trivial: resolve flake8 issue #141

	name: Build & Test

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [ '3.9',
	'3.11' ]

	name: Python ${{ matrix.python-version }}
	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 cache
	run: sudo apt-get update -qq

	- name: Install system prerequisites
	run: sudo apt-get install -yq
	xsltproc
	docbook-xsl
	docbook-xml
	zstd
	systemd
	systemd-container
	debootstrap

	- name: Upgrading pip
	run: python -m pip install --upgrade pip

	- name: Install dependencies
	run: python -m pip install
	tomlkit
	pkgconfig
	flake8
	pytest
	pylint
	mypy
	isort
	black

	- name: Build & Install
	run: \|
	./setup.py build
	./setup.py install --root=/tmp
	rm -rf build/

	- name: Test
	run: \|
	sudo $(which python3) -m pytest
	rm -rf build/

	- name: Lint (flake8)
	run: \|
	python -m flake8 ./ --statistics
	python -m flake8 debspawn/dsrun --statistics

	- name: Lint (pylint)
	run: \|
	python -m pylint -f colorized ./debspawn
	python -m pylint -f colorized ./debspawn/dsrun
	python -m pylint -f colorized ./tests ./data
	python -m pylint -f colorized setup.py install-sysdata.py

	- name: Lint (mypy)
	run: \|
	python -m mypy --install-types --non-interactive .
	python -m mypy ./debspawn/dsrun

	- name: Lint (isort)
	run: isort --diff .

	- name: Lint (black)
	run: black --diff .

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