From 6977df8c59113ac84784ffa05b96fae2dd66f2b4 Mon Sep 17 00:00:00 2001
From: Shuangchi He <34329208+Yulv-git@users.noreply.github.com>
Date: Wed, 12 Oct 2022 10:32:54 +0800
Subject: [PATCH] [CodeStyle][F401] remove unused imports in
 python_paddle/inference_device_profiler_text_metric_incubate_quantization_libs_audio_amp_jit.
 (#46762)

---
 python/paddle/device/cuda/streams.py            |  4 ++--
 python/paddle/incubate/autograd/functional.py   |  1 -
 python/paddle/incubate/autograd/primreg.py      |  2 --
 python/paddle/incubate/autograd/primrules.py    |  8 ++++----
 .../distributed/models/moe/gate/gshard_gate.py  |  1 -
 .../distributed/models/moe/gate/naive_gate.py   |  1 -
 .../distributed/models/moe/gate/switch_gate.py  |  1 -
 .../distributed/models/moe/grad_clip.py         |  5 +----
 .../distributed/models/moe/moe_layer.py         |  8 --------
 .../incubate/multiprocessing/reductions.py      |  3 ---
 .../incubate/nn/functional/fused_matmul_bias.py |  2 +-
 .../incubate/nn/functional/fused_transformer.py |  4 ++--
 .../incubate/nn/layer/fused_transformer.py      |  2 --
 .../incubate/operators/graph_khop_sampler.py    |  4 +---
 .../paddle/incubate/operators/graph_reindex.py  |  4 +---
 .../operators/graph_sample_neighbors.py         |  4 +---
 .../incubate/operators/graph_send_recv.py       |  2 +-
 python/paddle/incubate/operators/resnet_unit.py | 17 +----------------
 .../incubate/operators/softmax_mask_fuse.py     |  3 +--
 .../softmax_mask_fuse_upper_triangle.py         |  3 +--
 .../optimizer/distributed_fused_lamb.py         |  3 ---
 .../incubate/optimizer/functional/utils.py      |  2 +-
 python/paddle/incubate/optimizer/lookahead.py   |  5 ++---
 .../paddle/incubate/optimizer/modelaverage.py   |  5 ++---
 .../incubate/passes/fuse_resnet_unit_pass.py    |  1 -
 python/paddle/incubate/sparse/binary.py         |  2 +-
 python/paddle/incubate/sparse/creation.py       |  4 ++--
 python/paddle/incubate/sparse/multiary.py       |  2 +-
 .../incubate/sparse/nn/functional/activation.py |  2 +-
 .../incubate/sparse/nn/functional/conv.py       |  4 +---
 .../incubate/sparse/nn/functional/pooling.py    |  2 +-
 .../sparse/nn/functional/transformer.py         |  2 +-
 python/paddle/incubate/sparse/unary.py          |  2 +-
 python/paddle/incubate/xpu/resnet_block.py      | 16 ++--------------
 python/paddle/metric/metrics.py                 |  4 ++--
 python/paddle/profiler/profiler.py              |  4 ++--
 python/paddle/profiler/statistic_helper.py      |  1 -
 python/paddle/profiler/timer.py                 |  1 -
 python/paddle/text/datasets/conll05.py          |  2 --
 python/paddle/text/datasets/movielens.py        |  4 ----
 python/paddle/text/datasets/wmt14.py            |  1 -
 python/paddle/text/viterbi_decode.py            |  2 +-
 42 files changed, 38 insertions(+), 112 deletions(-)

