[CodeStyle][F401] remove unused imports in python/paddle (#46731)

python/paddle/_C_ops.py

@@ -13,7 +13,6 @@
 # limitations under the License.
 
 from paddle.fluid import core
-from .fluid import framework
 
 __all__ = []
 

python/paddle/check_import_scipy.py

@@ -17,7 +17,7 @@ def check_import_scipy(OsName):
     print_info = ""
     if OsName == 'nt':
         try:
-            import scipy.io as scio
+            import scipy.io as scio  # noqa: F401
         except ImportError as e:
             print_info = str(e)
         if (len(print_info) > 0):

python/paddle/common_ops_import.py

@@ -11,18 +11,15 @@
 # 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 six.moves import reduce
-from paddle.fluid.layer_helper import LayerHelper
-from paddle.fluid.param_attr import ParamAttr
-from paddle.fluid.framework import convert_np_dtype_to_dtype_, _non_static_mode, _varbase_creator, in_dygraph_mode, _in_legacy_dygraph
-from paddle.fluid.framework import device_guard, default_main_program, dygraph_only, _dygraph_tracer
-from paddle.fluid.framework import OpProtoHolder, Variable
-from paddle.fluid.initializer import Constant
-from paddle.fluid.core import VarDesc
-from paddle.fluid import core, dygraph_utils
-from paddle.fluid.data_feeder import check_type, check_dtype, check_variable_and_dtype, convert_dtype
-from paddle.fluid.layers import fill_constant, utils, scale
-from paddle.tensor.layer_function_generator import templatedoc
-import paddle.fluid as fluid
-import numpy
-import warnings
+from paddle.fluid.layer_helper import LayerHelper  # noqa: F401
+from paddle.fluid.param_attr import ParamAttr  # noqa: F401
+from paddle.fluid.framework import convert_np_dtype_to_dtype_, _non_static_mode, _varbase_creator, in_dygraph_mode, _in_legacy_dygraph  # noqa: F401
+from paddle.fluid.framework import device_guard, default_main_program, dygraph_only, _dygraph_tracer  # noqa: F401
+from paddle.fluid.framework import OpProtoHolder, Variable  # noqa: F401
+from paddle.fluid.initializer import Constant  # noqa: F401
+from paddle.fluid.core import VarDesc  # noqa: F401
+from paddle.fluid import core, dygraph_utils  # noqa: F401
+from paddle.fluid.data_feeder import check_type, check_dtype, check_variable_and_dtype, convert_dtype  # noqa: F401
+from paddle.fluid.layers import fill_constant, utils, scale  # noqa: F401
+from paddle.tensor.layer_function_generator import templatedoc  # noqa: F401
+import paddle.fluid as fluid  # noqa: F401

python/paddle/fft.py

@@ -15,7 +15,7 @@
 from typing import Sequence
 import numpy as np
 import paddle
-from .tensor.attribute import is_complex, is_floating_point, is_integer
+from .tensor.attribute import is_floating_point, is_integer
 from .tensor.creation import _real_to_complex_dtype, _complex_to_real_dtype
 from .fluid.framework import _in_legacy_dygraph, in_dygraph_mode
 from . import _C_ops, _legacy_C_ops

python/paddle/nn/functional/extension.py

@@ -25,8 +25,7 @@ from paddle import in_dynamic_mode
 from paddle import _C_ops, _legacy_C_ops
 from ...fluid.framework import _non_static_mode, _in_legacy_dygraph, in_dygraph_mode
 from ...fluid.data_feeder import check_variable_and_dtype, check_type
-from ...framework import core
-from ...common_ops_import import convert_np_dtype_to_dtype_
+from ...framework import core, convert_np_dtype_to_dtype_
 
 __all__ = []
 

python/paddle/signal.py

@@ -12,11 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from typing import Optional
-
 import paddle
 
-from .tensor.attribute import is_complex, is_floating_point
+from .tensor.attribute import is_complex
 from .fft import fft_r2c, fft_c2r, fft_c2c
 from .fluid.data_feeder import check_variable_and_dtype
 from .fluid.framework import _non_static_mode

python/paddle/tensor/einsum.py

@@ -29,8 +29,6 @@ import collections
 import string
 import opt_einsum
 
-from paddle.common_ops_import import dygraph_only
-
 __all__ = []
 
 

python/paddle/tensor/linalg.py

@@ -25,7 +25,6 @@ from .creation import full
 
 import paddle
 import warnings
-from paddle.common_ops_import import core
 from paddle.common_ops_import import VarDesc
 from paddle import _C_ops, _legacy_C_ops
 

python/paddle/tensor/math.py

@@ -18,7 +18,6 @@ import numpy as np
 
 from paddle.common_ops_import import VarDesc
 from paddle.common_ops_import import dygraph_only
-from paddle.common_ops_import import OpProtoHolder
 from paddle.common_ops_import import templatedoc
 from paddle.common_ops_import import dygraph_utils
 

python/paddle/tensor/search.py

@@ -13,12 +13,11 @@
 # limitations under the License.
 import numpy as np
 import paddle
-from ..framework import LayerHelper
+from ..framework import LayerHelper, convert_np_dtype_to_dtype_
 from ..fluid.data_feeder import check_variable_and_dtype, check_type, check_dtype
 from ..fluid import layers
 from ..framework import core, in_dygraph_mode, _non_static_mode
 from ..fluid.framework import _in_legacy_dygraph
-from paddle.common_ops_import import convert_np_dtype_to_dtype_
 from paddle.common_ops_import import Variable
 from paddle.common_ops_import import VarDesc
 from paddle import _C_ops, _legacy_C_ops