Update app.py

app.py

@@ -71,10 +71,10 @@ def stream_chat(message, history: list, temperature: float, max_new_tokens: int)
 
     response = model.chat(**generate_kwargs)
 
-    generated_text = ""
+    buffer = ""
     for new_text in response:
-        generated_text += new_text
-        yield(new_text, flush=True, end='')
+        buffer += new_text
+        yield buffer