From 2a9ae28a6aa01dc2b9729205d76cb70077dda0c0 Mon Sep 17 00:00:00 2001
From: Xu Yang <peteryang@vip.qq.com>
Date: Mon, 17 Feb 2025 22:40:05 +0800
Subject: [PATCH] fix: a small bug in exp_gen (#606)

---
 rdagent/scenarios/data_science/proposal/exp_gen.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rdagent/scenarios/data_science/proposal/exp_gen.py b/rdagent/scenarios/data_science/proposal/exp_gen.py
index 317b15e9..2bf225d7 100644
--- a/rdagent/scenarios/data_science/proposal/exp_gen.py
+++ b/rdagent/scenarios/data_science/proposal/exp_gen.py
@@ -195,7 +195,7 @@ class DSExpGen(ExpGen):
         """
         former_task_desc = (
             trace.hist[-1][0].pending_tasks_list[0][0].get_task_information()
-            if len(trace.hist) > 0 and trace.hist[-1] is not last_successful_exp
+            if len(trace.hist) > 0 and trace.hist[-1][0] is not last_successful_exp
             else None
         )