build: use poetry for reproducible virtual environments #903

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	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
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	name: Format

	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.9
	uses: actions/setup-python@v4
	with:
	python-version: 3.9
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install tox
	python -m pip install poetry --user
	echo "PATH=$PATH:~/.local/bin" >> "$GITHUB_ENV"
	- name: Check formatting
	run: tox -e fmt
	- name: Run pylint
	run: tox -e lint

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