[Python] Migrate applications/scripts to import sonic-py-common package (#5043)

As part of consolidating all common Python-based functionality into the new sonic-py-common package, this pull request: 1. Redirects all Python applications/scripts in sonic-buildimage repo which previously imported sonic_device_util or sonic_daemon_base to instead import sonic-py-common, which was added in https://github.com/Azure/sonic-buildimage/pull/5003 2. Replaces all calls to `sonic_device_util.get_platform_info()` to instead call `sonic_py_common.get_platform()` and removes any calls to `sonic_device_util.get_machine_info()` which are no longer necessary (i.e., those which were only used to pass the results to `sonic_device_util.get_platform_info()`. 3. Removes unused imports to the now-deprecated sonic-daemon-base package and sonic_device_util.py module This is the next step toward resolving https://github.com/Azure/sonic-buildimage/issues/4999 Also reverted my previous change in which device_info.get_platform() would first try obtaining the platform ID string from Config DB and fall back to gathering it from machine.conf upon failure because this function is called by sonic-cfggen before the data is in the DB, in which case, the db_connect() call will hang indefinitely, which was not the behavior I expected. As of now, the function will always reference machine.conf.
2020-08-03 11:43:12 -07:00 · 2020-08-03 11:43:12 -07:00 · 3b89e5d467
commit 3b89e5d467
parent c4728a8261
38 changed files with 92 additions and 75 deletions
--- a/device/accton/x86_64-accton_as7116_54x-r0/sonic_platform/chassis.py
+++ b/device/accton/x86_64-accton_as7116_54x-r0/sonic_platform/chassis.py
@ -14,7 +14,7 @@ try:
    import json
    import syslog
    from sonic_platform_base.chassis_base import ChassisBase
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common.logger import Logger
    from sonic_platform.fan import Fan
    from sonic_platform.psu import Psu
    from sonic_platform.component import Component
--- a/device/accton/x86_64-accton_as7116_54x-r0/sonic_platform/sfp.py
+++ b/device/accton/x86_64-accton_as7116_54x-r0/sonic_platform/sfp.py
@ -8,7 +8,6 @@ try:
    import os
    import time
    import subprocess
-    import sonic_device_util
    import syslog
    from ctypes import create_string_buffer
    from sonic_platform_base.sfp_base import SfpBase
@ -18,7 +17,6 @@ try:
    from sonic_platform_base.sonic_sfp.sff8436 import sff8436Dom
    from sonic_platform_base.sonic_sfp.sff8436 import sff8436InterfaceId
    from sonic_platform_base.sonic_sfp.sfputilhelper import SfpUtilHelper
-    from sonic_daemon_base.daemon_base import Logger
 except ImportError as e:
    raise ImportError(str(e) + "- required module not found")

--- a/device/celestica/x86_64-cel_e1031-r0/sonic_platform/sfp.py
+++ b/device/celestica/x86_64-cel_e1031-r0/sonic_platform/sfp.py
@ -11,7 +11,6 @@
 import os
 import time
 import subprocess
-import sonic_device_util
 from ctypes import create_string_buffer

 try:
--- a/device/celestica/x86_64-cel_seastone-r0/sonic_platform/helper.py
+++ b/device/celestica/x86_64-cel_seastone-r0/sonic_platform/helper.py
@ -3,9 +3,10 @@
 import os
 import struct
 import subprocess
-from sonic_daemon_base.daemon_base import DaemonBase
 from mmap import *

+from sonic_py_common import device_info
+
 HOST_CHK_CMD = "docker > /dev/null 2>&1"
 EMPTY_STRING = ""

