fix flake8 #14

	# This workflow will install Python dependencies, run tests and lint with a single version of Python
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Python application

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.8
	uses: actions/setup-python@v1
	with:
	python-version: 3.8
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install codecov
	- name: Lint with flake8
	run: \|
	pip install flake8
	flake8 --indent-size 2 --max-line-length 80 */.py *.py
	- name: Run tests
	run: \|
	bash run_tests.sh
	- name: Run demo
	run: \|
	python3 demo.py --train_iteration=1000 -l=0.001 --enable_cuda=False

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