.. 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 ` 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: 2024-05-07-16-57-56 .. 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: 2024-03-25-15-07-01 .. 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() `. 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: 2024-05-08-18-33-07 .. gh-issue: 118507 .. nonce: OCQsAY .. section: Library Speedup :func:`os.path.isjunction` and :func:`os.path.lexists` on Windows with a native implementation. .. .. 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: 2024-04-28-19-51-00 .. gh-issue: 118263 .. nonce: Gaap3S .. section: Library Speed up :func:`os.path.splitroot` & :func:`os.path.normpath` with a direct C call. .. .. 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 `_, 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.