[CodeStyle][F401] remove unused import in unittests/test_[a-e] (#46691)

python/paddle/fluid/tests/unittests/test_accuracy_op.py

@@ -17,7 +17,7 @@ import numpy as np
 from op_test import OpTest
 import paddle
 import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard
+from paddle.fluid import Program, program_guard
 
 
 class TestAccuracyOp(OpTest):

python/paddle/fluid/tests/unittests/test_activation_nn_grad.py

@@ -21,7 +21,6 @@ import paddle.fluid.layers as layers
 import paddle.fluid.core as core
 import gradient_checker
 import paddle.nn.functional as F
-from paddle.fluid.framework import _test_eager_guard
 
 from decorator_helper import prog_scope
 

python/paddle/fluid/tests/unittests/test_activation_op.py

@@ -17,13 +17,12 @@ import unittest
 import numpy as np
 from scipy.special import expit, erf
 
-from op_test import OpTest, convert_float_to_uint16, skip_check_grad_ci
+from op_test import OpTest, convert_float_to_uint16
 import paddle
-import paddle.nn as nn
 import paddle.nn.functional as F
 import paddle.fluid as fluid
 import paddle.fluid.core as core
-from paddle.fluid import compiler, Program, program_guard
+from paddle.fluid import Program, program_guard
 from paddle.fluid.framework import _test_eager_guard
 
 paddle.enable_static()

python/paddle/fluid/tests/unittests/test_activation_sparse_op.py

@@ -14,10 +14,8 @@
 
 import unittest
 import numpy as np
-import paddle.fluid as fluid
 import paddle.fluid.core as core
 from paddle.fluid.op import Operator
-from op_test import OpTest
 import paddle
 
 

python/paddle/fluid/tests/unittests/test_adagrad_op_v2.py

@@ -13,12 +13,7 @@
 # limitations under the License.
 
 import unittest
-import numpy as np
 import paddle
-import paddle.fluid.core as core
-from paddle.fluid.op import Operator
-from op_test import OpTest
-import math
 
 
 class TestAdagradOpV2(unittest.TestCase):

python/paddle/fluid/tests/unittests/test_adamax_api.py

@@ -14,7 +14,6 @@
 
 import unittest
 import numpy as np
-from op_test import OpTest
 import paddle
 import paddle.fluid as fluid
 from paddle.fluid.framework import _test_eager_guard

python/paddle/fluid/tests/unittests/test_adaptive_avg_pool1d.py

@@ -15,10 +15,8 @@
 import numpy as np
 import unittest
 import numpy as np
-from op_test import OpTest
 import paddle.fluid.core as core
 import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard
 import paddle
 import paddle.nn.functional as F
 import paddle.fluid as fluid

python/paddle/fluid/tests/unittests/test_adaptive_avg_pool2d.py

@@ -17,7 +17,6 @@ import unittest
 import numpy as np
 
 import paddle.fluid.core as core
-from op_test import OpTest
 import paddle
 import paddle.fluid as fluid
 from paddle.fluid import Program, program_guard

python/paddle/fluid/tests/unittests/test_adaptive_avg_pool3d.py

@@ -16,10 +16,8 @@ import unittest
 import numpy as np
 
 import paddle.fluid.core as core
-from op_test import OpTest
 import paddle
 import paddle.fluid as fluid
-from paddle.fluid import Program, program_guard
 
 
 def adaptive_start_index(index, input_size, output_size):

python/paddle/fluid/tests/unittests/test_adaptive_max_pool1d.py

@@ -14,9 +14,8 @@
 
 import numpy as np
 import unittest
-from op_test import OpTest, check_out_dtype
+from op_test import check_out_dtype
 import paddle.fluid.core as core
-from paddle.fluid import compiler, Program, program_guard
 import paddle
 import paddle.nn.functional as F
 import paddle.fluid as fluid

python/paddle/fluid/tests/unittests/test_adaptive_max_pool2d.py

@@ -16,10 +16,9 @@ import unittest
 import numpy as np
 
 import paddle.fluid.core as core
-from op_test import OpTest, check_out_dtype
+from op_test import check_out_dtype
 import paddle
 import paddle.fluid as fluid
-from paddle.fluid import Program, program_guard
 import paddle.nn.functional as F
 
 

python/paddle/fluid/tests/unittests/test_adaptive_max_pool3d.py

@@ -16,10 +16,9 @@ import unittest
 import numpy as np
 
 import paddle.fluid.core as core
-from op_test import OpTest, check_out_dtype
+from op_test import check_out_dtype
 import paddle
 import paddle.fluid as fluid
-from paddle.fluid import Program, program_guard
 import paddle.nn.functional as F
 
 

python/paddle/fluid/tests/unittests/test_add_position_encoding_op.py

@@ -14,7 +14,6 @@
 import unittest
 import numpy as np
 import math
-import paddle.fluid.core as core
 from op_test import OpTest
 import paddle.fluid as fluid
 import paddle

python/paddle/fluid/tests/unittests/test_addmm_op.py

@@ -15,7 +15,6 @@
 import unittest
 import numpy as np
 import paddle
-import paddle.fluid.core as core
 from op_test import OpTest
 import paddle.fluid as fluid
 from paddle.fluid import Program, program_guard

python/paddle/fluid/tests/unittests/test_affine_channel_op.py

@@ -18,7 +18,6 @@ Unit testing for affine_channel_op
 import unittest
 import numpy as np
 from op_test import OpTest
-import paddle.fluid.core as core
 import paddle.fluid as fluid
 
