diff --git a/device/mellanox/x86_64-mlnx_msn2700-r0/pmon_daemon_control.json b/device/mellanox/x86_64-mlnx_msn2700-r0/pmon_daemon_control.json
index dec2ba6d782..86910af29e8 100644
--- a/device/mellanox/x86_64-mlnx_msn2700-r0/pmon_daemon_control.json
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/pmon_daemon_control.json
@@ -1,7 +1,6 @@
 {
     "skip_ledd": true,
     "skip_fancontrol": true,
-    "delay_xcvrd": true,
-    "python2_daemons": ["xcvrd"]
+    "delay_xcvrd": true
 }
 
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
index 585a664efce..4b392592e23 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/component.py b/platform/mellanox/mlnx-platform-api/sonic_platform/component.py
index f2a66c6d42e..8845b3faedb 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/component.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/component.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py b/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py
index cad7d014e0f..cc49e80651c 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/fan.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/fan_drawer.py b/platform/mellanox/mlnx-platform-api/sonic_platform/fan_drawer.py
index 66ee3949173..83095da5048 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/fan_drawer.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/fan_drawer.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/platform.py b/platform/mellanox/mlnx-platform-api/sonic_platform/platform.py
index 621045e860e..60e4dcbc99e 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/platform.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/platform.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/psu.py b/platform/mellanox/mlnx-platform-api/sonic_platform/psu.py
index cb05278d5b6..0729609353c 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/psu.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/psu.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp.py b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp.py
index 76a83a4472c..c07727ff00b 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
@@ -1493,9 +1491,12 @@ def mgmt_phy_mod_pwr_attr_get(cls, power_attr_type, sdk_handle, sdk_index):
         sx_mgmt_phy_mod_pwr_attr = sx_mgmt_phy_mod_pwr_attr_t()
         sx_mgmt_phy_mod_pwr_attr.power_attr_type = power_attr_type
         sx_mgmt_phy_mod_pwr_attr_t_p_assign(sx_mgmt_phy_mod_pwr_attr_p, sx_mgmt_phy_mod_pwr_attr)
+        module_id_info = sx_mgmt_module_id_info_t()
+        module_id_info.slot_id = 0
+        module_id_info.module_id = sdk_index
         try:
-            rc = sx_mgmt_phy_mod_pwr_attr_get(sdk_handle, sdk_index, sx_mgmt_phy_mod_pwr_attr_p)
-            assert SX_STATUS_SUCCESS == rc, "sx_mgmt_phy_mod_pwr_attr_get failed"
+            rc = sx_mgmt_phy_module_pwr_attr_get(sdk_handle, module_id_info, sx_mgmt_phy_mod_pwr_attr_p)
+            assert SX_STATUS_SUCCESS == rc, "sx_mgmt_phy_module_pwr_attr_get failed {}".format(rc)
             sx_mgmt_phy_mod_pwr_attr = sx_mgmt_phy_mod_pwr_attr_t_p_value(sx_mgmt_phy_mod_pwr_attr_p)
             pwr_mode_attr = sx_mgmt_phy_mod_pwr_attr.pwr_mode_attr
             return pwr_mode_attr.admin_pwr_mode_e, pwr_mode_attr.oper_pwr_mode_e
@@ -1517,7 +1518,7 @@ def get_lpmode(self):
             get_lpmode_code = 'from sonic_platform import sfp;\n' \
                               'with sfp.SdkHandleContext() as sdk_handle:' \
                               'print(sfp.SFP._get_lpmode(sdk_handle, {}))'.format(self.sdk_index)
-            lpm_cmd = "docker exec pmon python -c \"{}\"".format(get_lpmode_code)
+            lpm_cmd = "docker exec pmon python3 -c \"{}\"".format(get_lpmode_code)
             try:
                 output = subprocess.check_output(lpm_cmd, shell=True, universal_newlines=True)
                 return 'True' in output
@@ -1921,7 +1922,7 @@ def reset(self):
                          'with sfp.SdkHandleContext() as sdk_handle:' \
                          'print(sfp.SFP._reset(sdk_handle, {}))' \
                          .format(self.sdk_index)
-            reset_cmd = "docker exec pmon python -c \"{}\"".format(reset_code)
+            reset_cmd = "docker exec pmon python3 -c \"{}\"".format(reset_code)
 
             try:
                 output = subprocess.check_output(reset_cmd, shell=True, universal_newlines=True)
@@ -1935,9 +1936,12 @@ def reset(self):
 
