Fix 202 issues #845

	name: Tests, linter and coverage

	on:
	push:
	branches:
	- main
	- 'stable/**'
	pull_request:
	branches:
	- main
	- 'stable/**'

	jobs:
	tests:
	runs-on: ubuntu-latest
	strategy:
	max-parallel: 4
	matrix:
	python-version: [3.7, 3.9]
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}
	- name: Set up tox env
	run: \|
	python -m pip install --upgrade pip
	pip install tox
	pver=${{ matrix.python-version }}
	tox_env="-epy${pver/./}"
	echo tox_env
	echo TOX_ENV=$tox_env >> $GITHUB_ENV
	- name: Test using tox envs
	run: \|
	tox -vv ${{ env.TOX_ENV }}
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.9
	uses: actions/setup-python@v2
	with:
	python-version: '3.9'
	- name: Install tox
	run: \|
	python -m pip install --upgrade pip
	pip install tox
	- name: Run styles check
	run: tox -elint

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