removed unused import #79

	name: linter

	on: [push]

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

	steps:
	- name: System Dependencies
	run: \|
	sudo apt install -y build-essential \
	libcairo2-dev \
	pkg-config \
	python3-dev \
	python3-openssl
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}

	- name: Cache Python dependencies
	uses: actions/cache@v3
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-pip-${{ hashFiles('pip/*.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: \|
	python3.9 -m pip install --upgrade pip
	if [ -f pip/cpu_requirements.txt ]; then pip install -r pip/cpu_requirements.txt; fi

	- name: Install ruff
	run: \|
	python3.9 -m pip install ruff

	- name: Lint with ruff
	run: \|
	# Check all lint rules
	python3.9 -m ruff check atomsci/

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