Fix fitting and optimization steps #201

	name: Run all tox python3

	on:
	pull_request:
	push:
	branches:
	- master

	jobs:
	tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ['3.8', '3.9', '3.10']

	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 setuptools
	pip install tox-gh-actions

	- name: Run tox
	run: \|
	tox

	lint:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.8
	uses: actions/setup-python@v4
	with:
	python-version: 3.8

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools
	pip install tox

	- name: Run tox
	run: \|
	tox -elint

	coverage:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python 3.8
	uses: actions/setup-python@v4
	with:
	python-version: 3.8

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip setuptools
	pip install tox

	- name: Run tox
	run: \|
	tox -ecoverage

	- name: Upload to codecov
	uses: codecov/codecov-action@v2
	with:
	env_vars: OS,PYTHON
	fail_ci_if_error: false
	files: ./coverage.xml
	flags: pytest
	verbose: true

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