constrain setuptools to <72 #212

	name: Python package

	on: [push]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.9', '3.10', '3.11', '3.12']

	steps:
	- uses: actions/checkout@v3

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: Cache pip
	uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Upgrade pip and install build dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install setuptools>=45,<72 wheel setuptools_scm[toml]>=6.2

	- name: Install dependencies
	run: \|
	pip install -r requirements.txt
	pip install .

	- name: Clean previous build artifacts
	run: \|
	rm -rf build dist *.egg-info

	- name: Lint with flake8
	run: \|
	pip install flake8
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

	- name: Test with pytest
	run: \|
	pip install pytest==6.2.4
	pytest

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