[Python] Issue with Path in Github Actions using Python

I have a github actions workflow where I run many different files, for which I append to the PYTHONPATH all the paths I need for the scripts to work. To do so, I created another program called workflow_import.py in the same directory as my main scripts where I simply add a function of this sort:

def load_modules():
if 'SOURCES_PATH' in os.environ:
print('SOURCES_PATH') # debug line
sources_path_list = eval(os.environ['SOURCES_PATH'])
sys.path.extend(sources_path_list)


I add this function to each of my scripts as in

from workflow_import import load_modules


Herein, I work with a environment variable called 'SOURCES_PATH' (aka. variables.SOURCES_PATH, don't know if saving it as a secret is more convenient) storing all the modules' location. Running the main script doesn't invoke any ModuleNotFindError. However, one of my scripts generates a new subfolder called \ref, and since it most certainly changes to that directory all of the subsequent scripts fail to find workflow_import.py or any other module from load_modules().

I thought this was due to the sys.path() changing once \ref is created, but I don't know how to make it so it stays consistent within the workflow. As an example, I run the scripts in this manner:

- name: Library Test
shell: powershell
run: |
& $envYTHON_ENV_PATH ./libraries/library/tests/generate_reffiles.py


Where PYTHON_ENV_PATH is another secret containing the python.exe path of my desired environment.

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