Tools changes

Tools/build/.ruff.toml

@@ -0,0 +1,41 @@
+extend = "../../.ruff.toml"  # Inherit the project-wide settings
+
+[per-file-target-version]
+"deepfreeze.py" = "py311"  # requires `code.co_exceptiontable`
+"stable_abi.py" = "py311"  # requires 'tomllib'
+
+[format]
+preview = true
+docstring-code-format = true
+
+[lint]
+select = [
+    "C4",      # flake8-comprehensions
+    "E",       # pycodestyle
+    "F",       # pyflakes
+    "I",       # isort
+    "ISC",     # flake8-implicit-str-concat
+    "LOG",     # flake8-logging
+    "PGH",     # pygrep-hooks
+    "PT",      # flake8-pytest-style
+    "PYI",     # flake8-pyi
+    "RUF100",  # Ban unused `# noqa` comments
+    "UP",      # pyupgrade
+    "W",       # pycodestyle
+    "YTT",     # flake8-2020
+]
+ignore = [
+    "E501",    # Line too long
+    "F541",    # f-string without any placeholders
+    "PYI024",  # Use `typing.NamedTuple` instead of `collections.namedtuple`
+    "PYI025",  # Use `from collections.abc import Set as AbstractSet`
+    "UP038",   # Use `X | Y` in `isinstance` call instead of `(X, Y)`
+]
+
+[lint.per-file-ignores]
+"{check_extension_modules,freeze_modules}.py" = [
+    "UP031",  # Use format specifiers instead of percent format
+]
+"generate_{re_casefix,sre_constants,token}.py" = [
+    "UP031",  # Use format specifiers instead of percent format
+]

Tools/build/.warningignore_macos

@@ -0,0 +1,9 @@
+# Files listed will be ignored by the compiler warning checker
+# for the macOS/build and test job.
+# Keep lines sorted lexicographically to help avoid merge conflicts.
+# Format example:
+# /path/to/file (number of warnings in file)
+Modules/expat/siphash.h 7
+Modules/expat/xmlparse.c 13
+Modules/expat/xmltok.c 3
+Modules/expat/xmltok_impl.c 26

Tools/build/.warningignore_ubuntu

@@ -0,0 +1,5 @@
+# Files listed will be ignored by the compiler warning checker
+# for the Ubuntu/build and test job.
+# Keep lines sorted lexicographically to help avoid merge conflicts.
+# Format example:
+# /path/to/file (number of warnings in file)

Tools/build/check_extension_modules.py

@@ -30,10 +30,15 @@
 import sys
 import sysconfig
 import warnings
-
 from collections.abc import Iterable
-from importlib._bootstrap import _load as bootstrap_load  # type: ignore[attr-defined]
-from importlib.machinery import BuiltinImporter, ExtensionFileLoader, ModuleSpec
+from importlib._bootstrap import (  # type: ignore[attr-defined]
+    _load as bootstrap_load,
+)
+from importlib.machinery import (
+    BuiltinImporter,
+    ExtensionFileLoader,
+    ModuleSpec,
+)
 from importlib.util import spec_from_file_location, spec_from_loader
 from typing import NamedTuple
 
@@ -201,7 +206,7 @@ def print_three_column(modinfos: list[ModuleInfo]) -> None:
             # guarantee zip() doesn't drop anything
             while len(names) % 3:
                 names.append("")
-            for l, m, r in zip(names[::3], names[1::3], names[2::3]):
+            for l, m, r in zip(names[::3], names[1::3], names[2::3]):  # noqa: E741
                 print("%-*s   %-*s   %-*s" % (longest, l, longest, m, longest, r))
 
         if verbose and self.builtin_ok:
@@ -433,7 +438,7 @@ def check_module_import(self, modinfo: ModuleInfo) -> None:
         except ImportError as e:
             logger.error("%s failed to import: %s", modinfo.name, e)
             raise
-        except Exception as e:
+        except Exception:
             if not hasattr(_imp, 'create_dynamic'):
                 logger.warning("Dynamic extension '%s' ignored", modinfo.name)
                 return