@ -13,7 +14,7 @@ EMPTY_STRING = ""
 class APIHelper():

    def __init__(self):
-        (self.platform, self.hwsku) = DaemonBase().get_platform_and_hwsku()
+        (self.platform, self.hwsku) = device_info.get_platform_and_hwsku()

    def is_host(self):
        return os.system(HOST_CHK_CMD) == 0
--- a/device/celestica/x86_64-cel_seastone-r0/sonic_platform/sfp.py
+++ b/device/celestica/x86_64-cel_seastone-r0/sonic_platform/sfp.py
@ -10,7 +10,6 @@

 import time
 import subprocess
-import sonic_device_util
 from ctypes import create_string_buffer

 try:
--- a/device/celestica/x86_64-cel_silverstone-r0/sonic_platform/sfp.py
+++ b/device/celestica/x86_64-cel_silverstone-r0/sonic_platform/sfp.py
@ -11,7 +11,6 @@
 import os
 import time
 import subprocess
-import sonic_device_util
 from ctypes import create_string_buffer

 try:
--- a/device/juniper/x86_64-juniper_qfx5200-r0/plugins/qfx5200_sfp_init.py
+++ b/device/juniper/x86_64-juniper_qfx5200-r0/plugins/qfx5200_sfp_init.py
@ -35,7 +35,7 @@
 import time
 import os.path
 import sfputil as jnpr_sfp
-from sonic_daemon_base.daemon_base import Logger
+from sonic_py_common.logger import Logger
 from pprint import pprint

 SYSLOG_IDENTIFIER = "sfputil"
--- a/device/juniper/x86_64-juniper_qfx5200-r0/plugins/sfputil.py
+++ b/device/juniper/x86_64-juniper_qfx5200-r0/plugins/sfputil.py
@ -42,7 +42,7 @@ try:
    from sonic_platform_base.sonic_sfp.sff8472 import sff8472InterfaceId
    from sonic_platform_base.sonic_sfp.sff8436 import sff8436Dom
    from sonic_platform_base.sonic_sfp.sff8436 import sff8436InterfaceId
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common.logger import Logger
    from ctypes import create_string_buffer

 except ImportError as e:
--- a/device/juniper/x86_64-juniper_qfx5210-r0/plugins/sfputil.py
+++ b/device/juniper/x86_64-juniper_qfx5210-r0/plugins/sfputil.py
@ -8,7 +8,7 @@ try:
    import io
    import string
    from ctypes import create_string_buffer
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common.logger import Logger
 except ImportError, e:
    raise ImportError (str(e) + "- required module not found")

--- a/device/mellanox/x86_64-mlnx_msn2700-r0/plugins/eeprom.py
+++ b/device/mellanox/x86_64-mlnx_msn2700-r0/plugins/eeprom.py
@ -21,7 +21,7 @@ try:
    from cStringIO import StringIO
    from sonic_eeprom import eeprom_base
    from sonic_eeprom import eeprom_tlvinfo
-    from sonic_device_util import get_machine_info
+    from sonic_py_common.device_info import get_machine_info
    import subprocess
 except ImportError, e:
    raise ImportError (str(e) + "- required module not found")
--- a/files/build_templates/sonic_debian_extension.j2
+++ b/files/build_templates/sonic_debian_extension.j2
@ -97,12 +97,6 @@ sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y in
    python-yaml    \
    python-bitarray

-# Install SONiC config engine Python package
-CONFIG_ENGINE_WHEEL_NAME=$(basename {{config_engine_wheel_path}})
-sudo cp {{config_engine_wheel_path}} $FILESYSTEM_ROOT/$CONFIG_ENGINE_WHEEL_NAME
-sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $CONFIG_ENGINE_WHEEL_NAME
-sudo rm -rf $FILESYSTEM_ROOT/$CONFIG_ENGINE_WHEEL_NAME
-
 # Install Python client for Redis
 sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install "redis==3.5.3"

@ -137,6 +131,24 @@ sudo cp {{swsssdk_py2_wheel_path}} $FILESYSTEM_ROOT/$SWSSSDK_PY2_WHEEL_NAME
 sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $SWSSSDK_PY2_WHEEL_NAME
 sudo rm -rf $FILESYSTEM_ROOT/$SWSSSDK_PY2_WHEEL_NAME