diff --git a/python/paddle/device/cuda/streams.py b/python/paddle/device/cuda/streams.py
index d25355056e..573750a862 100644
--- a/python/paddle/device/cuda/streams.py
+++ b/python/paddle/device/cuda/streams.py
@@ -12,5 +12,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from paddle.fluid.core import CUDAStream as Stream
-from paddle.fluid.core import CUDAEvent as Event
+from paddle.fluid.core import CUDAStream as Stream  # noqa: F401
+from paddle.fluid.core import CUDAEvent as Event  # noqa: F401
diff --git a/python/paddle/incubate/autograd/functional.py b/python/paddle/incubate/autograd/functional.py
index b96a4633c1..dce83b7505 100644
--- a/python/paddle/incubate/autograd/functional.py
+++ b/python/paddle/incubate/autograd/functional.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import functools
 import typing
 
 import paddle
diff --git a/python/paddle/incubate/autograd/primreg.py b/python/paddle/incubate/autograd/primreg.py
index 7972409d93..31f47f8196 100644
--- a/python/paddle/incubate/autograd/primreg.py
+++ b/python/paddle/incubate/autograd/primreg.py
@@ -12,8 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import functools
-
 
 class Registry(object):
     """ A general registry object. """
diff --git a/python/paddle/incubate/autograd/primrules.py b/python/paddle/incubate/autograd/primrules.py
index 3be0816864..601ed6b0a9 100644
--- a/python/paddle/incubate/autograd/primrules.py
+++ b/python/paddle/incubate/autograd/primrules.py
@@ -20,15 +20,15 @@ import paddle
 
 from . import primops
 from .primops import (add, broadcast, concat, cos, div, eq, erf, exp,
-                      fill_const, gather, ge, gt, log, matmul, max, mul, ne,
-                      neg, reduce_sum, reshape, scatter_add, select, set_value,
-                      sin, slice_assign, slice_select, split, sqrt, sub, tanh,
+                      fill_const, gather, ge, gt, log, matmul, mul, ne, neg,
+                      reduce_sum, reshape, scatter_add, select, set_value, sin,
+                      slice_assign, slice_select, split, sqrt, sub, tanh,
                       transpose, bernoulli, rsqrt)
 from .primreg import (REGISTER_JVP, REGISTER_ORIG2PRIM, REGISTER_PRIM2ORIG,
                       REGISTER_TRANSPOSE, lookup_fn, lookup_jvp,
                       lookup_orig2prim, lookup_prim2orig, lookup_transpose,
                       op_position_inputs, op_position_output)
-from .utils import INT_DTYPE_2_STRING, get_input_var_list, get_output_var_list
+from .utils import INT_DTYPE_2_STRING, get_output_var_list
 from paddle.fluid.data_feeder import convert_dtype
 from paddle.fluid.framework import convert_np_dtype_to_dtype_
 
diff --git a/python/paddle/incubate/distributed/models/moe/gate/gshard_gate.py b/python/paddle/incubate/distributed/models/moe/gate/gshard_gate.py
index 643e23feff..4152dee3a3 100644
--- a/python/paddle/incubate/distributed/models/moe/gate/gshard_gate.py
+++ b/python/paddle/incubate/distributed/models/moe/gate/gshard_gate.py
@@ -22,7 +22,6 @@
 import math
 import paddle
 import paddle.nn.functional as F
-import numpy as np
 from .naive_gate import NaiveGate
 from ..utils import limit_by_capacity
 
diff --git a/python/paddle/incubate/distributed/models/moe/gate/naive_gate.py b/python/paddle/incubate/distributed/models/moe/gate/naive_gate.py
index 476f99b9f4..20001377fd 100644
--- a/python/paddle/incubate/distributed/models/moe/gate/naive_gate.py
+++ b/python/paddle/incubate/distributed/models/moe/gate/naive_gate.py
@@ -23,7 +23,6 @@ from .base_gate import BaseGate
 
 import paddle
 import paddle.nn as nn
-import paddle.nn.functional as F
 
 
 class NaiveGate(BaseGate):
diff --git a/python/paddle/incubate/distributed/models/moe/gate/switch_gate.py b/python/paddle/incubate/distributed/models/moe/gate/switch_gate.py
index 6047519854..62e32e4db7 100644
--- a/python/paddle/incubate/distributed/models/moe/gate/switch_gate.py
+++ b/python/paddle/incubate/distributed/models/moe/gate/switch_gate.py
@@ -21,7 +21,6 @@
 
