bump python to 3.9 #8

	name: Python Lint

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

	defaults:
	run:
	working-directory: src

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.8
	uses: actions/setup-python@v4
	with:
	python-version: 3.8
	- name: Install dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install libdbus-glib-1-dev libgirepository1.0-dev
	python -m pip install --upgrade pip
	pip install flake8 pytest wheel
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
	- name: Lint with Black
	uses: psf/black@stable
	with:
	options: "--check --verbose --diff"
	src: "."
	version: "22.3.0"

Provide feedback