+# Install sonic-py-common Python 2 package
+SONIC_PY_COMMON_PY2_WHEEL_NAME=$(basename {{sonic_py_common_py2_wheel_path}})
+sudo cp {{sonic_py_common_py2_wheel_path}} $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY2_WHEEL_NAME
+sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $SONIC_PY_COMMON_PY2_WHEEL_NAME
+sudo rm -rf $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY2_WHEEL_NAME
+
+# Install sonic-py-common Python 3 package
+SONIC_PY_COMMON_PY3_WHEEL_NAME=$(basename {{sonic_py_common_py3_wheel_path}})
+sudo cp {{sonic_py_common_py3_wheel_path}} $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY3_WHEEL_NAME
+sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip3 install $SONIC_PY_COMMON_PY3_WHEEL_NAME
+sudo rm -rf $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY3_WHEEL_NAME
+
+# Install SONiC config engine Python package
+CONFIG_ENGINE_WHEEL_NAME=$(basename {{config_engine_wheel_path}})
+sudo cp {{config_engine_wheel_path}} $FILESYSTEM_ROOT/$CONFIG_ENGINE_WHEEL_NAME
+sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $CONFIG_ENGINE_WHEEL_NAME
+sudo rm -rf $FILESYSTEM_ROOT/$CONFIG_ENGINE_WHEEL_NAME
+
 # Install sonic-yang-models py3 package, install dependencies
 sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/libyang_*.deb
 sudo dpkg --root=$FILESYSTEM_ROOT -i $debs_path/libyang-cpp_*.deb
@ -163,18 +175,6 @@ sudo cp {{daemon_base_py2_wheel_path}} $FILESYSTEM_ROOT/$DAEMON_BASE_PY2_WHEEL_N
 sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $DAEMON_BASE_PY2_WHEEL_NAME
 sudo rm -rf $FILESYSTEM_ROOT/$DAEMON_BASE_PY2_WHEEL_NAME

-# Install sonic-py-common Python 2 package
-SONIC_PY_COMMON_PY2_WHEEL_NAME=$(basename {{sonic_py_common_py2_wheel_path}})
-sudo cp {{sonic_py_common_py2_wheel_path}} $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY2_WHEEL_NAME
-sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip install $SONIC_PY_COMMON_PY2_WHEEL_NAME
-sudo rm -rf $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY2_WHEEL_NAME
-
-# Install sonic-py-common Python 3 package
-SONIC_PY_COMMON_PY3_WHEEL_NAME=$(basename {{sonic_py_common_py3_wheel_path}})
-sudo cp {{sonic_py_common_py3_wheel_path}} $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY3_WHEEL_NAME
-sudo https_proxy=$https_proxy LANG=C chroot $FILESYSTEM_ROOT pip3 install $SONIC_PY_COMMON_PY3_WHEEL_NAME
-sudo rm -rf $FILESYSTEM_ROOT/$SONIC_PY_COMMON_PY3_WHEEL_NAME
-
 # Install built Python Click package (and its dependencies via 'apt-get -y install -f')
 # Do this before installing sonic-utilities so that it doesn't attempt to install
 # an older version as part of its dependencies
--- a/files/image_config/process-reboot-cause/process-reboot-cause
+++ b/files/image_config/process-reboot-cause/process-reboot-cause
@ -13,7 +13,7 @@ try:
    import syslog
    import re

-    import sonic_device_util
+    from sonic_py_common import device_info
 except ImportError as err:
    raise ImportError("%s - required module not found" % str(err))

