Removed system

app.py

@@ -4,7 +4,6 @@ from http import HTTPStatus
 import openai
 from typing import Generator, List, Optional, Tuple, Dict
 from urllib.error import HTTPError
-default_system = 'You are a helpful assistant.'
 
 API_URL = os.getenv('API_URL')
 API_KEY = os.getenv('API_KEY')
@@ -16,12 +15,7 @@ Messages = List[Dict[str, str]]
 def clear_session() -> History:
     return '', []
 
-def modify_system_session(system: str) -> str:
-    if system is None or len(system) == 0:
-        system = default_system
-    return system, system, []
-
-def history_to_messages(history: History, system: str) -> Messages:
+def history_to_messages(history: History) -> Messages:
     messages = []
     for h in history:
         messages.append({'role': 'user', 'content': h[0]})
@@ -29,18 +23,17 @@ def history_to_messages(history: History, system: str) -> Messages:
     return messages
 
 def messages_to_history(messages: Messages) -> Tuple[str, History]:
-    system = messages[0]['content']
     history = []
-    for q, r in zip(messages[1::2], messages[2::2]):
+    for q, r in zip(messages[0::2], messages[1::2]):
         history.append([q['content'], r['content']])
-    return system, history
+    return history
 
-def model_chat(query: Optional[str], history: Optional[History]) -> Generator[Tuple[str, str, History], None, None]:
+def model_chat(query: Optional[str], history: Optional[History]) -> Generator[Tuple[str, History], None, None]:
     if query is None:
         query = ''
     if history is None:
         history = []
-    messages = history_to_messages(history, system)
+    messages = history_to_messages(history)
     messages.append({'role': 'user', 'content': query})
     gen = oai_client.chat.completions.create(
         model='dicta-il/dictalm2.0-instruct',
@@ -54,8 +47,8 @@ def model_chat(query: Optional[str], history: Optional[History]) -> Generator[Tu
     for completion in gen:
         text = completion.choices[0].text
         messages[-1]['content'] += text
-        system, history = messages_to_history(messages)
-        yield '', history, system
+        history = messages_to_history(messages)
+        yield '', history
     
 with gr.Blocks() as demo:
     gr.Markdown("""<center><font size=8>DictaLM2.0-Instruct Chat Demo</center>""")