platform-api/tests/test_sfp_event.py
+++ b/platform/mellanox/mlnx-platform-api/tests/test_sfp_event.py
@@ -1,5 +1,4 @@
 import os
-import select
 import sys
 
 from mock import MagicMock, patch
diff --git a/platform/mellanox/mlnx-platform-api/tests/test_thermal.py b/platform/mellanox/mlnx-platform-api/tests/test_thermal.py
index d8889f5b9848..6a7b6deabbce 100644
--- a/platform/mellanox/mlnx-platform-api/tests/test_thermal.py
+++ b/platform/mellanox/mlnx-platform-api/tests/test_thermal.py
@@ -1,7 +1,5 @@
 import glob
 import os
-import pytest
-import shutil
 import sys
 if sys.version_info.major == 3:
     from unittest import mock