Merge branch 'main' into fix-issue-127011

.github/CODEOWNERS

@@ -81,6 +81,17 @@ Programs/_bootstrap_python.c  @ericsnowcurrently
 Programs/python.c             @ericsnowcurrently
 Tools/build/generate_global_objects.py  @ericsnowcurrently
 
+# Initialization
+Doc/library/sys_path_init.rst @FFY00
+Doc/c-api/init_config.rst     @FFY00
+
+# getpath
+**/*getpath*                  @FFY00
+
+# site
+**/*site.py                   @FFY00
+Doc/library/site.rst          @FFY00
+
 # Exceptions
 Lib/test/test_except*.py      @iritkatriel
 Objects/exceptions.c          @iritkatriel
@@ -97,7 +108,7 @@ Modules/_hacl/**              @gpshead
 **/*logging*                  @vsajip
 
 # venv
-**/*venv*                     @vsajip
+**/*venv*                     @vsajip @FFY00
 
 # Launcher
 /PC/launcher.c                @vsajip

.github/actionlint.yaml

@@ -0,0 +1,10 @@
+self-hosted-runner:
+  labels: ["ubuntu-24.04-aarch64", "windows-aarch64"]
+
+config-variables: null
+
+paths:
+  .github/workflows/**/*.yml:
+     ignore:
+     - 1st argument of function call is not assignable
+     - SC2(015|038|086|091|097|098|129|155)

.github/workflows/build.yml

@@ -53,7 +53,7 @@ jobs:
     steps:
       - name: Install Git
         run: |
-          apt install git -yq
+          apt update && apt install git -yq
           git config --global --add safe.directory "$GITHUB_WORKSPACE"
       - uses: actions/checkout@v4
         with:
@@ -150,16 +150,28 @@ jobs:
     needs: check_source
     if: fromJSON(needs.check_source.outputs.run_tests)
     strategy:
+      fail-fast: false
       matrix:
+        os:
+          - windows-latest
         arch:
-        - Win32
-        - x64
-        - arm64
+          - x64
         free-threading:
-        - false
-        - true
+          - false
+          - true
+        include:
+          - os: windows-latest # FIXME(diegorusso): change to os: windows-aarch64
+            arch: arm64
+            free-threading: false
+          - os: windows-latest # FIXME(diegorusso): change to os: windows-aarch64
+            arch: arm64
+            free-threading: true
+          - os: windows-latest
+            arch: Win32
+            free-threading: false
     uses: ./.github/workflows/reusable-windows.yml
     with:
+      os: ${{ matrix.os }}
       arch: ${{ matrix.arch }}
       free-threading: ${{ matrix.free-threading }}
 

.github/workflows/reusable-ubuntu.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-24.04]
+        os: [ubuntu-24.04, ubuntu-24.04-aarch64]
     env:
       FORCE_COLOR: 1
       OPENSSL_VER: 3.0.15
@@ -82,11 +82,11 @@ jobs:
     - name: Build CPython out-of-tree
       if: ${{ inputs.free-threading }}
       working-directory: ${{ env.CPYTHON_BUILDDIR }}
-      run: make -j4
+      run: make -j
     - name: Build CPython out-of-tree (for compiler warning check)
       if: ${{ !inputs.free-threading}}
       working-directory: ${{ env.CPYTHON_BUILDDIR }}
-      run: set -o pipefail; make -j4 --output-sync 2>&1 | tee compiler_output_ubuntu.txt
+      run: set -o pipefail; make -j --output-sync 2>&1 | tee compiler_output_ubuntu.txt
     - name: Display build info
       working-directory: ${{ env.CPYTHON_BUILDDIR }}
       run: make pythoninfo

