Update app.py

app.py

@@ -22,10 +22,18 @@ client = OpenAI(api_key=openai_api_key)
 # Initialize connection to Pinecone
 pc = PineconeGRPC(api_key=pinecone_api_key)
 
+# Initialize Pinecone index
 pinecone_index = pc.Index(index_name)
 
-# Initialize VectorStore
-vector_store = PineconeVectorStore(pinecone_index=pinecone_index)
+# Dropdown for selecting namespace
+st.sidebar.title("Namespace Selection")
+namespace = st.sidebar.selectbox(
+    "Select a Namespace",
+    ["cement", "engineering", "food", "Fuel", "IT", "ceramics", "Estate", "paper", "Tannery", "Telecommunication", "miscellaneous"]
+)
+
+# Initialize VectorStore with the selected namespace
+vector_store = PineconeVectorStore(pinecone_index=pinecone_index, namespace=namespace)
 pinecone_index.describe_index_stats()
 
 # Initialize vector index and retriever