 import math
 import paddle
-import paddle.nn as nn
 import paddle.nn.functional as F
 from .naive_gate import NaiveGate
 from ..utils import limit_by_capacity
diff --git a/python/paddle/incubate/distributed/models/moe/grad_clip.py b/python/paddle/incubate/distributed/models/moe/grad_clip.py
index 8d645d8fc0..91de68e4bf 100644
--- a/python/paddle/incubate/distributed/models/moe/grad_clip.py
+++ b/python/paddle/incubate/distributed/models/moe/grad_clip.py
@@ -14,11 +14,8 @@
 
 from paddle.fluid.clip import ClipGradBase, _squared_l2_norm
 from paddle.fluid.dygraph import base as imperative_base
-from paddle.fluid import core, layers, framework
+from paddle.fluid import core, layers
 from paddle.distributed import collective
-import six
-import warnings
-import copy
 
 
 class ClipGradForMOEByGlobalNorm(ClipGradBase):
diff --git a/python/paddle/incubate/distributed/models/moe/moe_layer.py b/python/paddle/incubate/distributed/models/moe/moe_layer.py
index 7c11a3e639..b2d11e7a31 100644
--- a/python/paddle/incubate/distributed/models/moe/moe_layer.py
+++ b/python/paddle/incubate/distributed/models/moe/moe_layer.py
@@ -19,22 +19,14 @@
 #     Copyright 2021, Jiaao He. All rights reserved.
 #   Licensed under the Apache License, Version 2.0 (the "License").
 
-import collections
-import math
-
 import numpy as np
 import paddle
 import paddle.nn as nn
-import paddle.nn.functional as F
 from paddle.distributed.utils.moe_utils import global_scatter, global_gather
-from paddle.distributed import alltoall, all_gather
 
-from paddle.distributed.fleet.meta_parallel import get_rng_state_tracker
-from paddle.distributed import fleet
 from paddle.autograd import PyLayer
 from .gate import NaiveGate, GShardGate, SwitchGate, BaseGate
 from .utils import count_by_gate
-from paddle import fluid
 from paddle.fluid.framework import in_dygraph_mode
 from paddle.incubate.distributed.fleet import recompute_hybrid
 
diff --git a/python/paddle/incubate/multiprocessing/reductions.py b/python/paddle/incubate/multiprocessing/reductions.py
index 54d4031226..c54626175b 100644
--- a/python/paddle/incubate/multiprocessing/reductions.py
+++ b/python/paddle/incubate/multiprocessing/reductions.py
@@ -17,13 +17,10 @@ import paddle
 # TODO: check the hooks of tensor
 # TODO: check serializing named tensor
 # TODO: check influence on autograd
-import os
 import sys
 import warnings
-import math
 import copy
 import threading
-import multiprocessing
 from multiprocessing.util import register_after_fork
 from multiprocessing.reduction import ForkingPickler
 
diff --git a/python/paddle/incubate/nn/functional/fused_matmul_bias.py b/python/paddle/incubate/nn/functional/fused_matmul_bias.py
index 6d55e31790..6c0722fc70 100644
--- a/python/paddle/incubate/nn/functional/fused_matmul_bias.py
+++ b/python/paddle/incubate/nn/functional/fused_matmul_bias.py
@@ -15,7 +15,7 @@
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode
 from paddle.tensor.linalg import matmul
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 
 
 def fused_matmul_bias(x,
diff --git a/python/paddle/incubate/nn/functional/fused_transformer.py b/python/paddle/incubate/nn/functional/fused_transformer.py
index 26ac7f3492..2eaa7ceadc 100644
--- a/python/paddle/incubate/nn/functional/fused_transformer.py
+++ b/python/paddle/incubate/nn/functional/fused_transformer.py
@@ -15,8 +15,8 @@
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode, default_main_program
 from paddle.fluid.data_feeder import check_variable_and_dtype, check_dtype
-from paddle.fluid import core, dygraph_utils
-from paddle import _C_ops, _legacy_C_ops
+from paddle.fluid import core
+from paddle import _legacy_C_ops
 
