Replace pipenv with uv

Why these changes are being introduced:

uv is a modern python project and dependency manager with increasingly
attractive features and community support.  By contrast, pipenv is
feeling a bit stale in terms of features, community support, and
even performance.

Additionally, without going into great detail here, uv is part of
a larger ecocsystem of python tooling that work very well together,
including uv, ruff, and ty (type checking).

How this addresses that need:
* Virtually anywhere pipenv was used, uv is now used
* Makefile updated to use uv
* Makefile installation recipes updated to utilize uv best
* Dockerfile updated to align with uv installation approaches

Side effects of this change:
* Before this template code can be used by a project,
Github actions will need to be updated to intelligently
use pipenv or uv depending on the project as we incrementally
convert them.

Relevant ticket(s):
* https://mitlibraries.atlassian.net/browse/IN-1298

Author: ghukill

.pre-commit-config.yaml

@@ -1,29 +1,29 @@
 default_language_version:
-  python: python3.12 # set for project python version
+  python: python3.13 # set for project python version
 repos:
   - repo: local
     hooks:
       - id: black-apply
         name: black-apply
-        entry: pipenv run black
+        entry: uv run black
         language: system
         pass_filenames: true
         types: ["python"]
       - id: mypy
         name: mypy
-        entry: pipenv run mypy
+        entry: uv run mypy
         language: system
         pass_filenames: true
         types: ["python"]
         exclude: "tests/"
       - id: ruff-apply
         name: ruff-apply
-        entry: pipenv run ruff check --fix
+        entry: uv run ruff check --fix
         language: system
         pass_filenames: true
         types: ["python"]
       - id: pip-audit
         name: pip-audit
-        entry: pipenv run pip-audit
+        entry: uv run pip-audit
         language: system
         pass_filenames: false

.python-version

@@ -1 +1 @@
-3.12
+3.13

Dockerfile

@@ -1,12 +1,15 @@
-FROM public.ecr.aws/lambda/python:3.12
+FROM public.ecr.aws/lambda/python:3.13
 
-# Copy function code
+# Install uv
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+
+# Copy project files
 COPY . ${LAMBDA_TASK_ROOT}/
 
 # Install dependencies
-RUN pip3 install pipenv
-RUN pipenv requirements > requirements.txt
-RUN pip3 install -r requirements.txt --target "${LAMBDA_TASK_ROOT}"
+RUN cd ${LAMBDA_TASK_ROOT} && \
+    uv export --format requirements-txt --no-hashes --no-dev > requirements.txt && \
+    uv pip install -r requirements.txt --target "${LAMBDA_TASK_ROOT}" --system
 
 # Default handler. See README for how to override to a different handler.
 CMD [ "lambdas.my_function.lambda_handler" ]

Makefile

@@ -5,28 +5,40 @@ help: # Preview Makefile commands
 	@awk 'BEGIN { FS = ":.*#"; print "Usage:  make <target>\n\nTargets:" } \
 /^[-_[:alpha:]]+:.?*#/ { printf "  %-15s%s\n", $$1, $$2 }' $(MAKEFILE_LIST)
 
-#######################
-# Dependency commands
-#######################
+# ensure OS binaries aren't called if naming conflict with Make recipes
+.PHONY: help venv install update test coveralls lint black mypy ruff safety lint-apply black-apply ruff-apply
 
-install: # Install Python dependencies
-	pipenv install --dev
-	pipenv run pre-commit install
+##############################################
+# Python Environment and Dependency commands
+##############################################
 
-update: install # Update Python dependencies
-	pipenv clean
-	pipenv update --dev
+install: .venv .git/hooks/pre-commit # Install Python dependencies and create virtual environment if not exists
+	uv sync --dev
+
+.venv: # Creates virtual environment if not found
+	@echo "Creating virtual environment at .venv..."
+	uv venv .venv
+
+.git/hooks/pre-commit: # Sets up pre-commit hook if not setup
+	@echo "Installing pre-commit hooks..."
+	uv run pre-commit install
+
+venv: .venv # Create the Python virtual environment
+
+update: # Update Python dependencies
+	uv lock --upgrade
+	uv sync --dev
 
 ######################
 # Unit test commands
 ######################
 
 test: # Run tests and print a coverage report
-	pipenv run coverage run --source=lambdas -m pytest -vv
-	pipenv run coverage report -m
+	uv run coverage run --source=lambdas -m pytest -vv
+	uv run coverage report -m
 
 coveralls: test # Write coverage data to an LCOV report
-	pipenv run coverage lcov -o ./coverage/lcov.info
+	uv run coverage lcov -o ./coverage/lcov.info
 
 ####################################
 # Code quality and safety commands
@@ -35,23 +47,21 @@ coveralls: test # Write coverage data to an LCOV report
 lint: black mypy ruff safety # Run linters
 
 black: # Run 'black' linter and print a preview of suggested changes
-	pipenv run black --check --diff .
+	uv run black --check --diff .
 
 mypy: # Run 'mypy' linter
-	pipenv run mypy .
+	uv run mypy .
 
 ruff: # Run 'ruff' linter and print a preview of errors
-	pipenv run ruff check .
+	uv run ruff check .
 
-safety: # Check for security vulnerabilities and verify Pipfile.lock is up-to-date
-	pipenv run pip-audit
-	pipenv verify
+safety: # Check for security vulnerabilities
+	uv run pip-audit
 
-lint-apply: # Apply changes with 'black' and resolve 'fixable errors' with 'ruff'
-	black-apply ruff-apply 
+lint-apply: black-apply ruff-apply # Apply changes with 'black' and resolve 'fixable errors' with 'ruff'
 
 black-apply: # Apply changes with 'black'
-	pipenv run black .
+	uv run black .
 
 ruff-apply: # Resolve 'fixable errors' with 'ruff'
-	pipenv run ruff check --fix .
+	uv run ruff check --fix .