 

python/paddle/fluid/tests/unittests/test_affine_grid_function.py

@@ -14,10 +14,9 @@
 
 import paddle
 import numpy as np
-from paddle import fluid, nn
+from paddle import fluid
 import paddle.fluid.dygraph as dg
 import paddle.nn.functional as F
-import paddle.fluid.initializer as I
 import unittest
 
 

python/paddle/fluid/tests/unittests/test_allgather.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-import numpy as np
 import paddle
 
 from test_collective_base import TestDistBase

python/paddle/fluid/tests/unittests/test_amp_check_finite_and_scale_op.py

@@ -14,8 +14,7 @@
 
 import unittest
 import numpy as np
-from op_test import OpTest, skip_check_grad_ci
-import paddle.fluid as fluid
+from op_test import OpTest
 import paddle.fluid.contrib.mixed_precision.amp_nn as amp_nn
 
 

python/paddle/fluid/tests/unittests/test_anchor_generator_op.py

@@ -14,8 +14,6 @@
 
 import unittest
 import numpy as np
-import sys
-import math
 from op_test import OpTest
 
 

python/paddle/fluid/tests/unittests/test_arg_min_max_op.py

@@ -17,7 +17,6 @@ import unittest
 import numpy as np
 from op_test import OpTest
 import paddle
-import paddle.fluid as fluid
 import paddle.fluid.core as core
 from paddle.fluid import Program, program_guard
 from test_attribute_var import UnittestBase

python/paddle/fluid/tests/unittests/test_argsort_op.py

@@ -15,12 +15,10 @@
 import unittest
 import paddle
 import paddle.fluid as fluid
-import paddle.fluid.layers as layers
 import numpy as np
 import six
 import paddle.fluid.core as core
 
-from paddle.fluid import ParamAttr
 from paddle.fluid.framework import Program, grad_var_name
 from paddle.fluid.executor import Executor
 from paddle.fluid.backward import append_backward

python/paddle/fluid/tests/unittests/test_array_read_write_op.py

@@ -21,7 +21,7 @@ import paddle.fluid.layers as layers
 from paddle.fluid.executor import Executor
 from paddle.fluid.backward import append_backward
 from paddle.fluid.framework import default_main_program
-from paddle.fluid import compiler, Program, program_guard
+from paddle.fluid import Program, program_guard
 import numpy as np
 
 

python/paddle/fluid/tests/unittests/test_ascend_trigger.py

@@ -14,7 +14,6 @@
 
 import paddle
 import paddle.fluid as fluid
-import paddle.fluid.layers as layers
 import unittest
 
 

python/paddle/fluid/tests/unittests/test_assign_op.py

@@ -17,9 +17,8 @@ import numpy as np
 import unittest
 import paddle
 import paddle.fluid.core as core
-from paddle.fluid.op import Operator
 import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard
+from paddle.fluid import Program, program_guard
 from paddle.fluid.backward import append_backward
 import paddle.fluid.framework as framework
 import gradient_checker

python/paddle/fluid/tests/unittests/test_assign_pos_op.py

@@ -17,10 +17,6 @@ import numpy as np
 import unittest
 import paddle
 import paddle.fluid.core as core
-from paddle.fluid.op import Operator
-import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard
-from paddle.fluid.backward import append_backward
 from paddle.distributed.models.moe import utils
 from paddle.fluid.framework import _test_eager_guard
 

python/paddle/fluid/tests/unittests/test_atan2_op.py

@@ -17,11 +17,7 @@ import unittest
 
 from op_test import OpTest
 import paddle
-import paddle.nn as nn
-import paddle.nn.functional as F
-import paddle.fluid as fluid
 import paddle.fluid.core as core
-from paddle.fluid import compiler, Program, program_guard
 
 paddle.enable_static()
 np.random.seed(0)

python/paddle/fluid/tests/unittests/test_auto_parallel_autoconvert.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-import paddle.fluid as fluid
 
 from test_parallel_dygraph_dataparallel import TestMultipleGpus
 

python/paddle/fluid/tests/unittests/test_auto_parallel_completion.py

@@ -14,7 +14,6 @@
 
 import unittest
 import unittest.mock
-from io import StringIO
 
 import paddle
 import paddle.nn as nn
@@ -23,14 +22,9 @@ import paddle.nn.functional as F
 import paddle.utils as utils
 import paddle.tensor as tensor
 from paddle.fluid import layers
-from paddle.nn.layer.transformer import _convert_param_attr_to_list
 from paddle.distributed.fleet import auto
 from paddle.distributed.auto_parallel.completion import Completer
-from paddle.distributed.auto_parallel.utils import check_distributed_attr_for_program
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
-from paddle.distributed.auto_parallel.utils import append_distributed_attr_suffix
 from paddle.distributed.auto_parallel.dist_context import DistributedContext
-from paddle.distributed.auto_parallel.dist_context import set_default_distributed_context
 
 paddle.enable_static()
 _global_parallel_strategy = None

python/paddle/fluid/tests/unittests/test_auto_parallel_completion_gpt.py

@@ -13,25 +13,18 @@
 # limitations under the License.
 
