remove unused import statement #201

	name: Python package

	on: [ push ]

	jobs:
	build:
	runs-on: ubuntu-latest
	services:
	postgres:
	image: postgres:alpine
	env:
	POSTGRES_USER: postgres
	POSTGRES_HOST_AUTH_METHOD: trust
	POSTGRES_DB: spz
	ports:
	- 5432:5432
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5
	redis:
	image: redis:alpine
	ports: [ "6379:6379" ]
	options: --entrypoint redis-server
	env:
	FLASK_ENV: 'testing'
	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.9
	uses: actions/setup-python@v4
	with:
	python-version: 3.9
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install flake8 pytest
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
	- name: Test with pytest
	run: \|
	pytest

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