pyproject.toml: automatically generate version number from git #45

	name: Publish BTL to PyPi
	on: push

	jobs:
	build-and-publish:
	name: Build and publish BTL to PyPI
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.x"

	- name: Install build environment
	run: python3 -m pip install build --user

	- name: Install requirements
	run: pip install --no-cache-dir -r requirements.txt

	- name: Build a wheel
	run: python3 -m build

	- name: Publish to PyPI
	if: startsWith(github.ref, 'refs/tags')
	uses: pypa/gh-action-pypi-publish@release/v1
	with:
	password: ${{ secrets.PYPI_API_TOKEN }}

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