diff --git a/ChatTTS/model/velocity/llm.py b/ChatTTS/model/velocity/llm.py
index b473b562c..a37f5cb34 100644
--- a/ChatTTS/model/velocity/llm.py
+++ b/ChatTTS/model/velocity/llm.py
@@ -2,12 +2,12 @@
 
 from tqdm import tqdm
 from transformers import PreTrainedTokenizer, PreTrainedTokenizerFast
+from vllm.utils import Counter
 
 from .configs import EngineArgs
 from .llm_engine import LLMEngine
 from .output import RequestOutput
 from .sampling_params import SamplingParams
-from vllm.utils import Counter
 
 
 class LLM:
diff --git a/ChatTTS/model/velocity/worker.py b/ChatTTS/model/velocity/worker.py
index 90aca7f32..294c77d37 100644
--- a/ChatTTS/model/velocity/worker.py
+++ b/ChatTTS/model/velocity/worker.py
@@ -12,6 +12,7 @@
 from vllm.model_executor.parallel_utils.parallel_state import initialize_model_parallel
 from vllm.sequence import SamplerOutput, SequenceGroupMetadata
 from vllm.worker.cache_engine import CacheEngine
+
 from .model_runner import ModelRunner
 
 
diff --git a/examples/cmd/run.py b/examples/cmd/run.py
index 9249eb5b9..389890e80 100644
--- a/examples/cmd/run.py
+++ b/examples/cmd/run.py
@@ -1,22 +1,23 @@
+import os, sys
+
+if sys.platform == "darwin":
+    os.environ["PYTORCH_ENABLE_MPS_FALLBACK"] = "1"
+
+now_dir = os.getcwd()
+sys.path.append(now_dir)
+
 from typing import Optional, List
 import argparse
-import os
-import sys
 
 import numpy as np
 
 import ChatTTS
+
 from tools.logger import get_logger
 from tools.audio import pcm_arr_to_mp3_view
 from tools.normalizer.en import normalizer_en_nemo_text
 from tools.normalizer.zh import normalizer_zh_tn
 
-if sys.platform == "darwin":
-    os.environ["PYTORCH_ENABLE_MPS_FALLBACK"] = "1"
-
-now_dir = os.getcwd()
-sys.path.append(now_dir)
-
 logger = get_logger("Command")
 
 
diff --git a/examples/web/funcs.py b/examples/web/funcs.py
index 933fb6833..b8fcd4f4a 100644
--- a/examples/web/funcs.py
+++ b/examples/web/funcs.py
@@ -1,4 +1,3 @@
-import sys
 import random
 from typing import Optional
 from time import sleep