diff --git a/python/paddle/distributed/auto_parallel/tuner/rule_based_tuner.py b/python/paddle/distributed/auto_parallel/tuner/rule_based_tuner.py
index 1e94adc8de0d34b6c58c4a33b7249f94b02f4751..f1508f793a92e66d36c1aa92f3836c18d2303ed3 100644
--- a/python/paddle/distributed/auto_parallel/tuner/rule_based_tuner.py
+++ b/python/paddle/distributed/auto_parallel/tuner/rule_based_tuner.py
@@ -13,8 +13,8 @@
 # limitations under the License.
 
 import math
-
 from abc import abstractmethod
+
 from ..graph import Graph
 
 _PATTERNS = {}
diff --git a/python/paddle/fluid/tests/unittests/test_device_guard.py b/python/paddle/fluid/tests/unittests/test_device_guard.py
index 13122c2794eb186279f90b703d70c289ccbd0fa9..7fd596f59fe7acf7a1e9f2ce095c284c72f1a337 100644
--- a/python/paddle/fluid/tests/unittests/test_device_guard.py
+++ b/python/paddle/fluid/tests/unittests/test_device_guard.py
@@ -16,7 +16,6 @@ import unittest
 import warnings
 
 import paddle
-import paddle.fluid as fluid
 import paddle.fluid.core as core
 
 paddle.enable_static()
diff --git a/python/paddle/fluid/tests/unittests/xpu/test_device_guard_xpu.py b/python/paddle/fluid/tests/unittests/xpu/test_device_guard_xpu.py
index 081074dcab8a2a992a7529f26e19e9aae99c27a0..903c1115b08868cda9bfd3b663b8fcd238631dd8 100644
--- a/python/paddle/fluid/tests/unittests/xpu/test_device_guard_xpu.py
+++ b/python/paddle/fluid/tests/unittests/xpu/test_device_guard_xpu.py
@@ -20,7 +20,6 @@ sys.path.append("..")
 import warnings
 
 import paddle
-import paddle.fluid as fluid
 import paddle.fluid.core as core
 
 paddle.enable_static()
diff --git a/python/paddle/utils/inplace_utils.py b/python/paddle/utils/inplace_utils.py
index 2ee809facab4feb1107d69bb298367c5706444be..48a40847708ce8dfba422a9dc8c7aa157db32f77 100644
--- a/python/paddle/utils/inplace_utils.py
+++ b/python/paddle/utils/inplace_utils.py
@@ -13,8 +13,8 @@
 # limitations under the License.
 
 import warnings
-import paddle
-from paddle import _C_ops, _legacy_C_ops
+
+import paddle  # noqa: F401
 from paddle.fluid.framework import _non_static_mode
 from paddle.fluid.wrapped_decorator import wrap_decorator