Update app.py

app.py

@@ -4,7 +4,16 @@ import gradio as gr
 
 model_name = "RUC-DataLab/DeepAnalyze-8B"
 
-tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True)
+# 先尝试 fast tokenizer，失败就退回到 slow tokenizer（use_fast=False）
+from transformers import AutoTokenizer
+
+try:
+    tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True, use_fast=True)
+except Exception as e:
+    print("Fast tokenizer failed:", e)
+    print("Falling back to slow tokenizer (use_fast=False).")
+    tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True, use_fast=False)
+
 model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype=torch.bfloat16, device_map="auto", trust_remote_code=True)
 
 def chat_fn(message, history):