[CodeStyle][isort] introducing isort (part1) (#46475)

* add isort config

* isort all files

.pre-commit-config.yaml

@@ -60,6 +60,10 @@ repos:
     hooks:
     -   id: black
         files: (.*\.(py|pyi|bzl)|BUILD|.*\.BUILD|WORKSPACE)$
+-   repo: https://github.com/pycqa/isort
+    rev: 5.10.1
+    hooks:
+    -   id: isort
 -   repo: https://github.com/PyCQA/flake8
     rev: 4.0.1
     hooks:

pyproject.toml

@@ -2,3 +2,30 @@
 exclude = "build"
 line-length = 80
 skip-string-normalization = true
+
+[tool.isort]
+profile = "black"
+line_length = 80
+known_first_party = ["paddle"]
+skip = ["build", "__init__.py"]
+extend_skip_glob = [
+    # These files do not need to be formatted,
+    # see .flake8 for more details
+    "python/paddle/fluid/[!t]**",
+    "python/paddle/fluid/tra**",
+    "*_pb2.py",
+    "python/paddle/utils/gast/**",
+    "python/paddle/fluid/tests/unittests/npu/**",
+    "python/paddle/fluid/tests/unittests/mlu/**",
+
+    # These files will be fixed in the future
+    "cmake/**",
+    "paddle/**",
+    "r/**",
+    "tools/**",
+    "python/paddle/[!f]**",
+    "python/paddle/fluid/tests/unittests/[t-z]**",
+    "python/paddle/fluid/tests/unittests/dygraph_to_static/test_error.py",
+    "python/paddle/fluid/tests/unittests/dygraph_to_static/**",
+    "python/paddle/fluid/tests/unittests/ipu/test_dy2static_ipu.py",
+]

python/paddle/fft.py

@@ -13,14 +13,17 @@
 # limitations under the License.
 
 from typing import Sequence
+
 import numpy as np
+
 import paddle
-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
 from .fluid.data_feeder import check_variable_and_dtype
+from .fluid.framework import _in_legacy_dygraph, in_dygraph_mode
 from .fluid.layer_helper import LayerHelper
+from .tensor.attribute import is_floating_point, is_integer
+from .tensor.creation import _complex_to_real_dtype, _real_to_complex_dtype
 
 __all__ = [
     'fft',

python/paddle/fluid/tests/book/notest_understand_sentiment.py

@@ -12,14 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest
-import paddle.fluid as fluid
-import paddle
 import contextlib
 import math
-import numpy as np
-import sys
 import os
+import sys
+import unittest
+
+import numpy as np
+
+import paddle
+import paddle.fluid as fluid
 
 
 def convolution_net(

python/paddle/fluid/tests/book/test_fit_a_line.py

@@ -12,18 +12,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
-import paddle.fluid as fluid
-import paddle.static.amp as amp
-
 import contextlib
-import numpy
-import unittest
 import math
-import sys
 import os
 import struct
+import sys
 import tempfile
+import unittest
+
+import numpy
+
+import paddle
+import paddle.fluid as fluid
+import paddle.static.amp as amp
 
 paddle.enable_static()
 

python/paddle/fluid/tests/book/test_image_classification.py

@@ -12,15 +12,17 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
-import paddle.fluid as fluid
 import contextlib
 import math
-import sys
-import numpy
-import unittest
 import os
+import sys
 import tempfile
+import unittest
+
+import numpy
+
+import paddle
+import paddle.fluid as fluid
 
 paddle.enable_static()
 

python/paddle/fluid/tests/book/test_label_semantic_roles.py

@@ -13,11 +13,12 @@
 # limitations under the License.
 
 import contextlib
-import numpy as np
 import os
+import tempfile
 import time
 import unittest
-import tempfile
+
+import numpy as np
 
 import paddle
 import paddle.dataset.conll05 as conll05

python/paddle/fluid/tests/book/test_machine_translation.py

@@ -13,15 +13,16 @@
 # limitations under the License.
 
 import contextlib
+import os
+import unittest
 
 import numpy as np
+
 import paddle
 import paddle.fluid as fluid
 import paddle.fluid.framework as framework
 import paddle.fluid.layers as pd
 from paddle.fluid.executor import Executor
-import unittest
-import os
 
 paddle.enable_static()
 

python/paddle/fluid/tests/book/test_recognize_digits.py

@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle.fluid.core as core
 import math
 import os
 import sys
@@ -22,6 +21,7 @@
 
 import paddle
 import paddle.fluid as fluid
+import paddle.fluid.core as core
 
 paddle.enable_static()
 

python/paddle/fluid/tests/book/test_recommender_system.py

@@ -13,15 +13,17 @@
 # limitations under the License.
 
 import math
-import sys
 import os
+import sys
+import tempfile
+
 import numpy as np
+
 import paddle
 import paddle.fluid as fluid
 import paddle.fluid.framework as framework
 import paddle.fluid.layers as layers
 import paddle.fluid.nets as nets
-import tempfile
 from paddle.fluid.executor import Executor
 from paddle.fluid.optimizer import SGDOptimizer
 

python/paddle/fluid/tests/book/test_rnn_encoder_decoder.py

@@ -12,18 +12,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import numpy as np
-import paddle
-import paddle.fluid as fluid
-import paddle.fluid.framework as framework
 import contextlib
 import math
-import sys
 import os
-import unittest
+import sys
 import tempfile
-from paddle.fluid.executor import Executor
+import unittest
+
+import numpy as np
+
 import paddle
+import paddle.fluid as fluid
+import paddle.fluid.framework as framework
+from paddle.fluid.executor import Executor
 
 paddle.enable_static()
 

python/paddle/fluid/tests/book/test_word2vec_book.py

@@ -12,14 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import paddle
-import paddle.fluid as fluid
-import unittest
-import os
-import numpy as np
 import math
+import os
 import sys
 import tempfile
+import unittest
+
+import numpy as np
+
+import paddle
+import paddle.fluid as fluid
 
 paddle.enable_static()
 

python/paddle/fluid/tests/custom_kernel/custom_kernel_dot_c_setup.py

@@ -13,11 +13,13 @@
 # limitations under the License.
 
