Import upstream CPython branch '3.14'

Summary:
Imported Python `3.14.0rc3+` from upstream rev [`22c63945c194ead0dc587572ab7e8395a2cb3a03`](https://www.github.com/python/cpython/commit/22c63945c194ead0dc587572ab7e8395a2cb3a03) (committed 2025-10-02 21:11:58+00:00).

# Commit Info

Base: (`3.14.0rc3+`) - [`86bc87b30d9548c4bef9a276f4d5250064009f2e`](https://www.github.com/python/cpython/commit/86bc87b30d9548c4bef9a276f4d5250064009f2e) (commit date: 2025-10-01 13:50:33+00:00)
Imported: (`3.14.0rc3+`) - [`22c63945c194ead0dc587572ab7e8395a2cb3a03`](https://www.github.com/python/cpython/commit/22c63945c194ead0dc587572ab7e8395a2cb3a03) (commit date: 2025-10-02 21:11:58+00:00)

Differential Revision: D83835926

fbshipit-source-id: 91d0b316d38d22dc696dc57e8255300e7a04f909

Author: generatedunixname1734921407115435

Doc/library/enum.rst

@@ -315,6 +315,7 @@ Data Types
       Returns ``['__class__', '__doc__', '__module__', 'name', 'value']`` and
       any public methods defined on *self.__class__*::
 
+         >>> from enum import Enum
          >>> from datetime import date
          >>> class Weekday(Enum):
          ...     MONDAY = 1
@@ -341,7 +342,7 @@ Data Types
       A *staticmethod* that is used to determine the next value returned by
       :class:`auto`::
 
-         >>> from enum import auto
+         >>> from enum import auto, Enum
          >>> class PowersOfThree(Enum):
          ...     @staticmethod
          ...     def _generate_next_value_(name, start, count, last_values):
@@ -373,7 +374,7 @@ Data Types
       A *classmethod* for looking up values not found in *cls*.  By default it
       does nothing, but can be overridden to implement custom search behavior::
 
-         >>> from enum import StrEnum
+         >>> from enum import auto, StrEnum
          >>> class Build(StrEnum):
          ...     DEBUG = auto()
          ...     OPTIMIZED = auto()
@@ -412,6 +413,7 @@ Data Types
       Returns the string used for *repr()* calls.  By default, returns the
       *Enum* name, member name, and value, but can be overridden::
 
+         >>> from enum import auto, Enum
          >>> class OtherStyle(Enum):
          ...     ALTERNATE = auto()
          ...     OTHER = auto()
@@ -428,6 +430,7 @@ Data Types
       Returns the string used for *str()* calls.  By default, returns the
       *Enum* name and member name, but can be overridden::
 
+         >>> from enum import auto, Enum
          >>> class OtherStyle(Enum):
          ...     ALTERNATE = auto()
          ...     OTHER = auto()
@@ -443,6 +446,7 @@ Data Types
       Returns the string used for *format()* and *f-string* calls.  By default,
       returns :meth:`__str__` return value, but can be overridden::
 
+         >>> from enum import auto, Enum
          >>> class OtherStyle(Enum):
          ...     ALTERNATE = auto()
          ...     OTHER = auto()

Doc/library/hashlib.rst

@@ -303,7 +303,7 @@ a file or file-like object.
    .. versionadded:: 3.11
 
    .. versionchanged:: 3.14
-      Now raises a :exc:`BlockingIOError` if the file is opened in blocking
+      Now raises a :exc:`BlockingIOError` if the file is opened in non-blocking
       mode. Previously, spurious null bytes were added to the digest.