 import collections
-import math
 import unittest
 
-import numpy as np
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F
 import paddle.tensor as tensor
 import paddle.utils as utils
 from paddle.fluid import layers
-from paddle.fluid.framework import _non_static_mode
 from paddle.nn.layer.transformer import _convert_param_attr_to_list
-from paddle.fluid.initializer import Normal, Constant, NumpyArrayInitializer
-from paddle.distributed.fleet import fleet
 import paddle.static as static
 from paddle.distributed.fleet import auto
 from paddle.distributed.auto_parallel.completion import Completer
-from paddle.distributed.auto_parallel.utils import check_distributed_attr_for_program
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
 from paddle.distributed.auto_parallel.dist_context import DistributedContext
 
 paddle.enable_static()

python/paddle/fluid/tests/unittests/test_auto_parallel_cost_model.py

@@ -14,7 +14,6 @@
 
 import unittest
 
-import copy
 import paddle
 import paddle.nn as nn
 import paddle.static as static
@@ -29,7 +28,6 @@ from paddle.distributed.auto_parallel.parallelizer import AutoParallelizer
 from paddle.distributed.auto_parallel.reshard import Resharder
 from paddle.distributed.auto_parallel.cost_model import estimate_cost
 import paddle.fluid.core as core
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
 
 paddle.enable_static()
 _global_parallel_strategy = "dp_mp_pp"

python/paddle/fluid/tests/unittests/test_auto_parallel_data_unshard.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-import paddle.fluid as fluid
 
 from test_parallel_dygraph_dataparallel import TestMultipleGpus
 

python/paddle/fluid/tests/unittests/test_auto_parallel_dist_tensor.py

@@ -16,7 +16,6 @@ import copy
 import unittest
 
 import paddle
-from paddle.fluid import core
 from paddle.distributed.fleet import auto
 from paddle.distributed.auto_parallel.completion import Completer
 from paddle.distributed import fleet

python/paddle/fluid/tests/unittests/test_auto_parallel_graph.py

@@ -13,10 +13,6 @@
 # limitations under the License.
 
 import unittest
-import os
-import json
-from paddle.distributed.auto_parallel.graph import Node
-from paddle.distributed.auto_parallel.graph import Edge
 from paddle.distributed.auto_parallel.graph import Graph
 
 

python/paddle/fluid/tests/unittests/test_auto_parallel_mapper.py

@@ -16,22 +16,17 @@ import tempfile
 import unittest
 import os
 import json
-import collections
-import math
 import numpy as np
 
 import paddle
 import paddle.nn as nn
 import paddle.fluid as fluid
 import paddle.nn.functional as F
-import paddle.tensor as tensor
 import paddle.utils as utils
 import paddle.static as static
 from paddle.fluid import core
 from paddle.fluid import layers
-from paddle.fluid.framework import _non_static_mode
-from paddle.nn.layer.transformer import _convert_param_attr_to_list
-from paddle.fluid.initializer import Normal, Constant, NumpyArrayInitializer
+from paddle.fluid.initializer import NumpyArrayInitializer
 from paddle.distributed import fleet
 
 from paddle.distributed.fleet import auto
@@ -40,15 +35,7 @@ from paddle.distributed.auto_parallel.parallelizer import AutoParallelizer
 from paddle.distributed.auto_parallel.dist_context import DistributedContext
 from paddle.distributed.auto_parallel.partitioner import Partitioner
 from paddle.distributed.auto_parallel.reshard import Resharder
-from paddle.distributed.auto_parallel.process_group import get_all_process_groups
-from paddle.distributed.auto_parallel.process_group import new_process_group
 from paddle.distributed.auto_parallel.cluster import Cluster
-from paddle.distributed.auto_parallel.cluster import DeviceType
-from paddle.distributed.auto_parallel.cluster import LinkType
-from paddle.distributed.auto_parallel.utils import check_distributed_attr_for_program
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
-from paddle.distributed.auto_parallel.mapper import build_process_graph
-from paddle.distributed.auto_parallel.mapper import build_cluster_graph
 from paddle.distributed.auto_parallel.mapper import mapping
 from paddle.distributed.auto_parallel.mapper import get_dtype_bytes
 from paddle.distributed.auto_parallel.mapper import get_comm_volume

python/paddle/fluid/tests/unittests/test_auto_parallel_partitioner.py

@@ -14,8 +14,6 @@
 
 import unittest
 import unittest.mock
-from io import StringIO
-import numpy as np
 
 import paddle
 import paddle.nn as nn
@@ -24,12 +22,8 @@ import paddle.nn.functional as F
 import paddle.utils as utils
 import paddle.tensor as tensor
 from paddle.fluid import layers
-from paddle.nn.layer.transformer import _convert_param_attr_to_list
 from paddle.distributed.fleet import auto
 from paddle.distributed.auto_parallel.completion import Completer
-from paddle.distributed.auto_parallel.utils import check_distributed_attr_for_program
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
-from paddle.distributed.auto_parallel.utils import append_distributed_attr_suffix
 from paddle.distributed.auto_parallel.dist_context import DistributedContext
 from paddle.distributed import fleet
 from paddle.distributed.auto_parallel.partitioner import Partitioner

python/paddle/fluid/tests/unittests/test_auto_parallel_partitioner_gpt.py

@@ -13,26 +13,18 @@
 # limitations under the License.
 
