format + remove unreachable code #144

	name: ARC build for Windows

	on: [push]

	jobs:
	build:

	runs-on: windows-latest
	strategy:
	matrix:
	python-version: ["3.6", "3.7", "3.8", "3.9", "3.10"]

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install flake8 pytest black "black[jupyter]"
	pip install wheel twine
	pip install -r requirements.txt
	- name: Check
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 --version
	flake8 . --count --show-source --statistics
	black --version
	black -l 80 . --check
	python -m compileall -f arc/*.py
	- name: Build
	run: \|
	python setup.py build
	python setup.py sdist

Provide feedback