close-all-files uses too much resources #88

	name: Test

	on: [push, pull_request]

	jobs:
	test:
	runs-on: ubuntu-20.04
	strategy:
	matrix:
	python-version:
	- 3.6
	- 3.7
	- 3.8
	- 3.9
	- "3.10"
	- 3.11
	- 3.12
	fail-fast: false
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: Update pip and setuptools
	run: \|
	python -m pip install --upgrade pip
	python -m pip install setuptools
	- name: Install dependencies
	run: \|
	python -m pip install -e .
	python -m pip install -r test-requirements.txt
	- name: Install old numpy
	run: \|
	python -m pip install 'numpy<1.17'
	if: ${{ matrix.python-version >= '3.4' && matrix.python-version < '3.7' }}
	- name: Run tests
	run: \|
	python -m nose2 --verbosity=3

Provide feedback