Apply Black formatting #152

	name: Python package

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.8, 3.9]

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	- name: Build source distribution
	run: python setup.py sdist
	- name: Format with Black
	run: \|
	pip install black
	black . --check --verbose --line-length=120
	- name: Lint with flake8
	run: \|
	pip install flake8
	flake8 . --statistics --show-source
	- name: Test with pytest
	run: \|
	pip install pytest
	pip install .
	pytest

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