Remove unused import #212

	name: build

	on: [push, pull_request]

	jobs:
	build:

	strategy:
	fail-fast: false
	matrix:
	os: [ubuntu-latest]
	python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
	include:
	- os: ubuntu-20.04
	python-version: '3.6'
	- os: macos-latest
	python-version: '3.10'
	env:
	PY2: ${{ startsWith(matrix.python-version, 2) && 'on' \|\| 'off' }}
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install coverage pytest-cov flake8
	pip install -r requirements.txt
	- name: Test
	run: \|
	pytest --cov=modelcif --cov-branch --cov-report=xml --cov-append -v .
	if [ "${{ env.PY2 }}" == "on" ]; then
	flake8 --ignore E402,W503,W504 --exclude util/make-mmcif.py,examples/validate_mmcif.py
	else
	flake8 --ignore E402,W503,W504
	fi
	- uses: codecov/codecov-action@v4
	env:
	CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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