@ -85,7 +85,7 @@ def find_software_reboot_cause():

    if os.path.isfile(FIRST_BOOT_PLATFORM_FILE):
        if software_reboot_cause == REBOOT_CAUSE_UNKNOWN:
-            version_info = sonic_device_util.get_sonic_version_info()
+            version_info = device_info.get_sonic_version_info()
            build_version = version_info['build_version'] if version_info else "unknown"
            software_reboot_cause += " (First boot of SONiC version {})".format(build_version)
        os.remove(FIRST_BOOT_PLATFORM_FILE)
--- a/platform/broadcom/sonic-platform-modules-inventec/d7054q28b/sonic_platform/sfp.py
+++ b/platform/broadcom/sonic-platform-modules-inventec/d7054q28b/sonic_platform/sfp.py
@ -11,7 +11,6 @@
 import os
 import time
 import subprocess
-import sonic_device_util
 from ctypes import create_string_buffer

 try:
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
@ -11,9 +11,8 @@
 try:
    from sonic_platform_base.chassis_base import ChassisBase
    from sonic_platform_base.component_base import ComponentBase
-    from sonic_device_util import get_machine_info
-    from sonic_device_util import get_platform_info
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common import device_info
+    from sonic_py_common.logger import Logger
    from os import listdir
    from os.path import isfile, join
    import sys
@ -66,10 +65,10 @@ class Chassis(ChassisBase):
        self.sku_name = self._get_sku_name()
        self.platform_name = self._get_platform_name()

-        mi = get_machine_info()
+        mi = device_info.get_machine_info()
        if mi is not None:
            self.name = mi['onie_platform']
-            self.platform_name = get_platform_info(mi)
+            self.platform_name = device_info.get_platform()
        else:
            self.name = self.sku_name
            self.platform_name = self._get_platform_name()
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/psu.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/psu.py
@ -11,7 +11,7 @@
 try:
    import os.path
    from sonic_platform_base.psu_base import PsuBase
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common.logger import Logger
    from sonic_platform.fan import Fan
    from .led import PsuLed, SharedLed, ComponentFaultyIndicator
    from .device_data import DEVICE_DATA
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp.py
@ -21,7 +21,7 @@ try:
    from sonic_platform_base.sonic_sfp.inf8628 import inf8628InterfaceId
    from sonic_platform_base.sonic_sfp.qsfp_dd import qsfp_dd_InterfaceId
    from sonic_platform_base.sonic_sfp.qsfp_dd import qsfp_dd_Dom
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common.logger import Logger
    from python_sdk_api.sxd_api import *
    from python_sdk_api.sx_api import *

--- a/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/sfp_event.py
@ -9,7 +9,7 @@ import os
 import time
 import select
 from python_sdk_api.sx_api import *
-from sonic_daemon_base.daemon_base import Logger
+from sonic_py_common.logger import Logger

 # SFP status from PMAOS register
 # 0x1 plug in
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/thermal.py
@ -10,7 +10,7 @@

 try:
    from sonic_platform_base.thermal_base import ThermalBase
-    from sonic_daemon_base.daemon_base import Logger
+    from sonic_py_common.logger import Logger
    from os import listdir
    from os.path import isfile, join
    import io
--- a/platform/vs/docker-sonic-vs.mk
+++ b/platform/vs/docker-sonic-vs.mk
@ -14,8 +14,14 @@ $(DOCKER_SONIC_VS)_DEPENDS += $(SWSS) \

 $(DOCKER_SONIC_VS)_PYTHON_DEBS += $(SONIC_UTILS)

-$(DOCKER_SONIC_VS)_PYTHON_WHEELS += $(SONIC_YANG_MODELS_PY3)
-$(DOCKER_SONIC_VS)_PYTHON_WHEELS += $(SONIC_YANG_MGMT_PY)
+# swsssdk is a dependency of sonic-py-common
+# TODO: sonic-py-common should depend on swsscommon instead
+$(DOCKER_SONIC_VS)_PYTHON_WHEELS += $(SWSSSDK_PY2) \
+                                    $(SWSSSDK_PY3) \
+                                    $(SONIC_PY_COMMON_PY2) \
+                                    $(SONIC_PY_COMMON_PY3) \
+                                    $(SONIC_YANG_MODELS_PY3) \
+                                    $(SONIC_YANG_MGMT_PY)

 ifeq ($(INSTALL_DEBUG_TOOLS), y)
 $(DOCKER_SONIC_VS)_DEPENDS += $(SWSS_DBG) \
--- a/platform/vs/docker-sonic-vs/Dockerfile.j2
+++ b/platform/vs/docker-sonic-vs/Dockerfile.j2
@ -49,6 +49,7 @@ RUN apt-get install -y net-tools \
                       python3-pip

