Add pytest action #3

	name: Test notebooks
	# Run the notebooks

	on:
	# pushes to main
	push:
	branches:
	- main
	# PRs
	pull_request:
	types: [opened, synchronize, reopened, ready_for_review]

	jobs:
	build:
	if: github.event.pull_request.draft == false

	runs-on: ubuntu-latest
	env:
	# make pytest output in color
	PY_COLORS: 1

	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Set up Python 3.12
	uses: actions/setup-python@v5
	with:
	python-version: 3.12

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install --upgrade setuptools build
	python -m pip install --upgrade pytest nbmake
	python -m pip install --upgrade numpy scipy matplotlib pyyaml h5py

	- name: Build and install tenpy
	run: \|
	python -m pip install 'physics-tenpy @ git+https://github.com/tenpy/tenpy'

	- name: Run pytest on notebooks
	# Note: we exclude the dmrg mixer notebook 12, since it runs very long.
	# TODO: Excluding 14 temporarily, until it is debugged.
	run: \|
	pytest --nbmake . \
	--ignore=12_dmrg_mixer.ipynb \
	--ignore=14_segment_half_infinite.ipynb \
	-W ignore

Provide feedback