 __all__ = []
 
diff --git a/python/paddle/incubate/nn/layer/fused_transformer.py b/python/paddle/incubate/nn/layer/fused_transformer.py
index fefef4f37c..f9cb7da823 100644
--- a/python/paddle/incubate/nn/layer/fused_transformer.py
+++ b/python/paddle/incubate/nn/layer/fused_transformer.py
@@ -11,10 +11,8 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from paddle.nn import functional as F
 from paddle.incubate.nn import functional as incubate_f
 from paddle.nn import Layer
-from paddle.framework import ParamAttr
 import paddle
 from paddle.nn.layer.transformer import _convert_attention_mask, _convert_param_attr_to_list
 from paddle.nn.initializer import Constant
diff --git a/python/paddle/incubate/operators/graph_khop_sampler.py b/python/paddle/incubate/operators/graph_khop_sampler.py
index 11c9a9853b..2122383381 100644
--- a/python/paddle/incubate/operators/graph_khop_sampler.py
+++ b/python/paddle/incubate/operators/graph_khop_sampler.py
@@ -12,12 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode
 from paddle.fluid.data_feeder import check_variable_and_dtype
-from paddle.fluid import core
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 
 
 def graph_khop_sampler(row,
diff --git a/python/paddle/incubate/operators/graph_reindex.py b/python/paddle/incubate/operators/graph_reindex.py
index fee9b170c1..d8f6774190 100644
--- a/python/paddle/incubate/operators/graph_reindex.py
+++ b/python/paddle/incubate/operators/graph_reindex.py
@@ -12,12 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode
 from paddle.fluid.data_feeder import check_variable_and_dtype
-from paddle.fluid import core
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 import paddle.utils.deprecated as deprecated
 
 
diff --git a/python/paddle/incubate/operators/graph_sample_neighbors.py b/python/paddle/incubate/operators/graph_sample_neighbors.py
index 8b0d6158b2..b39910f9e1 100644
--- a/python/paddle/incubate/operators/graph_sample_neighbors.py
+++ b/python/paddle/incubate/operators/graph_sample_neighbors.py
@@ -12,12 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode
 from paddle.fluid.data_feeder import check_variable_and_dtype
-from paddle.fluid import core
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 import paddle.utils.deprecated as deprecated
 
 
diff --git a/python/paddle/incubate/operators/graph_send_recv.py b/python/paddle/incubate/operators/graph_send_recv.py
index 91ea337eeb..939d8c343f 100644
--- a/python/paddle/incubate/operators/graph_send_recv.py
+++ b/python/paddle/incubate/operators/graph_send_recv.py
@@ -14,7 +14,7 @@
 
 import numpy as np
 from paddle.fluid.layer_helper import LayerHelper
-from paddle.fluid.framework import _non_static_mode, _in_legacy_dygraph, in_dygraph_mode
+from paddle.fluid.framework import _in_legacy_dygraph, in_dygraph_mode
 from paddle.fluid.framework import Variable
 from paddle.fluid.data_feeder import check_variable_and_dtype, check_type, check_dtype, convert_dtype
 from paddle.fluid.layers.tensor import cast
diff --git a/python/paddle/incubate/operators/resnet_unit.py b/python/paddle/incubate/operators/resnet_unit.py
index 2f4cb4d3bd..c8fb583bff 100644
--- a/python/paddle/incubate/operators/resnet_unit.py
+++ b/python/paddle/incubate/operators/resnet_unit.py
@@ -12,28 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import copy
-import collections
-import itertools
-import six
-import math
-import sys
-import warnings
-from functools import partial, reduce
-
 import numpy as np
-import paddle
 import paddle.fluid as fluid
-from paddle import framework
-from paddle.device import get_device, get_cudnn_version
 from paddle.nn import initializer as I
-from paddle.nn import Layer, LayerList
+from paddle.nn import Layer
 from paddle.fluid.layers import utils
 from paddle.fluid.layer_helper import LayerHelper
-from paddle.fluid.layers.utils import map_structure, flatten, pack_sequence_as
-from paddle.fluid.data_feeder import convert_dtype
 from paddle.fluid.param_attr import ParamAttr
-from paddle import _C_ops, _legacy_C_ops
 