 RUN pip install setuptools
+RUN pip3 install setuptools
 RUN pip install py2_ipaddress
 RUN pip install six
 RUN pip install pyroute2==0.5.3 netifaces==0.10.7
--- a/rules/docker-config-engine-buster.mk
+++ b/rules/docker-config-engine-buster.mk
@ -4,6 +4,7 @@ DOCKER_CONFIG_ENGINE_BUSTER = docker-config-engine-buster.gz
 $(DOCKER_CONFIG_ENGINE_BUSTER)_PATH = $(DOCKERS_PATH)/docker-config-engine-buster

 $(DOCKER_CONFIG_ENGINE_BUSTER)_PYTHON_WHEELS += $(SWSSSDK_PY2)
+$(DOCKER_CONFIG_ENGINE_BUSTER)_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY2)
 $(DOCKER_CONFIG_ENGINE_BUSTER)_PYTHON_WHEELS += $(SONIC_CONFIG_ENGINE)
 $(DOCKER_CONFIG_ENGINE_BUSTER)_LOAD_DOCKERS += $(DOCKER_BASE_BUSTER)

--- a/rules/docker-config-engine-stretch.mk
+++ b/rules/docker-config-engine-stretch.mk
@ -3,6 +3,7 @@
 DOCKER_CONFIG_ENGINE_STRETCH = docker-config-engine-stretch.gz
 $(DOCKER_CONFIG_ENGINE_STRETCH)_PATH = $(DOCKERS_PATH)/docker-config-engine-stretch
 $(DOCKER_CONFIG_ENGINE_STRETCH)_PYTHON_WHEELS += $(SWSSSDK_PY2)
+$(DOCKER_CONFIG_ENGINE_STRETCH)_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY2)
 $(DOCKER_CONFIG_ENGINE_STRETCH)_PYTHON_WHEELS += $(SONIC_CONFIG_ENGINE)
 $(DOCKER_CONFIG_ENGINE_STRETCH)_LOAD_DOCKERS += $(DOCKER_BASE_STRETCH)

--- a/rules/docker-config-engine.mk
+++ b/rules/docker-config-engine.mk
@ -3,6 +3,7 @@
 DOCKER_CONFIG_ENGINE = docker-config-engine.gz
 $(DOCKER_CONFIG_ENGINE)_PATH = $(DOCKERS_PATH)/docker-config-engine
 $(DOCKER_CONFIG_ENGINE)_PYTHON_WHEELS += $(SWSSSDK_PY2)
+$(DOCKER_CONFIG_ENGINE)_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY2)
 $(DOCKER_CONFIG_ENGINE)_PYTHON_WHEELS += $(SONIC_CONFIG_ENGINE)
 $(DOCKER_CONFIG_ENGINE)_LOAD_DOCKERS += $(DOCKER_BASE)
 SONIC_DOCKER_IMAGES += $(DOCKER_CONFIG_ENGINE)
--- a/rules/sonic-config.mk
+++ b/rules/sonic-config.mk
@ -2,6 +2,6 @@

 SONIC_CONFIG_ENGINE = sonic_config_engine-1.0-py2-none-any.whl
 $(SONIC_CONFIG_ENGINE)_SRC_PATH = $(SRC_PATH)/sonic-config-engine
-$(SONIC_CONFIG_ENGINE)_DEPENDS += $(SWSSSDK_PY2)
+$(SONIC_CONFIG_ENGINE)_DEPENDS += $(SWSSSDK_PY2) $(SONIC_PY_COMMON_PY2)
 $(SONIC_CONFIG_ENGINE)_PYTHON_VERSION = 2
 SONIC_PYTHON_WHEELS += $(SONIC_CONFIG_ENGINE)
--- a/rules/sonic-ledd.mk
+++ b/rules/sonic-ledd.mk
@ -2,4 +2,5 @@

