Add signatures #875

	name: Python package

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

	jobs:
	lint:
	runs-on: ubuntu-latest
	timeout-minutes: 20
	strategy:
	matrix:
	python-version: [3.8]

	steps:
	- name: Check out repository code
	uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip flake8

	- 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
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

	format:
	runs-on: ubuntu-latest
	timeout-minutes: 20
	strategy:
	matrix:
	python-version: [3.8]
	if: ${{ github.ref == 'refs/heads/master' }}

	steps:
	- name: Check out repository code
	uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip black isort

	- name: Format with black
	run: black .

	- name: Format imports with isort
	run: isort .

	- name: Commit changes if any
	run: \|
	git config user.name "GitHub Actions"
	git config user.email "[email protected]"
	if output=$(git status --porcelain) && [ ! -z "$output" ]; then
	git commit -m "style: Automatic code formatting" -a
	git push
	fi

Provide feedback