 import os
-from paddle.fluid import core
+from distutils.core import Extension, setup
 from distutils.sysconfig import get_python_lib
-from distutils.core import setup, Extension
+
 from setuptools.command.build_ext import build_ext
 
+from paddle.fluid import core
+
 
 # refer: https://note.qidong.name/2018/03/setup-warning-strict-prototypes
 # Avoid a gcc warning below:

python/paddle/fluid/tests/custom_kernel/custom_kernel_dot_setup.py

@@ -14,10 +14,12 @@
 
 import os
 import site
-from paddle.fluid import core
-from distutils.core import setup, Extension
+from distutils.core import Extension, setup
+
 from setuptools.command.build_ext import build_ext
 
+from paddle.fluid import core
+
 
 # refer: https://note.qidong.name/2018/03/setup-warning-strict-prototypes
 # Avoid a gcc warning below:

python/paddle/fluid/tests/custom_kernel/test_custom_kernel_dot.py

@@ -15,6 +15,7 @@
 import os
 import sys
 import unittest
+
 import numpy as np
 
 

python/paddle/fluid/tests/custom_kernel/test_custom_kernel_load.py

@@ -13,9 +13,10 @@
 # limitations under the License.
 
 import os
-import sys
 import site
+import sys
 import unittest
+
 import numpy as np
 
 

python/paddle/fluid/tests/custom_op/custom_raw_op_kernel_op_setup.py

@@ -13,10 +13,12 @@
 # limitations under the License.
 
 import os
+
+from utils import extra_compile_args, paddle_includes
+
 import paddle
 import paddle.fluid.core as core
 from paddle.utils.cpp_extension import CppExtension, CUDAExtension, setup
-from utils import paddle_includes, extra_compile_args
 
 if paddle.is_compiled_with_cuda():
     sources = ['custom_raw_op_kernel_op.cc', 'custom_raw_op_kernel_op.cu']

python/paddle/fluid/tests/custom_op/custom_relu_setup.py

@@ -12,8 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from utils import paddle_includes, extra_compile_args, IS_MAC
-from paddle.utils.cpp_extension import CUDAExtension, setup, CppExtension
+from utils import IS_MAC, extra_compile_args, paddle_includes
+
+from paddle.utils.cpp_extension import CppExtension, CUDAExtension, setup
 
 # Mac-CI don't support GPU
 Extension = CppExtension if IS_MAC else CUDAExtension

python/paddle/fluid/tests/custom_op/test_check_abi.py

@@ -12,8 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest
 import os
+import unittest
 import warnings
 
 import paddle.utils.cpp_extension.extension_utils as utils

python/paddle/fluid/tests/custom_op/test_context_pool.py

@@ -14,13 +14,14 @@
 
 import os
 import unittest
+
 import numpy as np
+from utils import extra_cc_args, extra_nvcc_args, paddle_includes
 
 import paddle
-from paddle.utils.cpp_extension import load, get_build_directory
-from utils import paddle_includes, extra_cc_args, extra_nvcc_args
-from paddle.utils.cpp_extension.extension_utils import run_cmd
 from paddle.fluid.framework import _test_eager_guard
+from paddle.utils.cpp_extension import get_build_directory, load
+from paddle.utils.cpp_extension.extension_utils import run_cmd
 
 # Because Windows don't use docker, the shared lib already exists in the
 # cache dir, it will not be compiled again unless the shared lib is removed.

python/paddle/fluid/tests/custom_op/test_custom_attrs_jit.py

@@ -14,13 +14,14 @@
 
 import os
 import unittest
+
 import numpy as np
+from utils import extra_cc_args, extra_nvcc_args, paddle_includes
 
 import paddle
-from paddle.utils.cpp_extension import load, get_build_directory
-from utils import paddle_includes, extra_cc_args, extra_nvcc_args
-from paddle.utils.cpp_extension.extension_utils import run_cmd
 from paddle.fluid.framework import _test_eager_guard
+from paddle.utils.cpp_extension import get_build_directory, load
+from paddle.utils.cpp_extension.extension_utils import run_cmd
 
 # Because Windows don't use docker, the shared lib already exists in the
 # cache dir, it will not be compiled again unless the shared lib is removed.

python/paddle/fluid/tests/custom_op/test_custom_concat.py

@@ -14,14 +14,15 @@
 
 import os
 import unittest
+
 import numpy as np
+from utils import extra_cc_args, extra_nvcc_args, paddle_includes
 
 import paddle
 import paddle.static as static
-from paddle.utils.cpp_extension import load, get_build_directory
-from paddle.utils.cpp_extension.extension_utils import run_cmd
-from utils import paddle_includes, extra_cc_args, extra_nvcc_args
 from paddle.fluid.framework import _test_eager_guard
+from paddle.utils.cpp_extension import get_build_directory, load
+from paddle.utils.cpp_extension.extension_utils import run_cmd
 
 # Because Windows don't use docker, the shared lib already exists in the
 # cache dir, it will not be compiled again unless the shared lib is removed.