code style fix for better warning for sigma #30

	name: Run examlpes

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

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.11"]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v3
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install numpy flake8 pycodestyle pytest nbval pandas minisom matplotlib scikit-learn
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Running notebooks with examples
	run: \|
	pytest --nbval-lax examples/BasicUsage.ipynb
	pytest --nbval-lax examples/Clustering.ipynb
	pytest --nbval-lax examples/Classification.ipynb
	pytest --nbval-lax examples/ColorQuantization.ipynb
	pytest --nbval-lax examples/ColorSpaceMapping.ipynb
	pytest --nbval-lax examples/OutliersDetection.ipynb
	pytest --nbval-lax examples/TravellingSalesmanProblem.ipynb
	pytest --nbval-lax examples/HexagonalTopology.ipynb
	pytest --nbval-lax examples/HandwrittenDigits.ipynb
	pytest --nbval-lax examples/TimeSeries.ipynb
	pytest --nbval-lax examples/TopicModeling.ipynb
	pytest --nbval-lax examples/DemocracyIndex.ipynb

Provide feedback