Release version 3.1.0 #43

	# Based on https://packaging.python.org/guides/publishing-package-distribution-releases-using-github-actions-ci-cd-workflows/

	name: Publish to PyPI

	permissions: read-all

	on:
	push:
	tags:
	- '**'

	jobs:
	build-n-publish:
	name: Build and publish
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v1
	with:
	persist-credentials: false
	fetch-depth: 0

	- name: Set up Python
	uses: actions/setup-python@v1
	with:
	python-version: 3.8

	- name: Install pypa/build
	run: >-
	python -m pip install build --user
	- name: Build a binary wheel and a source tarball
	run: >-
	python -m
	build
	--sdist
	--wheel
	--outdir dist/
	.

	- name: Verify tag is annotated
	if: startsWith(github.ref, 'refs/tags')
	run: >-
	test $(git for-each-ref --format='%(objecttype)' ${GITHUB_REF}) == tag
	- name: Publish distribution to PyPI
	if: startsWith(github.ref, 'refs/tags')
	uses: pypa/gh-action-pypi-publish@717ba43cfbb0387f6ce311b169a825772f54d295 # v1.5.0
	with:
	password: ${{ secrets.PYPI_API_TOKEN }}

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