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Key the linters' venv cache on the exact Python version #3184

	# Check that code is formatted consistently
	#
	# Available Python versions:
	# https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

	name: linters
	on:
	push:
	branches:
	- master
	pull_request:

	jobs:
	tests:
	name: ${{ matrix.name }}
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	include:
	- {name: Linux314, python: '3.14', os: ubuntu-latest}
	steps:
	- name: Check out repository
	uses: actions/checkout@v4

	- name: Set up Python
	id: setup-python
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python }}

	# The cached venv links to the exact interpreter it was built with,
	# so the key includes the resolved patch version (for example, 3.14.10).
	- name: Restore cache
	id: cache
	uses: actions/cache@v4
	with:
	path: ./venv
	key: ${{ matrix.name }}-${{ steps.setup-python.outputs.python-version }}-pip-${{ hashFiles('requirements.txt') }}
	restore-keys: \|
	${{ matrix.name }}-${{ steps.setup-python.outputs.python-version }}-pip-

	- name: Install dependencies
	if: steps.cache.outputs.cache-hit != 'true'
	run: \|
	python -m venv venv
	. venv/bin/activate
	python -m pip install --upgrade pip
	python -m pip install -r requirements.txt

	- name: Check code style
	run: \|
	. venv/bin/activate
	python -m ruff format --check
	python -m ruff check

	- name: Check directory layout
	run: \|
	. venv/bin/activate
	python .github/workflows/dircheck.py