 SONIC_LEDD = python-sonic-ledd_1.1-1_all.deb
 $(SONIC_LEDD)_SRC_PATH = $(SRC_PATH)/sonic-platform-daemons/sonic-ledd
+$(SONIC_LEDD)_WHEEL_DEPENDS = $(SONIC_PY_COMMON_PY2)
 SONIC_PYTHON_STDEB_DEBS += $(SONIC_LEDD)
--- a/rules/sonic-platform-common.mk
+++ b/rules/sonic-platform-common.mk
@ -3,14 +3,15 @@
 SONIC_PLATFORM_COMMON_PY2 = sonic_platform_common-1.0-py2-none-any.whl
 $(SONIC_PLATFORM_COMMON_PY2)_SRC_PATH = $(SRC_PATH)/sonic-platform-common
 $(SONIC_PLATFORM_COMMON_PY2)_PYTHON_VERSION = 2
-$(SONIC_PLATFORM_COMMON_PY2)_DEPENDS = $(SONIC_CONFIG_ENGINE)
+$(SONIC_PLATFORM_COMMON_PY2)_DEPENDS += $(SONIC_PY_COMMON_PY2) $(SONIC_CONFIG_ENGINE)
 SONIC_PYTHON_WHEELS += $(SONIC_PLATFORM_COMMON_PY2)

 # Als build sonic-platform-common into python3 wheel, so we can use PSU code in SNMP docker
 SONIC_PLATFORM_COMMON_PY3 = sonic_platform_common-1.0-py3-none-any.whl
 $(SONIC_PLATFORM_COMMON_PY3)_SRC_PATH = $(SRC_PATH)/sonic-platform-common
 $(SONIC_PLATFORM_COMMON_PY3)_PYTHON_VERSION = 3
+$(SONIC_PLATFORM_COMMON_PY3)_DEPENDS += $(SONIC_PY_COMMON_PY3)
 # Synthetic dependency just to avoid race condition
-$(SONIC_PLATFORM_COMMON_PY3)_DEPENDS = $(SONIC_PLATFORM_COMMON_PY2)
+$(SONIC_PLATFORM_COMMON_PY3)_DEPENDS += $(SONIC_PLATFORM_COMMON_PY2)
 $(SONIC_PLATFORM_COMMON_PY3)_TEST = n
 SONIC_PYTHON_WHEELS += $(SONIC_PLATFORM_COMMON_PY3)
--- a/rules/sonic-psud.mk
+++ b/rules/sonic-psud.mk
@ -2,4 +2,5 @@

 SONIC_PSUD = python-sonic-psud_1.0-1_all.deb
 $(SONIC_PSUD)_SRC_PATH = $(SRC_PATH)/sonic-platform-daemons/sonic-psud
+$(SONIC_PSUD)_WHEEL_DEPENDS = $(SONIC_PY_COMMON_PY2)
 SONIC_PYTHON_STDEB_DEBS += $(SONIC_PSUD)
--- a/rules/sonic-py-common.mk
+++ b/rules/sonic-py-common.mk
@ -11,5 +11,8 @@ SONIC_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY2)
 SONIC_PY_COMMON_PY3 = sonic_py_common-1.0-py3-none-any.whl
 $(SONIC_PY_COMMON_PY3)_SRC_PATH = $(SRC_PATH)/sonic-py-common
 $(SONIC_PY_COMMON_PY3)_DEPENDS += $(SWSSSDK_PY3)
+# Synthetic dependency to avoid building the Python 2 and 3 packages
+# simultaneously and any potential conflicts which may arise
+$(SONIC_PY_COMMON_PY3)_DEPENDS += $(SONIC_PY_COMMON_PY2)
 $(SONIC_PY_COMMON_PY3)_PYTHON_VERSION = 3
 SONIC_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY3)
--- a/rules/sonic-syseepromd.mk
+++ b/rules/sonic-syseepromd.mk
@ -2,4 +2,5 @@