 
 def resnet_unit(x, filter_x, scale_x, bias_x, mean_x, var_x, z, filter_z,
diff --git a/python/paddle/incubate/operators/softmax_mask_fuse.py b/python/paddle/incubate/operators/softmax_mask_fuse.py
index 4fc733ab4a..27afabaa0d 100644
--- a/python/paddle/incubate/operators/softmax_mask_fuse.py
+++ b/python/paddle/incubate/operators/softmax_mask_fuse.py
@@ -14,8 +14,7 @@
 
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode
-from paddle.fluid import core
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 
 
 def softmax_mask_fuse(x, mask, name=None):
diff --git a/python/paddle/incubate/operators/softmax_mask_fuse_upper_triangle.py b/python/paddle/incubate/operators/softmax_mask_fuse_upper_triangle.py
index 520a6d27e6..d73b8ba6d6 100644
--- a/python/paddle/incubate/operators/softmax_mask_fuse_upper_triangle.py
+++ b/python/paddle/incubate/operators/softmax_mask_fuse_upper_triangle.py
@@ -14,8 +14,7 @@
 
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.framework import _non_static_mode
-from paddle.fluid import core
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 
 
 def softmax_mask_fuse_upper_triangle(x):
diff --git a/python/paddle/incubate/optimizer/distributed_fused_lamb.py b/python/paddle/incubate/optimizer/distributed_fused_lamb.py
index 3f3df92be5..56a9a99134 100644
--- a/python/paddle/incubate/optimizer/distributed_fused_lamb.py
+++ b/python/paddle/incubate/optimizer/distributed_fused_lamb.py
@@ -17,14 +17,11 @@ import paddle
 from paddle.fluid import framework, core, layers, unique_name
 from paddle.fluid.framework import Variable
 from paddle.fluid.clip import ClipGradByGlobalNorm
-from paddle.fluid.initializer import Constant
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.optimizer import Optimizer
-from paddle.distributed.collective import new_group
 from paddle.fluid.executor import global_scope
 from paddle.fluid.framework import name_scope
 from paddle.fluid import core, unique_name
-import numpy as np
 
 
 def init_communicator(block, rank, ranks, ring_id):
diff --git a/python/paddle/incubate/optimizer/functional/utils.py b/python/paddle/incubate/optimizer/functional/utils.py
index 7a427c4489..e6612878e7 100644
--- a/python/paddle/incubate/optimizer/functional/utils.py
+++ b/python/paddle/incubate/optimizer/functional/utils.py
@@ -14,7 +14,7 @@
 
 import paddle
 from paddle.fluid.framework import Variable
-from paddle.fluid.data_feeder import check_type, check_dtype
+from paddle.fluid.data_feeder import check_type
 
 
 def check_input_type(input, name, op_name):
diff --git a/python/paddle/incubate/optimizer/lookahead.py b/python/paddle/incubate/optimizer/lookahead.py
index 31ebf9afcc..dcf50cb522 100644
--- a/python/paddle/incubate/optimizer/lookahead.py
+++ b/python/paddle/incubate/optimizer/lookahead.py
@@ -13,11 +13,10 @@
 # limitations under the License.
 
