Fix some issues in Python code and notebooks #16

	name: Build and run Python unit tests

	on: push
	permissions:
	contents: read
	jobs:
	test-linux:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.8
	uses: actions/setup-python@v3
	with:
	python-version: '3.8'
	- name: Add system deps and exiftool
	run: \|
	sudo apt-get update
	sudo apt-get install libzbar0 make perl
	wget https://cpan.metacpan.org/authors/id/E/EX/EXIFTOOL/Image-ExifTool-12.76.tar.gz
	tar -xzf Image-ExifTool-12.76.tar.gz
	pushd Image-ExifTool-12.76/
	perl Makefile.PL
	make test
	sudo make install
	popd
	- name: Add conda to system path
	run: \|
	# $CONDA is an environment variable pointing to the root of the miniconda directory
	echo $CONDA/bin >> $GITHUB_PATH
	- name: Install dependencies
	run: \|
	source "$CONDA/etc/profile.d/conda.sh"
	hash -r
	conda config --set always_yes yes --set changeps1 no
	conda update -q conda
	conda update -n base conda
	conda info -a
	conda env create -f micasense_conda_env.yml
	conda activate micasense
	- name: Test with pytest
	run: \|
	source "$CONDA/etc/profile.d/conda.sh"
	conda activate micasense
	git lfs install
	git lfs pull
	pytest --junit-xml=test-results.xml

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