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diff --git a/Misc/NEWS.d/3.13.0b2.rst b/Misc/NEWS.d/3.13.0b2.rst new file mode 100644 index 0000000..1b31fd5 --- /dev/null +++ b/Misc/NEWS.d/3.13.0b2.rst @@ -0,0 +1,805 @@ +.. date: 2024-05-08-21-59-38 +.. gh-issue: 118773 +.. nonce: 7dFRJY +.. release date: 2024-06-05 +.. section: Security + +Fixes creation of ACLs in :func:`os.mkdir` on Windows to work correctly on +non-English machines. + +.. + +.. date: 2024-05-01-20-57-09 +.. gh-issue: 118486 +.. nonce: K44KJG +.. section: Security + +:func:`os.mkdir` on Windows now accepts *mode* of ``0o700`` to restrict the +new directory to the current user. This fixes :cve:`2024-4030` affecting +:func:`tempfile.mkdtemp` in scenarios where the base temporary directory is +more permissive than the default. + +.. + +.. date: 2024-06-03-13-25-04 +.. gh-issue: 119724 +.. nonce: EH1dkA +.. section: Core and Builtins + +Reverted improvements to error messages for ``elif``/``else`` statements not +matching any valid statements, which made in hard to locate the syntax +errors inside those ``elif``/``else`` blocks. + +.. + +.. date: 2024-05-31-12-06-11 +.. gh-issue: 119842 +.. nonce: tCGVsv +.. section: Core and Builtins + +Honor :c:func:`PyOS_InputHook` in the new REPL. Patch by Pablo Galindo + +.. + +.. date: 2024-05-30-23-01-00 +.. gh-issue: 119821 +.. nonce: jPGfvt +.. section: Core and Builtins + +Fix execution of :ref:`annotation scopes <annotation-scopes>` within classes +when ``globals`` is set to a non-dict. Patch by Jelle Zijlstra. + +.. + +.. date: 2024-05-25-16-45-27 +.. gh-issue: 119548 +.. nonce: pqF9Y6 +.. section: Core and Builtins + +Add a ``clear`` command to the REPL. Patch by Pablo Galindo + +.. + +.. date: 2024-05-25-13-51-48 +.. gh-issue: 111999 +.. nonce: L0q1gh +.. section: Core and Builtins + +Fix the signature of :meth:`str.format_map`. + +.. + +.. date: 2024-05-25-12-52-25 +.. gh-issue: 119560 +.. nonce: wSlm8q +.. section: Core and Builtins + +An invalid assert in beta 1 has been removed. The assert would fail if +``PyState_FindModule()`` was used in an extension module's init function +before the module def had been initialized. + +.. + +.. date: 2024-05-24-21-16-52 +.. gh-issue: 119369 +.. nonce: qBThho +.. section: Core and Builtins + +Fix deadlock during thread deletion in free-threaded build, which could +occur when the GIL was enabled at runtime. + +.. + +.. date: 2024-05-24-21-04-00 +.. gh-issue: 119525 +.. nonce: zLFLf1 +.. section: Core and Builtins + +Fix deadlock involving ``_PyType_Lookup()`` cache in the free-threaded build +when the GIL is dynamically enabled at runtime. + +.. + +.. date: 2024-05-23-06-34-45 +.. gh-issue: 119311 +.. nonce: 2DBwKR +.. section: Core and Builtins + +Fix bug where names are unexpectedly mangled in the bases of generic +classes. + +.. + +.. date: 2024-05-23-06-34-14 +.. gh-issue: 119395 +.. nonce: z-Hsqb +.. section: Core and Builtins + +Fix bug where names appearing after a generic class are mangled as if they +are in the generic class. + +.. + +.. date: 2024-05-21-11-27-14 +.. gh-issue: 119213 +.. nonce: nxjxrt +.. section: Core and Builtins + +Non-builtin modules built with argument clinic were crashing if used in a +subinterpreter before the main interpreter. The objects that were causing +the problem by leaking between interpreters carelessly have been fixed. + +.. + +.. date: 2024-05-21-09-46-51 +.. gh-issue: 119011 +.. nonce: WOe3bu +.. section: Core and Builtins + +Fixes ``type.