bump minimum python vesion to 3.9 #48

	# 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: [ master ]
	pull_request: {}
	schedule: [cron: '0 12 * * 3'] # every Wednesday at noon

	jobs:
	build:

	strategy:
	matrix:
	python-version: ['3.9', '3.12']
	java: [11] # [11, 13]
	os: ['ubuntu-latest'] # ['ubuntu-latest', 'macOs-latest', 'windows-latest']
	architecture: ['x64']
	terrier: ['snapshot']

	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v2

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Setup java
	uses: actions/setup-java@v4
	with:
	distribution: 'temurin'
	java-version: ${{ matrix.java }}
	architecture: ${{ matrix.architecture }}


	- name: Install Python dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	#install this software
	pip install --timeout=120 .
	pip install pytest

	- name: All unit tests
	env:
	TERRIER_VERSION: ${{ matrix.terrier }}
	run: \|
	pytest

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