CHANGES.md and NEXT_CHANGES.md #619

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Continuous integration

	# Run the CI on any direct push to a branch on this repository or on pull request
	# branches
	on:
	push:
	branches:
	- '**'
	pull_request:
	branches:
	- 'main'

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.7", "3.8", "3.9", "3.10"]

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Update submodules
	run: \|
	git submodule update --init --recursive --depth=1
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
	- name: Set PYTHONPATH
	run: \|
	echo "PYTHONPATH=src" >> $GITHUB_ENV
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	invoke lint
	- name: Check black formatting of code, tests and development scripts
	run: \|
	invoke check-code-format
	- name: Test with pytest
	run: \|
	invoke test --external

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