Update app.py

app.py

@@ -96,6 +96,9 @@ def get_completion(message,history,system_message,max_tokens,temperature):
     
     history_openai_format = []
     for human, assistant in history:
+        # 歷史消息中跳过包含图片的对话
+        if isinstance(human, tuple):
+            continue
         history_openai_format.append({"role": "user", "content": human })
         history_openai_format.append({"role": "assistant", "content":assistant})
     history_openai_format.append({"role": "user", "content": content})