Import with directories fail in streamlit Cloud

Hello,

I’m using folders for my Python project and it seems streamlit Cloud cannot resolve import paths due to that.
https://share.streamlit.io/richarddally/bestdeal/bestdeal/frontend/streamlit_app.py

File "/home/appuser/venv/lib/python3.7/site-packages/streamlit/script_runner.py", line 354, in _run_script
    exec(code, module.__dict__)
File "/app/bestdeal/bestdeal/frontend/streamlit_app.py", line 4, in <module>
    from bestdeal.core.pricedatabase import PriceDatabase

Source code: BestDeal/streamlit_app.py at master · RichardDally/BestDeal · GitHub