diff --git a/makefiles/virtualenv/include.mk b/makefiles/virtualenv/include.mk
new file mode 100644
index 0000000..97abb1c
--- /dev/null
+++ b/makefiles/virtualenv/include.mk
@@ -0,0 +1,154 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2017-2024 Open Networking Foundation Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http:#www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# 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.
+# -----------------------------------------------------------------------
+# SPDX-FileCopyrightText: 2017-2024 Open Networking Foundation Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+# -----------------------------------------------------------------------
+# Intent:
+#   This makefile defines dependencies that will install a python virtualenv
+#   beneath $(sandbox)/.venv/.  The $(activate) macro is used to source
+#   .venv/bin/activate allowing command python and pip to be used.
+# -----------------------------------------------------------------------
+# Usage:
+#   include makefiles/virtualenv/include.mk
+#
+# Makefile Target Dependencies:
+#     tgt : $(venv-activate-patched)      # python 3.10+ local use
+#     tgt : $(venv-activate-script)       # python < v3.8
+#
+# Make definitions (convenience macros used for command access)
+#   PIP    := $(activate) && pip          # invoke pip from virtualenv
+#   PYTHON := $(activate) && python       # invoke python from virtualenv
+#
+# Target declaration and command invocation:
+#   my-target : $(venv-activate-script)   # dependency installs virtualenv
+#   <tab>$(PYTHON) --version              # invoke python with arguments
+#	<tab>$(PYTHON) my-command.py
+#	<tab>$(activate) && pip install foobar
+#
+#   % make my-target                      # Invoke make target from shell
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##-------------------##
+##---]  GLOBALS  [---##
+##-------------------##
+.PHONY: venv venv-patched
+
+##------------------##
+##---]  LOCALS  [---##
+##------------------##
+venv-name            ?= .venv#                            # default install directory
+venv-abs-path        := $(sandbox-root)/$(venv-name)#     # Install directory
+venv-activate-bin    := $(venv-name)/bin#                 # no whitespace
+venv-activate-script := $(venv-activate-bin)/activate#    # dependency
+
+##--------------------##
+##---]  INCLUDES  [---##
+##--------------------##
+include $(onf-mk-dir)/virtualenv/requirements-txt.mk
+include $(onf-mk-dir)/virtualenv/version.mk
+
+# ------------------------------------------------------------------------
+# Intent: Define macro activate= to access virtualenv activation script.
+## -----------------------------------------------------------------------
+#  Usage:
+#    - $(activate) && python             # Syntax inlined within a target
+#    - PYTHON := $(activate) && python   # Define a named command macro
+# ------------------------------------------------------------------------
+activate             ?= set +u && source $(venv-activate-script) && set -u
+
+## -----------------------------------------------------------------------
+## Intent: Explicit named installer target w/o dependencies.
+##         Makefile targets should depend on venv-activate-script.
+## -----------------------------------------------------------------------
+venv := $(null)
+venv += $(venv-activate-script)#        # virtualenv -p python3
+venv += $(venv-requirements-txt)#       # pip install -r requirements.txt
+
+venv: $(venv)
+
+venv-patched : $(venv-activate-patched)
+
+## -----------------------------------------------------------------------
+## Intent: Activate script path dependency
+## Usage:
+##    o place on the right side of colon as a target dependency
+##    o When the script does not exist install the virtual env and display.
+## -----------------------------------------------------------------------
+$(venv-activate-script):
+
+	$(call banner-enter,(virtualenv -p python))
+
+	virtualenv -p python3 $(venv-name)
+	$(activate) && python -m pip install --upgrade pip
+	$(activate) && pip install --upgrade setuptools
+
+	$(HIDE)$(MAKE) --no-print-directory venv-requirements venv-version
+
+	$(call banner-leave,(virtualenv -t python))
+
+## -----------------------------------------------------------------------
+## Intent: Explicit named installer target w/o dependencies.
+##         Makefile targets should depend on venv-activate-script.
+## -----------------------------------------------------------------------
+venv-activate-patched := $(venv-activate-script).patched
+venv-activate-patched : $(venv-activate-patched)
+$(venv-activate-patched) : $(venv-activate-script)
+	$(call banner-enter,Target $@)
+	$(onf-mk-dir)/virtualenv/python_310_migration.sh
+	touch $@
+	$(call banner-leave,Target $@)
+
+## -----------------------------------------------------------------------
+## Intent: Explicit named installer target w/o dependencies.
+##         Makefile targets should depend on venv-activate-script.
+## -----------------------------------------------------------------------
+# venv         : $(venv-activate-script)
+
+## -----------------------------------------------------------------------
+## Intent: Revert installation to a clean checkout
+## -----------------------------------------------------------------------
+sterile :: clean
+	$(RM) -r "$(venv-abs-path)"
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+help ::
+	@printf '  %-33.33s %s\n' 'venv'         \
+	  'Create a python virtual environment'
+	@printf '  %-33.33s %s\n' 'venv-help'    \
+	  'Extended target help'
+
+## -----------------------------------------------------------------------
+## -----------------------------------------------------------------------
+.PHONY: venv-help
+venv-help ::
+	@printf '  %-33.33s %s\n' 'venv-patched' \
+	  'venv patched for v3.10.6+ use'
+
+	@printf '  %-33.33s %s\n' 'venv' \
+	  'Create a python virtual environment'
+	@printf '  %-33.33s %s\n' '  venv-name' \
+	  'virtualenv installation directory name'
+
+# include $(onf-mk-dir)/virtualenv/todo.mk
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# [EOF]