Update app.py

app.py

@@ -89,7 +89,12 @@ def messages():
         json_body = request.json
         model = json_body.get('model', 'claude-3-opus-20240229')  # 动态获取模型，默认 claude-3-opus-20240229
         stream = json_body.get('stream', True)  # 默认为True
-        previous_messages = "\n\n".join([msg['content'] for msg in json_body['messages']])
+
+        # 确保 msg['content'] 是字符串，如果是列表则将其 join 成字符串
+        previous_messages = "\n\n".join(
+            [msg['content'] if isinstance(msg['content'], str) else " ".join(msg['content']) for msg in json_body['messages']]
+        )
+
         msg_id = str(uuid.uuid4())
         response_event = Event()
         response_text = []