replace pkg_resources for python 3.12 #179

	name: Lint
	on: [pull_request]

	jobs:
	lint:
	strategy:
	matrix:
	python-version: ['3.10']
	os: [ubuntu-latest]
	runs-on: ${{ matrix.os }}
	timeout-minutes: 30
	steps:
	- uses: actions/checkout@v2
	- name: Cache for pip
	uses: actions/cache@v1
	id: cache-pip
	with:
	path: ~/.cache/pip
	key: ${{ matrix.os }}-cache-pip

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}

	- name: Critical lint
	run: \|
	pip install flake8
	# https://michaelcurrin.github.io/dev-cheatsheets/cheatsheets/python/linting/flake8.html
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics

	- name: Style lint
	run: \|
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --ignore=C901,W503,W504,E741 --statistics > current.txt
	git fetch origin
	git checkout origin/"$GITHUB_BASE_REF"
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --ignore=C901,W503,W504,E741 --statistics > base.txt
	if diff base.txt current.txt \| grep "^> ./"; then
	false
	fi

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