Update app.py

app.py

@@ -29,7 +29,7 @@ save_txt = partial(save_chatbot_dialogue, save_type='txt')
 # history is a list of list  
 # [[user_input_str, bot_response_str], ...]
 
-class BasicTutor:
+class EchoingTutor:
     # create basic initialization function
     def __init__(self):
         self.conversation_memory = []
@@ -61,10 +61,12 @@ def get_tutor_reply(user_message, chat_tutor):
   chat_tutor.get_tutor_reply(user_message)
   return gr.update(value="", interactive=True), chat_tutor.conversation_memory, chat_tutor
 
+def get_conversation_history(chat_tutor):
+    return chat_tutor.conversation_memory
 
 with gr.Blocks() as demo:
     #initialize tutor (with state)
-    study_tutor = gr.State(BasicTutor())
+    study_tutor = gr.State(EchoingTutorTutor())
         
     # Chatbot interface
     gr.Markdown("""
@@ -78,11 +80,16 @@ with gr.Blocks() as demo:
           with gr.Row():
             user_chat_input = gr.Textbox(label="User input", scale=9)
             user_chat_submit = gr.Button("Ask/answer model", scale=1)
+
+    clear_btn = gr.Button("Start a new conversation")
     
     user_chat_submit.click(add_user_message, 
                            [user_chat_input, study_tutor], 
                            [chatbot, study_tutor], queue=False).then(
         get_tutor_reply, [user_chat_input, study_tutor], [user_chat_input, chatbot, study_tutor], queue=True)
+
+    # Testing purpose
+    gr.Interface(fn=get_conversation_history, inputs=None, outputs="text")
     
     with gr.Blocks():
         gr.Markdown("""