 import collections
-import math
 import unittest
 
-import numpy as np
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F
 import paddle.tensor as tensor
 import paddle.utils as utils
 from paddle.fluid import layers
-from paddle.fluid.framework import _non_static_mode
 from paddle.nn.layer.transformer import _convert_param_attr_to_list
-from paddle.fluid.initializer import Normal, Constant, NumpyArrayInitializer
-from paddle.distributed import fleet
 import paddle.static as static
 from paddle.distributed.fleet import auto
 from paddle.distributed.auto_parallel.completion import Completer
-from paddle.distributed.auto_parallel.utils import check_distributed_attr_for_program
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
-from paddle.distributed.auto_parallel.dist_context import DistributedContext
 from paddle.distributed.auto_parallel.partitioner import Partitioner
 from paddle.distributed.auto_parallel.parallelizer import AutoParallelizer
 from paddle.distributed.auto_parallel.utils import _get_comm_group

python/paddle/fluid/tests/unittests/test_auto_parallel_reshard.py

@@ -27,7 +27,6 @@ from paddle.distributed.auto_parallel.parallelizer import AutoParallelizer
 from paddle.distributed.auto_parallel.partitioner import Partitioner
 from paddle.distributed.auto_parallel.reshard import Resharder
 from paddle.distributed.auto_parallel.process_group import _g_process_group_map, ProcessGroup
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
 
 paddle.enable_static()
 _global_parallel_strategy = None

python/paddle/fluid/tests/unittests/test_auto_parallel_reshard_dpmppp.py

@@ -26,7 +26,6 @@ from paddle.distributed import fleet
 from paddle.distributed.auto_parallel.parallelizer import AutoParallelizer
 from paddle.distributed.auto_parallel.partitioner import Partitioner
 from paddle.distributed.auto_parallel.reshard import Resharder
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
 from paddle.distributed.auto_parallel.cost import CostEstimator
 from paddle.distributed.auto_parallel.cluster import Cluster
 

python/paddle/fluid/tests/unittests/test_auto_parallel_reshard_mppp.py

@@ -26,7 +26,6 @@ from paddle.distributed import fleet
 from paddle.distributed.auto_parallel.parallelizer import AutoParallelizer
 from paddle.distributed.auto_parallel.partitioner import Partitioner
 from paddle.distributed.auto_parallel.reshard import Resharder
-from paddle.distributed.auto_parallel.utils import print_program_with_dist_attr
 from paddle.distributed.auto_parallel.cost import CostEstimator
 from paddle.distributed.auto_parallel.cluster import Cluster
 

python/paddle/fluid/tests/unittests/test_auto_parallel_reshard_serial.py

@@ -26,9 +26,6 @@ import paddle.utils as utils
 from paddle.distributed.fleet import auto
 from paddle.distributed.auto_parallel.dist_context import get_default_distributed_context
 from paddle.distributed import fleet
-from paddle.distributed.auto_parallel.partitioner import Partitioner
-from paddle.distributed.auto_parallel.reshard import Resharder
-from paddle.distributed.auto_parallel.process_group import new_process_group
 
 paddle.enable_static()
 _global_parallel_strategy = None

python/paddle/fluid/tests/unittests/test_auto_parallel_save_load.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-import paddle.fluid as fluid
 
 from test_parallel_dygraph_dataparallel import TestMultipleGpus
 

python/paddle/fluid/tests/unittests/test_auto_parallel_searcher.py

@@ -12,9 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
-import copy
-import json
 import unittest
 
 import paddle
@@ -22,13 +19,9 @@ import paddle.nn as nn
 import paddle.static as static
 import paddle.nn.functional as F
 import paddle.utils as utils
-from paddle.distributed import fleet
 from paddle.distributed.fleet import auto
-from paddle.distributed.auto_parallel.cluster import Cluster
-from paddle.distributed.auto_parallel.utils import SerialProgramInfo
-from paddle.distributed.auto_parallel.planner import PlanSpace, PlanFilter
+from paddle.distributed.auto_parallel.planner import PlanSpace
 from paddle.distributed.auto_parallel.dist_context import DistributedContext
-from paddle.distributed.auto_parallel.utils import get_all_distributed_main_program
 from paddle.distributed.auto_parallel.dist_attribute import TensorDistributedAttribute
 from paddle.distributed.auto_parallel.dist_attribute import OperatorDistributedAttribute
 from paddle.distributed.auto_parallel.utils import update_op_dims_mapping_by_default_dist_impl

python/paddle/fluid/tests/unittests/test_auto_search_dist_matmul_op.py

@@ -12,9 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import unittest
-import copy
-
-import numpy as np
 
