Merge remote-tracking branch 'upstream/main' into jit-stencil-initial…

…izers

.github/CODEOWNERS

@@ -280,3 +280,5 @@ Lib/test/test_configparser.py @jaraco
 
 # Doc sections
 Doc/reference/                @willingc
+
+**/*weakref*                  @kumaraditya303

.github/ISSUE_TEMPLATE/bug.yml

@@ -34,12 +34,12 @@ body:
       label: "CPython versions tested on:"
       multiple: true
       options:
-        - "3.8"
         - "3.9"
         - "3.10"
         - "3.11"
         - "3.12"
         - "3.13"
+        - "3.14"
         - "CPython main branch"
     validations:
       required: true

.github/ISSUE_TEMPLATE/crash.yml

@@ -27,12 +27,12 @@ body:
       label: "CPython versions tested on:"
       multiple: true
       options:
-        - "3.8"
         - "3.9"
         - "3.10"
         - "3.11"
         - "3.12"
         - "3.13"
+        - "3.14"
         - "CPython main branch"
     validations:
       required: true

.github/workflows/mypy.yml

@@ -53,7 +53,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.13"
           cache: pip
           cache-dependency-path: Tools/requirements-dev.txt
       - run: pip install -r Tools/requirements-dev.txt

.github/workflows/reusable-change-detection.yml

@@ -1,6 +1,4 @@
----
-
-name: Change detection
+name: Reusable change detection
 
 on:  # yamllint disable-line rule:truthy
   workflow_call:

.github/workflows/reusable-docs.yml

@@ -1,4 +1,4 @@
-name: Docs
+name: Reusable Docs
 
 on:
   workflow_call:
@@ -95,7 +95,7 @@ jobs:
   # Run "doctest" on HEAD as new syntax doesn't exist in the latest stable release
   doctest:
     name: 'Doctest'
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     steps:
     - uses: actions/checkout@v4

.github/workflows/reusable-macos.yml

@@ -1,3 +1,5 @@
+name: Reusable macOS
+
 on:
   workflow_call:
     inputs:

.github/workflows/reusable-tsan.yml

@@ -1,3 +1,5 @@
+name: Reusable Thread Sanitizer
+
 on:
   workflow_call:
     inputs:

.github/workflows/reusable-ubuntu.yml

@@ -1,3 +1,5 @@
+name: Reusable Ubuntu
+
 on:
   workflow_call:
     inputs:

.github/workflows/reusable-wasi.yml

@@ -1,3 +1,5 @@
+name: Reusable WASI
+
 on:
   workflow_call:
     inputs:

.github/workflows/reusable-windows-msi.yml

@@ -1,4 +1,4 @@
-name: TestsMSI
+name: Reusable Windows MSI
 
 on:
   workflow_call:

.github/workflows/reusable-windows.yml

@@ -1,3 +1,5 @@
+name: Reusable Windows
+
 on:
   workflow_call:
     inputs:

Doc/c-api/contextvars.rst

@@ -122,18 +122,18 @@ Context object management functions:
 .. c:type:: PyContextEvent
 
    Enumeration of possible context object watcher events:
-   - ``Py_CONTEXT_EVENT_ENTER``
-   - ``Py_CONTEXT_EVENT_EXIT``
+
+   - ``Py_CONTEXT_SWITCHED``: The :term:`current context` has switched to a
+     different context.  The object passed to the watch callback is the
+     now-current :class:`contextvars.Context` object, or None if no context is
+     current.
 
    .. versionadded:: 3.14
 
-.. c:type:: int (*PyContext_WatchCallback)(PyContextEvent event, PyContext* ctx)
+.. c:type:: int (*PyContext_WatchCallback)(PyContextEvent event, PyObject *obj)
 
-   Type of a context object watcher callback function.
-   If *event* is ``Py_CONTEXT_EVENT_ENTER``, then the callback is invoked
-   after *ctx* has been set as the current context for the current thread.
-   Otherwise, the callback is invoked before the deactivation of *ctx* as the current context
-   and the restoration of the previous contex object for the current thread.
+   Context object watcher callback function.  The object passed to the callback
+   is event-specific; see :c:type:`PyContextEvent` for details.
 
