Update app.py

app.py

@@ -58,7 +58,7 @@ def infer(question, history):
     query = question
     result = qa({"question": query, "chat_history": chat_history})
     #print(result)
-    return result["answer"]
+    yield result["answer"]
 
 css="""
 #col-container {max-width: 700px; margin-left: auto; margin-right: auto;}