Merge branch 'dev' into optimize_status2019 #1225

	name: "CI"

	on: {push: {branches: ['**']}, pull_request: {branches: [dev, master]}}

	jobs:
	build:
	name: ${{ matrix.os.name }}
	runs-on: ${{ matrix.os.image }}

	strategy:
	matrix:
	os:
	- {image: ubuntu-latest, name: Linux}
	- {image: windows-latest, name: Windows}
	- {image: macos-latest, name: macOS}
	max-parallel: 4
	fail-fast: false

	steps:
	- uses: "actions/checkout@main"
	- uses: "actions/setup-python@main"
	with:
	python-version: \|
	3
	3.9
	3.10
	3.11
	- name: "Install dependencies"
	run: \|
	python -mpip install --progress-bar=off nox
	python --version
	pip --version
	nox --version
	- name: "Run custom checks"
	run: "python -m nox -s check"
	env:
	PLATFORM: ${{ matrix.os.image }}
	- name: "Check with `black`"
	run: "python -m nox -s black"
	env:
	PLATFORM: ${{ matrix.os.image }}
	- name: "Check with `flake8`"
	run: "python -m nox -s flake8"
	env:
	PLATFORM: ${{ matrix.os.image }}
	- name: "Check with `isort`"
	run: "python -m nox -s isort"
	env:
	PLATFORM: ${{ matrix.os.image }}
	- name: "Build and check for packaging errors"
	run: "python -m nox -s build"
	env:
	PLATFORM: ${{ matrix.os.image }}
	- name: "Install the package"
	run: "python -m nox -s install"
	env:
	PLATFORM: ${{ matrix.os.image }}

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