enhancement #42: fix mypy #114

	name: Linter

	on: [push]

	jobs:

	black:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v3
	- uses: psf/black@stable
	with:
	options: "--check --verbose"
	version: "23.10.1"

	isort:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.10
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"
	cache: 'pip' # caching pip dependencies
	- name: Install dependencies
	run: \|
	sudo apt install -y libgirepository1.0-dev
	python -m pip install --upgrade pip
	pip install .[dev]
	- name : Check import order
	run : isort . -c

	flake8:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.10
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"
	cache: 'pip' # caching pip dependencies
	- name: Install dependencies
	run: \|
	sudo apt install -y libgirepository1.0-dev
	python -m pip install --upgrade pip
	pip install .[dev]
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# option --exit-zero can be added to this line to set these errors as warnings
	flake8 . --count --statistics --config setup.cfg

	mypy:
	runs-on: ubuntu-22.04
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.10
	uses: actions/setup-python@v4
	with:
	python-version: "3.10"
	cache: 'pip' # caching pip dependencies
	- name: Install dependencies
	run: \|
	sudo apt install -y libgirepository1.0-dev
	python -m pip install --upgrade pip
	pip install .[dev]
	- name : Lint with mypy
	run : mypy . -v

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