[Python] Pycharm fails to find package in the defined PYTHONPATH

I have a Python monorepo. One of the services in this monorepo is "poller-service". Its general structure is:

services/
└── poller-service/
├── .venv/
| └─ ...
├── main.py
├── src/
| └─── mycompany/
| ├── __init__.py
| └── poller/
| ├── __init__.py
| └── api/
| ├── __init__.py
| └── app.py
├── pyproject.toml



main.py is:

import asyncio
from mycompany.poller.api.app import app

async def main():
...

if __name__ == '__main__':
asyncio.run(main())


As you can see, main.py imports variable from app.py, which lies under the package "mycompany.poller.api" in "/src" sub-folder.

When I launch the service from Pycharm, I use the Python interpreter defined in .venv sub-folder. This is how the launcher looks:



When I run the launcher I get the error:

/Users/me/repositories/services/poller-service/.venv/bin/python /Users/me/repositories/services/poller-service/main.py -m univorn --port 8006 --reload
Traceback (most recent call last):
File "/Users/me/repositories/Droxi-services/Python/droxi-poller/main.py", line 12, in <module>
from mycompany.poller.api.app import app # noqa: E402
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ModuleNotFoundError: No module named 'mycompany.poller'


I tried to check whether /src subfolder is included in PYTHONPATH by running the lines inside main.py:

import sys
import pprint

pprint.pprint(sys.path)


and I definitely see that /src sub-folder is included in PYTHONPATH. If so, why do I get this error?

The weirdest part is that when I run the command that the launcher executes under the hood:

/Users/me/repositories/services/poller-service/.venv/bin/python /Users/me/repositories/services/poller-service/main.py -m univorn --port 8006 --reload


I don't get this error.

This is probably a problem within Pycharm. Do you know why it happens?

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