Add controlled changes at program #413

	# This is a basic workflow to help you get started with Actions

	name: Check code style

	# Controls when the workflow will run
	on:
	# Triggers the workflow on push or pull request events
	[ push, pull_request ]

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:

	# This workflow contains a single job called "style"
	style:

	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# A strategy creates a build matrix for your jobs
	strategy:

	# You can define a matrix of different job configurations
	matrix:

	# Each option you define in the matrix has a key and value
	python-version: [ 3.9 ]

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- name: Set up Git repository
	uses: actions/checkout@v2

	# Setup Python with version from matrix
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	# Install requirements
	- name: Install requirements

	# Runs command-line programs using the operating system's shell
	run: \|
	python -m pip install --upgrade pip wheel setuptools
	python -m pip install -r requirements.txt
	python -m pip list

	# Install pre-commit from .pre-commit-config.yaml
	- name: Install pre-commit
	run: \|
	pre-commit install

	# Run pre-commit on all the files in the repo
	- name: Run pre-commit
	run: \|
	pre-commit run --all-files --color always --verbose --show-diff-on-failure

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