Bump actions/cache from 3 to 4 #414

	name: Python package

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest
	env:
	POETRY_VIRTUALENVS_CREATE: false
	strategy:
	max-parallel: 4
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Set up Poetry cache for Python dependencies
	uses: actions/cache@v4
	if: startsWith(runner.os, 'Linux')
	with:
	path: ~/.cache/pypoetry
	key: ${{ runner.os }}-poetry-${{ hashFiles('**/poetry.lock') }}
	restore-keys: ${{ runner.os }}-poetry-
	- name: Install Poetry
	run: \|
	curl -sSL https://install.python-poetry.org \| POETRY_HOME="$HOME/.poetry" python - --yes
	echo "$HOME/.poetry/bin" >> $GITHUB_PATH
	- name: Install dependencies
	run: \|
	poetry install --no-interaction
	poetry show --tree
	- name: Test poetry build step
	run: poetry build
	- name: Test with pytest
	run: \|
	PACKAGENAME=$(poetry version \| awk {'print $1'}) && pytest --cov=$PACKAGENAME/ tests -v
	- name: Lint with flake8
	run: \|
	PACKAGENAME=$(poetry version \| awk {'print $1'}) && flake8 $PACKAGENAME/ tests/
	- name: Type check with mypy
	run: \|
	PACKAGENAME=$(poetry version \| awk {'print $1'}) && mypy $PACKAGENAME/
	- name: Codecov
	run: \|
	codecov --token=${{ secrets.CODECOV_TOKEN }}

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