Update default python versions and improve code readability #24

	name: Test kecpkg-tools

	on: [push]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	max-parallel: 7
	fail-fast: False
	matrix:
	python-version: [2.7, 3.5, 3.6, 3.7, 3.8-dev, pypy2, pypy3]

	steps:
	- uses: actions/checkout@v1
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install OS dependencies
	run: \|
	sudo apt-get install gpg --yes

	- name: Install basic dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -U setuptools>=38.6.0 wheel>=0.31.0
	pip install -r requirements.txt

	- name: Perform Testing
	run: \|
	pip install pytest pytest-runner pytest-cov coverage
	python setup.py --quiet clean develop
	pytest --cov=kecpkg tests

	- name: Upload coverage to coveralls.io
	if: matrix.python-version == 3.6
	env:
	COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_REPO_TOKEN }}
	run: \|
	pip install coveralls
	coveralls

	- name: Check docs and distribution
	if: matrix.python-version == 3.6
	run: \|
	pip install flake8 pydocstyle check-manifest readme_renderer[md] twine>=2.0.0

	flake8 kecpkg --count --show-source --statistics
	pydocstyle kecpkg
	check-manifest
	python setup.py check -m -s
	python setup.py bdist_wheel --universal
	twine check dist/*

Provide feedback