 import paddle
 import paddle.nn as nn
@@ -23,11 +20,8 @@ import paddle.nn.functional as F
 import paddle.utils as utils
 import paddle.fluid.core as core
 from paddle.fluid import layers
-from paddle.distributed.auto_parallel.operators.common import DistributedOperatorImplContainer
-from paddle.distributed.auto_parallel.operators.common import DistributedOperatorImpl
 from paddle.distributed.auto_parallel.operators.common import get_distributed_operator_impl_container
-from paddle.distributed.auto_parallel.dist_context import DistributedContext, DistributedOperatorContext
-from paddle.distributed.auto_parallel.dist_attribute import OperatorDistributedAttribute, TensorDistributedAttribute
+from paddle.distributed.auto_parallel.dist_attribute import OperatorDistributedAttribute
 from paddle.distributed.auto_parallel.dist_op import DistributedOperator
 
 paddle.enable_static()

python/paddle/fluid/tests/unittests/test_auto_search_dist_op.py

@@ -12,9 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import unittest
-import copy
-
-import numpy as np
 
 import paddle
 import paddle.nn as nn
@@ -23,11 +20,8 @@ import paddle.nn.functional as F
 import paddle.utils as utils
 import paddle.fluid.core as core
 from paddle.fluid import layers
-from paddle.distributed.auto_parallel.operators.common import DistributedOperatorImplContainer
-from paddle.distributed.auto_parallel.operators.common import DistributedOperatorImpl
 from paddle.distributed.auto_parallel.operators.common import get_distributed_operator_impl_container
-from paddle.distributed.auto_parallel.dist_context import DistributedContext, DistributedOperatorContext
-from paddle.distributed.auto_parallel.dist_attribute import OperatorDistributedAttribute, TensorDistributedAttribute
+from paddle.distributed.auto_parallel.dist_attribute import OperatorDistributedAttribute
 from paddle.distributed.auto_parallel.dist_op import DistributedOperator
 
 paddle.enable_static()

python/paddle/fluid/tests/unittests/test_backward_infer_var_data_type_shape.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from decorator_helper import prog_scope
 import unittest
 import paddle.fluid as fluid
 import numpy as np

python/paddle/fluid/tests/unittests/test_basic_rnn_name.py

@@ -13,15 +13,10 @@
 # limitations under the License.
 
 import unittest
-import numpy
 import paddle.fluid as fluid
 import paddle.fluid.layers as layers
-import paddle.fluid.core as core
 from paddle.fluid.contrib.layers import basic_gru, basic_lstm
-from paddle.fluid.executor import Executor
-from paddle.fluid import framework
 from test_imperative_base import new_program_scope
-import numpy as np
 
 
 class TestBasicGRUApiName(unittest.TestCase):

python/paddle/fluid/tests/unittests/test_batch_fc_op.py

@@ -14,11 +14,8 @@
 
 import unittest
 import numpy as np
-import random
 from op_test import OpTest
-import paddle.fluid as fluid
-from paddle.fluid import Program, program_guard
-from op_test import OpTest, skip_check_grad_ci
+from op_test import OpTest
 import paddle.fluid.core as core
 
 

python/paddle/fluid/tests/unittests/test_batch_norm_op_v2.py

@@ -12,14 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os
 import unittest
 import numpy as np
 import paddle.fluid.core as core
-from paddle.fluid.op import Operator
 import paddle.fluid as fluid
-from op_test import OpTest, _set_use_system_allocator
-from paddle.fluid.framework import grad_var_name, _test_eager_guard
+from paddle.fluid.framework import _test_eager_guard
 import paddle.fluid as fluid
 from paddle.fluid import Program, program_guard
 import paddle

python/paddle/fluid/tests/unittests/test_batch_sampler.py

@@ -15,10 +15,8 @@
 import unittest
 
 import numpy as np
-import paddle.fluid as fluid
 from paddle.io import BatchSampler, Dataset, Sampler, SequenceSampler, \
                         RandomSampler, WeightedRandomSampler
-from paddle.io import DistributedBatchSampler
 
 IMAGE_SIZE = 32
 

python/paddle/fluid/tests/unittests/test_bce_with_logits_loss.py

@@ -16,7 +16,6 @@ import paddle
 import paddle.fluid as fluid
 import numpy as np
 import unittest
-from op_test import OpTest
 from paddle.fluid.framework import _test_eager_guard
 
 

python/paddle/fluid/tests/unittests/test_beam_search_op.py

@@ -12,8 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
-from paddle.fluid.op import Operator, DynamicRecurrentOp
+from paddle.fluid.op import Operator
 import paddle.fluid.core as core
 import unittest
 import numpy as np

python/paddle/fluid/tests/unittests/test_bernoulli_op.py

@@ -16,7 +16,6 @@ import unittest
 import paddle
 from op_test import OpTest
 import numpy as np
-import os
 
 
 def output_hist(out):

python/paddle/fluid/tests/unittests/test_bicubic_interp_op.py

@@ -15,7 +15,6 @@
 import unittest
 import numpy as np
 from op_test import OpTest
-import paddle.fluid.core as core
 import paddle.fluid as fluid
 import paddle
 from paddle.fluid import Program, program_guard

