`conda info -a` not showing the PATH I am trying to add

I am working inside a Conda environment and trying to add a location to PATH.

The reason is that I want to import a script in the parent directory of the script being run.

Directory I am working in:
C:/Users/.../gompertz_forecasting

Directory of script (being run):
c:/Users/.../gompertz_forecasting/src/pre_processing/pre_processing_factors.py

Directory of script imported:
c:/Users/.../gompertz_forecasting/src/staging/generate_factors.py

I am importing using the command
from src.staging.generate_factors import x,y,z

However, I keep getting the message "ModuleNotFoundError: No module named 'src'"
even though I have added the directory to both the Path and PYTHONPATH via the Windows System Properties.

So, while the path has been added, I still cannot import the module.
When I print conda info -a the added path fails to show up as part of PATH, which is what I believe the issue is.

Expected solution is to simply run
conda develop C:\Users\...\gompertz_forecasting\src but this does not add the directory to the PATH. It is still missing when running conda info -a again.

If you are inside conda environment make sure to run conda develop from within the same environment. If it still dont work lets try to manually add the path to your PYTHONPATH from within Python before you import the module.

import sys
sys.path.append(r"C:\Users\...\gompertz_forecasting\src")

from staging.generate_factors import x, y, z