Merge branch 'main' into fix-ub

Author: ashm-dev

.github/workflows/tail-call.yml

@@ -81,22 +81,23 @@ jobs:
 
       - name: Native Windows MSVC (release)
         if: runner.os == 'Windows' && matrix.architecture != 'ARM64'
-        shell: cmd
+        shell: pwsh
         run: |
           choco install visualstudio2026buildtools --no-progress -y --force --params "--add Microsoft.VisualStudio.Component.VC.Tools.x86.x64  --locale en-US --passive"
           $env:PATH = "C:\Program Files (x86)\Microsoft Visual Studio\18\BuildTools\MSBuild\Current\bin;$env:PATH"
-          ./PCbuild/build.bat --tail-call-interp -c Release -p ${{ matrix.architecture }} "/p:PlatformToolset=v145"
+          $env:PlatformToolset = "v145"
+          ./PCbuild/build.bat --tail-call-interp -c Release -p ${{ matrix.architecture }}
           ./PCbuild/rt.bat -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
 
       # No tests (yet):
       - name: Emulated Windows Clang (release)
         if: runner.os == 'Windows' && matrix.architecture == 'ARM64'
-        shell: cmd
+        shell: pwsh
         run: |
           choco install llvm --allow-downgrade --no-progress --version ${{ matrix.llvm }}.1.0
-          set PlatformToolset=clangcl
-          set LLVMToolsVersion=${{ matrix.llvm }}.1.0
-          set LLVMInstallDir=C:\Program Files\LLVM
+          $env:PlatformToolset = "clangcl"
+          $env:LLVMToolsVersion = "${{ matrix.llvm }}.1.0"
+          $env:LLVMInstallDir = "C:\Program Files\LLVM"
           ./PCbuild/build.bat --tail-call-interp -p ${{ matrix.architecture }}
 
       - name: Native macOS (release)

.pre-commit-config.yaml

@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.13.2
+    rev: v0.14.10
     hooks:
       - id: ruff-check
         name: Run Ruff (lint) on Apple/
@@ -52,7 +52,7 @@ repos:
         files: ^Tools/wasm/
 
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 25.9.0
+    rev: 25.12.0
     hooks:
       - id: black
         name: Run Black on Tools/jit/
@@ -83,24 +83,24 @@ repos:
         files: '^\.github/CODEOWNERS|\.(gram)$'
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.34.0
+    rev: 0.36.0
     hooks:
       - id: check-dependabot
       - id: check-github-workflows
       - id: check-readthedocs
 
   - repo: https://github.com/rhysd/actionlint
-    rev: v1.7.7
+    rev: v1.7.9
     hooks:
       - id: actionlint
 
   - repo: https://github.com/woodruffw/zizmor-pre-commit
-    rev: v1.14.1
+    rev: v1.19.0
     hooks:
       - id: zizmor
 
   - repo: https://github.com/sphinx-contrib/sphinx-lint
-    rev: v1.0.0
+    rev: v1.0.2
     hooks:
       - id: sphinx-lint
         args: [--enable=default-role]

Doc/deprecations/pending-removal-in-3.15.rst

@@ -33,16 +33,6 @@ Pending removal in Python 3.15
 
   * ``load_module()`` method: use ``exec_module()`` instead.
 
-* :class:`locale`:
-
-  * The :func:`~locale.getdefaultlocale` function
-    has been deprecated since Python 3.11.
-    Its removal was originally planned for Python 3.13 (:gh:`90817`),
-    but has been postponed to Python 3.15.
-    Use :func:`~locale.getlocale`, :func:`~locale.setlocale`,
-    and :func:`~locale.getencoding` instead.
-    (Contributed by Hugo van Kemenade in :gh:`111187`.)
-
 * :mod:`pathlib`:
 
   * :meth:`!.PurePath.is_reserved`

Doc/library/locale.rst

@@ -370,8 +370,6 @@ The :mod:`locale` module defines the following exception and functions:
    determined.
    The "C" locale is represented as ``(None, None)``.
 
-   .. deprecated-removed:: 3.11 3.15
-
 
 .. function:: getlocale(category=LC_CTYPE)
 

Doc/tools/check-warnings.py

@@ -311,8 +311,11 @@ def main(argv: list[str] | None = None) -> int:
     if not Path("Doc").exists() or not Path("Doc").is_dir():
         raise RuntimeError(wrong_directory_msg)
 
-    with Path("Doc/sphinx-warnings.txt").open(encoding="UTF-8") as f:
-        warnings = f.read().splitlines()
+    warnings = (
+        Path("Doc/sphinx-warnings.txt")
+        .read_text(encoding="UTF-8")
+        .splitlines()
+    )
 
     cwd = str(Path.cwd()) + os.path.sep
     files_with_nits = {

Doc/whatsnew/3.15.rst

@@ -562,6 +562,9 @@ locale
   but included in the language code.
   (Contributed by Serhiy Storchaka in :gh:`137729`.)
 
+* Undeprecate the :func:`locale.getdefaultlocale` function.
+  (Contributed by Victor Stinner in :gh:`130796`.)
+
 
 math
 ----

Lib/locale.py

@@ -559,12 +559,6 @@ def getdefaultlocale(envvars=('LC_ALL', 'LC_CTYPE', 'LANG', 'LANGUAGE')):
 
     """
 
-    import warnings
-    warnings._deprecated(
-        "locale.getdefaultlocale",
-        "{name!r} is deprecated and slated for removal in Python {remove}. "
-        "Use setlocale(), getencoding() and getlocale() instead.",
-        remove=(3, 15))
     return _getdefaultlocale(envvars)
 
 

Lib/test/test_locale.py

@@ -1,7 +1,6 @@
 from decimal import Decimal
 from test import support
 from test.support import cpython_only, verbose, is_android, linked_to_musl, os_helper
-from test.support.warnings_helper import check_warnings
 from test.support.import_helper import ensure_lazy_imports, import_fresh_module
 from unittest import mock
 import unittest
@@ -654,8 +653,7 @@ def test_defaults_UTF8(self):
                 env.unset('LC_ALL', 'LC_CTYPE', 'LANG', 'LANGUAGE')
                 env.set('LC_CTYPE', 'UTF-8')
 
-                with check_warnings(('', DeprecationWarning)):
-                    self.assertEqual(locale.getdefaultlocale(), (None, 'UTF-8'))
+                self.assertEqual(locale.getdefaultlocale(), (None, 'UTF-8'))
         finally:
             if orig_getlocale is not None:
                 _locale._getdefaultlocale = orig_getlocale

Misc/NEWS.d/next/Library/2025-12-23-11-43-05.gh-issue-130796.TkzUGx.rst

@@ -0,0 +1,2 @@
+Undeprecate the :func:`locale.getdefaultlocale` function.
+Patch by Victor Stinner.