-# Autogenerated by Sphinx on Tue Apr 8 14:20:44 2025
+# Autogenerated by Sphinx on Tue May 6 18:33:44 2025
# as part of the release process.
topics = {
Exceptions, and information on using the "raise" statement to generate
exceptions may be found in section The raise statement.
-Changed in version 3.14.0a6 (unreleased): Support for optionally
-dropping grouping parentheses when using multiple exception types. See
-**PEP 758**.
+Changed in version 3.14: Support for optionally dropping grouping
+parentheses when using multiple exception types. See **PEP 758**.
"except" clause
was illegal in the "finally" clause due to a problem with the
implementation.
-Changed in version 3.14.0a6 (unreleased): The compiler emits a
-"SyntaxWarning" when a "return", "break" or "continue" appears in a
-"finally" block (see **PEP 765**).
+Changed in version 3.14: The compiler emits a "SyntaxWarning" when a
+"return", "break" or "continue" appears in a "finally" block (see
+**PEP 765**).
The "with" statement
Added in version 3.14: The *commands* argument.
+awaitable pdb.set_trace_async(*, header=None, commands=None)
+
+ async version of "set_trace()". This function should be used inside
+ an async function with "await".
+
+ async def f():
+ await pdb.set_trace_async()
+
+ "await" statements are supported if the debugger is invoked by this
+ function.
+
+ Added in version 3.14.
+
pdb.post_mortem(t=None)
Enter post-mortem debugging of the given exception or traceback
the "Pdb" class and calling the method of the same name. If you want
to access further features, you have to do this yourself:
-class pdb.Pdb(completekey='tab', stdin=None, stdout=None, skip=None, nosigint=False, readrc=True, mode=None, backend=None)
+class pdb.Pdb(completekey='tab', stdin=None, stdout=None, skip=None, nosigint=False, readrc=True, mode=None, backend=None, colorize=False)
"Pdb" is the debugger class.
See "set_default_backend()". Otherwise the supported backends are
"'settrace'" and "'monitoring'".
+ The *colorize* argument, if set to "True", will enable colorized
+ output in the debugger, if color is supported. This will highlight
+ source code displayed in pdb.
+
Example call to enable tracing with *skip*:
import pdb; pdb.Pdb(skip=['django.*']).set_trace()
Added in version 3.14: Added the *backend* argument.
+ Added in version 3.14: Added the *colorize* argument.
+
Changed in version 3.14: Inline breakpoints like "breakpoint()" or
"pdb.set_trace()" will always stop the program at calling frame,
ignoring the *skip* pattern (if any).
When using "pdb.pm()" or "Pdb.post_mortem(...)" with a chained
exception instead of a traceback, it allows the user to move
between the chained exceptions using "exceptions" command to list
- exceptions, and "exception <number>" to switch to that exception.
+ exceptions, and "exceptions <number>" to switch to that exception.
Example:
called. The "__divmod__()" method should be the equivalent to
using "__floordiv__()" and "__mod__()"; it should not be related to
"__truediv__()". Note that "__pow__()" should be defined to accept
- an optional third argument if the ternary version of the built-in
- "pow()" function is to be supported.
+ an optional third argument if the three-argument version of the
+ built-in "pow()" function is to be supported.
If one of those methods does not support the operation with the
supplied arguments, it should return "NotImplemented".
called if "type(x).__sub__(x, y)" returns "NotImplemented" or
"type(y)" is a subclass of "type(x)". [5]
- Note that ternary "pow()" will not try calling "__rpow__()" (the
- coercion rules would become too complicated).
+ Note that "__rpow__()" should be defined to accept an optional
+ third argument if the three-argument version of the built-in
+ "pow()" function is to be supported.
+
+ Changed in version 3.14.0a7 (unreleased): Three-argument "pow()"
+ now try calling "__rpow__()" if necessary. Previously it was only
+ called in two-argument "pow()" and the binary power operator.
Note:
called. The "__divmod__()" method should be the equivalent to
using "__floordiv__()" and "__mod__()"; it should not be related to
"__truediv__()". Note that "__pow__()" should be defined to accept
- an optional third argument if the ternary version of the built-in
- "pow()" function is to be supported.
+ an optional third argument if the three-argument version of the
+ built-in "pow()" function is to be supported.
If one of those methods does not support the operation with the
supplied arguments, it should return "NotImplemented".
called if "type(x).__sub__(x, y)" returns "NotImplemented" or
"type(y)" is a subclass of "type(x)". [5]
- Note that ternary "pow()" will not try calling "__rpow__()" (the
- coercion rules would become too complicated).
+ Note that "__rpow__()" should be defined to accept an optional
+ third argument if the three-argument version of the built-in
+ "pow()" function is to be supported.
+
+ Changed in version 3.14.0a7 (unreleased): Three-argument "pow()"
+ now try calling "__rpow__()" if necessary. Previously it was only
+ called in two-argument "pow()" and the binary power operator.
Note:
Exceptions, and information on using the "raise" statement to generate
exceptions may be found in section The raise statement.
-Changed in version 3.14.0a6 (unreleased): Support for optionally
-dropping grouping parentheses when using multiple exception types. See
-**PEP 758**.
+Changed in version 3.14: Support for optionally dropping grouping
+parentheses when using multiple exception types. See **PEP 758**.
"except" clause
was illegal in the "finally" clause due to a problem with the
implementation.
-Changed in version 3.14.0a6 (unreleased): The compiler emits a
-"SyntaxWarning" when a "return", "break" or "continue" appears in a
-"finally" block (see **PEP 765**).
+Changed in version 3.14: The compiler emits a "SyntaxWarning" when a
+"return", "break" or "continue" appears in a "finally" block (see
+**PEP 765**).
''',
'types': r'''The standard type hierarchy
***************************
| | collected during class body execution. See also: |
| | "__annotations__ attributes". For best practices |
| | on working with "__annotations__", please see |
-| | "annotationlib". Caution: Accessing the |
-| | "__annotations__" attribute of a class object |
-| | directly may yield incorrect results in the |
-| | presence of metaclasses. In addition, the |
-| | attribute may not exist for some classes. Use |
-| | "annotationlib.get_annotations()" to retrieve |
-| | class annotations safely. Changed in version |
-| | 3.14: Annotations are now lazily evaluated. See |
-| | **PEP 649**. |
+| | "annotationlib". Where possible, use |
+| | "annotationlib.get_annotations()" instead of |
+| | accessing this attribute directly. Changed in |
+| | version 3.14: Annotations are now lazily |
+| | evaluated. See **PEP 649**. |
+----------------------------------------------------+----------------------------------------------------+
| type.__annotate__() | The *annotate function* for this class, or "None" |
| | if the class has no annotations. See also: |
-| | "__annotate__ attributes". Caution: Accessing |
-| | the "__annotate__" attribute of a class object |
-| | directly may yield incorrect results in the |
-| | presence of metaclasses. Use |
-| | "annotationlib.get_annotate_function()" to |
-| | retrieve the annotate function safely. Added in |
-| | version 3.14. |
+| | "__annotate__ attributes". Added in version 3.14. |
+----------------------------------------------------+----------------------------------------------------+
| type.__type_params__ | A "tuple" containing the type parameters of a |
| | generic class. Added in version 3.12. |
Flags for details on the semantics of each flags that might be
present.
-Future feature declarations ("from __future__ import division") also
-use bits in "co_flags" to indicate whether a code object was compiled
-with a particular feature enabled: bit "0x2000" is set if the function
-was compiled with future division enabled; bits "0x10" and "0x1000"
-were used in earlier versions of Python.
+Future feature declarations (for example, "from __future__ import
+division") also use bits in "co_flags" to indicate whether a code
+object was compiled with a particular feature enabled. See
+"compiler_flag".
Other bits in "co_flags" are reserved for internal use.
-If a code object represents a function and has a docstring, the first
-item in "co_consts" is the docstring of the function.
+If a code object represents a function and has a docstring, the
+"CO_HAS_DOCSTRING" bit is set in "co_flags" and the first item in
+"co_consts" is the docstring of the function.
Methods on code objects
--- /dev/null
+.. date: 2025-04-25-13-34-27
+.. gh-issue: 132930
+.. nonce: 6MJumW
+.. release date: 2025-05-06
+.. section: Windows
+
+Marks the installer for Windows as deprecated and updates documentation to
+cover the new Python install manager.
+
+..
+
+.. date: 2025-03-27-16-22-58
+.. gh-issue: 127405
+.. nonce: aASs2Z
+.. section: Windows
+
+Add ``ABIFLAGS`` to :func:`sysconfig.get_config_vars` on Windows. Patch by
+Xuehai Pan.
+
+..
+
+.. date: 2025-03-10-08-19-22
+.. gh-issue: 130453
+.. nonce: 9B0x8k
+.. section: Tools/Demos
+
+Allow passing multiple keyword arguments with the same function name in
+:program:`pygettext`.
+
+..
