Bump codecov/codecov-action from 3 to 4 #456

	name: Linters

	on:
	push:
	pull_request:

	jobs:
	black:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install black codespell
	- name: Check with black
	run: black --check .

	codespell:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: codespell-project/actions-codespell@master
	with:
	skip: '*.po'
	ignore_words_list: ba,te,deltion,dedent,dedented

	mypy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python
	uses: actions/setup-python@v5
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install mypy
	pip install -r requirements.txt
	pip install urwid twisted watchdog "jedi >=0.16" babel "sphinx >=1.5" numpy
	pip install types-backports types-requests types-setuptools types-toml types-pygments
	- name: Check with mypy
	# for now only run on a few files to avoid slipping backward
	run: mypy

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