[BE][Easy][5/19] enforce style for empty lines in import segments in tools/ and torchgen/ (#129756)

See https://github.com/pytorch/pytorch/pull/129751#issue-2380881501. Most changes are auto-generated by linter.

You can review these PRs via:

```bash
git diff --ignore-all-space --ignore-blank-lines HEAD~1
```

Pull Request resolved: https://github.com/pytorch/pytorch/pull/129756
Approved by: https://github.com/ezyang

tools/amd_build/build_amd.py

@@ -5,6 +5,7 @@ import argparse
 import os
 import sys
 
+
 sys.path.append(
     os.path.realpath(
         os.path.join(
@@ -15,6 +16,7 @@ sys.path.append(
 
 from hipify import hipify_python  # type: ignore[import]
 
+
 parser = argparse.ArgumentParser(
     description="Top-level script for HIPifying, filling in most common parameters"
 )

tools/autograd/gen_inplace_or_view_type.py

@@ -24,7 +24,7 @@ from torchgen.api.types import (
     OptionalCType,
     symIntArrayRefT,
     SymIntT,
-    tensorT,  # See Note [Nested Arg Types]
+    tensorT,
 )
 from torchgen.code_template import CodeTemplate
 from torchgen.context import with_native_function

tools/build_libtorch.py

@@ -2,6 +2,7 @@ import argparse
 import sys
 from os.path import abspath, dirname
 
+
 # By appending pytorch_root to sys.path, this module can import other torch
 # modules even when run as a standalone script. i.e., it's okay either you
 # do `python build_libtorch.py` or `python -m tools.build_libtorch`.
@@ -11,6 +12,7 @@ sys.path.append(pytorch_root)
 from tools.build_pytorch_libs import build_caffe2
 from tools.setup_helpers.cmake import CMake
 
+
 if __name__ == "__main__":
     # Placeholder for future interface. For now just gives a nice -h.
     parser = argparse.ArgumentParser(description="Build libtorch")

tools/linter/adapters/s3_init.py

@@ -11,6 +11,7 @@ import urllib.error
 import urllib.request
 from pathlib import Path
 
+
 # String representing the host platform (e.g. Linux, Darwin).
 HOST_PLATFORM = platform.system()
 HOST_PLATFORM_ARCH = platform.system() + "-" + platform.processor()

tools/linter/adapters/ufmt_linter.py

@@ -36,9 +36,7 @@ ISORT_WHITELIST = re.compile(
                     # functorch/**
                     "functorch/**",
                     # tools/**
-                    "tools/**",
                     # torchgen/**
-                    "torchgen/**",
                     # test/**
                     # test/[a-c]*/**
                     "test/[a-c]*/**",

tools/setup_helpers/gen.py

@@ -3,9 +3,11 @@
 import os.path
 import sys
 
+
 root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 sys.path.insert(0, root)
 
 import torchgen.gen
 
+
 torchgen.gen.main()

tools/setup_helpers/gen_unboxing.py

@@ -3,9 +3,11 @@
 import os.path
 import sys
 
+
 root = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 sys.path.insert(0, root)
 
 import tools.jit.gen_unboxing
 
+
 tools.jit.gen_unboxing.main(sys.argv[1:])

tools/setup_helpers/generate_code.py

@@ -8,6 +8,7 @@ from typing import Any, cast
 
 import yaml
 
+
 try:
     # use faster C loader if available
     from yaml import CSafeLoader as YamlLoader
@@ -30,6 +31,7 @@ def generate_code(
 ) -> None:
     from tools.autograd.gen_annotated_fn_args import gen_annotated
     from tools.autograd.gen_autograd import gen_autograd, gen_autograd_python
+
     from torchgen.selective_build.selector import SelectiveBuilder
 