+
+.. date: 2025-02-16-19-00-00
+.. gh-issue: 130195
+.. nonce: 19274
+.. section: Tools/Demos
+
+Add warning messages when :program:`pygettext` unimplemented
+``-a/--extract-all`` option is called.
+
+..
+
+.. date: 2025-04-29-14-56-37
+.. gh-issue: 133131
+.. nonce: 1pchjl
+.. section: Tests
+
+The iOS testbed will now select the most recently released "SE-class" device
+for testing if a device isn't explicitly specified.
+
+..
+
+.. date: 2025-04-23-12-40-27
+.. gh-issue: 91048
+.. nonce: WJQCdV
+.. section: Tests
+
+Add ability to externally inspect all pending asyncio tasks, even if no task
+is currently entered on the event loop.
+
+..
+
+.. date: 2025-04-23-02-23-37
+.. gh-issue: 109981
+.. nonce: IX3k8p
+.. section: Tests
+
+The test helper that counts the list of open file descriptors now uses the
+optimised ``/dev/fd`` approach on all Apple platforms, not just macOS. This
+avoids crashes caused by guarded file descriptors.
+
+..
+
+.. date: 2025-04-18-14-00-38
+.. gh-issue: 132678
+.. nonce: j_ZKf2
+.. section: Tests
+
+Add ``--prioritize`` to ``-m test``. This option allows the user to specify
+which selected tests should execute first, even if the order is otherwise
+randomized. This is particularly useful for tests that run the longest.
+
+..
+
+.. date: 2025-03-17-19-47-27
+.. gh-issue: 131290
+.. nonce: NyCIXR
+.. section: Tests
+
+Tests in :file:`Lib/test` can now be correctly executed as standalone
+scripts.
+
+..
+
+.. date: 2024-02-18-02-53-25
+.. gh-issue: 115322
+.. nonce: Um2Sjx
+.. section: Security
+
+The underlying extension modules behind :mod:`readline`:, :mod:`subprocess`,
+and :mod:`ctypes` now raise audit events on previously uncovered code paths
+that could lead to file system access related to C function calling and
+external binary execution. The ``ctypes.call_function`` audit hook has also
+been fixed to use an unsigned value for its ``function pointer``.
+
+..
+
+.. date: 2025-05-06-00-10-10
+.. gh-issue: 133490
+.. nonce: Ubrppz
+.. section: Library
+
+Add color support to PDB in remote mode.
+
+..
+
+.. date: 2025-05-04-16-37-28
+.. gh-issue: 132493
+.. nonce: 5yjZ75
+.. section: Library
+
+Avoid eagerly evaluating annotations in functions decorated with
+:func:`reprlib.recursive_repr`.
+
+..
+
+.. date: 2025-05-04-16-00-01
+.. gh-issue: 130645
+.. nonce: yNwKue
+.. section: Library
+
+Add color to stdlib argparse CLIs. Patch by Hugo van Kemenade.
+
+..
+
+.. date: 2025-05-04-15-39-25
+.. gh-issue: 119180
+.. nonce: avZ3Hm
+.. section: Library
+
+Make :func:`annotationlib.get_annotations` succeed with the ``FORWARDREF``
+format if evaluating the annotations throws an exception other than
+:exc:`NameError` or :exc:`AttributeError`.
+
+..
+
+.. date: 2025-05-04-13-46-20
+.. gh-issue: 133351
+.. nonce: YsZls1
+.. section: Library
+
+Fix remote PDB to correctly request tab completions for Python expressions
+from the server when completing a continuation line of a multi-line Python
+block.
+
+..
+
+.. date: 2025-05-04-13-40-05
+.. gh-issue: 133367
+.. nonce: E5nl2u
+.. section: Library
+
+Add the ``--feature-version``, ``--optimize``, and ``--show-empty`` options
+to the :mod:`ast` command-line interface. Patch by Semyon Moroz.
+
+..
+
+.. date: 2025-05-03-21-55-33
+.. gh-issue: 133363
+.. nonce: PTLnRP
+.. section: Library
+
+The :class:`cmd.Cmd` class has been fixed to reliably call the
+``completedefault`` method whenever the ``do_shell`` method is not defined
+and tab completion is requested for a line beginning with ``!``.
+
+..
+
+.. date: 2025-05-03-18-48-54
+.. gh-issue: 113081
+.. nonce: JsLJ1X
+.. section: Library
+
+Highlight syntax on source code in :mod:`pdb`.
+
+..
+
+.. date: 2025-05-03-16-04-04
+.. gh-issue: 133349
+.. nonce: kAhJDY
+.. section: Library
+
+Introduced auto-indent in :mod:`pdb` multi-line input.
+
+..
+
+.. date: 2025-05-03-13-19-22
+.. gh-issue: 133306
+.. nonce: ustKV3
+.. section: Library
+
+Use ``\z`` instead of ``\Z`` in :func:`fnmatch.translate` and
+:func:`glob.translate`.
+
+..
+
+.. date: 2025-05-02-21-35-03
+.. gh-issue: 133306
+.. nonce: -vBye5
+.. section: Library
+
+Support ``\z`` as a synonym for ``\Z`` in :mod:`regular expressions <re>`.
+
+..
+
+.. date: 2025-05-02-17-23-41
+.. gh-issue: 133300
+.. nonce: oAh1P2
+.. section: Library
+
+Make :class:`argparse.ArgumentParser`'s ``suggest_on_error`` a keyword-only
+parameter. Patch by Hugo van Kemenade.
+
+..
+
+.. date: 2025-05-02-13-16-44
+.. gh-issue: 133290
+.. nonce: R5WrLM
+.. section: Library
+
+Fix attribute caching issue when setting :attr:`ctypes._Pointer._type_` in
+the undocumented and deprecated :func:`!ctypes.SetPointerType` function and
+the undocumented :meth:`!set_type` method.
+
+..
+
+.. date: 2025-05-01-18-32-44
+.. gh-issue: 133223
+.. nonce: KE_T5f
+.. section: Library
+
+When PDB is attached to a remote process, do a better job of intercepting
+Ctrl+C and forwarding it to the remote process.
+
+..
+
+.. date: 2025-04-29-23-20-52
+.. gh-issue: 133153
+.. nonce: M-w9yC
+.. section: Library
+
+Do not complete :mod:`pdb` commands in ``interact`` mode of :mod:`pdb`.
+
+..
+
+.. date: 2025-04-29-13-40-05
+.. gh-issue: 133139
+.. nonce: 9yCcC2
+.. section: Library
+
+Add the :func:`curses.assume_default_colors` function, a refinement of the
+:func:`curses.use_default_colors` function which allows to change the color
+pair ``0``.
+
+..
+
+.. date: 2025-04-29-02-23-04
+.. gh-issue: 133089
+.. nonce: 8Jy1ZS
+.. section: Library
+
+Use original timeout value for :exc:`subprocess.TimeoutExpired` when the
+func :meth:`subprocess.run` is called with a timeout instead of sometimes a
+confusing partial remaining time out value used internally on the final
+``wait()``.
+
+..
+
+.. date: 2025-04-27-15-21-05
+.. gh-issue: 133036
+.. nonce: HCNYA7
+.. section: Library
+
+:func:`codecs.open` is now deprecated. Use :func:`open` instead. Contributed
+by Inada Naoki.
+
+..
+
+.. date: 2025-04-26-17-41-20
+.. gh-issue: 132987
+.. nonce: xxBCqg
+.. section: Library
+
+Many builtin and extension functions which accept an unsigned integer
+argument, now use :meth:`~object.__index__` if available.
+
+..
+
+.. date: 2025-04-26-15-43-23
+.. gh-issue: 124703
+.. nonce: jc5auS
+.. section: Library
+
+Set return code to ``1`` when aborting process from :mod:`pdb`.
+
+..
+
+.. date: 2025-04-26-14-44-21
+.. gh-issue: 133005
+.. nonce: y4SRfk
+.. section: Library
+
+Support passing ``preset`` option to :func:`tarfile.open` when using
+``'w|xz'`` mode.
+
+..
+
+.. date: 2025-04-26-12-25-42
+.. gh-issue: 115032
+.. nonce: jnM2Co
+.. section: Library
+
+Support for custom logging handlers with the *strm* argument is deprecated
+and scheduled for removal in Python 3.16. Define handlers with the *stream*
+argument instead. Patch by Mariusz Felisiak.
+
+..
+
+.. date: 2025-04-26-10-57-15
+.. gh-issue: 132991
+.. nonce: ekkqdt
+.. section: Library
+
+Add :data:`!socket.IP_FREEBIND` constant on Linux 2.4 and later.
+
+..
+
+.. date: 2025-04-26-10-54-38
+.. gh-issue: 132995
+.. nonce: JuDF9p
+.. section: Library
+
+Bump the version of pip bundled in ensurepip to version 25.1.1
+
+..
+
+.. date: 2025-04-25-21-41-45
+.. gh-issue: 132933
+.. nonce: yO3ySJ
+.. section: Library
+
+The zipapp module now applies the filter when creating the list of files to
+add, rather than waiting until the file is being added to the archive.
