drop python<=3.7 support #304

	# CI build:
	# Test on each supported Python version and full Tox build
	# on one target version for static checks and documentation.

	name: CI
	on:
	push:
	branches:
	- master
	tags-ignore:
	- '*'
	pull_request:

	jobs:
	matrix:
	strategy:
	matrix:
	python-version: ["3.7", "3.8", "3.9", "3.10"]
	name: Pytest on ${{matrix.python-version}}
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{matrix.python-version}}
	uses: actions/setup-python@v2
	with:
	python-version: ${{matrix.python-version}}
	- name: Install package
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements/tests
	pip install .
	- name: Run test suite
	run: pytest

	full-build:
	name: Full 3.11 build
	runs-on: ubuntu-20.04
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: "3.11"
	- name: Install package
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements/dev
	pip install .
	- name: Run tox environments
	run: tox

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