Fixes path traversal issue #76

	name: Flake8
	on:
	push:
	paths:
	- '**.py'
	branches:
	- main
	- 'ver_*'
	pull_request:
	paths:
	- '**.py'
	branches:
	- main
	- 'ver_*'

	jobs:
	analyze:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.9']
	steps:
	- uses: actions/checkout@v3
	- 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
	python -m pip install flake8
	pip install -r requirements.txt
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 standalone --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 --max-line-length=127 --statistics

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