__type_params__`` to return an empty tuple instead of a +descriptor. + +.. + +.. date: 2024-05-20-14-57-39 +.. gh-issue: 118692 +.. nonce: Qadm7F +.. section: Core and Builtins + +Avoid creating unnecessary :exc:`StopIteration` instances for monitoring. + +.. + +.. date: 2024-05-16-23-02-03 +.. gh-issue: 119049 +.. nonce: qpd_S- +.. section: Core and Builtins + +Fix displaying the source line for warnings created by the C API if the +:mod:`warnings` module had not yet been imported. + +.. + +.. date: 2024-05-11-21-44-17 +.. gh-issue: 118844 +.. nonce: q2H_km +.. section: Core and Builtins + +Fix build failures when configuring with both ``--disable-gil`` and +``--enable-experimental-jit``. + +.. + +.. date: 2024-05-10-19-54-18 +.. gh-issue: 118921 +.. nonce: O4ztZG +.. section: Core and Builtins + +Add ``copy()`` method for ``FrameLocalsProxy`` which returns a snapshot +``dict`` for local variables. + +.. + +.. date: 2024-05-09-19-47-12 +.. gh-issue: 117657 +.. nonce: Vn0Yey +.. section: Core and Builtins + +Fix data races on the field that stores a pointer to the interpreter's main +thread that occur in free-threaded builds. + +.. + +.. date: 2024-05-08-18-33-07 +.. gh-issue: 118507 +.. nonce: OCQsAY +.. section: Core and Builtins + +Speedup :func:`os.path.isjunction` and :func:`os.path.lexists` on Windows +with a native implementation. + +.. + +.. date: 2024-05-07-16-57-56 +.. gh-issue: 118561 +.. nonce: wNMKVd +.. section: Core and Builtins + +Fix race condition in free-threaded build where :meth:`!list.extend` could +expose uninitialised memory to concurrent readers. + +.. + +.. date: 2024-04-28-19-51-00 +.. gh-issue: 118263 +.. nonce: Gaap3S +.. section: Core and Builtins + +Speed up :func:`os.path.splitroot` & :func:`os.path.normpath` with a direct +C call. + +.. + +.. date: 2024-03-25-15-07-01 +.. gh-issue: 117195 +.. nonce: OWakgD +.. section: Core and Builtins + +Avoid assertion failure for debug builds when calling +``object.__sizeof__(1)`` + +.. + +.. date: 2024-06-04-12-23-01 +.. gh-issue: 119819 +.. nonce: WKKrYh +.. section: Library + +Fix regression to allow logging configuration with multiprocessing queue +types. + +.. + +.. date: 2024-06-03-11-18-16 +.. gh-issue: 117142 +.. nonce: kWTXQo +.. section: Library + +The :mod:`ctypes` module may now be imported in all subinterpreters, +including those that have their own GIL. + +.. + +.. date: 2024-06-02-15-09-17 +.. gh-issue: 118835 +.. nonce: KUAuz6 +.. section: Library + +Fix _pyrepl crash when using custom prompt with ANSI escape codes. + +.. + +.. date: 2024-06-01-16-58-43 +.. gh-issue: 117398 +.. nonce: kR0RW7 +.. section: Library + +The ``_datetime`` module (C implementation for :mod:`datetime`) now supports +being imported in multiple interpreters. + +.. + +.. date: 2024-05-30-21-37-05 +.. gh-issue: 89727 +.. nonce: D6S9ig +.. section: Library + +Fix issue with :func:`shutil.rmtree` where a :exc:`RecursionError` is raised +on deep directory trees. + +.. + +.. date: 2024-05-29-20-42-17 +.. gh-issue: 89727 +.. nonce: 5lPTTW +.. section: Library + +Partially fix issue with :func:`shutil.rmtree` where a :exc:`RecursionError` +is raised on deep directory trees. A recursion error is no longer raised +when :data:`!rmtree.avoids_symlink_attacks` is false. + +.. + +.. date: 2024-05-28-12-15-03 +.. gh-issue: 119118 +.. nonce: FMKz1F +.. section: Library + +Fix performance regression in the :mod:`tokenize` module by caching the +``line`` token attribute and calculating the column offset more efficiently. + +.. + +.. date: 2024-05-28-00-56-59 +.. gh-issue: 89727 +.. nonce: _bxoL3 +.. section: Library + +Fix issue with :func:`os.fwalk` where a :exc:`RecursionError` was raised on +deep directory trees by adjusting the implementation to be iterative instead +of recursive. + +.. + +.. date: 2024-05-26-21-28-11 +.. gh-issue: 119588 +.. nonce: wlLBK5 +.. section: Library + +``zipfile.Path.is_symlink`` now assesses if the given path is a symlink. + +.. + +.. date: 2024-05-25-20-15-26 +.. gh-issue: 119555 +.. nonce: mvHbEL +.. section: Library + +Catch :exc:`SyntaxError` from :func:`compile` in the runsource() method of +the InteractiveColoredConsole. Patch by Sergey B Kirpichev. + +.. + +.. date: 2024-05-24-21-54-55 +.. gh-issue: 113892 +.. nonce: JKDFqq +.. section: Library + +Now, the method ``sock_connect`` of :class:`asyncio.ProactorEventLoop` +raises a :exc:`ValueError` if given socket is not in non-blocking mode, as +well as in other loop implementations. + +.. + +.. date: 2024-05-23-22-29-59 +.. gh-issue: 119443 +.. nonce: KAGz6S +.. section: Library + +The interactive REPL no longer runs with ``from __future__ import +annotations`` enabled. Patch by Jelle Zijlstra. + +.. + +.. date: 2024-05-23-11-52-36 +.. gh-issue: 117398 +.. nonce: 2FG1Mk +.. section: Library + +Objects in the datetime C-API are now all statically allocated, which means +better memory safety, especially when the module is reloaded. This should be +transparent to users. + +.. + +.. date: 2024-05-22-21-20-43 +.. gh-issue: 118894 +.. nonce: xHdxR_ +.. section: Library + +:mod:`asyncio` REPL now has the same capabilities as PyREPL. + +.. + +.. date: 2024-05-21-20-13-23 +.. gh-issue: 118911 +.. nonce: iG8nMq +.. section: Library + +In PyREPL, updated ``maybe-accept``'s logic so that if the user hits +:kbd:`Enter` twice, they are able to terminate the block even if there's +trailing whitespace. Also, now when the user hits arrow up, the cursor is on +the last functional line. This matches IPython's behavior. Patch by Aya +Elsayed. + +.. + +.. date: 2024-05-20-20-30-57 +.. gh-issue: 111201 +.. nonce: DAA5lC +.. section: Library + +Remove dependency to :mod:`readline` from the new Python REPL. + +.. + +.. date: 2024-05-19-18-49-04 +.. gh-issue: 119174 +.. nonce: 5GTv7d +.. section: Library + +Fix high DPI causes turtledemo(turtle-graphics examples) windows blurry +Patch by Wulian233 and Terry Jan Reedy + +.. + +.. date: 2024-05-19-13-05-59 +.. gh-issue: 119121 +.. nonce: P1gnh1 +.. section: Library + +Fix a NameError happening in ``asyncio.staggered.staggered_race``. This +function is now tested. + +.. + +.. date: 2024-05-17-17-32-12 +.. gh-issue: 119113 +.. nonce: kEv1Ll +.. section: Library + +Fix issue where :meth:`pathlib.PurePath.with_suffix` didn't raise +:exc:`TypeError` when given ``None`` as a suffix. + +.. + +.. date: 2024-05-16-17-31-46 +.. gh-issue: 118643 +.. nonce: hAWH4C +.. section: Library + +Fix an AttributeError in the :mod:`email` module when re-fold a long address +list. Also fix more cases of incorrect encoding of the address separator in +the address list. + +.. + +.. date: 2024-05-12-21-38-42 +.. gh-issue: 58933 +.. nonce: 0kgU2l +.. section: Library + +Make :mod:`pdb` return to caller frame correctly when ``f_trace`` of the +caller frame is not set + +.. + +.. date: 2024-05-10-05-24-32 +.. gh-issue: 118895 +.. nonce: wUm5r2 +.. section: Library + +Setting attributes on :data:`typing.NoDefault` now raises +:exc:`AttributeError` instead of :exc:`TypeError`. + +.. + +.. date: 2024-05-09-21-36-11 +.. gh-issue: 118868 +.. nonce: uckxxP +.. section: Library + +Fixed issue where kwargs were no longer passed to the logging handler +QueueHandler + +.. + +.. date: 2024-05-09-08-46-12 +.. gh-issue: 118851 +.. nonce: aPAoJw +.. section: Library + +``ctx`` arguments to the constructors of :mod:`ast` node classes now default +to :class:`ast.Load() <ast.Load>`. Patch by Jelle Zijlstra. + +.. + +.. date: 2024-05-08-21-30-33 +.. gh-issue: 118760 +.. nonce: XvyMHn +.. section: Library + +Restore the default value of ``tkiter.wantobjects`` to ``1``. + +.. + +.. date: 2024-05-08-21-13-56 +.. gh-issue: 118760 +.. nonce: mdmH3T +.. section: Library + +Fix errors in calling Tkinter bindings on