+
+..
+
+.. date: 2025-04-25-16-20-49
+.. gh-issue: 121249
+.. nonce: uue2nK
+.. section: Library
+
+Always support the :c:expr:`float complex` and :c:expr:`double complex` C
+types in the :mod:`struct` module. Patch by Sergey B Kirpichev.
+
+..
+
+.. date: 2025-04-25-12-55-06
+.. gh-issue: 132915
+.. nonce: XuKCXn
+.. section: Library
+
+:func:`fcntl.fcntl` and :func:`fcntl.ioctl` can now detect a buffer overflow
+and raise :exc:`SystemError`. The stack and memory can be corrupted in such
+case, so treat this error as fatal.
+
+..
+
+.. date: 2025-04-25-10-51-00
+.. gh-issue: 132017
+.. nonce: SIGCONT1
+.. section: Library
+
+Fix error when ``pyrepl`` is suspended, then resumed and terminated.
+
+..
+
+.. date: 2025-04-24-21-22-46
+.. gh-issue: 132893
+.. nonce: KFuxZ2
+.. section: Library
+
+Improved :meth:`statistics.NormalDist.cdf` accuracy for inputs smaller than
+the mean.
+
+..
+
+.. date: 2025-04-24-18-07-49
+.. gh-issue: 130328
+.. nonce: z7CN8z
+.. section: Library
+
+Speedup pasting in ``PyREPL`` on Windows. Fix by Chris Eibl.
+
+..
+
+.. date: 2025-04-24-09-10-04
+.. gh-issue: 132882
+.. nonce: 6zoyp5
+.. section: Library
+
+Fix copying of :class:`typing.Union` objects containing objects that do not
+support the ``|`` operator.
+
+..
+
+.. date: 2025-04-24-01-03-40
+.. gh-issue: 93696
+.. nonce: kM-MBp
+.. section: Library
+
+Fixed the breakpoint display error for frozen modules in :mod:`pdb`.
+
+..
+
+.. date: 2025-04-23-18-35-09
+.. gh-issue: 129965
+.. nonce: nj7Fx2
+.. section: Library
+
+Add MIME types for ``.7z``, ``.apk``, ``.deb``, ``.glb``, ``.gltf``,
+``.gz``, ``.m4v``, ``.php``, ``.rar``, ``.rpm``, ``.stl`` and ``.wmv``.
+Patch by Hugo van Kemenade.
+
+..
+
+.. date: 2025-04-23-14-50-45
+.. gh-issue: 132742
+.. nonce: PB6B7F
+.. section: Library
+
+:func:`fcntl.fcntl` now supports arbitrary :term:`bytes-like objects
+<bytes-like object>`, not only :class:`bytes`. :func:`fcntl.ioctl` now
+automatically retries system calls failing with EINTR and releases the GIL
+during a system call even for large bytes-like object.
+
+..
+
+.. date: 2025-04-22-19-45-46
+.. gh-issue: 132451
+.. nonce: eIzMvE
+.. section: Library
+
+The CLI for the PDB debugger now accepts a ``-p PID`` argument to allow
+attaching to a running process. The process must be running the same version
+of Python as the one running PDB.
+
+..
+
+.. date: 2025-04-22-16-35-37
+.. gh-issue: 125618
+.. nonce: PEocn3
+.. section: Library
+
+Add a *format* parameter to :meth:`annotationlib.ForwardRef.evaluate`.
+Evaluating annotations in the ``FORWARDREF`` format now succeeds in more
+cases that would previously have raised an exception.
+
+..
+
+.. date: 2025-04-22-13-42-12
+.. gh-issue: 132805
+.. nonce: r-dhmJ
+.. section: Library
+
+Fix incorrect handling of nested non-constant values in the FORWARDREF
+format in :mod:`annotationlib`.
+
+..
+
+.. date: 2025-04-19-19-58-27
+.. gh-issue: 132734
+.. nonce: S6F9Cs
+.. section: Library
+
+Add new constants for Bluetooth :mod:`sockets <socket>`.
+
+..
+
+.. date: 2025-04-18-14-34-43
+.. gh-issue: 132673
+.. nonce: 0sliCv
+.. section: Library
+
+Fix :exc:`AssertionError` raised on :class:`ctypes.Structure` with ``_align_
+= 0`` and ``_fields_ = []``.
+
+..
+
+.. date: 2025-04-18-10-00-09
+.. gh-issue: 132578
+.. nonce: ruNvF-
+.. section: Library
+
+Rename the ``threading.Thread._handle`` field to avoid shadowing methods
+defined on subclasses of ``threading.Thread``.
+
+..
+
+.. date: 2025-04-16-11-44-56
+.. gh-issue: 132561
+.. nonce: ekkDPE
+.. section: Library
+
+Fix the public ``locked`` method of ``multiprocessing.SemLock`` class. Also
+adding 2 tests for the derivated :class:`multiprocessing.Lock` and
+:class:`multiprocessing.RLock` classes.
+
+..
+
+.. date: 2025-04-16-01-41-34
+.. gh-issue: 121468
+.. nonce: rxgE1z
+.. section: Library
+
+Add :func:`pdb.set_trace_async` function to support :keyword:`await`
+statements in :mod:`pdb`.
+
+..
+
+.. date: 2025-04-15-08-39-14
+.. gh-issue: 132493
+.. nonce: V0gLkU
+.. section: Library
+
+:class:`typing.Protocol` now uses :func:`annotationlib.get_annotations` when
+checking whether or not an instance implements the protocol with
+:func:`isinstance`. This enables support for ``isinstance`` checks against
+classes with deferred annotations.
+
+..
+
+.. date: 2025-04-15-03-20-00
+.. gh-issue: 132536
+.. nonce: i5Pvof
+.. section: Library
+
+Do not disable :monitoring-event:`PY_THROW` event in :mod:`bdb` because it
+can't be disabled.
+
+..
+
+.. date: 2025-04-14-23-00-00
+.. gh-issue: 132527
+.. nonce: kTi8T7
+.. section: Library
+
+Include the valid typecode 'w' in the error message when an invalid typecode
+is passed to :class:`array.array`.
+
+..
+
+.. date: 2025-04-14-20-38-43
+.. gh-issue: 132099
+.. nonce: 0l0LlK
+.. section: Library
+
+The Bluetooth socket with the :data:`~socket.BTPROTO_HCI` protocol on Linux
+now accepts an address in the format of an integer ``device_id``, not only a
+tuple ``(device_id,)``.
+
+..
+
+.. date: 2025-04-14-17-24-50
+.. gh-issue: 81793
+.. nonce: OhRTTT
+.. section: Library
+
+Fix :func:`os.link` on platforms (like Linux) where the system
+:c:func:`!link` function does not follow symlinks. On Linux, it now follows
+symlinks by default or if ``follow_symlinks=True`` is specified. On Windows,
+it now raises an error if ``follow_symlinks=True`` is passed. On macOS, it
+now raises an error if ``follow_symlinks=False`` is passed and the system
+:c:func:`!linkat` function is not available at runtime.
+
+..
+
+.. date: 2025-04-13-21-35-50
+.. gh-issue: 132493
+.. nonce: 5SAQJn
+.. section: Library
+
+Support creation of :class:`typing.Protocol` classes with annotations that
+cannot be resolved at class creation time.
+
+..
+
+.. date: 2025-04-13-21-22-37
+.. gh-issue: 132491
+.. nonce: jJfT4e
+.. section: Library
+
+Rename ``annotationlib.value_to_string`` to :func:`annotationlib.type_repr`
+and provide better handling for function objects.
+
+..
+
+.. date: 2025-04-13-21-11-11
+.. gh-issue: 132426
+.. nonce: SZno1d
+.. section: Library
+
+Add :func:`annotationlib.get_annotate_from_class_namespace` as a helper for
+accessing annotations in metaclasses, and remove
+``annotationlib.get_annotate_function``.
+
+..
+
+.. date: 2025-04-13-19-17-14
+.. gh-issue: 70145
+.. nonce: nJ2MKg
+.. section: Library
+
+Add support for channels in Bluetooth HCI protocol
+(:const:`~socket.BTPROTO_HCI`).
+
+..
+
+.. date: 2025-04-12-19-42-51
+.. gh-issue: 131913
+.. nonce: twOx7K
+.. section: Library
+
+Add a shortcut function :func:`multiprocessing.Process.interrupt` alongside
+the existing :func:`multiprocessing.Process.terminate` and
+:func:`multiprocessing.Process.kill` for an improved control over child
+process termination.
+
+..
+
+.. date: 2025-04-12-16-29-42
+.. gh-issue: 132439
+.. nonce: 3twrU6
+.. section: Library
+
+Fix ``PyREPL`` on Windows: characters entered via AltGr are swallowed. Patch
+by Chris Eibl.
+
+..