.github/workflows/reusable-windows.yml

@@ -3,6 +3,10 @@ name: Reusable Windows
 on:
   workflow_call:
     inputs:
+      os:
+        description: OS to run on
+        required: true
+        type: string
       arch:
         description: CPU architecture
         required: true
@@ -19,10 +23,8 @@ env:
 
 jobs:
   build:
-    name: >-
-      build${{ inputs.arch != 'arm64' && ' and test' || '' }}
-      (${{ inputs.arch }})
-    runs-on: windows-latest
+    name: 'build and test (${{ inputs.arch }})'
+    runs-on: ${{ inputs.os }}
     timeout-minutes: 60
     steps:
     - uses: actions/checkout@v4
@@ -31,17 +33,17 @@ jobs:
       run: echo "::add-matcher::.github/problem-matchers/msvc.json"
     - name: Build CPython
       run: >-
-        .\PCbuild\build.bat
+        .\\PCbuild\\build.bat
         -e -d -v
         -p ${{ inputs.arch }}
         ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}
-    - name: Display build info
+    - name: Display build info  # FIXME(diegorusso): remove the `if`
       if: inputs.arch != 'arm64'
-      run: .\python.bat -m test.pythoninfo
-    - name: Tests
+      run: .\\python.bat -m test.pythoninfo
+    - name: Tests  # FIXME(diegorusso): remove the `if`
       if: inputs.arch != 'arm64'
       run: >-
-        .\PCbuild\rt.bat
+        .\\PCbuild\\rt.bat
         -p ${{ inputs.arch }}
         -d -q --fast-ci
         ${{ fromJSON(inputs.free-threading) && '--disable-gil' || '' }}

.pre-commit-config.yaml

@@ -57,13 +57,9 @@ repos:
       - id: check-github-workflows
 
   - repo: https://github.com/rhysd/actionlint
-    rev: v1.7.3
+    rev: v1.7.4
     hooks:
       - id: actionlint
-        args: [
-          -ignore=1st argument of function call is not assignable,
-          -ignore=SC2(015|038|086|091|097|098|129|155),
-        ]
 
   - repo: https://github.com/sphinx-contrib/sphinx-lint
     rev: v1.0.0

Doc/Makefile

@@ -294,7 +294,7 @@ check: _ensure-pre-commit
 
 .PHONY: serve
 serve:
-	@echo "The serve target was removed, use htmlview instead (see bpo-36329)"
+	@echo "The serve target was removed, use htmllive instead (see gh-80510)"
 
 # Targets for daily automated doc build
 # By default, Sphinx only rebuilds pages where the page content has changed.

Doc/c-api/init.rst

@@ -1379,6 +1379,9 @@ All of the following functions must be called after :c:func:`Py_Initialize`.
       This function now calls the :c:member:`PyThreadState.on_delete` callback.
       Previously, that happened in :c:func:`PyThreadState_Delete`.
 
+   .. versionchanged:: 3.13
+      The :c:member:`PyThreadState.on_delete` callback was removed.
+
 
 .. c:function:: void PyThreadState_Delete(PyThreadState *tstate)
 
@@ -1735,7 +1738,11 @@ function. You can create and destroy them using the following functions:
           .check_multi_interp_extensions = 1,
           .gil = PyInterpreterConfig_OWN_GIL,
       };
-      PyThreadState *tstate = Py_NewInterpreterFromConfig(&config);
+      PyThreadState *tstate = NULL;
+      PyStatus status = Py_NewInterpreterFromConfig(&tstate, &config);
+      if (PyStatus_Exception(status)) {
+          Py_ExitStatusException(status);
+      }
 
    Note that the config is used only briefly and does not get modified.
    During initialization the config's values are converted into various
@@ -2463,7 +2470,7 @@ code triggered by the finalizer blocks and calls :c:func:`PyEval_SaveThread`.
 
       {
           PyCriticalSection2 _py_cs2;
-          PyCriticalSection_Begin2(&_py_cs2, (PyObject*)(a), (PyObject*)(b))
+          PyCriticalSection2_Begin(&_py_cs2, (PyObject*)(a), (PyObject*)(b))
 
    In the default build, this macro expands to ``{``.
 
@@ -2475,7 +2482,7 @@ code triggered by the finalizer blocks and calls :c:func:`PyEval_SaveThread`.
 
