check if list is empty before getting values (#45) #93

	# Run black in --check mode on pull requests and pushes to master.
	# This workflow should fail on any black violations.
	name: isort/black Check
	on: [push, pull_request]
	jobs:
	tests:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.11
	uses: actions/setup-python@v3
	with:
	python-version: 3.11
	- name: Install dependencies
	run: \|
	set -xe
	python -VV
	python -m site
	python -m pip install --upgrade pip
	pip install -U black isort
	- name: Run black
	run: \|
	isort . && black .

Provide feedback