 from paddle.optimizer import Optimizer
-from paddle.fluid import core, framework, layers, unique_name
-from paddle.fluid.framework import Program, Variable, name_scope, default_main_program, default_startup_program, device_guard
+from paddle.fluid import framework, layers, unique_name
+from paddle.fluid.framework import Variable
 from paddle.fluid.layer_helper import LayerHelper
 import paddle
-import numpy as np
 from paddle.fluid.dygraph import base as imperative_base
 
 __all__ = []
diff --git a/python/paddle/incubate/optimizer/modelaverage.py b/python/paddle/incubate/optimizer/modelaverage.py
index ebbe9cd78f..5fa9dfb67b 100644
--- a/python/paddle/incubate/optimizer/modelaverage.py
+++ b/python/paddle/incubate/optimizer/modelaverage.py
@@ -13,11 +13,10 @@
 # limitations under the License.
 
 from paddle.optimizer import Optimizer
-from paddle.fluid import core, framework, layers
-from paddle.fluid.framework import Program, Variable
+from paddle.fluid import framework, layers
+from paddle.fluid.framework import Program
 from paddle.fluid.layer_helper import LayerHelper
 import paddle
-import numpy as np
 from paddle.fluid.dygraph import base as imperative_base
 from paddle.fluid.wrapped_decorator import signature_safe_contextmanager
 from paddle import _C_ops, _legacy_C_ops
diff --git a/python/paddle/incubate/passes/fuse_resnet_unit_pass.py b/python/paddle/incubate/passes/fuse_resnet_unit_pass.py
index 451ea1908f..fce745ffaf 100644
--- a/python/paddle/incubate/passes/fuse_resnet_unit_pass.py
+++ b/python/paddle/incubate/passes/fuse_resnet_unit_pass.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
 import paddle.fluid.ir as ir
 
 
diff --git a/python/paddle/incubate/sparse/binary.py b/python/paddle/incubate/sparse/binary.py
index a39a0a756d..c2592e0beb 100644
--- a/python/paddle/incubate/sparse/binary.py
+++ b/python/paddle/incubate/sparse/binary.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _C_ops
 from paddle.fluid.framework import dygraph_only, core
 from paddle import in_dynamic_mode
 from paddle.fluid.layer_helper import LayerHelper
diff --git a/python/paddle/incubate/sparse/creation.py b/python/paddle/incubate/sparse/creation.py
index 72f4b3fba6..fe35b9cbd6 100644
--- a/python/paddle/incubate/sparse/creation.py
+++ b/python/paddle/incubate/sparse/creation.py
@@ -13,11 +13,11 @@
 # limitations under the License.
 
 import paddle
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _C_ops
 from paddle.fluid.framework import core, dygraph_only
 from paddle.fluid.framework import _current_expected_place, _get_paddle_place
 from paddle.tensor import to_tensor, max
-from paddle.fluid.data_feeder import check_variable_and_dtype, check_type, check_dtype, convert_dtype
+from paddle.fluid.data_feeder import convert_dtype
 from paddle import in_dynamic_mode
 from paddle.fluid.layer_helper import LayerHelper
 
diff --git a/python/paddle/incubate/sparse/multiary.py b/python/paddle/incubate/sparse/multiary.py
index 5389ddc9fa..5a01393077 100644
--- a/python/paddle/incubate/sparse/multiary.py
+++ b/python/paddle/incubate/sparse/multiary.py
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _C_ops
 from paddle.fluid.framework import dygraph_only
 
 __all__ = []
diff --git a/python/paddle/incubate/sparse/nn/functional/activation.py b/python/paddle/incubate/sparse/nn/functional/activation.py
index 7cc6920b39..0e83abd239 100644
--- a/python/paddle/incubate/sparse/nn/functional/activation.py
+++ b/python/paddle/incubate/sparse/nn/functional/activation.py
@@ -14,7 +14,7 @@
 