    In the free-threaded build, this macro expands to::
 
-          PyCriticalSection_End2(&_py_cs2);
+          PyCriticalSection2_End(&_py_cs2);
       }
 
    In the default build, this macro expands to ``}``.

Doc/c-api/long.rst

@@ -590,7 +590,7 @@ distinguished from a number.  Use :c:func:`PyErr_Occurred` to disambiguate.
    return ``1`` when it's positive and ``0`` otherwise.  Else set an
    exception and return ``-1``.
 
-   .. versionadded:: next
+   .. versionadded:: 3.14
 
 
 .. c:function:: int PyLong_IsNegative(PyObject *obj)
@@ -601,7 +601,7 @@ distinguished from a number.  Use :c:func:`PyErr_Occurred` to disambiguate.
    return ``1`` when it's negative and ``0`` otherwise.  Else set an
    exception and return ``-1``.
 
-   .. versionadded:: next
+   .. versionadded:: 3.14
 
 
 .. c:function:: int PyLong_IsZero(PyObject *obj)
@@ -612,7 +612,7 @@ distinguished from a number.  Use :c:func:`PyErr_Occurred` to disambiguate.
    return ``1`` when it's zero and ``0`` otherwise.  Else set an
    exception and return ``-1``.
 
-   .. versionadded:: next
+   .. versionadded:: 3.14
 
 
 .. c:function:: PyObject* PyLong_GetInfo(void)

Doc/c-api/object.rst

@@ -597,5 +597,5 @@ Object Protocol
    This function is intended to be used soon after *obj* is created,
    by the code that creates it.
 
-   .. versionadded:: next
+   .. versionadded:: 3.14
 

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

@@ -145,10 +145,6 @@ although there is currently no date scheduled for their removal.
   * ``splitvalue()``
   * ``to_bytes()``
 
-* :mod:`urllib.request`: :class:`~urllib.request.URLopener` and
-  :class:`~urllib.request.FancyURLopener` style of invoking requests is
-  deprecated. Use newer :func:`~urllib.request.urlopen` functions and methods.
-
 * :mod:`wsgiref`: ``SimpleHandler.stdout.write()`` should not do partial
   writes.
 

Doc/library/argparse.rst

@@ -192,6 +192,12 @@ arguments it contains. The default message can be overridden with the
 The ``%(prog)s`` format specifier is available to fill in the program name in
 your usage messages.
 
+When a custom usage message is specified for the main parser, you may also want to
+consider passing  the ``prog`` argument to :meth:`~ArgumentParser.add_subparsers`
+or the ``prog`` and the ``usage`` arguments to
+:meth:`~_SubParsersAction.add_parser`, to ensure consistent command prefixes and
+usage information across subparsers.
+
 
 .. _description:
 
@@ -583,6 +589,14 @@ are strings::
    >>> parser.parse_args(['--action', 'sumn', 1, 2, 3])
    tester.py: error: argument --action: invalid choice: 'sumn', maybe you meant 'sum'? (choose from 'sum', 'max')
 
+If you're writing code that needs to be compatible with older Python versions
+and want to opportunistically use ``suggest_on_error`` when it's available, you
+can set it as an attribute after initializing the parser instead of using the
+keyword argument::
+
+   >>> parser = argparse.ArgumentParser(description='Process some integers.')
+   >>> parser.suggest_on_error = True
+
 .. versionadded:: 3.14
 
 
@@ -801,7 +815,8 @@ Only actions that consume command-line arguments (e.g. ``'store'``,
 
 The recommended way to create a custom action is to extend :class:`Action`,
 overriding the :meth:`!__call__` method and optionally the :meth:`!__init__` and
-:meth:`!format_usage` methods.
+:meth:`!format_usage` methods. You can also register custom actions using the
+:meth:`~ArgumentParser.register` method and reference them by their registered name.
 
 An example of a custom action::
 
@@ -1020,10 +1035,11 @@ necessary type-checking and type conversions to be performed.
 If the type_ keyword is used with the default_ keyword, the type converter
 is only applied if the default is a string.
 
