functions for transforming problems #305

	name: Python code quality checks

	on:
	push:
	branches:
	- main
	pull_request:
	branches: '**'

	jobs:
	lint:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.7
	uses: actions/[email protected]
	with:
	python-version: 3.7
	- name: Install poetry
	run: pip install poetry
	- name: Install requirements
	run: poetry install
	- name: Lint with flake8
	run: poetry run flake8
	- name: Lint with black
	run: poetry run black --check exact_cover/ tests/ tools/ build.py
	- name: Check examples in README
	run: poetry run doctest

Provide feedback