 SONIC_SYSEEPROMD = python-sonic-syseepromd_1.0-1_all.deb
 $(SONIC_SYSEEPROMD)_SRC_PATH = $(SRC_PATH)/sonic-platform-daemons/sonic-syseepromd
+$(SONIC_SYSEEPROMD)_WHEEL_DEPENDS = $(SONIC_PY_COMMON_PY2)
 SONIC_PYTHON_STDEB_DEBS += $(SONIC_SYSEEPROMD)
--- a/rules/sonic-utilities.mk
+++ b/rules/sonic-utilities.mk
@ -12,8 +12,13 @@

 SONIC_UTILS = python-sonic-utilities_1.2-1_all.deb
 $(SONIC_UTILS)_SRC_PATH = $(SRC_PATH)/sonic-utilities
-$(SONIC_UTILS)_DEBS_DEPENDS = $(LIBYANG) $(LIBYANG_CPP) $(LIBYANG_PY2) \
+$(SONIC_UTILS)_DEBS_DEPENDS = $(LIBYANG) \
+                              $(LIBYANG_CPP) \
+                              $(LIBYANG_PY2) \
                              $(LIBYANG_PY3)
-$(SONIC_UTILS)_WHEEL_DEPENDS = $(SONIC_CONFIG_ENGINE) $(SONIC_YANG_MGMT_PY) \
+$(SONIC_UTILS)_WHEEL_DEPENDS = $(SONIC_PY_COMMON_PY2) \
+                               $(SONIC_PY_COMMON_PY3) \
+                               $(SONIC_CONFIG_ENGINE) \
+                               $(SONIC_YANG_MGMT_PY) \
                               $(SONIC_YANG_MODELS_PY3)
 SONIC_PYTHON_STDEB_DEBS += $(SONIC_UTILS)
--- a/rules/sonic-xcvrd.mk
+++ b/rules/sonic-xcvrd.mk
@ -2,4 +2,5 @@

 SONIC_XCVRD = python-sonic-xcvrd_1.0-1_all.deb
 $(SONIC_XCVRD)_SRC_PATH = $(SRC_PATH)/sonic-platform-daemons/sonic-xcvrd
+$(SONIC_XCVRD)_WHEEL_DEPENDS = $(SONIC_PY_COMMON_PY2)
 SONIC_PYTHON_STDEB_DEBS += $(SONIC_XCVRD)
--- a/rules/sonic_bgpcfgd.mk
+++ b/rules/sonic_bgpcfgd.mk
@ -2,6 +2,10 @@

 SONIC_BGPCFGD = sonic_bgpcfgd-1.0-py2-none-any.whl
 $(SONIC_BGPCFGD)_SRC_PATH = $(SRC_PATH)/sonic-bgpcfgd
-$(SONIC_BGPCFGD)_DEPENDS += $(SWSSSDK_PY2)
+# These dependencies are only needed becuase they are dependencies
+# of sonic-config-engine and bgpcfgd explicitly calls sonic-cfggen
+# as part of its unit tests.
+# TODO: Refactor unit tests so that these dependencies are not needed
+$(SONIC_BGPCFGD)_DEPENDS += $(SWSSSDK_PY2) $(SONIC_PY_COMMON_PY2)
 $(SONIC_BGPCFGD)_PYTHON_VERSION = 2
 SONIC_PYTHON_WHEELS += $(SONIC_BGPCFGD)
--- a/src/sonic-config-engine/minigraph.py
+++ b/src/sonic-config-engine/minigraph.py
@ -14,7 +14,7 @@ from lxml import etree as ET
 from lxml.etree import QName

 from portconfig import get_port_config
-from sonic_device_util import get_npu_id_from_name
+from sonic_py_common.device_info import get_npu_id_from_name