     # Build ATen based Variable classes

tools/stats/export_test_times.py

@@ -1,6 +1,7 @@
 import sys
 from pathlib import Path
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 sys.path.append(str(REPO_ROOT))
 from tools.stats.import_test_stats import get_test_class_times, get_test_times

tools/stats/import_test_stats.py

@@ -10,6 +10,7 @@ from pathlib import Path
 from typing import Any, Callable, cast, Dict
 from urllib.request import urlopen
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 
 

tools/stats/upload_stats_lib.py

@@ -4,7 +4,6 @@ import gzip
 import io
 import json
 import os
-
 import time
 import zipfile
 from pathlib import Path

tools/test/heuristics/test_heuristics.py

@@ -9,8 +9,10 @@ from pathlib import Path
 from typing import Any
 from unittest import mock
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent.parent
 sys.path.append(str(REPO_ROOT))
+
 from tools.test.heuristics.test_interface import TestTD
 from tools.testing.target_determination.determinator import TestPrioritizations
 from tools.testing.target_determination.heuristics.filepath import (
@@ -25,6 +27,7 @@ from tools.testing.target_determination.heuristics.previously_failed_in_pr impor
 )
 from tools.testing.test_run import TestRun
 
+
 sys.path.remove(str(REPO_ROOT))
 
 HEURISTIC_CLASS = "tools.testing.target_determination.heuristics.historical_class_failure_correlation."

tools/test/heuristics/test_interface.py

@@ -5,11 +5,14 @@ import unittest
 from pathlib import Path
 from typing import Any
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent.parent
 sys.path.append(str(REPO_ROOT))
+
 import tools.testing.target_determination.heuristics.interface as interface
 from tools.testing.test_run import TestRun
 
+
 sys.path.remove(str(REPO_ROOT))
 
 

tools/test/heuristics/test_utils.py

@@ -8,9 +8,11 @@ from typing import Any
 
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent.parent
 sys.path.append(str(REPO_ROOT))
+
 import tools.testing.target_determination.heuristics.utils as utils
 from tools.testing.test_run import TestRun
 
+
 sys.path.remove(str(REPO_ROOT))
 
 

tools/test/test_gen_backend_stubs.py

@@ -9,9 +9,9 @@ import unittest
 import expecttest
 
 from torchgen.gen import _GLOBAL_PARSE_NATIVE_YAML_CACHE  # noqa: F401
-
 from torchgen.gen_backend_stubs import run
 
+
 path = os.path.dirname(os.path.realpath(__file__))
 gen_backend_stubs_path = os.path.join(path, "../torchgen/gen_backend_stubs.py")
 

tools/test/test_test_run.py

@@ -2,6 +2,7 @@ import sys
 import unittest
 from pathlib import Path
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 try:
     # using tools/ to optimize test run.

tools/test/test_test_selections.py

@@ -7,6 +7,7 @@ import unittest
 from collections import defaultdict
 from pathlib import Path
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 try:
     # using tools/ to optimize test run.

tools/test/test_upload_stats_lib.py

@@ -8,12 +8,14 @@ from pathlib import Path
 from typing import Any
 from unittest import mock
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 sys.path.insert(0, str(REPO_ROOT))
-from tools.stats.upload_metrics import add_global_metric, emit_metric
 
+from tools.stats.upload_metrics import add_global_metric, emit_metric
 from tools.stats.upload_stats_lib import BATCH_SIZE, upload_to_rockset
 
+
 sys.path.remove(str(REPO_ROOT))
 
 # default values

tools/testing/discover_tests.py

@@ -5,6 +5,7 @@ import os
 import sys
 from pathlib import Path
 
+
 CPP_TEST_PREFIX = "cpp"
 CPP_TEST_PATH = "build/bin"
 CPP_TESTS_DIR = os.path.abspath(os.getenv("CPP_TESTS_DIR", default=CPP_TEST_PATH))

tools/testing/do_target_determination_for_s3.py

@@ -18,7 +18,6 @@ from tools.stats.import_test_stats import (
     get_test_times,
 )
 from tools.stats.upload_metrics import emit_metric
-
 from tools.testing.discover_tests import TESTS
 from tools.testing.target_determination.determinator import (
     AggregatedHeuristics,
@@ -26,6 +25,7 @@ from tools.testing.target_determination.determinator import (
     TestPrioritizations,
 )
 
+
 sys.path.remove(str(REPO_ROOT))
 
 

tools/testing/modulefinder_determinator.py

@@ -7,6 +7,7 @@ import warnings
 from pathlib import Path
 from typing import Any
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 
 # These tests are slow enough that it's worth calculating whether the patch

tools/testing/target_determination/gen_artifact.py

@@ -5,6 +5,7 @@ import os
 from pathlib import Path
 from typing import Any
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent.parent
 
