Update app.py

app.py

@@ -101,20 +101,21 @@ def print_header_json_file(filepath):
         print(file_contents[:500]) # print only the first 500 characters
 
 index = get_index(INDEX_FILE)
-        
+# define the conversation_history list
+conversation_history = []
+
 # passes the prompt to the chatbot
-def chatbot(input_text, state):
-    global conversation_history
+def chatbot(input_text, history=conversation_history):
     hyde= HyDEQueryTransform(include_original=True)
     prompt = f"In character as John Haynes, please respond to: {input_text}. Only reply with contextual information or say you cannot find an answer. End with a reflective question."
     response = index.query(prompt, response_mode="default", verbose=True, query_transform=hyde)
     store_message(input_text,response)
 
    # append the current input and response to the conversation history
-    conversation_history.append((input_text, response.response))
+    history.append((input_text, response.response))
     
  # return the response and updated conversation history
-    return response.response, conversation_history
+    return response.response, history
 
 with open('about.txt', 'r') as file:
     about = file.read()