+
+.. date: 2025-04-12-12-59-51
+.. gh-issue: 132429
+.. nonce: OEIdlW
+.. section: Library
+
+Fix support of Bluetooth sockets on NetBSD and DragonFly BSD. Add support
+for *cid* and *bdaddr_type* in the BTPROTO_L2CAP address on FreeBSD. Return
+*cid* in ``getsockname()`` for BTPROTO_L2CAP if it is not zero.
+
+..
+
+.. date: 2025-04-12-09-30-24
+.. gh-issue: 132106
+.. nonce: OxUds3
+.. section: Library
+
+:meth:`QueueListener.start <logging.handlers.QueueListener.start>` now
+raises a :exc:`RuntimeError` if the listener is already started.
+
+..
+
+.. date: 2025-04-11-21-48-49
+.. gh-issue: 132417
+.. nonce: uILGdS
+.. section: Library
+
+Fix a ``NULL`` pointer dereference when a C function called using
+:mod:`ctypes` with ``restype`` :class:`~ctypes.py_object` returns ``NULL``.
+
+..
+
+.. date: 2025-04-11-12-41-47
+.. gh-issue: 132385
+.. nonce: 86HoA7
+.. section: Library
+
+Fix instance error suggestions trigger potential exceptions in
+:meth:`object.__getattr__` in :mod:`traceback`.
+
+..
+
+.. date: 2025-04-10-21-43-04
+.. gh-issue: 125866
+.. nonce: EZ9X8D
+.. section: Library
+
+Add optional *add_scheme* argument to :func:`urllib.request.pathname2url`;
+when set to true, a complete URL is returned. Likewise add optional
+*require_scheme* argument to :func:`~urllib.request.url2pathname`; when set
+to true, a complete URL is accepted.
+
+..
+
+.. date: 2025-04-10-13-06-42
+.. gh-issue: 132308
+.. nonce: 1js5SI
+.. section: Library
+
+A :class:`traceback.TracebackException` now correctly renders the
+``__context__`` and ``__cause__`` attributes from :ref:`falsey <truth>`
+:class:`Exception`, and the ``exceptions`` attribute from falsey
+:class:`ExceptionGroup`.
+
+..
+
+.. date: 2025-04-09-19-07-22
+.. gh-issue: 130645
+.. nonce: cVfE1X
+.. section: Library
+
+Add colour to :mod:`argparse` help output. Patch by Hugo van Kemenade.
+
+..
+
+.. date: 2025-04-08-14-50-39
+.. gh-issue: 127495
+.. nonce: Q0V0bS
+.. section: Library
+
+In PyREPL, append a new entry to the ``PYTHON_HISTORY`` file *after* every
+statement. This should preserve command-line history after interpreter is
+terminated. Patch by Sergey B Kirpichev.
+
+..
+
+.. date: 2025-04-08-10-45-22
+.. gh-issue: 129463
+.. nonce: b1qEP3
+.. section: Library
+
+Comparison of :class:`annotationlib.ForwardRef` objects no longer uses the
+internal ``__code__`` and ``__ast_node__`` attributes, which are used as
+caches.
+
+..
+
+.. date: 2025-04-08-01-55-11
+.. gh-issue: 132250
+.. nonce: APBFCw
+.. section: Library
+
+Fixed the :exc:`SystemError` in :mod:`cProfile` when locating the actual C
+function of a method raises an exception.
+
+..
+
+.. date: 2025-04-06-21-17-14
+.. gh-issue: 132064
+.. nonce: ktPwDM
+.. section: Library
+
+:func:`annotationlib.get_annotations` now uses the ``__annotate__``
+attribute if it is present, even if ``__annotations__`` is not present.
+Additionally, the function now raises a :py:exc:`TypeError` if it is passed
+an object that does not have any annotatins.
+
+..
+
+.. date: 2025-04-06-14-34-29
+.. gh-issue: 130664
+.. nonce: JF2r-U
+.. section: Library
+
+Support the ``'_'`` digit separator in formatting of the integral part of
+:class:`~decimal.Decimal`'s. Patch by Sergey B Kirpichev.
+
+..
+
+.. date: 2025-04-05-16-05-34
+.. gh-issue: 131952
+.. nonce: HX6gCX
+.. section: Library
+
+Add color output to the :program:`json` CLI. Patch by Tomas Roun.
+
+..
+
+.. date: 2025-04-05-15-05-09
+.. gh-issue: 132063
+.. nonce: KHnslU
+.. section: Library
+
+Prevent exceptions that evaluate as falsey (namely, when their ``__bool__``
+method returns ``False`` or their ``__len__`` method returns 0) from being
+ignored by :class:`concurrent.futures.ProcessPoolExecutor` and
+:class:`concurrent.futures.ThreadPoolExecutor`.
+
+..
+
+.. date: 2025-04-05-02-22-49
+.. gh-issue: 132106
+.. nonce: XMjhQJ
+.. section: Library
+
+:class:`logging.handlers.QueueListener` now implements the context manager
+protocol, allowing it to be used in a :keyword:`with` statement.
+
+..
+
+.. date: 2025-04-03-20-28-54
+.. gh-issue: 132054
+.. nonce: c1nlOx
+.. section: Library
+
+The ``application/yaml`` mime type (:rfc:`9512`) is now supported by
+:mod:`mimetypes`. Patch by Sasha "Nelie" Chernykh and Hugo van Kemenade.
+
+..
+
+.. date: 2025-04-03-17-19-42
+.. gh-issue: 119605
+.. nonce: c7QXAA
+.. section: Library
+
+Respect ``follow_wrapped`` for :meth:`!__init__` and :meth:`!__new__`
+methods when getting the class signature for a class with
+:func:`inspect.signature`. Preserve class signature after wrapping with
+:func:`warnings.deprecated`. Patch by Xuehai Pan.
+
+..
+
+.. date: 2025-04-03-00-56-48
+.. gh-issue: 118761
+.. nonce: Vb0S1B
+.. section: Library
+
+Improve import times by up to 33x for the :mod:`shlex` module, and improve
+the performance of :func:`shlex.quote` by up to 12x. Patch by Adam Turner.
+
+..
+
+.. date: 2025-04-01-18-24-58
+.. gh-issue: 85302
+.. nonce: 7knfUf
+.. section: Library
+
+Add support for :data:`~socket.BTPROTO_SCO` in sockets on FreeBSD.
+
+..
+
+.. date: 2025-03-26-10-56-22
+.. gh-issue: 131757
+.. nonce: pFRdmN
+.. section: Library
+
+Make :func:`functools.lru_cache` call the cached function unlocked to allow
+concurrency.
+
+..
+
+.. date: 2025-03-23-11-33-09
+.. gh-issue: 131423
+.. nonce: bQlcEb
+.. section: Library
+
+:mod:`ssl` can show descriptions for errors added in OpenSSL 3.4.1. Patch by
+Bénédikt Tran.
+
+..
+
+.. date: 2025-03-21-21-24-36
+.. gh-issue: 131434
+.. nonce: BPkyyh
+.. section: Library
+
+Improve error reporting for incorrect format in :func:`time.strptime`.
+
+..
+
+.. date: 2025-03-21-17-34-27
+.. gh-issue: 131524
+.. nonce: Vj1pO_
+.. section: Library
+
+Add help message to :mod:`platform` command-line interface. Contributed by
+Harry Lees.
+
+..
+
+.. date: 2025-03-17-23-07-57
+.. gh-issue: 100926
+.. nonce: B8gcbz
+.. section: Library
+
+Move :func:`ctypes.POINTER` types cache from a global internal cache
+(``_pointer_type_cache``) to the :attr:`ctypes._CData.__pointer_type__`
+attribute of the corresponding :mod:`ctypes` types. This will stop the cache
+from growing without limits in some situations.
+
+..
+
+.. date: 2025-03-16-17-40-00
+.. gh-issue: 85702
+.. nonce: qudq12
+.. section: Library
+
+If ``zoneinfo._common.load_tzdata`` is given a package without a resource a
+``ZoneInfoNotFoundError`` is raised rather than a :exc:`IsADirectoryError`.
+
+..
+
+.. date: 2025-03-14-14-18-49
+.. gh-issue: 123471
+.. nonce: sduBKk
+.. section: Library
+
+Make concurrent iterations over :class:`itertools.repeat` safe under
+free-threading.
+
+..
+
+.. date: 2025-03-11-21-08-46
+.. gh-issue: 131127
+.. nonce: whcVdY
+.. section: Library
+
+Systems using LibreSSL now successfully build.
+
+..
+
+.. date: 2025-03-09-10-37-00
+.. gh-issue: 89157
+.. nonce: qg3r138
+.. section: Library
+
+Make the pure Python implementation of :func:`datetime.date.fromisoformat`,
+only accept ASCII strings for consistency with the C implementation.
+
+..
+
+.. date: 2025-03-07-17-47-32
+.. gh-issue: 130941
+.. nonce: 7_GvhW
+.. section: Library
+
+Fix :class:`configparser.ConfigParser` parsing empty interpolation with
+``allow_no_value`` set to ``True``.
