from langchain.qa import RetrievalQA

[dinusr]

Hi ,

I have installed the library using "%pip install langchain", but still I couldn't import RetrievalQA. Could anyone help?

[filipniziol]

Hi @dinusr ,

Are you using the correct namespace langchain.chains to import?

from langchain.chains import RetrievalQA

If yes, try to 

1. Install the most recent version %pip install --upgrade --force-reinstall langchain

2. Restart the kernel : dbutils.library.restartPython()