Update widget.py #163

	name: Test

	on:
	push:
	pull_request:
	workflow_dispatch:

	jobs:
	test:
	runs-on: ${{ matrix.os }}

	defaults:
	run:
	shell: bash -l {0}

	strategy:
	matrix:
	os: [ubuntu-latest]
	python-version: [3.9]

	steps:
	- name: Checkout nglview repository
	uses: actions/checkout@v2

	- name: Cache conda
	uses: actions/cache@v3
	env:
	CACHE_NUMBER: 2 # Increase this value to reset cache if .github/nglview-gha.yml has not changed
	with:
	path: ~/conda_pkgs_dir
	key:
	${{ matrix.os }}-conda-${{ env.CACHE_NUMBER }}-${{ hashFiles('.github/nglview-gha.yml') }}

	- name: Set up conda environment
	uses: conda-incubator/setup-miniconda@v2
	with:
	auto-update-conda: true
	auto-activate-base: false
	activate-environment: nglview-gha
	environment-file: .github/nglview-gha.yml
	mamba-version: "*"
	channels: conda-forge
	channel-priority: true
	python-version: ${{ matrix.python-version }}
	use-only-tar-bz2: false # https://github.com/conda-incubator/setup-miniconda/issues/264

	- name: Run tests
	run: \|
	python -m pytest -vs nglview/tests --cov=nglview --cov-report=html --disable-pytest-warnings

	- name: Check installation with pip
	run: \|
	python setup.py sdist
	pip install dist/*gz
	python -c "import nglview as nv; print(nv.__version__)"

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