python/paddle/fluid/tests/unittests/test_bicubic_interp_v2_op.py

@@ -14,8 +14,7 @@
 
 import unittest
 import numpy as np
-from op_test import OpTest, _in_eager_without_dygraph_check
-import paddle.fluid.core as core
+from op_test import OpTest
 import paddle.fluid as fluid
 import paddle
 from paddle.fluid import Program, program_guard

python/paddle/fluid/tests/unittests/test_bilinear_api.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-from op_test import OpTest
 
 import paddle
 import paddle.fluid as fluid

python/paddle/fluid/tests/unittests/test_bincount_op.py

@@ -18,8 +18,6 @@ import tempfile
 import numpy as np
 import paddle
 import paddle.fluid as fluid
-import paddle.fluid.core as core
-from paddle.fluid import Program, program_guard
 from op_test import OpTest
 import paddle.inference as paddle_infer
 from paddle.fluid.framework import in_dygraph_mode

python/paddle/fluid/tests/unittests/test_bmm_op.py

@@ -17,8 +17,6 @@ import numpy as np
 from op_test import OpTest
 import paddle
 import paddle.fluid as fluid
-import paddle.tensor as tensor
-from paddle.fluid import Program, program_guard
 
 
 class TestBmmOp(OpTest):

python/paddle/fluid/tests/unittests/test_box_clip_op.py

@@ -14,10 +14,7 @@
 
 import unittest
 import numpy as np
-import sys
-import math
 from op_test import OpTest
-import copy
 
 
 def box_clip(input_box, im_info, output_box):

python/paddle/fluid/tests/unittests/test_box_coder_op.py

@@ -14,8 +14,6 @@
 
 import unittest
 import numpy as np
-import sys
-import math
 from op_test import OpTest
 import paddle
 import paddle.fluid.core as core

python/paddle/fluid/tests/unittests/test_box_decoder_and_assign_op.py

@@ -14,8 +14,6 @@
 
 import unittest
 import numpy as np
-import sys
-import math
 from op_test import OpTest
 
 

python/paddle/fluid/tests/unittests/test_boxps.py

@@ -14,10 +14,6 @@
 
 import paddle
 import paddle.fluid as fluid
-import paddle.fluid.layers as layers
-import numpy as np
-import os
-import shutil
 import paddle.fluid.core as core
 import unittest
 from paddle.fluid.layers.nn import _pull_box_sparse

python/paddle/fluid/tests/unittests/test_broadcast_shape.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-import numpy as np
 import paddle
 
 

python/paddle/fluid/tests/unittests/test_broadcast_tensors_op.py

@@ -17,7 +17,6 @@ import numpy as np
 import paddle
 import paddle.fluid.core as core
 from op_test import OpTest
-from test_collective_base import TestDistBase
 
 import random
 

python/paddle/fluid/tests/unittests/test_broadcast_to_op.py

@@ -14,9 +14,8 @@
 
 import unittest
 import numpy as np
-from op_test import OpTest
 import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard
+from paddle.fluid import Program, program_guard
 import paddle
 
 paddle.enable_static()

python/paddle/fluid/tests/unittests/test_bucketize_api.py

@@ -12,14 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from re import X
-
 import unittest
 import numpy as np
 import paddle
-import paddle.fluid as fluid
 import paddle.fluid.core as core
-from paddle.fluid import Program, program_guard
 
 np.random.seed(10)
 

python/paddle/fluid/tests/unittests/test_buffer_shared_memory_reuse_pass.py

@@ -14,12 +14,10 @@
 
 import paddle
 import paddle.fluid as fluid
-from paddle.fluid.framework import Parameter
 import numpy as np
 from simple_nets import simple_fc_net
 import random
 import unittest
-import os
 
 batch_size = 32
 

python/paddle/fluid/tests/unittests/test_c_comm_init_all_op.py

@@ -14,7 +14,6 @@
 
 import unittest
 import paddle
-import paddle.fluid.core as core
 import paddle.fluid as fluid
 
 

python/paddle/fluid/tests/unittests/test_c_embedding_op.py

@@ -13,11 +13,6 @@
 # limitations under the License.
 
 import unittest
-import numpy as np
-from op_test import OpTest
-import paddle
-import paddle.fluid as fluid
-from paddle.framework import core
 from paddle.fluid.tests.unittests.c_embedding_op_base import TestCEmbeddingCPU, TestCEmbeddingOpBase, TestCEmbeddingOpFP32
 
 TestCEmbeddingCPU()

python/paddle/fluid/tests/unittests/test_cast_op.py

@@ -18,7 +18,7 @@ import numpy as np
 import paddle
 import paddle.fluid.core as core
 import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard
+from paddle.fluid import Program, program_guard
 from op_test import OpTest, convert_uint16_to_float, convert_float_to_uint16
 from paddle.fluid.framework import _test_eager_guard
 import gradient_checker

python/paddle/fluid/tests/unittests/test_center_loss.py

@@ -15,7 +15,6 @@
 import unittest
 import numpy as np
 from op_test import OpTest
-import paddle.fluid.core as core
 import paddle.fluid as fluid
 
 

python/paddle/fluid/tests/unittests/test_checkpoint_saver.py

@@ -13,15 +13,9 @@
 # limitations under the License.
 
