Update app.py

app.py

@@ -35,15 +35,13 @@ def chat(history, system_message, max_tokens, temperature, top_p, top_k, repetit
     history = history or []
 
     if system_message.strip():   
-        # if system_message is not None or empty
         messages = "<|im_start|> "+"system\n" + system_message.strip() + "<|im_end|>\n" + \
                    "\n".join(["\n".join(["<|im_start|> "+"user\n"+item[0]+"<|im_end|>", "<|im_start|> assistant\n"+item[1]+"<|im_end|>"])
-                              for item in history])
+                        for item in history])
     else:
-        # if system_message is None or empty, use BASE_SYSTEM_MESSAGE
         messages = "<|im_start|> "+"system\n" + BASE_SYSTEM_MESSAGE + "<|im_end|>\n" + \
                    "\n".join(["\n".join(["<|im_start|> "+"user\n"+item[0]+"<|im_end|>", "<|im_start|> assistant\n"+item[1]+"<|im_end|>"])
-                              for item in history])
+                        for item in history])
     # strip the last `<|end_of_turn|>` from the messages
     messages = messages.rstrip("<|im_end|>")
     # remove last space from assistant, some models output a ZWSP if you leave a space