Add release workflow. #1

	name: Publish to PyPI

	on:
	# Trigger this workflow when a new tag is pushed
	push:
	tags:
	- '*'

	jobs:
	build-and-publish:
	runs-on: ubuntu-latest

	strategy:
	matrix:
	python-version: ["3.9", "3.10", "3.11", "3.12"]

	steps:
	# Step 1: Check out the repository
	- name: Check out code
	uses: actions/checkout@v3

	# Step 2: Set up Python environment with matrix
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	# Step 3: Install build dependencies
	- name: Install build dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install setuptools wheel twine

	# Step 4: Build the package (wheel and source distribution)
	- name: Build the package
	run: \|
	python setup.py sdist bdist_wheel

	# Step 5: Publish the package to PyPI (only run once for one version)
	- name: Publish to PyPI
	if: matrix.python-version == '3.9' # Publish only once, on Python 3.9
	env:
	PYPI_API_TOKEN: ${{ secrets.PYPI_API_TOKEN }} # Use the PyPI token stored in GitHub Secrets
	run: \|
	python -m twine upload dist/*

	# Step 6: Clean up the build artifacts
	- name: Remove build artifacts
	if: matrix.python-version == '3.9' # Clean up once after publishing
	run: rm -rf dist build *.egg-info

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