 import unittest
-import paddle.fluid as fluid
-import paddle.fluid.incubate.fleet.base.role_maker as role_maker
-from paddle.fluid.incubate.fleet.collective import CollectiveOptimizer, fleet
-from paddle.fluid.incubate.checkpoint.auto_checkpoint import ExeTrainStatus
 from paddle.fluid.incubate.checkpoint.checkpoint_saver import CheckpointSaver
-import os
-import sys
 
-from paddle.distributed.fleet.utils.fs import LocalFS, HDFSClient
+from paddle.distributed.fleet.utils.fs import HDFSClient
 from paddle.fluid.incubate.checkpoint.checkpoint_saver import CheckpointSaver
 
 

python/paddle/fluid/tests/unittests/test_cholesky_op.py

@@ -128,10 +128,8 @@ class TestCholeskySingularAPI(unittest.TestCase):
                                   fetch_list=[result])
             except RuntimeError as ex:
                 print("The mat is singular")
-                pass
             except ValueError as ex:
                 print("The mat is singular")
-                pass
 
     def test_static(self):
         for place in self.places:
@@ -148,10 +146,8 @@ class TestCholeskySingularAPI(unittest.TestCase):
                     result = paddle.cholesky(input)
                 except RuntimeError as ex:
                     print("The mat is singular")
-                    pass
                 except ValueError as ex:
                     print("The mat is singular")
-                    pass
 
 
 if __name__ == "__main__":

python/paddle/fluid/tests/unittests/test_chunk_op.py

@@ -14,7 +14,6 @@
 
 import unittest
 import numpy as np
-from op_test import OpTest
 import numpy as np
 from paddle.fluid import Program, program_guard
 from paddle import fluid

python/paddle/fluid/tests/unittests/test_class_center_sample_op.py

@@ -14,8 +14,6 @@
 
 import unittest
 import numpy as np
-import math
-import random
 import paddle
 import paddle.fluid.core as core
 from op_test import OpTest

python/paddle/fluid/tests/unittests/test_collect_fpn_proposals_op.py

@@ -14,8 +14,6 @@
 
 import unittest
 import numpy as np
-import math
-import sys
 from op_test import OpTest
 
 

python/paddle/fluid/tests/unittests/test_collective_api_base.py

@@ -14,19 +14,14 @@
 
 import numpy as np
 import unittest
-import time
-import argparse
 import os
 import sys
 import subprocess
-import traceback
-import functools
 import pickle
 import tempfile
 from contextlib import closing
 import paddle
 import paddle.fluid as fluid
-import paddle.fluid.unique_name as nameGen
 from paddle.fluid import core
 
 
@@ -157,7 +152,6 @@ def runtime_main(test_class, col_type):
     model.run_trainer(args)
 
 
-import paddle.compat as cpt
 import socket
 from contextlib import closing
 

python/paddle/fluid/tests/unittests/test_collective_base.py

@@ -15,12 +15,9 @@
 import numpy as np
 import unittest
 import time
-import argparse
 import os
 import sys
 import subprocess
-import traceback
-import functools
 import pickle
 import tempfile
 from contextlib import closing
@@ -130,7 +127,6 @@ def runtime_main(test_class, col_type, sub_type):
     model.run_trainer(args)
 
 
-import paddle.compat as cpt
 import socket
 from contextlib import closing
 

python/paddle/fluid/tests/unittests/test_communicator_async.py

@@ -15,8 +15,6 @@
 import os
 import unittest
 import time
-import threading
-import numpy
 
 import paddle
 

python/paddle/fluid/tests/unittests/test_communicator_geo.py

@@ -15,7 +15,6 @@
 import os
 import sys
 import time
-import threading
 import subprocess
 import unittest
 import numpy

python/paddle/fluid/tests/unittests/test_communicator_ps_gpu.py

@@ -15,8 +15,6 @@
 import os
 import unittest
 import time
-import threading
-import numpy
 import tempfile
 
 import paddle

python/paddle/fluid/tests/unittests/test_compare_reduce_op.py

@@ -17,7 +17,6 @@ import unittest
 import numpy as np
 import paddle
 import paddle.fluid as fluid
-from paddle.fluid import Program, program_guard
 
 
 def create_test_not_equal_class(op_type, typename, callback):

python/paddle/fluid/tests/unittests/test_complex_getitem.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 import unittest
-import paddle
 import numpy as np
 import paddle.fluid as fluid
 import paddle.fluid.dygraph as dg

python/paddle/fluid/tests/unittests/test_complex_kron.py

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from paddle import fluid, tensor
+from paddle import fluid
 import paddle
 import paddle.fluid.dygraph as dg
 import numpy as np

python/paddle/fluid/tests/unittests/test_complex_trace_layer.py

@@ -14,7 +14,6 @@
 
 import unittest
 import numpy as np
-import paddle
 from numpy.random import random as rand
 from paddle import tensor
 import paddle.fluid as fluid

python/paddle/fluid/tests/unittests/test_concat_op.py

@@ -16,7 +16,7 @@ import unittest
 import numpy as np
 from paddle.fluid.tests.unittests.op_test import OpTest, skip_check_grad_ci, convert_float_to_uint16
 import paddle.fluid as fluid
-from paddle.fluid import compiler, Program, program_guard, core
+from paddle.fluid import Program, core, program_guard
 from paddle.fluid.framework import _test_eager_guard
 import paddle
 import gradient_checker

