diff --git a/clients/python/wcferry/client.py b/clients/python/wcferry/client.py
index 6d58eb0..a6f5865 100644
--- a/clients/python/wcferry/client.py
+++ b/clients/python/wcferry/client.py
@@ -636,6 +636,7 @@ class Wcf():
         Returns:
             int: 1 为成功，其他失败
         """
+        raise Exception("Not implemented, yet")
         req = wcf_pb2.Request()
         req.func = wcf_pb2.FUNC_ACCEPT_FRIEND  # FUNC_ACCEPT_FRIEND
         req.v.v3 = v3