-The argument to ``type`` can be any callable that accepts a single string.
+The argument to ``type`` can be a callable that accepts a single string or
+the name of a registered type (see :meth:`~ArgumentParser.register`)
 If the function raises :exc:`ArgumentTypeError`, :exc:`TypeError`, or
 :exc:`ValueError`, the exception is caught and a nicely formatted error
-message is displayed.  No other exception types are handled.
+message is displayed. Other exception types are not handled.
 
 Common built-in types and functions can be used as type converters:
 
@@ -1808,6 +1824,10 @@ Sub-commands
    .. versionchanged:: 3.7
       New *required* keyword-only parameter.
 
+   .. versionchanged:: 3.14
+      Subparser's *prog* is no longer affected by a custom usage message in
+      the main parser.
+
 
 FileType objects
 ^^^^^^^^^^^^^^^^
@@ -1906,11 +1926,10 @@ Argument groups
    Note that any arguments not in your user-defined groups will end up back
    in the usual "positional arguments" and "optional arguments" sections.
 
-   .. versionchanged:: 3.11
-    Calling :meth:`add_argument_group` on an argument group is deprecated.
-    This feature was never supported and does not always work correctly.
-    The function exists on the API by accident through inheritance and
-    will be removed in the future.
+   .. deprecated-removed:: 3.11 3.14
+      Calling :meth:`add_argument_group` on an argument group now raises an
+      exception. This nesting was never supported, often failed to work
+      correctly, and was unintentionally exposed through inheritance.
 
    .. deprecated:: 3.14
       Passing prefix_chars_ to :meth:`add_argument_group`
@@ -1973,11 +1992,11 @@ Mutual exclusion
        --foo FOO   foo help
        --bar BAR   bar help
 
-   .. versionchanged:: 3.11
-    Calling :meth:`add_argument_group` or :meth:`add_mutually_exclusive_group`
-    on a mutually exclusive group is deprecated. These features were never
-    supported and do not always work correctly. The functions exist on the
-    API by accident through inheritance and will be removed in the future.
+   .. deprecated-removed:: 3.11 3.14
+      Calling :meth:`add_argument_group` or :meth:`add_mutually_exclusive_group`
+      on a mutually exclusive group now raises an exception. This nesting was
+      never supported, often failed to work correctly, and was unintentionally
+      exposed through inheritance.
 
 
 Parser defaults
@@ -2163,6 +2182,34 @@ Intermixed parsing
    .. versionadded:: 3.7
 
 
+Registering custom types or actions
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. method:: ArgumentParser.register(registry_name, value, object)
+
+   Sometimes it's desirable to use a custom string in error messages to provide
+   more user-friendly output. In these cases, :meth:`!register` can be used to
+   register custom actions or types with a parser and allow you to reference the
+   type by their registered name instead of their callable name.
+
+   The :meth:`!register` method accepts three arguments - a *registry_name*,
+   specifying the internal registry where the object will be stored (e.g.,
+   ``action``, ``type``), *value*, which is the key under which the object will
+   be registered, and object, the callable to be registered.
+
+   The following example shows how to register a custom type with a parser::
+
+      >>> import argparse
+      >>> parser = argparse.ArgumentParser()
+      >>> parser.register('type', 'hexadecimal integer', lambda s: int(s, 16))
+      >>> parser.add_argument('--foo', type='hexadecimal integer')
+      _StoreAction(option_strings=['--foo'], dest='foo', nargs=None, const=None, default=None, type='hexadecimal integer', choices=None, required=False, help=None, metavar=None, deprecated=False)
+      >>> parser.parse_args(['--foo', '0xFA'])
+      Namespace(foo=250)
+      >>> parser.parse_args(['--foo', '1.2'])
+      usage: PROG [-h] [--foo FOO]
+      PROG: error: argument --foo: invalid 'hexadecimal integer' value: '1.2'
+
 Exceptions
 ----------