Add `backends` global variable to init.py #144

	name: Python package

	# The workflow gets triggered by pushes and pull requests
	on:
	push:
	branches: [ "main" ]
	pull_request:
	branches: [ "main" ]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.8", "3.10"]

	steps:
	# Checks out the code in the repository
	- uses: actions/checkout@v3
	with:
	submodules: true
	# Sets up Python on the machine with the right version
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	# Installs the dependencies
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install pytest
	python -m pip install scikit-learn
	python -m pip install pandas
	python -m pip install matplotlib
	- name: Compile CLUEstering modules
	working-directory: ${{github.workspace}}
	run: \|
	cmake -S . -B build -DCMAKE_BUILD_TYPE=Release && cmake --build build
	cmake -B build
	- name: Run tests of the Python library
	working-directory: ${{github.workspace}}/tests
	run: \|
	python3 -m pytest ./*.py

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