Add unit tests and partially rewrite method to pass tests. #202

	name: Code Quality

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python
	uses: actions/setup-python@v2
	- name: Install flake
	run: \|
	python -m pip install --upgrade pip
	pip install flake8
	- name: Run flake
	run: \|
	flake8 pym

Provide feedback