diff --git a/content/en/docs/user-guide/sdk/python.md b/content/en/docs/user-guide/sdk/python.md
index 7035370b..8867e9c2 100644
--- a/content/en/docs/user-guide/sdk/python.md
+++ b/content/en/docs/user-guide/sdk/python.md
@@ -34,7 +34,6 @@ import asyncio
 import datetime
 from ceresdb_client import Builder, RpcContext, PointBuilder, ValueBuilder, WriteRequest, SqlQueryRequest, Mode, RpcConfig
 
-rpc_config = RpcConfig()
 rpc_config = RpcConfig()
 rpc_config.thread_num = 1
 rpc_config.default_write_timeout_ms = 1000