diff --git a/pyproject.toml b/pyproject.toml
index 4ef1904e0c70f3..4ed2255b36ca8d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -108,7 +108,6 @@ ignore = [
     "B019", # Confirmation required
     "C416",
     "F821",
-    "PLC0414",
 ]
 
 # B017
diff --git a/python/paddle/base/backward.py b/python/paddle/base/backward.py
index 82df59271bef12..debea42cdc562c 100755
--- a/python/paddle/base/backward.py
+++ b/python/paddle/base/backward.py
@@ -20,8 +20,7 @@
 from collections.abc import Sequence
 
 import paddle.base
-from paddle.base import framework as framework
-from paddle.base import program_guard
+from paddle.base import framework, program_guard
 
 from . import core, log_helper, unique_name
 from .data_feeder import check_type