improve startup error message when bind on http port fails #111

	name: vLEI

	on:
	push:
	branches:
	- main
	- dev
	pull_request:
	jobs:
	test:

	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.19
	uses: actions/setup-python@v2
	with:
	python-version: 3.10.4
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Run tests
	run: \|
	pytest

	coverage:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python 3.10.4
	uses: actions/setup-python@v2
	with:
	python-version: 3.10.4
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install pytest pytest-cov codecov
	if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
	- name: Run core vLEI tests
	run: \|
	pytest --cov=./ --cov-report=xml
	codecov

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