 

tools/testing/target_determination/heuristics/filepath.py

@@ -10,13 +10,13 @@ from tools.testing.target_determination.heuristics.interface import (
     HeuristicInterface,
     TestPrioritizations,
 )
-
 from tools.testing.target_determination.heuristics.utils import (
     normalize_ratings,
     query_changed_files,
 )
 from tools.testing.test_run import TestRun
 
+
 REPO_ROOT = Path(__file__).parent.parent.parent.parent
 
 keyword_synonyms: dict[str, list[str]] = {

tools/testing/target_determination/heuristics/previously_failed_in_pr.py

@@ -10,7 +10,6 @@ from tools.stats.import_test_stats import (
     TD_HEURISTIC_PREVIOUSLY_FAILED,
     TD_HEURISTIC_PREVIOUSLY_FAILED_ADDITIONAL,
 )
-
 from tools.testing.target_determination.heuristics.interface import (
     HeuristicInterface,
     TestPrioritizations,
@@ -20,6 +19,7 @@ from tools.testing.target_determination.heuristics.utils import (
 )
 from tools.testing.test_run import TestRun
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent.parent.parent
 
 

tools/testing/test_selections.py

@@ -9,6 +9,7 @@ from typing import Callable, Sequence
 from tools.stats.import_test_stats import get_disabled_tests, get_slow_tests
 from tools.testing.test_run import ShardedTest, TestRun
 
+
 REPO_ROOT = Path(__file__).resolve().parent.parent.parent
 
 IS_MEM_LEAK_CHECK = os.getenv("PYTORCH_TEST_CUDA_MEM_LEAK_CHECK", "0") == "1"

tools/vscode_settings.py

@@ -2,6 +2,7 @@
 
 from pathlib import Path
 
+
 try:
     # VS Code settings allow comments and trailing commas, which are not valid JSON.
     import json5 as json  # type: ignore[import]

torchgen/api/types/__init__.py

@@ -1,3 +1,5 @@
 from torchgen.api.types.types import *
 from torchgen.api.types.types_base import *
-from torchgen.api.types.signatures import *  # usort:skip
+
+
+from torchgen.api.types.signatures import *  # usort: skip

torchgen/autoheuristic/gen_data_pad_mm.py

@@ -1,18 +1,19 @@
 import argparse
 import random
 import time
-
 from typing import Any, Tuple
 
 from tqdm import tqdm  # type: ignore[import-untyped]
 
 import torch
 
+
 torch.set_default_device("cuda")
 
 from torch._inductor.fx_passes.pad_mm import get_alignment_size_dtype
 from torch._inductor.utils import fresh_inductor_cache
 
+
 # A100: 81920MiB
 # without a threshold we sometimes run out of memory
 threshold_memory = 85899345920 / 4

torchgen/autoheuristic/train.py

@@ -5,15 +5,14 @@ import sys
 import warnings
 
 import numpy as np
-
 import pandas as pd  # type: ignore[import-untyped]
-
 from scipy.stats import gmean  # type: ignore[import-untyped]
 from sklearn.model_selection import train_test_split  # type: ignore[import-untyped]
 from sklearn.tree import DecisionTreeRegressor  # type: ignore[import-untyped]
 
 from torch._inductor.autoheuristic.autoheuristic import deserialize_data
 
+
 # TODO (AlnisM): Fix these warnings
 warnings.filterwarnings(
     "ignore",

torchgen/executorch/api/custom_ops.py

@@ -6,8 +6,9 @@ from typing import Sequence, TYPE_CHECKING
 
 from torchgen import dest
 
+
 # disable import sorting to avoid circular dependency.
-from torchgen.api.types import DispatcherSignature  # usort:skip
+from torchgen.api.types import DispatcherSignature  # usort: skip
 from torchgen.context import method_with_native_function
 from torchgen.model import BaseTy, BaseType, DispatchKey, NativeFunction, Variant
 from torchgen.utils import concatMap, Target

torchgen/executorch/api/types/__init__.py

@@ -1,2 +1,4 @@
 from torchgen.executorch.api.types.types import *
-from torchgen.executorch.api.types.signatures import *  # usort:skip
+
+
+from torchgen.executorch.api.types.signatures import *  # usort: skip