Update app.py

app.py

@@ -27,12 +27,16 @@ from langchain_openai import OpenAIEmbeddings
 from langchain_pinecone import PineconeVectorStore
 from langchain.chains import RetrievalQA
 import asyncio
+import warnings
 
 from langchain.globals import set_llm_cache
 from langchain_openai import OpenAI
-from langchain.cache import InMemoryCache
+from langchain_community.cache import InMemoryCache
 from langchain.globals import set_llm_cache
 
+# Suppress warnings from LangChain specifically
+warnings.filterwarnings("ignore", module="langchain")
+
 # Initialize and set the cache
 set_llm_cache(InMemoryCache())
 
@@ -176,7 +180,7 @@ def handle_mode_selection(mode, chat_history, question):
         chat_history.append((question, ""))  # Append user question with an empty response initially
 
         # Get response from Pinecone using the qa_chain
-        response = qa_chain({"query": question, "context": ""})
+        response = qa_chain.invoke({"query": question, "context": ""})
         response_text = response['result']
 
         # Stream each character in the response text to the chat history