Fix the thrown exception message when trying to load imas_core #4

	name: linting-and-code-formatting

	on: push

	jobs:
	build:

	runs-on: ubuntu-latest

	steps:
	- name: Checkout IMAS-Python sources
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.x'

	- name: Display Python version
	run: python -c "import sys; print(sys.version)"

	- name: Install the code linting and formatting tools
	run: pip install --upgrade 'black >=24,<25' flake8

	- name: Check formatting of code with black
	run: black --check imas

	- name: Check linting with flake8
	run: flake8 imas

Provide feedback