Add GH action to build and publish package #1

	name: Publish sdist tarball to PyPi

	on:
	push:
	tags:
	- "*"

	jobs:
	build-n-publish:
	name: Build and publish on PyPI
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	- name: Set up Python 3.9
	uses: actions/setup-python@v5
	with:
	python-version: 3.9
	- name: Build a source tarball
	run: \|
	python -m pip install --upgrade pip
	python -m pip install build
	- name: Build a source tarball
	run: \|
	python -m build
	- name: Publish distribution package to PyPI
	uses: pypa/gh-action-pypi-publish@release/v1
	with:
	password: ${{ secrets.PYPI_API_TOKEN }}
	verbose: true

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