Added comments, import just working_set #38

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Python package

	on:
	push:
	branches: [ master, develop ]
	pull_request:
	branches: [ master, develop ]

	jobs:
	build:
	strategy:
	matrix:
	python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
	os: [ubuntu-latest, macos-latest]

	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install flake8 pytest
	python -m pip install -e .
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	if [ -f requirements_dev.txt ]; then pip install -r requirements_dev.txt; fi
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	python -m flake8 pip_chill setup.py --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 79 chars wide
	python -m flake8 pip_chill setup.py --count --max-complexity=10 --max-line-length=79 --statistics
	- name: Check with bandit
	run: \|
	python -m bandit -r pip_chill setup.py
	- name: Test with pytest
	run: \|
	python -m pytest

Provide feedback