    If the callback returns with an exception set, it must return ``-1``; this
    exception will be printed as an unraisable exception using

Doc/c-api/init.rst

@@ -1195,7 +1195,7 @@ code, or when embedding the Python interpreter:
       created by Python.  Refer to
       :ref:`cautions-regarding-runtime-finalization` for more details.
 
-   .. versionchanged:: next
+   .. versionchanged:: 3.14
       Hangs the current thread, rather than terminating it, if called while the
       interpreter is finalizing.
 
@@ -1257,7 +1257,7 @@ with sub-interpreters:
       created by Python.  Refer to
       :ref:`cautions-regarding-runtime-finalization` for more details.
 
-   .. versionchanged:: next
+   .. versionchanged:: 3.14
       Hangs the current thread, rather than terminating it, if called while the
       interpreter is finalizing.
 
@@ -1547,7 +1547,7 @@ All of the following functions must be called after :c:func:`Py_Initialize`.
       :c:func:`Py_END_ALLOW_THREADS`, and :c:func:`PyGILState_Ensure`,
       and terminate the current thread if called while the interpreter is finalizing.
 
-   .. versionchanged:: next
+   .. versionchanged:: 3.14
       Hangs the current thread, rather than terminating it, if called while the
       interpreter is finalizing.
 

Doc/c-api/init_config.rst

@@ -1621,6 +1621,8 @@ Create Config
 
    Free memory of the initialization configuration *config*.
 
+   If *config* is ``NULL``, no operation is performed.
+
 
 Error Handling
 --------------
@@ -1823,14 +1825,18 @@ return ``-1`` on error:
         PyInitConfig_Free(config);
         return 0;
 
-        // Display the error message
-        const char *err_msg;
     error:
-        (void)PyInitConfig_GetError(config, &err_msg);
-        printf("PYTHON INIT ERROR: %s\n", err_msg);
-        PyInitConfig_Free(config);
+        {
+            // Display the error message
+            // This uncommon braces style is used, because you cannot make
+            // goto targets point to variable declarations.
+            const char *err_msg;
+            (void)PyInitConfig_GetError(config, &err_msg);
+            printf("PYTHON INIT ERROR: %s\n", err_msg);
+            PyInitConfig_Free(config);
 
-        return -1;
+            return -1;
+        }
     }
 
 

Doc/c-api/long.rst

@@ -579,7 +579,7 @@ distinguished from a number.  Use :c:func:`PyErr_Occurred` to disambiguate.
    On failure, return -1 with an exception set.  This function always succeeds
    if *obj* is a :c:type:`PyLongObject` or its subtype.
 
-   .. versionadded:: next
+   .. versionadded:: 3.14
 
 
 .. c:function:: PyObject* PyLong_GetInfo(void)
@@ -608,10 +608,15 @@ distinguished from a number.  Use :c:func:`PyErr_Occurred` to disambiguate.
    Exactly what values are considered compact is an implementation detail
    and is subject to change.
 
+   .. versionadded:: 3.12
+
+
 .. c:function:: Py_ssize_t PyUnstable_Long_CompactValue(const PyLongObject* op)
 
    If *op* is compact, as determined by :c:func:`PyUnstable_Long_IsCompact`,
    return its value.
 
    Otherwise, the return value is undefined.
 
+   .. versionadded:: 3.12
+

Doc/c-api/unicode.rst

@@ -1575,7 +1575,7 @@ PyUnicodeWriter
 The :c:type:`PyUnicodeWriter` API can be used to create a Python :class:`str`
 object.
 
-.. versionadded:: next
+.. versionadded:: 3.14
 
 .. c:type:: PyUnicodeWriter
 
@@ -1600,6 +1600,8 @@ object.
 
    Discard the internal Unicode buffer and destroy the writer instance.
 
+   If *writer* is ``NULL``, no operation is performed.
+
 .. c:function:: int PyUnicodeWriter_WriteChar(PyUnicodeWriter *writer, Py_UCS4 ch)
 
    Write the single Unicode character *ch* into *writer*.