+
+..
+
+.. date: 2025-03-01-15-00-00
+.. gh-issue: 110067
+.. nonce: 1ad3as
+.. section: Library
+
+Make :mod:`heapq` max-heap functions :func:`heapq.heapify_max`,
+:func:`heapq.heappush_max`, :func:`heapq.heappop_max`, and
+:func:`heapq.heapreplace_max` public. Previous underscored naming is kept
+for backwards compatibility. Additionally, the missing function
+:func:`heapq.heappushpop_max` has been added to both the C and Python
+implementations.
+
+..
+
+.. date: 2025-03-01-12-37-08
+.. gh-issue: 129098
+.. nonce: eJ2-6L
+.. section: Library
+
+Fix REPL traceback reporting when using :func:`compile` with an inexisting
+file. Patch by Bénédikt Tran.
+
+..
+
+.. date: 2025-02-27-14-25-01
+.. gh-issue: 130631
+.. nonce: dmZcZM
+.. section: Library
+
+:func:`!http.cookiejar.join_header_words` is now more similar to the
+original Perl version. It now quotes the same set of characters and always
+quote values that end with ``"\n"``.
+
+..
+
+.. date: 2025-02-24-12-22-51
+.. gh-issue: 130482
+.. nonce: p2DrrL
+.. section: Library
+
+Add ability to specify name for :class:`!tkinter.OptionMenu` and
+:class:`!tkinter.ttk.OptionMenu`.
+
+..
+
+.. date: 2025-02-24-07-08-11
+.. gh-issue: 77065
+.. nonce: 8uW0Wf
+.. section: Library
+
+Add keyword-only optional argument *echo_char* for :meth:`getpass.getpass`
+for optional visual keyboard feedback support. Patch by Semyon Moroz.
+
+..
+
+.. date: 2025-02-22-13-07-06
+.. gh-issue: 130317
+.. nonce: tnxd0I
+.. section: Library
+
+Fix :c:func:`PyFloat_Pack2` and :c:func:`PyFloat_Unpack2` for NaN's with
+payload. This corrects round-trip for :func:`struct.unpack` and
+:func:`struct.pack` in case of the IEEE 754 binary16 "half precision" type.
+Patch by Sergey B Kirpichev.
+
+..
+
+.. date: 2025-02-21-15-46-43
+.. gh-issue: 130402
+.. nonce: Rwu_KK
+.. section: Library
+
+Joining running daemon threads during interpreter shutdown now raises
+:exc:`PythonFinalizationError`.
+
+..
+
+.. date: 2025-02-16-06-25-01
+.. gh-issue: 130167
+.. nonce: kUg7Rc
+.. section: Library
+
+Improve speed of :func:`difflib.IS_LINE_JUNK`. Patch by Semyon Moroz.
+
+..
+
+.. date: 2025-02-12-16-37-34
+.. gh-issue: 101410
+.. nonce: 0GInct
+.. section: Library
+
+Added more detailed messages for domain errors in the :mod:`math` module.
+
+..
+
+.. date: 2025-02-11-10-22-11
+.. gh-issue: 128384
+.. nonce: jyWEkA
+.. section: Library
+
+Make :class:`warnings.catch_warnings` use a context variable for holding the
+warning filtering state if the :data:`sys.flags.context_aware_warnings` flag
+is set to true. This makes using the context manager thread-safe in
+multi-threaded programs. The flag is true by default in free-threaded
+builds and is otherwise false. The value of the flag can be overridden by
+the the :option:`-X context_aware_warnings <-X>` command-line option or by
+the :envvar:`PYTHON_CONTEXT_AWARE_WARNINGS` environment variable.
+
+..
+
+.. date: 2025-02-06-11-23-51
+.. gh-issue: 129719
+.. nonce: Of6rvb
+.. section: Library
+
+Fix missing :data:`!socket.CAN_RAW_ERR_FILTER` constant in the socket module
+on Linux systems. It was missing since Python 3.11.
+
+..
+
+.. date: 2025-01-21-11-48-19
+.. gh-issue: 129027
+.. nonce: w0vxzZ
+.. section: Library
+
+Raise :exc:`DeprecationWarning` for :func:`sys._clear_type_cache`. This
+function was deprecated in Python 3.13 but it didn't raise a runtime
+warning.
+
+..
+
+.. date: 2024-12-28-11-01-36
+.. gh-issue: 128307
+.. nonce: BRCYTA
+.. section: Library
+
+Add ``eager_start`` keyword argument to :meth:`asyncio.loop.create_task`
+
+..
+
+.. date: 2024-12-21-13-31-55
+.. gh-issue: 127604
+.. nonce: etL5mf
+.. section: Library
+
+Add support for printing the C stack trace on systems that support it via
+:func:`faulthandler.dump_c_stack` or via the *c_stack* argument in
+:func:`faulthandler.enable`.
+
+..
+
+.. date: 2024-11-29-13-06-52
+.. gh-issue: 127385
+.. nonce: PErcyB
+.. section: Library
+
+Add the ``F_DUPFD_QUERY`` constant to the :mod:`fcntl` module.
+
+..
+
+.. date: 2024-11-14-21-17-48
+.. gh-issue: 126838
+.. nonce: Yr5vKF
+.. section: Library
+
+Add *resolve_host* keyword-only parameter to
+:func:`urllib.request.url2pathname`, and fix handling of file URLs with
+authorities.
+
+..
+
+.. date: 2024-09-18-09-15-40
+.. gh-issue: 82129
+.. nonce: GQwt3u
+.. section: Library
+
+Fix :exc:`NameError` when calling :func:`typing.get_type_hints` on a
+:func:`dataclasses.dataclass` created by :func:`dataclasses.make_dataclass`
+with un-annotated fields.
+
+..
+
+.. date: 2024-08-02-20-01-36
+.. gh-issue: 122559
+.. nonce: 2JlJr3
+.. section: Library
+
+Remove :meth:`!__reduce__` and :meth:`!__reduce_ex__` methods that always
+raise :exc:`TypeError` in the C implementation of :class:`io.FileIO`,
+:class:`io.BufferedReader`, :class:`io.BufferedWriter` and
+:class:`io.BufferedRandom` and replace them with default
+:meth:`!__getstate__` methods that raise :exc:`!TypeError`. This restores
+fine details of behavior of Python 3.11 and older versions.
+
+..
+
+.. date: 2024-07-23-17-08-41
+.. gh-issue: 122179
+.. nonce: 0jZm9h
+.. section: Library
+
+:func:`hashlib.file_digest` now raises :exc:`BlockingIOError` when no data
+is available during non-blocking I/O. Before, it added spurious null bytes
+to the digest.
+
+..
+
+.. date: 2024-07-19-07-16-50
+.. gh-issue: 53032
+.. nonce: paXN3p
+.. section: Library
+
+Expose :func:`decimal.IEEEContext` to support creation of contexts
+corresponding to the IEEE 754 (2008) decimal interchange formats. Patch by
+Sergey B Kirpichev.
+
+..
+
+.. date: 2024-06-07-15-03-54
+.. gh-issue: 120220
+.. nonce: NNxrr_
+.. section: Library
+
+Deprecate the :class:`!tkinter.Variable` methods :meth:`!trace_variable`,
+:meth:`!trace_vdelete` and :meth:`!trace_vinfo`. Methods :meth:`!trace_add`,
+:meth:`!trace_remove` and :meth:`!trace_info` can be used instead.
+
+..
+
+.. date: 2023-12-29-09-44-41
+.. gh-issue: 113539
+.. nonce: YDkv9O
+.. section: Library
+
+:mod:`webbrowser`: Names in the :envvar:`BROWSER` environment variable can
+now refer to already registered web browsers, instead of always generating a
+new browser command.
+
+This makes it possible to set :envvar:`BROWSER` to the value of one of the
+supported browsers on macOS.
+
+..
+
+.. bpo: 44172
+.. date: 2021-05-18-19-12-58
+.. nonce: rJ_-CI
+.. section: Library
+
+Keep a reference to original :mod:`curses` windows in subwindows so that the
+original window does not get deleted before subwindows.
+
+..
+
+.. date: 2019-09-10-09-28-52
+.. gh-issue: 75223
+.. nonce: VyAJS9
+.. section: Library
+
+Deprecate undotted extensions in :meth:`mimetypes.MimeTypes.add_type`. Patch
+by Hugo van Kemenade.
+
+..
+
+.. date: 2024-11-08-18-07-13
+.. gh-issue: 112936
+.. nonce: 1Q2RcP
+.. section: IDLE
+
+fix IDLE: no Shell menu item in single-process mode.
+
+..
+
+.. date: 2025-03-28-18-25-43
+.. gh-issue: 107006
+.. nonce: BxFijD
+.. section: Documentation
+
+Move documentation and example code for :class:`threading.local` from its
+docstring to the official docs.
+
+..