     @classmethod
     def _reset(cls, sdk_handle, sdk_index):
-        rc = sx_mgmt_phy_mod_reset(sdk_handle, sdk_index)
+        module_id_info = sx_mgmt_module_id_info_t()
+        module_id_info.slot_id = 0
+        module_id_info.module_id = sdk_index
+        rc = sx_mgmt_phy_module_reset(sdk_handle, module_id_info)
         if rc != SX_STATUS_SUCCESS:
-            logger.log_warning("sx_mgmt_phy_mod_reset failed, rc = %d" % rc)
+            logger.log_error("Error occurred when resetting SFP module {}, error code {}".format(sdk_index, rc))
 
         return rc == SX_STATUS_SUCCESS
 
@@ -2051,10 +2055,13 @@ def mgmt_phy_mod_pwr_attr_set(cls, sdk_handle, sdk_index, power_attr_type, admin
         sx_mgmt_phy_mod_pwr_attr.pwr_mode_attr = sx_mgmt_phy_mod_pwr_mode_attr
         sx_mgmt_phy_mod_pwr_attr_p = new_sx_mgmt_phy_mod_pwr_attr_t_p()
         sx_mgmt_phy_mod_pwr_attr_t_p_assign(sx_mgmt_phy_mod_pwr_attr_p, sx_mgmt_phy_mod_pwr_attr)
+        module_id_info = sx_mgmt_module_id_info_t()
+        module_id_info.slot_id = 0
+        module_id_info.module_id = sdk_index
         try:
-            rc = sx_mgmt_phy_mod_pwr_attr_set(sdk_handle, SX_ACCESS_CMD_SET, sdk_index, sx_mgmt_phy_mod_pwr_attr_p)
+            rc = sx_mgmt_phy_module_pwr_attr_set(sdk_handle, SX_ACCESS_CMD_SET, module_id_info, sx_mgmt_phy_mod_pwr_attr_p)
             if SX_STATUS_SUCCESS != rc:
-                logger.log_error("sx_mgmt_phy_mod_pwr_attr_set failed, rc = %d" % rc)
+                logger.log_error("Error occurred when setting power mode for SFP module {}, error code {}".format(sdk_index, rc))
                 result = False
             else:
                 result = True
@@ -2104,7 +2111,7 @@ def set_lpmode(self, lpmode):
                               'with sfp.SdkHandleContext() as sdk_handle:' \
                               'print(sfp.SFP._set_lpmode({}, sdk_handle, {}))' \
                               .format('True' if lpmode else 'False', self.sdk_index)
-            lpm_cmd = "docker exec pmon python -c \"{}\"".format(set_lpmode_code)
+            lpm_cmd = "docker exec pmon python3 -c \"{}\"".format(set_lpmode_code)
 
             # Set LPM
             try:
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
index ba3ab68a957..faf3859f49c 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
@@ -1,4 +1,3 @@
-#!/usr/bin/env python
 '''
 listen to the SDK for the SFP change event and return to chassis.
 '''
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py b/platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py
index b0ddf13f7bb..38c66ef4573 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 #############################################################################
 # Mellanox
 #
diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/watchdog.py b/platform/mellanox/mlnx-platform-api/sonic_platform/watchdog.py
index 909ec6a8884..06780627d52 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/watchdog.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/watchdog.py
@@ -1,5 +1,3 @@
-#!/usr/bin/env python
-
 """
 Mellanox