 """minigraph.py
 version_added: "1.9"
--- a/src/sonic-config-engine/setup.py
+++ b/src/sonic-config-engine/setup.py
@ -18,7 +18,15 @@ setup(name='sonic-config-engine',
      url='https://github.com/Azure/sonic-buildimage',
      py_modules=['portconfig', 'minigraph', 'openconfig_acl', 'sonic_device_util', 'config_samples', 'redis_bcc', 'lazy_re'],
      scripts=['sonic-cfggen'],
-      install_requires=['lxml', 'jinja2>=2.10', 'netaddr', 'ipaddr', 'pyyaml', 'pyangbind==0.6.0'],
+      install_requires=[
+          'ipaddr',
+          'jinja2>=2.10',
+          'lxml',
+          'netaddr',
+          'pyyaml',
+          'pyangbind==0.6.0',
+          'sonic-py-common'
+      ],
      test_suite='setup.get_test_suite',
      data_files=[
        ('/usr/share/sonic/templates', glob.glob('data/*')),
--- a/src/sonic-config-engine/sonic-cfggen
+++ b/src/sonic-config-engine/sonic-cfggen
@ -41,11 +41,8 @@ from minigraph import parse_xml
 from minigraph import parse_device_desc_xml
 from minigraph import parse_asic_sub_role
 from portconfig import get_port_config, get_port_config_file_name, get_breakout_mode
-from sonic_device_util import get_machine_info
-from sonic_device_util import get_platform_info
-from sonic_device_util import get_system_mac
-from sonic_device_util import get_npu_id_from_name
-from sonic_device_util import is_multi_npu
+from sonic_py_common.device_info import get_platform, get_system_mac
+from sonic_py_common.device_info import get_npu_id_from_name, is_multi_npu
 from config_samples import generate_sample_config
 from config_samples import get_available_config
 from swsssdk import SonicV2Connector, ConfigDBConnector, SonicDBConfig 
@ -235,7 +232,7 @@ def main():
    group.add_argument("-K", "--key", help="Lookup for a specific key")
    args = parser.parse_args()

-    platform = get_platform_info(get_machine_info())
+    platform = get_platform()

    db_kwargs = {}
    if args.redis_unix_sock_file != None:
--- a/src/sonic-py-common/sonic_py_common/daemon_base.py
+++ b/src/sonic-py-common/sonic_py_common/daemon_base.py
@ -56,7 +56,7 @@ class DaemonBase(Logger):
        platform_util = None

        # Get path to platform and hwsku
-        (platform_path, hwsku_path) = device_info.get_path_to_platform_and_hwsku()
+        (platform_path, hwsku_path) = device_info.get_paths_to_platform_and_hwsku()

        try:
            module_file = "/".join([platform_path, "plugins", module_name + ".py"])
--- a/src/sonic-py-common/sonic_py_common/device_info.py
+++ b/src/sonic-py-common/sonic_py_common/device_info.py
@ -1,5 +1,6 @@
 import glob
 import os
+import re
 import subprocess

 import yaml
@ -57,22 +58,11 @@ def get_platform():
    Returns:
        A string containing the device's platform identifier
    """
-    # First, attempt to retrieve the platform string from Config DB
-    config_db = ConfigDBConnector()
-    config_db.connect()
-
-    metadata = config_db.get_table('DEVICE_METADATA')
-
-    if 'localhost' in metadata and 'platform' in metadata['localhost']:
-        return metadata['localhost']['platform']
-
-    # If we were unable to retrieve the platform string from Config DB, attempt
-    # to retrieve it from the machine configuration file
    machine_info = get_machine_info()
    if machine_info:
-        if machine_info.has_key('onie_platform'):
+        if 'onie_platform' in machine_info:
            return machine_info['onie_platform']
-        elif machine_info.has_key('aboot_platform'):
+        elif 'aboot_platform' in machine_info:
            return machine_info['aboot_platform']

    return None
--- a/src/sonic-py-common/sonic_py_common/logger.py
+++ b/src/sonic-py-common/sonic_py_common/logger.py
@ -1,4 +1,5 @@
 import os
+import sys
 import syslog

 """