+
+.. date: 2024-10-08-10-44-14
+.. gh-issue: 125142
+.. nonce: HVlHrs
+.. section: Documentation
+
+As part of the builtin help intro text, show the keyboard shortcuts for the
+new, non-basic REPL (F1, F2, and F3).
+
+..
+
+.. date: 2025-05-05-15-33-35
+.. gh-issue: 133336
+.. nonce: miffFi
+.. section: Core and Builtins
+
+:option:`!-J` is no longer reserved for use by Jython. Patch by Adam Turner.
+
+..
+
+.. date: 2025-05-05-12-03-46
+.. gh-issue: 133261
+.. nonce: bL1gqz
+.. section: Core and Builtins
+
+Fix bug where the cycle GC could untrack objects in the trashcan because
+they looked like they were immortal. When objects are added to the trashcan,
+we take care to ensure they keep a mortal reference count.
+
+..
+
+.. date: 2025-05-04-19-46-14
+.. gh-issue: 133346
+.. nonce: nRXi4f
+.. section: Core and Builtins
+
+Added experimental color theming support to the ``_colorize`` module.
+
+..
+
+.. date: 2025-05-04-14-47-26
+.. gh-issue: 132917
+.. nonce: DrEU1y
+.. section: Core and Builtins
+
+For the free-threaded build, check the process memory usage increase before
+triggering a full automatic garbage collection. If the memory used has not
+increased 10% since the last collection then defer it.
+
+..
+
+.. date: 2025-05-03-19-04-03
+.. gh-issue: 91048
+.. nonce: S8QWSw
+.. section: Core and Builtins
+
+Add a new ``python -m asyncio ps PID`` command-line interface to inspect
+asyncio tasks in a running Python process. Displays a flat table of await
+relationships. A variant showing a tree view is also available as ``python
+-m asyncio pstree PID``. Both are useful for debugging async code. Patch by
+Pablo Galindo, Łukasz Langa, Yury Selivanov, and Marta Gomez Macias.
+
+..
+
+.. date: 2025-05-03-07-41-21
+.. gh-issue: 133304
+.. nonce: YMuSne
+.. section: Core and Builtins
+
+Workaround NaN's "canonicalization" in :c:func:`PyFloat_Pack4` and
+:c:func:`PyFloat_Unpack4` on RISC-V.
+
+..
+
+.. date: 2025-05-01-11-06-29
+.. gh-issue: 133197
+.. nonce: BHjfh4
+.. section: Core and Builtins
+
+Improve :exc:`SyntaxError` error messages for incompatible string / bytes
+prefixes.
+
+..
+
+.. date: 2025-04-30-19-07-11
+.. gh-issue: 133231
+.. nonce: H9T8g_
+.. section: Core and Builtins
+
+Add new utilities of observing JIT compilation:
+:func:`sys._jit.is_available`, :func:`sys._jit.is_enabled`, and
+:func:`sys._jit.is_active`.
+
+..
+
+.. date: 2025-04-30-13-09-20
+.. gh-issue: 133194
+.. nonce: 25_G5c
+.. section: Core and Builtins
+
+:func:`ast.parse` will no longer parse new :pep:`758` syntax with older
+*feature_version* passed.
+
+..
+
+.. date: 2025-04-30-00-21-54
+.. gh-issue: 131798
+.. nonce: D6T5_u
+.. section: Core and Builtins
+
+Split ``CALL_LEN`` into several uops allowing the JIT to remove them when
+optimizing. Patch by Diego Russo.
+
+..
+
+.. date: 2025-04-26-18-43-31
+.. gh-issue: 131798
+.. nonce: FsIypo
+.. section: Core and Builtins
+
+Use ``sym_new_type`` instead of ``sym_new_not_null`` for _BUILD_STRING,
+_BUILD_SET
+
+..
+
+.. date: 2025-04-26-17-50-47
+.. gh-issue: 132942
+.. nonce: aEEZvZ
+.. section: Core and Builtins
+
+Fix two races in the type lookup cache. This affected the free-threaded
+build and could cause crashes (apparently quite difficult to trigger).
+
+..
+
+.. date: 2025-04-26-13-57-13
+.. gh-issue: 131798
+.. nonce: Gt8CGE
+.. section: Core and Builtins
+
+Propagate the return type of ``_BINARY_OP_SUBSCR_TUPLE_INT`` in JIT. Patch
+by Tomas Roun
+
+..
+
+.. date: 2025-04-26-08-49-05
+.. gh-issue: 132952
+.. nonce: ifvP10
+.. section: Core and Builtins
+
+Speed up startup with the ``-S`` argument by importing the private ``_io``
+module instead of :mod:`io`. This fixes a performance regression introduced
+earlier in Python 3.14 development and restores performance to the level of
+Python 3.13.
+
+..
+
+.. date: 2025-04-25-14-56-45
+.. gh-issue: 131798
+.. nonce: NpcKub
+.. section: Core and Builtins
+
+Allow the JIT to remove int guards after ``_CALL_LEN`` by setting the return
+type to int. Patch by Diego Russo
+
+..
+
+.. date: 2025-04-23-20-54-17
+.. gh-issue: 131798
+.. nonce: XYlp09
+.. section: Core and Builtins
+
+Split ``CALL_TUPLE_1`` into several uops allowing the JIT to remove some of
+them. Patch by Tomas Roun
+
+..
+
+.. date: 2025-04-23-20-42-55
+.. gh-issue: 131798
+.. nonce: wVQ1Gt
+.. section: Core and Builtins
+
+Split ``CALL_STR_1`` into several uops allowing the JIT to remove some of
+them. Patch by Tomas Roun
+
+..
+
+.. date: 2025-04-23-11-34-39
+.. gh-issue: 132825
+.. nonce: _yv0uL
+.. section: Core and Builtins
+
+Enhance unhashable key/element error messages for :class:`dict` and
+:class:`set`. Patch by Victor Stinner.
+
+..
+
+.. date: 2025-04-22-19-00-03
+.. gh-issue: 131591
+.. nonce: CdEqBr
+.. section: Core and Builtins
+
+Reset any :pep:`768` remote debugging pending call in children after
+:func:`os.fork` calls.
+
+..
+
+.. date: 2025-04-22-16-38-43
+.. gh-issue: 132713
+.. nonce: mBWTSZ
+.. section: Core and Builtins
+
+Fix ``repr(list)`` race condition: hold a strong reference to the item while
+calling ``repr(item)``. Patch by Victor Stinner.
+
+..
+
+.. date: 2025-04-22-15-37-05
+.. gh-issue: 132661
+.. nonce: XE_A42
+.. section: Core and Builtins
+
+Implement :pep:`750` (Template Strings). Add new syntax for t-strings and
+implement new internal :class:`!string.templatelib.Template` and
+:class:`!string.templatelib.Interpolation` types.
+
+..
+
+.. date: 2025-04-21-09-22-15
+.. gh-issue: 132479
+.. nonce: CCe2sE
+.. section: Core and Builtins
+
+Fix compiler crash in certain circumstances where multiple module-level
+annotations include comprehensions and other nested scopes.
+
+..
+
+.. date: 2025-04-21-07-39-59
+.. gh-issue: 132747
+.. nonce: L-cnej
+.. section: Core and Builtins
+
+Fix a crash when calling :meth:`~object.__get__` of a :term:`method` with a
+:const:`None` second argument.
+
+..
+
+.. date: 2025-04-20-10-37-39
+.. gh-issue: 132744
+.. nonce: ArrCp8
+.. section: Core and Builtins
+
+Certain calls now check for runaway recursion and respect the system
+recursion limit.
+
+..
+
+.. date: 2025-04-19-22-59-24
+.. gh-issue: 132449
+.. nonce: xjdw4p
+.. section: Core and Builtins
+
+Syntax errors that look like misspellings of Python keywords now provide a
+helpful fix suggestion for the typo. Contributed by Pablo Galindo Salgado.
+
+..
+
+.. date: 2025-04-19-18-07-34
+.. gh-issue: 132737
+.. nonce: 9mW1il
+.. section: Core and Builtins
+
+Support profiling code that requires ``__main__``, such as :mod:`pickle`.
+
+..
+
+.. date: 2025-04-17-16-20-03
+.. gh-issue: 132639
+.. nonce: zRVYU3
+.. section: Core and Builtins
+
+Added :c:func:`PyLong_AsNativeBytes`, :c:func:`PyLong_FromNativeBytes` and
+:c:func:`PyLong_FromUnsignedNativeBytes` to the limited C API.
+
+..
+
+.. date: 2025-04-17-11-40-13
+.. gh-issue: 100239
+.. nonce: 9RxIxY
+.. section: Core and Builtins
+
+Add specialisation for ``BINARY_OP/SUBSCR`` on list and slice.
+
+..
+
+.. date: 2025-04-15-10-09-49
+.. gh-issue: 132508
+.. nonce: zVe3iI
+.. section: Core and Builtins
+
+Uses tagged integers on the evaluation stack to represent the instruction
+offsets when reraising an exception. This avoids the need to box the integer
+which could fail in low memory conditions.
