Update app.py

app.py

@@ -63,11 +63,10 @@ from langchain.chains.combine_documents import create_stuff_documents_chain
 #from langchain import hub
 from langchain.chains import create_retrieval_chain
 
-from langchain_community.llms import Ollama
+#from langchain_community.llms import Ollama
+#READER_MODEL=Ollama(model="meta-llama/Meta-Llama-Guard-2-8B")
 
-#READER_MODEL="HuggingFaceH4/zephyr-7b-beta"
-#HuggingFaceH4/zephyr-7b-beta
-READER_MODEL=Ollama(model="meta-llama/Meta-Llama-Guard-2-8B")
+READER_MODEL="HuggingFaceH4/zephyr-7b-beta"
 
 #qa = ConversationalRetrievalChain.from_llm(llm=READER_MODEL,retriever=retriever,memory=memory)
 #qa = RetrievalQA.from_chain_type(llm=READER_MODEL,retriever=retriever)