CI: Don't install packages from apt #785

	# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: Python package

	on:
	push:
	branches-ignore:
	- master
	pull_request:

	concurrency:
	group: ${{ github.ref }}
	cancel-in-progress: true

	jobs:
	pytest:

	runs-on: ubuntu-latest
	if: always()
	strategy:
	matrix:
	python-version: ["3.8", "3.9", "3.10", "3.x"]
	fail-fast: false

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	- name: Install package
	run: \|
	pip install -e .[calc,tests]
	- name: Test with pytest
	run: \|
	pytest -vv --long --cov


	# test with oldest supported version of packages
	pytest-oldest-xarray:

	runs-on: ubuntu-latest
	if: always()
	strategy:
	matrix:
	python-version: ["3.8"]
	fail-fast: false

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install xarray~=2023.1.0 pandas~=1.4.0
	- name: Install package
	run: \|
	pip install -e .[tests]
	- name: Test with pytest
	run: \|
	pytest -vv --long --cov

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