+
+..
+
+.. date: 2025-04-13-17-18-01
+.. gh-issue: 124476
+.. nonce: fvGfQ7
+.. section: Core and Builtins
+
+Fix decoding from the locale encoding in the C.UTF-8 locale.
+
+..
+
+.. date: 2025-04-13-10-34-27
+.. gh-issue: 131927
+.. nonce: otp80n
+.. section: Core and Builtins
+
+Compiler warnings originating from the same module and line number are now
+only emitted once, matching the behaviour of warnings emitted from user
+code. This can also be configured with :mod:`warnings` filters.
+
+..
+
+.. date: 2025-04-13-01-50-40
+.. gh-issue: 132457
+.. nonce: 1q-1xz
+.. section: Core and Builtins
+
+Make :func:`staticmethod` and :func:`classmethod` generic.
+
+..
+
+.. date: 2025-04-12-19-41-16
+.. gh-issue: 131798
+.. nonce: JkSocg
+.. section: Core and Builtins
+
+Use ``sym_new_type`` instead of ``sym_new_not_null`` for _BUILD_LIST,
+_BUILD_SET, _BUILD_MAP
+
+..
+
+.. date: 2025-04-11-22-01-07
+.. gh-issue: 131798
+.. nonce: TTu_xH
+.. section: Core and Builtins
+
+Split ``CALL_TYPE_1`` into several uops allowing the JIT to remove some of
+them.
+
+..
+
+.. date: 2025-04-11-18-46-37
+.. gh-issue: 132386
+.. nonce: pMBFTe
+.. section: Core and Builtins
+
+Fix crash when passing a dict subclass as the ``globals`` parameter to
+:func:`exec`.
+
+..
+
+.. date: 2025-04-10-10-29-45
+.. gh-issue: 127682
+.. nonce: X0HoGz
+.. section: Core and Builtins
+
+No longer call ``__iter__`` twice when creating and executing a generator
+expression. Creating a generator expression from a non-interable will raise
+only when the generator expression is executed. This brings the behavior of
+generator expressions in line with other generators.
+
+..
+
+.. date: 2025-04-09-21-51-37
+.. gh-issue: 132261
+.. nonce: gL8thm
+.. section: Core and Builtins
+
+The internal storage for annotations and annotate functions on classes now
+uses different keys in the class dictionary. This eliminates various edge
+cases where access to the ``__annotate__`` and ``__annotations__``
+attributes would behave unpredictably.
+
+..
+
+.. date: 2025-04-09-20-49-04
+.. gh-issue: 132284
+.. nonce: TxTNka
+.. section: Core and Builtins
+
+Don't wrap base ``PyCFunction`` slots on class creation if not overridden.
+
+..
+
+.. date: 2025-04-09-14-05-54
+.. gh-issue: 130415
+.. nonce: llQtUq
+.. section: Core and Builtins
+
+Improve the JIT's ability to remove unused constant and local variable
+loads, and fix an issue where deallocating unused values could cause JIT
+code to crash or behave incorrectly.
+
+..
+
+.. date: 2025-04-09-13-47-33
+.. gh-issue: 126703
+.. nonce: kXiQHj
+.. section: Core and Builtins
+
+Fix possible use after free in cases where a method's definition has the
+same lifetime as its ``self``.
+
+..
+
+.. date: 2025-04-09-12-37-31
+.. gh-issue: 132286
+.. nonce: 1ZdsOa
+.. section: Core and Builtins
+
+Fix that :attr:`type.__annotate__` was not deleted, when
+:attr:`type.__annotations__` was deleted.
+
+..
+
+.. date: 2025-04-08-21-20-12
+.. gh-issue: 131798
+.. nonce: Ft9tIF
+.. section: Core and Builtins
+
+Allow the JIT to remove an extra ``_TO_BOOL_BOOL`` instruction after
+``_CONTAINS_OP_DICT`` by setting the return type to bool.
+
+..
+
+.. date: 2025-04-08-17-48-11
+.. gh-issue: 124715
+.. nonce: xxzQoD
+.. section: Core and Builtins
+
+Prevents against stack overflows when calling :c:func:`Py_DECREF`.
+Third-party extension objects no longer need to use the "trashcan"
+mechanism, as protection is now built into the :c:func:`Py_DECREF` macro.
+
+..
+
+.. date: 2025-04-08-09-20-18
+.. gh-issue: 131798
+.. nonce: Xp1mvN
+.. section: Core and Builtins
+
+Allow the JIT compiler to remove some type checks for operations on lists,
+tuples, dictionaries, and sets.
+
+..
+
+.. date: 2025-04-07-13-46-57
+.. gh-issue: 128398
+.. nonce: gJ2zIF
+.. section: Core and Builtins
+
+Improve error message when an object supporting the synchronous (resp.
+asynchronous) context manager protocol is entered using :keyword:`async
+with` (resp. :keyword:`with`) instead of :keyword:`with` (resp.
+:keyword:`async with`). Patch by Bénédikt Tran.
+
+..
+
+.. date: 2025-04-06-13-17-10
+.. gh-issue: 131798
+.. nonce: uMrfha
+.. section: Core and Builtins
+
+Allow the JIT to remove unicode guards after ``_BINARY_OP_SUBSCR_STR_INT``
+by setting the return type to string.
+
+..
+
+.. date: 2025-03-30-19-58-14
+.. gh-issue: 131878
+.. nonce: uxM26H
+.. section: Core and Builtins
+
+Handle uncaught exceptions in the main input loop for the new REPL.
+
+..
+
+.. date: 2025-03-30-19-49-00
+.. gh-issue: 131878
+.. nonce: J8_cHB
+.. section: Core and Builtins
+
+Fix support of unicode characters with two or more codepoints on Windows in
+the new REPL.
+
+..
+
+.. date: 2025-03-28-15-06-55
+.. gh-issue: 126835
+.. nonce: IpcMTn
+.. section: Core and Builtins
+
+Move constant folding to the peephole optimizer. Rename AST optimization
+related files (Python/ast_opt.c -> Python/ast_preprocess.c), structs
+(_PyASTOptimizeState -> _PyASTPreprocessState) and functions
+(_PyAST_Optimize -> _PyAST_Preprocess, _PyCompile_AstOptimize ->
+_PyCompile_AstPreprocess).
+
+..
+
+.. date: 2025-03-26-04-55-25
+.. gh-issue: 114809
+.. nonce: 8rNyT7
+.. section: Core and Builtins
+
+Add support for macOS multi-arch builds with the JIT enabled
+
+..
+
+.. date: 2025-03-21-19-03-42
+.. gh-issue: 131507
+.. nonce: q9fvyM
+.. section: Core and Builtins
+
+PyREPL now supports syntax highlighing. Contributed by Łukasz Langa.
+
+..
+
+.. date: 2025-03-21-08-47-36
+.. gh-issue: 130907
+.. nonce: rGg-ge
+.. section: Core and Builtins
+
+If the ``__annotations__`` of a module object are accessed while the module
+is executing, return the annotations that have been defined so far, without
+caching them.
+
+..
+
+.. date: 2025-02-18-11-42-58
+.. gh-issue: 130104
+.. nonce: BOicVZ
+.. section: Core and Builtins
+
+Three-argument :func:`pow` now try calling :meth:`~object.__rpow__` if
+necessary. Previously it was only called in two-argument :func:`!pow` and
+the binary power operator.
+
+..
+
+.. date: 2025-02-13-05-09-31
+.. gh-issue: 130070
+.. nonce: C8c9gK
+.. section: Core and Builtins
+
+Fixed an assertion error for :func:`exec` passed a string ``source`` and a
+non-``None`` ``closure``. Patch by Bartosz Sławecki.
+
+..
+
+.. date: 2025-02-13-00-14-24
+.. gh-issue: 129958
+.. nonce: Uj7lyY
+.. section: Core and Builtins
+
+Fix a bug that was allowing newlines inconsitently in format specifiers for
+single-quoted f-strings. Patch by Pablo Galindo.
+
+..
+
+.. date: 2025-02-12-01-36-13
+.. gh-issue: 129858
+.. nonce: M-f7Gb
+.. section: Core and Builtins
+
+``elif`` statements that follow an ``else`` block now have a specific error
+message.
+
+..
+
+.. date: 2025-01-26-23-46-43
+.. gh-issue: 69605
+.. nonce: _2Qc1w
+.. section: Core and Builtins
+
+Add module autocomplete to PyREPL.
+
+..
+
+.. date: 2025-01-06-10-55-41
+.. gh-issue: 128555
+.. nonce: tAK_AY
+.. section: Core and Builtins
+
+Add the :data:`sys.flags.thread_inherit_context` flag.
+
+* This flag is set to true by default on the free-threaded build
+ and false otherwise. If the flag is true, starting a new thread using
+ :class:`threading.Thread` will, by default, use a copy of the
+ :class:`contextvars.Context` from the caller of
+ :meth:`threading.Thread.start` rather than using an empty context.
