Update app.py

app.py

@@ -82,14 +82,22 @@ if prompt := st.chat_input("What are you looking to learn?"):
     with st.chat_message("user"):
         st.markdown(prompt)
 
-    # Assistant response generation with streaming effect
+     # Assistant response generation with streaming effect
     with st.chat_message("assistant"):
         response = qa_chain({"question": prompt})
         response_text = response["answer"]
-
-        # Stream the response word by word
-        for accumulated_response in response_text:
-            st.markdown(accumulated_response, unsafe_allow_html=True)
-
+    
+        # Create an empty placeholder
+        placeholder = st.empty()
+    
+        # Initialize an empty string to accumulate the response
+        accumulated_response = ""
+    
+        # Stream the response character by character
+        for char in response_text:
+            accumulated_response += char
+            placeholder.markdown(accumulated_response, unsafe_allow_html=True)
+            time.sleep(0.01)  # Add a small delay to create a typing effect
+    
     # Add assistant response to chat history
-    st.session_state.messages.append({"role": "assistant", "content": response_text})
+    st.session_state.messages.append({"role": "assistant", "content": response_text})