new version of the background clipping. Appears to work for general c… #120

	name: Build and Test [Python 3.9]

	on: push

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.9]

	steps:
	- uses: actions/checkout@v2
	- name: Build using Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- name: install dependencies [pip]
	run: \|
	python -m pip install pip --upgrade pip
	pip install pytest
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	pip install -e .

	- name: run unit tests [pytest]
	run: pytest

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