Update app.py

app.py

@@ -97,8 +97,13 @@ def get_rag_results(prompt):
 
     response, additional_metadata = clean_pinecone(response)
     print("Here is the pinecone response:", response)
-    response = reranker(query, response) # BERT cross encoder for ranking
-    print("Here is the response from the reranker", response)
+    if len(response) < 1:
+        response = "No classes were found that matched your criteria"
+        additional_metadata = "None"
+    else:
+        response = reranker(query, response) # BERT cross encoder for ranking
+        print("Here is the response from the reranker", response)
+    
 
     return response, additional_metadata