Fixing skill calculation for extracts that do not have feedback or difficulty #1033

	name: Code Style

	on:
	pull_request:
	push:
	branches:
	- master

	jobs:
	flake8:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repository
	uses: actions/checkout@v3
	- name: Setup Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'
	- name: Install Dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install flake8
	- name: Run flake8
	run:
	flake8 panoptes_aggregation

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