python/paddle/fluid/tests/unittests/test_conj_op.py

@@ -15,12 +15,10 @@
 import unittest
 import numpy as np
 import paddle
-import paddle.fluid.core as core
 import sys
 
 sys.path.append("..")
 from op_test import OpTest
-from paddle.fluid import Program, program_guard
 import paddle.fluid.dygraph as dg
 import paddle.static as static
 from numpy.random import random as rand

python/paddle/fluid/tests/unittests/test_conv1d_layer.py

@@ -17,7 +17,6 @@ import paddle
 from paddle import fluid, nn
 import paddle.fluid.dygraph as dg
 import paddle.nn.functional as F
-import paddle.fluid.initializer as I
 import unittest
 
 

python/paddle/fluid/tests/unittests/test_conv1d_transpose_layer.py

@@ -17,7 +17,6 @@ import paddle
 from paddle import fluid, nn
 import paddle.fluid.dygraph as dg
 import paddle.nn.functional as F
-import paddle.fluid.initializer as I
 import unittest
 
 

python/paddle/fluid/tests/unittests/test_conv2d_api.py

@@ -20,8 +20,6 @@ import paddle
 paddle.enable_static()
 import paddle.fluid.core as core
 import paddle.fluid as fluid
-from op_test import OpTest
-from paddle.fluid import Program, program_guard
 
 
 class TestConv2DAPI(unittest.TestCase):

python/paddle/fluid/tests/unittests/test_conv2d_op_depthwise_conv.py

@@ -19,9 +19,6 @@ import paddle
 
 paddle.enable_static()
 import paddle.fluid.core as core
-import paddle.fluid as fluid
-from op_test import OpTest
-from paddle.fluid import Program, program_guard
 from test_conv2d_op import TestConv2DOp, TestConv2DOp_v2, create_test_padding_SAME_class, create_test_padding_VALID_class, create_test_channel_last_class, create_test_cudnn_padding_SAME_class, create_test_cudnn_channel_last_class
 
 #----------------TestDepthwiseConv -----

python/paddle/fluid/tests/unittests/test_conv2d_transpose_op_depthwise_conv.py

@@ -18,9 +18,6 @@ import numpy as np
 import paddle
 
 paddle.enable_static()
-import paddle.fluid.core as core
-import paddle.fluid as fluid
-from op_test import OpTest
 from test_conv2d_transpose_op import TestConv2DTransposeOp
 
 

python/paddle/fluid/tests/unittests/test_conv3d_transpose_op.py

@@ -19,7 +19,6 @@ import paddle
 
 paddle.enable_static()
 import paddle.fluid.core as core
-import paddle.fluid as fluid
 from op_test import OpTest
 
 

python/paddle/fluid/tests/unittests/test_conv3d_transpose_part2_op.py

@@ -17,7 +17,6 @@ import numpy as np
 
 import paddle.fluid.core as core
 import paddle.fluid as fluid
-from op_test import OpTest
 from test_conv3d_transpose_op import TestConv3DTransposeOp
 
 

python/paddle/fluid/tests/unittests/test_corr.py

@@ -15,10 +15,7 @@
 import paddle.fluid as fluid
 import unittest
 import numpy as np
-import six
 import paddle
-import warnings
-import sys
 
 np_minor_version = int((np.__version__).split('.')[1])
 

python/paddle/fluid/tests/unittests/test_cosine_similarity_api.py

@@ -14,7 +14,6 @@
 
 import unittest
 import numpy as np
-from op_test import OpTest
 import paddle
 import paddle.nn as nn
 import paddle.nn.functional as F

python/paddle/fluid/tests/unittests/test_count_nonzero_api.py

@@ -15,9 +15,7 @@
 import unittest
 import numpy as np
 import paddle
-import paddle.fluid as fluid
 import paddle.fluid.core as core
-from paddle.fluid import Program, program_guard
 
 np.random.seed(10)
 

python/paddle/fluid/tests/unittests/test_cov.py

@@ -15,9 +15,8 @@
 import paddle.fluid as fluid
 import unittest
 import numpy as np
-import six
 import paddle
-from paddle.fluid.framework import _test_eager_guard, in_dygraph_mode
+from paddle.fluid.framework import _test_eager_guard
 
 
 def numpy_cov(np_arr, rowvar=True, ddof=1, fweights=None, aweights=None):

python/paddle/fluid/tests/unittests/test_create_global_var.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os, shutil
 import unittest
 import numpy as np
 import paddle.fluid as fluid

python/paddle/fluid/tests/unittests/test_create_parameter.py

@@ -12,12 +12,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import os, shutil
 import unittest
 import numpy as np
 import paddle.fluid as fluid
 from paddle.fluid import Program, program_guard
-from paddle.fluid import ParamAttr, initializer
 import paddle
 
 

python/paddle/fluid/tests/unittests/test_cross_op.py

@@ -14,7 +14,6 @@
 
 import unittest
 import numpy as np
-import paddle.fluid.core as core
 from op_test import OpTest
 import paddle
 import paddle.fluid as fluid