diff --git a/chat_qwen.py b/chat_qwen.py
index d446506..6cbdae5 100644
--- a/chat_qwen.py
+++ b/chat_qwen.py
@@ -1,7 +1,3 @@
-import atexit
-import os
-import sys
-
 import torch
 from transformers import AutoModelForCausalLM, AutoTokenizer