Bump actions/checkout from 3 to 4 #1271

	name: (TET) Python coding style

	on:
	push:
	branches: [main]
	pull_request:
	paths:
	- '.github/workflows/te-py-coding-style.yml'
	workflow_dispatch:

	env:
	DEBUG: 1

	jobs:
	py-coding-style:
	name: Python coding style
	runs-on: ubuntu-latest

	steps:
	- name: Check out repository
	uses: actions/checkout@v4

	- name: Set up Python 3.8
	uses: actions/setup-python@v4
	with:
	python-version: '3.8'

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

	- name: Install dependencies
	run: cd backend/tet && pip install -r requirements.txt -r requirements-dev.txt

	- name: (TET) Formatting
	run: cd backend/tet && black --check .

	- name: (TET) Linting
	run: cd backend/tet && flake8

	- name: (TET) Import sorting
	run: cd backend/tet && isort -c .

	- name: (Shared) Formatting
	run: cd backend/shared && black --check .

	- name: (Shared) Linting
	run: cd backend/shared && flake8

	- name: (Shared) Import sorting
	run: cd backend/shared && isort -c .

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