Windows. + +.. + +.. date: 2024-05-08-09-21-49 +.. gh-issue: 118772 +.. nonce: c16E8X +.. section: Library + +Allow :class:`typing.TypeVar` instances without a default to follow +instances without a default in some cases. Patch by Jelle Zijlstra. + +.. + +.. date: 2024-05-01-22-24-05 +.. gh-issue: 110863 +.. nonce: GjYBbq +.. section: Library + +:func:`os.path.realpath` now suppresses any :exc:`OSError` from +:func:`os.readlink` when *strict* mode is disabled (the default). + +.. + +.. date: 2024-04-19-14-59-53 +.. gh-issue: 118033 +.. nonce: amS4Gw +.. section: Library + +Fix :func:`dataclasses.dataclass` not creating a ``__weakref__`` slot when +subclassing :class:`typing.Generic`. + +.. + +.. date: 2024-03-19-21-41-31 +.. gh-issue: 106531 +.. nonce: Mgd--6 +.. section: Library + +In :mod:`importlib.resources`, sync with `importlib_resources 6.3.2 +<https://importlib-resources.readthedocs.io/en/latest/history.html#v6-3-2>`_, +including: ``MultiplexedPath`` now expects ``Traversable`` paths, +deprecating string arguments to ``MultiplexedPath``; Enabled support for +resources in namespace packages in zip files; Fixed ``NotADirectoryError`` +when calling files on a subdirectory of a namespace package. + +.. + +.. date: 2024-01-12-08-51-03 +.. gh-issue: 113978 +.. nonce: MqTgB0 +.. section: Library + +Ignore warnings on text completion inside REPL. + +.. + +.. date: 2023-04-28-09-54-15 +.. gh-issue: 103956 +.. nonce: EyLDPS +.. section: Library + +Fix lack of newline characters in :mod:`trace` module output when line +tracing is enabled but source code line for current frame is not available. + +.. + +.. date: 2023-04-26-22-24-17 +.. gh-issue: 92081 +.. nonce: V8xMot +.. section: Library + +Fix missing spaces in email headers when the spaces are mixed with encoded +8-bit characters. + +.. + +.. date: 2023-04-24-05-34-23 +.. gh-issue: 103194 +.. nonce: GwBwWL +.. section: Library + +Prepare Tkinter for C API changes in Tcl 8.7/9.0 to avoid +:class:`!_tkinter.Tcl_Obj` being unexpectedly returned instead of +:class:`bool`, :class:`str`, :class:`bytearray`, or :class:`int`. + +.. + +.. date: 2023-04-10-00-04-37 +.. gh-issue: 87106 +.. nonce: UyBnPQ +.. section: Library + +Fixed handling in :meth:`inspect.Signature.bind` of keyword arguments having +the same name as positional-only arguments when a variadic keyword argument +(e.g. ``**kwargs``) is present. + +.. + +.. bpo: 45767 +.. date: 2022-03-10-16-47-57 +.. nonce: ywmyo1 +.. section: Library + +Fix integer conversion in :func:`os.major`, :func:`os.minor`, and +:func:`os.makedev`. Support device numbers larger than ``2**63-1``. Support +non-existent device number (``NODEV``). + +.. + +.. date: 2019-08-27-01-16-50 +.. gh-issue: 67693 +.. nonce: 4NIAiy +.. section: Library + +Fix :func:`urllib.parse.urlunparse` and :func:`urllib.parse.urlunsplit` for +URIs with path starting with multiple slashes and no authority. Based on +patch by Ashwin Ramaswami. + +.. + +.. date: 2024-05-18-10-59-27 +.. gh-issue: 119050 +.. nonce: g4qiH7 +.. section: Tests + +regrtest test runner: Add XML support to the refleak checker (-R option). +Patch by Victor Stinner. + +.. + +.. date: 2024-05-29-17-40-50 +.. gh-issue: 119729 +.. nonce: k0xJ5U +.. section: Build + +On POSIX systems, the pkg-config (``.pc``) filenames now include the ABI +flags, which may include debug ("d") and free-threaded ("t"). For example: +* ``python-3.14.pc`` (default, non-debug build) * ``python-3.14d.pc`` +(default, debug build) * ``python-3.14t.pc`` (free-threaded build) + +.. + +.. date: 2024-05-19-22-54-55 +.. gh-issue: 115119 +.. nonce: DwMwev +.. section: Build + +Fall back to the bundled libmpdec if a system version cannot be found. + +.. + +.. date: 2024-05-17-19-53-27 +.. gh-issue: 119132 +.. nonce: wepPgM +.. section: Build + +Update :data:`sys.version` to identify whether the build is default build or +free-threading build. Patch By Donghee Na. + +.. + +.. date: 2024-05-13-15-57-58 +.. gh-issue: 118836 +.. nonce: 7yN1iB +.. section: Build + +Fix an ``AssertionError`` when building with ``--enable-experimental-jit`` +and the compiler emits a ``SHT_NOTE`` section. + +.. + +.. date: 2024-05-11-15-11-30 +.. gh-issue: 118943 +.. nonce: VI_MnY +.. section: Build + +Fix a possible race condition affecting parallel builds configured with +``--enable-experimental-jit``, in which compilation errors could be caused +by an incompletely-generated header file. + +.. + +.. date: 2024-05-30-17-39-25 +.. gh-issue: 119679 +.. nonce: mZC87w +.. section: Windows + +Ensures correct import libraries are included in Windows installs. + +.. + +.. date: 2024-05-29-11-06-12 +.. gh-issue: 119690 +.. nonce: 8q6e1p +.. section: Windows + +Adds Unicode support and fixes audit events for ``_winapi.CreateNamedPipe``. + +.. + +.. date: 2024-05-25-18-43-10 +.. gh-issue: 111201 +.. nonce: SLPJIx +.. section: Windows + +Add support for new pyrepl on Windows + +.. + +.. date: 2024-05-22-19-43-29 +.. gh-issue: 119070 +.. nonce: _enton +.. section: Windows + +Fixes ``py.exe`` handling of shebangs like ``/usr/bin/env python3.12``, +which were previously interpreted as ``python3.exe`` instead of +``python3.12.exe``. + +.. + +.. date: 2024-04-24-22-50-33 +.. gh-issue: 117505 +.. nonce: gcTb_p +.. section: Windows + +Fixes an issue with the Windows installer not running ensurepip in a fully +isolated environment. This could cause unexpected interactions with the user +site-packages. + +.. + +.. date: 2024-04-24-05-16-32 +.. gh-issue: 118209 +.. nonce: Ryyzlz +.. section: Windows + +Avoid crashing in :mod:`mmap` on Windows when the mapped memory is +inaccessible due to file system errors or access violations. + +.. + +.. date: 2024-03-19-19-04-56 +.. gh-issue: 116145 +.. nonce: srVT3d +.. section: Windows + +Updated bundled Tcl/Tk to 8.6.14. + +.. + +.. date: 2024-05-29-21-05-59 +.. gh-issue: 119585 +.. nonce: Sn7JL3 +.. section: C API + +Fix crash when a thread state that was created by +:c:func:`PyGILState_Ensure` calls a destructor that during +:c:func:`PyThreadState_Clear` that calls back into +:c:func:`PyGILState_Ensure` and :c:func:`PyGILState_Release`. This might +occur when in the free-threaded build or when using thread-local variables +whose destructors call :c:func:`PyGILState_Ensure`. + +.. + +.. date: 2024-05-22-17-50-48 +.. gh-issue: 119336 +.. nonce: ff3qnS +.. section: C API + +Restore the removed ``_PyLong_NumBits()`` function. It is used by the +pywin32 project. Patch by Ethan Smith + +.. + +.. date: 2024-05-21-11-35-11 +.. gh-issue: 119247 +.. nonce: U6n6mh +.. section: C API + +Added ``Py_BEGIN_CRITICAL_SECTION_SEQUENCE_FAST`` and +``Py_END_CRITICAL_SECTION_SEQUENCE_FAST`` macros to make it possible to use +PySequence_Fast APIs safely when free-threaded, and update str.join to work +without the GIL using them. + +.. + +.. date: 2024-05-20-10-35-22 +.. gh-issue: 111389 +.. nonce: a6axBk +.. section: C API + +Add :c:macro:`PyHASH_MULTIPLIER` constant: prime multiplier used in string +and various other hashes. Patch by Victor Stinner. + +.. + +.. date: 2024-05-08-23-14-06 +.. gh-issue: 116984 +.. nonce: 5sgcDo +.. section: C API + +Make mimalloc includes relative to the current file to avoid embedders or +extensions needing to include ``Internal/mimalloc`` if they are already +including internal CPython headers. + +.. + +.. date: 2024-05-08-20-13-00 +.. gh-issue: 118789 +.. nonce: m88uUa +.. section: C API + +Restore ``_PyWeakref_ClearRef`` that was previously removed in Python 3.13 +alpha 1. |