 __all__ = []
 
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _C_ops
 from paddle.fluid.framework import dygraph_only
 from paddle import in_dynamic_mode
 from paddle.fluid.layer_helper import LayerHelper
diff --git a/python/paddle/incubate/sparse/nn/functional/conv.py b/python/paddle/incubate/sparse/nn/functional/conv.py
index d8cece7cde..233af394ec 100644
--- a/python/paddle/incubate/sparse/nn/functional/conv.py
+++ b/python/paddle/incubate/sparse/nn/functional/conv.py
@@ -14,10 +14,8 @@
 
 __all__ = []
 
-from paddle import _C_ops, _legacy_C_ops, in_dynamic_mode
+from paddle import _C_ops, in_dynamic_mode
 from paddle.fluid.layers.utils import convert_to_list
-from paddle.fluid.layers.nn import elementwise_add
-from ...creation import sparse_coo_tensor
 from ...binary import add
 from paddle.nn.functional.conv import _update_padding_nd
 from paddle.fluid.layer_helper import LayerHelper
diff --git a/python/paddle/incubate/sparse/nn/functional/pooling.py b/python/paddle/incubate/sparse/nn/functional/pooling.py
index 6acd303d0f..aedadc8e56 100644
--- a/python/paddle/incubate/sparse/nn/functional/pooling.py
+++ b/python/paddle/incubate/sparse/nn/functional/pooling.py
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 from paddle.fluid.layers import utils
-from paddle import _C_ops, _legacy_C_ops, in_dynamic_mode
+from paddle import _C_ops, in_dynamic_mode
 from paddle.nn.functional.pooling import _update_padding_nd
 
 __all__ = []
diff --git a/python/paddle/incubate/sparse/nn/functional/transformer.py b/python/paddle/incubate/sparse/nn/functional/transformer.py
index 0ed230aa23..26164720cd 100644
--- a/python/paddle/incubate/sparse/nn/functional/transformer.py
+++ b/python/paddle/incubate/sparse/nn/functional/transformer.py
@@ -14,7 +14,7 @@
 
 __all__ = []
 
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _C_ops
 from paddle.fluid.framework import dygraph_only
 
 
diff --git a/python/paddle/incubate/sparse/unary.py b/python/paddle/incubate/sparse/unary.py
index 7090ef44c7..319f64118b 100644
--- a/python/paddle/incubate/sparse/unary.py
+++ b/python/paddle/incubate/sparse/unary.py
@@ -14,7 +14,7 @@
 
 import numpy as np
 
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _C_ops
 from paddle.fluid.framework import dygraph_only, core, convert_np_dtype_to_dtype_
 
 __all__ = []
diff --git a/python/paddle/incubate/xpu/resnet_block.py b/python/paddle/incubate/xpu/resnet_block.py
index c584766730..1eb3637fa5 100644
--- a/python/paddle/incubate/xpu/resnet_block.py
+++ b/python/paddle/incubate/xpu/resnet_block.py
@@ -12,26 +12,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import copy
-import collections
-import itertools
-import six
-import math
-import sys
-import warnings
-from functools import partial, reduce
-
 import numpy as np
-import paddle
 import paddle.fluid as fluid
-from paddle import framework
 from paddle.nn import initializer as I
-from paddle.nn import Layer, LayerList
+from paddle.nn import Layer
 from paddle.fluid.layers import utils
 from paddle.fluid.layer_helper import LayerHelper
-from paddle.fluid.data_feeder import convert_dtype
 from paddle.fluid.param_attr import ParamAttr
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 
 __all__ = ['resnet_basic_block', 'ResNetBasicBlock']
 
diff --git a/python/paddle/metric/metrics.py b/python/paddle/metric/metrics.py
index aeec4022e2..a7d8da75fe 100644
--- a/python/paddle/metric/metrics.py
+++ b/python/paddle/metric/metrics.py
@@ -18,9 +18,9 @@ import numpy as np
 
 from ..fluid.data_feeder import check_variable_and_dtype
 from ..fluid.layer_helper import LayerHelper
-from ..fluid.framework import core, _varbase_creator, _non_static_mode, _in_legacy_dygraph
+from ..fluid.framework import _non_static_mode, _varbase_creator
 import paddle
-from paddle import _C_ops, _legacy_C_ops
+from paddle import _legacy_C_ops
 
