add smart meter L+G E570 #89

	name: Python code checks

	on:
	push:
	branches:
	- "**"
	pull_request:
	branches:
	- master
	workflow_dispatch:

	jobs:
	check_python_code:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	python-version: ["3.8", "3.9", "3.10"]
	defaults:
	run:
	working-directory: backend

	name: Running Python code checks with Python ${{ matrix.python-version }}
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	cache: "pipenv"
	cache-dependency-path: backend/Pipfile.lock
	- name: Install pipenv
	run: \|
	python -m pip install --upgrade pip pipenv
	python --version; python -m pip --version; pipenv --version
	- name: Setup project with pipenv
	run: \|
	pipenv --python ${{ matrix.python-version }} install --dev

	- name: Check code style
	run: \|
	pipenv run format_check
	- name: Check import order
	run: \|
	pipenv run isort_check
	- name: Lint with pylint
	run: \|
	pipenv run lint_check
	- name: Run unit tests
	run: \|
	pipenv run test

Provide feedback