Doc/conf.py

@@ -11,6 +11,8 @@
 import sys
 import time
 
+import sphinx
+
 sys.path.append(os.path.abspath('tools/extensions'))
 sys.path.append(os.path.abspath('includes'))
 
@@ -21,6 +23,7 @@
 
 extensions = [
     'audit_events',
+    'availability',
     'c_annotations',
     'glossary_search',
     'lexers',
@@ -61,7 +64,10 @@
 
 # General substitutions.
 project = 'Python'
-copyright = f"2001-{time.strftime('%Y')}, Python Software Foundation"
+if sphinx.version_info[:2] >= (8, 1):
+    copyright = "2001-%Y, Python Software Foundation"
+else:
+    copyright = f"2001-{time.strftime('%Y')}, Python Software Foundation"
 
 # We look for the Include/patchlevel.h file in the current Python source tree
 # and replace the values accordingly.
@@ -360,10 +366,14 @@
 }
 
 # This 'Last updated on:' timestamp is inserted at the bottom of every page.
-html_time = int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
-html_last_updated_fmt = time.strftime(
-    '%b %d, %Y (%H:%M UTC)', time.gmtime(html_time)
-)
+html_last_updated_fmt = '%b %d, %Y (%H:%M UTC)'
+if sphinx.version_info[:2] >= (8, 1):
+    html_last_updated_use_utc = True
+else:
+    html_time = int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
+    html_last_updated_fmt = time.strftime(
+        html_last_updated_fmt, time.gmtime(html_time)
+    )
 
 # Path to find HTML templates.
 templates_path = ['tools/templates']
@@ -595,13 +605,21 @@
 # mapping unique short aliases to a base URL and a prefix.
 # https://www.sphinx-doc.org/en/master/usage/extensions/extlinks.html
 extlinks = {
-    "cve": ("https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-%s", "CVE-%s"),
-    "cwe": ("https://cwe.mitre.org/data/definitions/%s.html", "CWE-%s"),
     "pypi": ("https://pypi.org/project/%s/", "%s"),
     "source": (SOURCE_URI, "%s"),
 }
 extlinks_detect_hardcoded_links = True
 
+if sphinx.version_info[:2] < (8, 1):
+    # Sphinx 8.1 has in-built CVE and CWE roles.
+    extlinks |= {
+        "cve": (
+            "https://www.cve.org/CVERecord?id=CVE-%s",
+            "CVE-%s",
+        ),
+        "cwe": ("https://cwe.mitre.org/data/definitions/%s.html", "CWE-%s"),
+    }
+
 # Options for c_annotations
 # -------------------------
 

Doc/deprecations/c-api-pending-removal-in-3.14.rst

@@ -1,4 +1,4 @@
-Pending Removal in Python 3.14
+Pending removal in Python 3.14
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 * The ``ma_version_tag`` field in :c:type:`PyDictObject` for extension modules

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

@@ -1,4 +1,4 @@
-Pending Removal in Python 3.15
+Pending removal in Python 3.15
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 * The bundled copy of ``libmpdecimal``.

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

@@ -1,4 +1,4 @@
-Pending Removal in Future Versions
+Pending removal in future versions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 The following APIs are deprecated and will be removed,

Doc/deprecations/index.rst

@@ -7,7 +7,7 @@ Deprecations
 
 .. include:: pending-removal-in-future.rst
 
-C API Deprecations
+C API deprecations
 ------------------
 
 .. include:: c-api-pending-removal-in-3.15.rst

Doc/deprecations/pending-removal-in-3.13.rst

@@ -1,4 +1,4 @@
-Pending Removal in Python 3.13
+Pending removal in Python 3.13
 ------------------------------
 
 Modules (see :pep:`594`):

Doc/deprecations/pending-removal-in-3.14.rst

@@ -1,4 +1,4 @@
-Pending Removal in Python 3.14
+Pending removal in Python 3.14
 ------------------------------
 
 * The import system:

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

@@ -1,4 +1,4 @@
-Pending Removal in Python 3.15
+Pending removal in Python 3.15
 ------------------------------
 
 * The import system:
@@ -63,7 +63,7 @@ Pending Removal in Python 3.15
 
   * The undocumented keyword argument syntax for creating
     :class:`~typing.NamedTuple` classes
-    (e.g. ``Point = NamedTuple("Point", x=int, y=int)``)
+    (for example, ``Point = NamedTuple("Point", x=int, y=int)``)
     has been deprecated since Python 3.13.
     Use the class-based syntax or the functional syntax instead.