+
+* Add the :option:`-X thread_inherit_context <-X>` command-line option and
+ :envvar:`PYTHON_THREAD_INHERIT_CONTEXT` environment variable, which set the
+ :data:`~sys.flags.thread_inherit_context` flag.
+
+* Add the ``context`` keyword parameter to :class:`~threading.Thread`. It can
+ be used to explicitly pass a context value to be used by a new thread.
+
+* Make the ``_contextvars`` module built-in.
+
+..
+
+.. date: 2024-09-03-15-15-51
+.. gh-issue: 123539
+.. nonce: RKQS0S
+.. section: Core and Builtins
+
+Improve :exc:`SyntaxError` message for using ``import ... as`` and ``from
+... import ... as`` with not a name.
+
+..
+
+.. date: 2024-07-11-12-31-29
+.. gh-issue: 102567
+.. nonce: weRqDn
+.. section: Core and Builtins
+
+:option:`-X importtime <-X>` now accepts value ``2``, which indicates that
+an ``importtime`` entry should also be printed if an imported module has
+already been loaded. Patch by Noah Kim and Adam Turner.
+
+..
+
+.. date: 2024-03-06-22-33-33
+.. gh-issue: 116436
+.. nonce: y8Thkt
+.. section: Core and Builtins
+
+Improve error message when :exc:`TypeError` occurs during
+:meth:`dict.update`
+
+..
+
+.. date: 2023-04-29-23-15-38
+.. gh-issue: 103997
+.. nonce: BS3uVt
+.. section: Core and Builtins
+
+String arguments passed to "-c" are now automatically dedented as if by
+:func:`textwrap.dedent`. This allows "python -c" invocations to be indented
+in shell scripts without causing indentation errors. (Patch by Jon Crall and
+Steven Sun)
+
+..
+
+.. date: 2022-12-29-19-10-36
+.. gh-issue: 89562
+.. nonce: g8m8RC
+.. section: Core and Builtins
+
+Remove ``hostflags`` member from ``PySSLContext`` struct.
+
+..
+
+.. date: 2025-05-01-01-02-11
+.. gh-issue: 133166
+.. nonce: Ly9Ae2
+.. section: C API
+
+Fix regression where :c:func:`PyType_GetModuleByDef` returns NULL without
+setting :exc:`TypeError` when a static type is passed.
+
+..
+
+.. date: 2025-04-29-19-39-16
+.. gh-issue: 133164
+.. nonce: W-XTU7
+.. section: C API
+
+Add :c:func:`PyUnstable_Object_IsUniqueReferencedTemporary` function for
+determining if an object exists as a unique temporary variable on the
+interpreter's stack. This is a replacement for some cases where checking
+that :c:func:`Py_REFCNT` is one is no longer sufficient to determine if it's
+safe to modify a Python object in-place with no visible side effects.
+
+..
+
+.. date: 2025-04-29-06-27-46
+.. gh-issue: 133140
+.. nonce: IPGGc3
+.. section: C API
+
+Add :c:func:`PyUnstable_Object_IsUniquelyReferenced` as a replacement for
+``Py_REFNCT(op) == 1`` on :term:`free threaded <free threading>` builds of
+Python.
+
+..
+
+.. date: 2025-04-28-18-26-37
+.. gh-issue: 131747
+.. nonce: 2AiQ9n
+.. section: C API
+
+On non-Windows platforms, deprecate using :attr:`ctypes.Structure._pack_` to
+use a Windows-compatible layout on non-Windows platforms. The layout should
+be specified explicitly by setting :attr:`ctypes.Structure._layout_` to
+``'ms'``.
+
+..
+
+.. date: 2025-04-28-15-36-01
+.. gh-issue: 128972
+.. nonce: 8bZMIm
+.. section: C API
+
+For non-free-threaded builds, the memory layout of :c:struct:`PyASCIIObject`
+is reverted to match Python 3.13. (Note that the structure is not part of
+stable ABI and so its memory layout is *guaranteed* to remain stable.)
+
+..
+
+.. date: 2025-04-28-13-27-48
+.. gh-issue: 133079
+.. nonce: DJL2sK
+.. section: C API
+
+The undocumented APIs :c:macro:`!Py_C_RECURSION_LIMIT` and
+:c:member:`!PyThreadState.c_recursion_remaining`, added in 3.13, are removed
+without a deprecation period.
+
+..
+
+.. date: 2025-04-26-12-00-52
+.. gh-issue: 132987
+.. nonce: vykZGN
+.. section: C API
+
+The ``k`` and ``K`` formats in :c:func:`PyArg_Parse` now support the
+:meth:`~object.__index__` special method, like all other integer formats.
+
+..
+
+.. date: 2025-04-25-11-39-24
+.. gh-issue: 132909
+.. nonce: JC3n_l
+.. section: C API
+
+Fix an overflow when handling the :ref:`K <capi-py-buildvalue-format-K>`
+format in :c:func:`Py_BuildValue`. Patch by Bénédikt Tran.
+
+..
+
+.. date: 2025-04-22-13-59-30
+.. gh-issue: 132798
+.. nonce: asfafhs
+.. section: C API
+
+Deprecated and undocumented functions :c:func:`!PyUnicode_AsEncodedObject`,
+:c:func:`!PyUnicode_AsDecodedObject`, :c:func:`!PyUnicode_AsEncodedUnicode`
+and :c:func:`!PyUnicode_AsDecodedUnicode` are scheduled for removal in 3.15.
+
+..
+
+.. date: 2025-04-13-20-52-39
+.. gh-issue: 132470
+.. nonce: UqBQjN
+.. section: C API
+
+Creating a :class:`ctypes.CField` with a *byte_size* that does not match the
+actual type size now raises a :exc:`ValueError` instead of crashing the
+interpreter.
+
+..
+
+.. date: 2025-01-08-18-55-57
+.. gh-issue: 112068
+.. nonce: ofI5Fl
+.. section: C API
+
+Add support of nullable arguments in :c:func:`PyArg_Parse` and similar
+functions. Adding ``?`` after any format unit makes ``None`` be accepted as
+a value.
+
+..
+
+.. date: 2024-12-31-15-28-14
+.. gh-issue: 50333
+.. nonce: KxQUXa
+.. section: C API
+
+Non-tuple sequences are deprecated as argument for the ``(items)`` format
+unit in :c:func:`PyArg_ParseTuple` and other :ref:`argument parsing
+<arg-parsing>` functions if *items* contains format units which store a
+:ref:`borrowed buffer <c-arg-borrowed-buffer>` or a :term:`borrowed
+reference`.
+
+..
+
+.. date: 2025-05-01-17-27-06
+.. gh-issue: 113464
+.. nonce: vjE5X4
+.. section: Build
+
+Use the cpython-bin-deps "externals" repository for Windows LLVM dependency
+management. Installing LLVM manually is no longer necessary for Windows JIT
+builds.
+
+..
+
+.. date: 2025-04-30-11-07-53
+.. gh-issue: 133183
+.. nonce: zCKUeQ
+.. section: Build
+
+iOS compiler shims now include ``IPHONEOS_DEPLOYMENT_TARGET`` in target
+triples, ensuring that SDK version minimums are honored.
+
+..
+
+.. date: 2025-04-30-10-23-18
+.. gh-issue: 133167
+.. nonce: E0jrYJ
+.. section: Build
+
+Fix compilation process with ``--enable-optimizations`` and
+``--without-docstrings``.
+
+..
+
+.. date: 2025-04-29-15-29-11
+.. gh-issue: 133171
+.. nonce: YbwbwP
+.. section: Build
+
+Since free-threaded builds do not support the experimental JIT compiler,
+prevent these configurations from being combined.
+
+..
+
+.. date: 2025-04-20-20-07-44
+.. gh-issue: 132758
+.. nonce: N2a3wp
+.. section: Build
+
+Fix building with tail call interpreter and pystats.
+
+..
+
+.. date: 2025-04-17-19-10-15
+.. gh-issue: 132649
+.. nonce: DZqGoq
+.. section: Build
+
+The :file:`PC\layout` script now allows passing ``--include-tcltk`` on
+Windows ARM64.
+
+..
+
+.. date: 2025-04-08-09-11-32
+.. gh-issue: 132257
+.. nonce: oZWBV-
+.. section: Build
+
+Change the default LTO flags on GCC to not pass ``-flto-partition=none``,
+and allow parallelization of LTO. For newer GNU makes and GCC, this has a
+multiple factor speedup for LTO build times, with no noticeable loss in
+performance.
+
+..
+
+.. date: 2025-04-02-21-08-36
+.. gh-issue: 132026
+.. nonce: ptnR7T
+.. section: Build
+
+Fix use of undefined identifiers in platform triplet detection on MIPS Linux
+platforms.
projects / thirdparty / Python / cpython.git / commitdiff