 __all__ = []
 
diff --git a/python/paddle/profiler/profiler.py b/python/paddle/profiler/profiler.py
index dcfeebcdc3..e4c32db2e9 100644
--- a/python/paddle/profiler/profiler.py
+++ b/python/paddle/profiler/profiler.py
@@ -22,8 +22,8 @@ import importlib
 import json
 
 import paddle
-from paddle.fluid.core import (_Profiler, _ProfilerResult, ProfilerOptions,
-                               TracerEventType, enable_memory_recorder,
+from paddle.fluid.core import (_Profiler, ProfilerOptions, TracerEventType,
+                               enable_memory_recorder,
                                enable_input_shape_recorder,
                                disable_memory_recorder,
                                disable_input_shape_recorder)
diff --git a/python/paddle/profiler/statistic_helper.py b/python/paddle/profiler/statistic_helper.py
index 358f2a09b9..b6925a2b77 100644
--- a/python/paddle/profiler/statistic_helper.py
+++ b/python/paddle/profiler/statistic_helper.py
@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-import collections
 
 
 def sum_ranges(ranges):
diff --git a/python/paddle/profiler/timer.py b/python/paddle/profiler/timer.py
index 5fcc251510..1f0fb6acde 100644
--- a/python/paddle/profiler/timer.py
+++ b/python/paddle/profiler/timer.py
@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import timeit
-import logging
 from collections import OrderedDict
 
 
diff --git a/python/paddle/text/datasets/conll05.py b/python/paddle/text/datasets/conll05.py
index 36bb6e5357..3e8889a126 100644
--- a/python/paddle/text/datasets/conll05.py
+++ b/python/paddle/text/datasets/conll05.py
@@ -15,8 +15,6 @@
 import gzip
 import tarfile
 import numpy as np
-import six
-from six.moves import cPickle as pickle
 
 from paddle.io import Dataset
 import paddle.compat as cpt
diff --git a/python/paddle/text/datasets/movielens.py b/python/paddle/text/datasets/movielens.py
index abf27db6b3..c3d1de135b 100644
--- a/python/paddle/text/datasets/movielens.py
+++ b/python/paddle/text/datasets/movielens.py
@@ -15,11 +15,7 @@
 import numpy as np
 import zipfile
 import re
-import random
-import functools
-import six
 
-import paddle
 from paddle.io import Dataset
 import paddle.compat as cpt
 from paddle.dataset.common import _check_exists_and_download
diff --git a/python/paddle/text/datasets/wmt14.py b/python/paddle/text/datasets/wmt14.py
index 3266a68c0c..bfb665570c 100644
--- a/python/paddle/text/datasets/wmt14.py
+++ b/python/paddle/text/datasets/wmt14.py
@@ -14,7 +14,6 @@
 
 import tarfile
 import numpy as np
-import gzip
 import six
 
 from paddle.io import Dataset
diff --git a/python/paddle/text/viterbi_decode.py b/python/paddle/text/viterbi_decode.py
index aa289a270c..a2a92da947 100644
--- a/python/paddle/text/viterbi_decode.py
+++ b/python/paddle/text/viterbi_decode.py
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 from ..nn import Layer
-from ..fluid.framework import core, _non_static_mode, in_dygraph_mode
+from ..fluid.framework import _non_static_mode, in_dygraph_mode
 from ..fluid.layer_helper import LayerHelper
 from ..fluid.data_feeder import check_variable_and_dtype, check_type
 from paddle import _C_ops, _legacy_C_ops
-- 
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