improving the pt selection and fix E0 bug #30

	name: Linting and code formatting

	on: []
	# Trigger the workflow on push or pull request,
	# but only for the main branch
	# push:
	# branches: []
	# pull_request:
	# branches: []


	jobs:
	build-linux:
	runs-on: ubuntu-latest

	steps:
	# Setup
	- name: Checkout
	uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	with:
	python-version: 3.8.10
	- name: Get cache
	uses: actions/cache@v2
	with:
	path: /opt/hostedtoolcache/Python/3.8.10/x64/lib/python3.8/site-packages
	# Look to see if there is a cache hit for the corresponding requirements file
	key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}

	# Install packages
	- name: Install packages required for installation
	run: python -m pip install --upgrade pip setuptools wheel
	- name: Install dependencies
	run: pip install -r requirements.txt

	# Check code
	- name: Check formatting with yapf
	run: python -m yapf --style=.style.yapf --diff --recursive .
	# - name: Lint with flake8
	# run: flake8 --config=.flake8 .
	# - name: Check type annotations with mypy
	# run: mypy --config-file=.mypy.ini .

	- name: Test with pytest
	run: python -m pytest tests

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