Import CPython 3.14.7+ stable branch (2026-08-30)

Summary:
Imported python/cpython `3.14.7+` from upstream rev [`686b543`](https://www.github.com/python/cpython/commit/686b543e1ea13f0161dc46da59770be283c3b54c) (committed 2026-08-30 22:10:27+00:00).

# Commit Info

- Base: (`3.14.7+`) - [`aa24c20`](https://www.github.com/python/cpython/commit/aa24c20526472822c733eef4ac0f9464f83f9861) (commit date: 2026-08-30 02:38:07+00:00)
- Imported: (`3.14.7+`) - [`686b543`](https://www.github.com/python/cpython/commit/686b543e1ea13f0161dc46da59770be283c3b54c) (commit date: 2026-08-30 22:10:27+00:00)

# Noteworthy file changes

- Low-signal files (3 added) (NEWS.d, docs, .github)

Complete list of added/removed files: https://www.internalfb.com/intern/everpaste/?color=0&handle=GE0pPhlVTj8yPiUIAP0nbJcWvupjbr0LAAAz

Reviewed By: itamaro

Differential Revision: D118118051

fbshipit-source-id: ec482fd1a40cad641f3f2b49d969e574d3bc97eb

Author: generatedunixname1734921407115435

Doc/library/mimetypes.rst

@@ -203,8 +203,8 @@ than one MIME-type database; it provides an interface similar to the one of the
 .. class:: MimeTypes(filenames=(), strict=True)
 
    This class represents a MIME-types database.  By default, it provides access to
-   the same database as the rest of this module. The initial database is a copy of
-   that provided by the module, and may be extended by loading additional
+   the same database as the rest of this module. The initial database is created from
+   Python's built-in MIME type tables. It may be extended by loading additional
    :file:`mime.types`\ -style files into the database using the :meth:`read` or
    :meth:`readfp` methods.  The mapping dictionaries may also be cleared before
    loading additional data if the default data is not desired.
@@ -218,30 +218,32 @@ than one MIME-type database; it provides an interface similar to the one of the
       Dictionary mapping suffixes to suffixes.  This is used to allow recognition of
       encoded files for which the encoding and the type are indicated by the same
       extension.  For example, the :file:`.tgz` extension is mapped to :file:`.tar.gz`
-      to allow the encoding and type to be recognized separately.  This is initially a
-      copy of the global :data:`suffix_map` defined in the module.
+      to allow the encoding and type to be recognized separately.
+      This is initialized with some predefined values.
 
 
    .. attribute:: MimeTypes.encodings_map
 
-      Dictionary mapping filename extensions to encoding types.  This is initially a
-      copy of the global :data:`encodings_map` defined in the module.
+      Dictionary mapping filename extensions to encoding types.
+      This is initialized with some predefined values.
 
 
    .. attribute:: MimeTypes.types_map
 
       Tuple containing two dictionaries, mapping filename extensions to MIME types:
       the first dictionary is for the non-standards types and the second one is for
-      the standard types. They are initialized by :data:`common_types` and
-      :data:`types_map`.
+      the standard types.
+      They are initialized with some predefined values and MIME type
+      information loaded from files specified by the *filenames* argument.
 
 
    .. attribute:: MimeTypes.types_map_inv
 
       Tuple containing two dictionaries, mapping MIME types to a list of filename
       extensions: the first dictionary is for the non-standards types and the
-      second one is for the standard types. They are initialized by
-      :data:`common_types` and :data:`types_map`.
+      second one is for the standard types.
+      They are initialized with some predefined values and MIME type
+      information loaded from files specified by the *filenames* argument.
 
 
    .. method:: MimeTypes.guess_extension(type, strict=True)

Doc/library/site.rst

@@ -245,9 +245,10 @@ Module contents
 
    Return a list containing all global site-packages directories.
 
-   For each directory present in *prefixes* (or :data:`PREFIXES` if *prefixes*
-   is ``None``), this function will find its site-packages subdirectory
-   depending on the system environment, and will return a list of full paths.
+   For each directory given in *prefixes* (or :data:`PREFIXES` if *prefixes*
+   is ``None``), this function will compute its site-packages subdirectory
+   depending on the system environment, and will return a list of full paths,
+   which are not checked for existence.
 
    .. versionadded:: 3.2
 

Doc/library/xml.dom.minidom.rst

@@ -249,11 +249,29 @@ rules apply:
   Instead, :mod:`!xml.dom.minidom` uses standard Python exceptions such as
   :exc:`TypeError` and :exc:`AttributeError`.
 
-* :class:`NodeList` objects are implemented using Python's built-in list type.
-  These objects provide the interface defined in the DOM specification, but with
-  earlier versions of Python they do not support the official API.  They are,
-  however, much more "Pythonic" than the interface defined in the W3C
-  recommendations.
+* Each of the :class:`~xml.dom.NodeList` and :class:`~xml.dom.NamedNodeMap`
+  interfaces has two implementations, which provide additional methods and
+  operations.
+
+  :attr:`~xml.dom.Node.childNodes` is a subclass of :class:`list`, or, for
+  nodes which cannot have children, a subclass of :class:`tuple`.
+  It supports iteration, concatenation, indexing and slicing.
+
+  :attr:`~xml.dom.Node.attributes` supports ``len()``, the :keyword:`in`
+  operator, subscription by a name or by a ``(namespaceURI, localName)``
+  tuple, assignment and deletion, and the methods :meth:`!get`, :meth:`!keys`,
+  :meth:`!keysNS`, :meth:`!values`, :meth:`!items` and :meth:`!itemsNS`.
+  :attr:`~xml.dom.DocumentType.entities` and
+  :attr:`~xml.dom.DocumentType.notations` are read-only and support only
+  ``len()`` and subscription by a name.
+
+* :attr:`~xml.dom.Document.strictErrorChecking` and
+  :attr:`~xml.dom.Attr.specified` are always ``False``.
+
+* :meth:`~xml.dom.Element.removeAttribute` and
+  :meth:`~xml.dom.Element.removeAttributeNS` raise
+  :exc:`~xml.dom.NotFoundErr` if there is no matching attribute,
+  while the DOM specifies that this has no effect.
 
 The following interfaces have no implementation in :mod:`!xml.dom.minidom`: