-# Autogenerated by Sphinx on Tue Dec 16 14:26:04 2025
+# Autogenerated by Sphinx on Tue Jan 13 12:26:49 2026
# as part of the release process.
topics = {
created for each of the iterator’s values. However, the *__slots__*
attribute will be an empty iterator.
-Changed in version 3.15.0a2 (unreleased): Allowed defining the
-*__dict__* and *__weakref__* *__slots__* for any class.
+Changed in version 3.15: Allowed defining the *__dict__* and
+*__weakref__* *__slots__* for any class.
''',
'attribute-references': r'''Attribute references
********************
To remove all commands from a breakpoint, type "commands" and
follow it immediately with "end"; that is, give no commands.
- With no *bpnumber* argument, "commands" refers to the last
- breakpoint set.
+ With no *bpnumber* argument, "commands" refers to the most recently
+ set breakpoint that still exists.
You can use breakpoint commands to start your program up again.
Simply use the "continue" command, or "step", or any other command
created for each of the iterator’s values. However, the *__slots__*
attribute will be an empty iterator.
-Changed in version 3.15.0a2 (unreleased): Allowed defining the
-*__dict__* and *__weakref__* *__slots__* for any class.
+Changed in version 3.15: Allowed defining the *__dict__* and
+*__weakref__* *__slots__* for any class.
Customizing class creation
By default, an object is considered true unless its class defines
either a "__bool__()" method that returns "False" or a "__len__()"
-method that returns zero, when called with the object. [1] Here are
-most of the built-in objects considered false:
+method that returns zero, when called with the object. [1] If one of
+the methods raises an exception when called, the exception is
+propagated and the object does not have a truth value (for example,
+"NotImplemented"). Here are most of the built-in objects considered
+false:
* constants defined to be false: "None" and "False"
--- /dev/null
+.. date: 2025-12-17-02-02-57
+.. gh-issue: 142836
+.. nonce: mR-fvK
+.. release date: 2026-01-13
+.. section: Tests
+
+Accommodated Solaris in ``test_pdb.test_script_target_anonymous_pipe``.
+
+..
+
+.. date: 2025-12-22-22-36-21
+.. gh-issue: 122431
+.. nonce: 9E3085
+.. section: Library
+
+Corrected the error message in :func:`readline.append_history_file` to state
+that ``nelements`` must be non-negative instead of positive.
+
+..
+
+.. date: 2025-12-21-17-44-28
+.. gh-issue: 143046
+.. nonce: GBa5Ip
+.. section: Library
+
+The :mod:`asyncio` REPL no longer prints copyright and version messages in
+the quiet mode (:option:`-q`). Patch by Bartosz Sławecki.
+
+..
+
+.. date: 2025-12-20-16-35-42
+.. gh-issue: 80744
+.. nonce: X4pZ2N
+.. section: Library
+
+Fix issue where ``pdb`` would read a ``.pdbrc`` twice if launched from the
+home directory
+
+..
+
+.. date: 2025-12-20-02-33-05
+.. gh-issue: 138122
+.. nonce: m3EF9E
+.. section: Library
+
+Add blocking mode to Tachyon for accurate stack traces in applications with
+many generators or fast-changing call stacks. Patch by Pablo Galindo.
+
+..
+
+.. date: 2025-12-20-01-49-02
+.. gh-issue: 143010
+.. nonce: _-SWX0
+.. section: Library
+
+Fixed a bug in :mod:`mailbox` where the precise timing of an external event
+could result in the library opening an existing file instead of a file it
+expected to create.
+
+..
+
+.. date: 2025-12-17-14-41-09
+.. gh-issue: 112127
+.. nonce: 13OHQk
+.. section: Library
+
+Fix possible use-after-free in :func:`atexit.unregister` when the callback
+is unregistered during comparison.
+
+..
+
+.. date: 2025-12-17-03-03-12
+.. gh-issue: 138122
+.. nonce: m3EF9E
+.. section: Library
+
+Fix incomplete stack traces in the Tachyon profiler's frame cache when
+profiling code with deeply nested generators. The frame cache now validates
+that stack traces reach the base frame before caching, preventing broken
+flamegraphs. Patch by Pablo Galindo.
+
+..
+
+.. date: 2025-12-16-15-32-41
+.. gh-issue: 142834
+.. nonce: g7mHw_
+.. section: Library
+
+Change the :mod:`pdb` ``commands`` command to use the last available
+breakpoint instead of failing when the most recently created breakpoint was
+deleted.
+
+..
+
+.. date: 2025-12-16-14-49-19
+.. gh-issue: 142783
+.. nonce: VPV1ig
+.. section: Library
+
+Fix zoneinfo use-after-free with descriptor _weak_cache. a descriptor as
+_weak_cache could cause crashes during object creation. The fix ensures
+proper reference counting for descriptor-provided objects.
+
+..
+
+.. date: 2025-12-16-14-21-20
+.. gh-issue: 76007
+.. nonce: O4AmYl
+.. section: Library
+
+Deprecate ``VERSION`` from :mod:`xml.etree.ElementTree` and ``version`` from
+:mod:`!xml.sax.expatreader` and :mod:`xml.sax.handler`. Patch by Hugo van
+Kemenade.
+
+..
+
+.. date: 2025-12-16-04-39-27
+.. gh-issue: 142784
+.. nonce: HBGJag
+.. section: Library
+
+The :mod:`asyncio` REPL now properly closes the loop upon the end of
+interactive session. Previously, it could cause surprising warnings.
+Contributed by Bartosz Sławecki.
+
+..
+
+.. date: 2025-12-15-02-00-31
+.. gh-issue: 138122
+.. nonce: m3EF9E
+.. section: Library
+
+Add binary output format to :mod:`profiling.sampling` for compact storage of
+profiling data. The new ``--binary`` option captures samples to a file that
+can be converted to other formats using the ``replay`` command. Patch by
+Pablo Galindo
+
+..
+
+.. date: 2025-12-13-23-26-42
+.. gh-issue: 142495
+.. nonce: I88Uv_
+.. section: Library
+
+:class:`collections.defaultdict` now prioritizes :meth:`~object.__setitem__`
+when inserting default values from ``default_factory``. This prevents race
+conditions where a default value would overwrite a value set before
+``default_factory`` returns.
+
+..
+
+.. date: 2025-12-13-10-34-59
+.. gh-issue: 142654
+.. nonce: fmm974
+.. section: Library
+
+Show the clearer error message when using ``profiling.sampling`` on an
+unknown PID.
+
+..
+
+.. date: 2025-12-11-22-59-33
+.. gh-issue: 142560
+.. nonce: GkJrkk
+.. section: Library
+
+Fix use-after-free in :class:`bytearray` search-like methods
+(:meth:`~bytearray.find`, :meth:`~bytearray.count`,
+:meth:`~bytearray.index`, :meth:`~bytearray.rindex`, and
+:meth:`~bytearray.rfind`) by marking the storage as exported which causes
+reallocation attempts to raise :exc:`BufferError`. For
+:func:`~operator.contains`, :meth:`~bytearray.split`, and
+:meth:`~bytearray.rsplit` the :ref:`buffer protocol <bufferobjects>` is used
+for this.
+
+..
+
+.. date: 2025-12-10-02-31-43
+.. gh-issue: 142419
+.. nonce: C8_LES
+.. section: Library
+
+:meth:`mmap.mmap.set_name` method added to annotate an anonymous memory map
+if Linux kernel supports ``PR_SET_VMA_ANON_NAME`` (Linux 5.17 or newer).
+Patch by Donghee Na.
+
+..
+
+.. date: 2025-10-12-12-05-52
+.. gh-issue: 139971
+.. nonce: UdoStU
+.. section: Library
+
+:mod:`pydoc`: Ensure that the link to the online documentation of a
+:term:`stdlib` module is correct.
+
+..
+
+.. date: 2025-07-20-15-39-54
+.. gh-issue: 124098
+.. nonce: znFPIp
+.. section: Library
+
+Fix issue where methods in handlers that lacked the protocol name but
+matched a valid base handler method (e.g., ``_open()`` or ``error()``) were
+incorrectly added to :class:`urllib.request.OpenerDirector`'s handlers.
+Contributed by Andrea Mattei.
+
+..
+
+.. date: 2025-07-05-08-30-07
+.. gh-issue: 136282
+.. nonce: K3JKyD
+.. section: Library
+
+Add support for :const:`~configparser.UNNAMED_SECTION` when creating a
+section via the mapping protocol access
+
+..
+
+.. date: 2025-12-22-12-03-09
+.. gh-issue: 143057
+.. nonce: Majsre
+.. section: Core and Builtins
+
+Avoid locking in :c:func:`PyTraceMalloc_Track` and
+:c:func:`PyTraceMalloc_Untrack` when :mod:`tracemalloc` is not enabled.
+
+..
+
+.. date: 2025-12-21-00-25-26
+.. gh-issue: 139109
+.. nonce: gwSsOL
+.. section: Core and Builtins
+
+Add missing terminator in certain cases when tracing in the new JIT
+compiler.
+
+..
+
+.. date: 2025-12-19-00-59-29
+.. gh-issue: 142961
+.. nonce: q8WRSq
+.. section: Core and Builtins
+
+Fix a segfault in the JIT when constant folding ``len(tuple)``.
+
+..
+
+.. date: 2025-12-18-01-00-14
+.. gh-issue: 142776
+.. nonce: ACaoeP
+.. section: Core and Builtins
+
+Fix a file descriptor leak in import.c
+
+..
+
+.. date: 2025-12-17-20-31-09
+.. gh-issue: 139757
+.. nonce: 6DWxeQ
+.. section: Core and Builtins
+
+Fix building JIT stencils on free-threaded builds.
+
+..
+
+.. date: 2025-12-17-10-49-03
+.. gh-issue: 129068
+.. nonce: GlYnrO
+.. section: Core and Builtins
+
+Make concurrent iteration over the same range iterator thread-safe in the
+free threading build.
+
+..
+
+.. date: 2025-12-16-23-26-41
+.. gh-issue: 142543
+.. nonce: wJKjBs
+.. section: Core and Builtins
+
+Fix a stack overflow on Clang JIT build configurations with full LTO.
+
+..
+
+.. date: 2025-12-16-20-38-17
+.. gh-issue: 142448
+.. nonce: mAFqwL
+.. section: Core and Builtins
+
+Fix a bug when using monitoring with the JIT.
+
+..
+
+.. date: 2025-12-16-11-56-20
+.. gh-issue: 142766
+.. nonce: Uy2HTm
+.. section: Core and Builtins
+
+Clear the frame of a generator when :meth:`generator.close` is called.
+
+..
+
+.. date: 2025-12-16-05-52-37
+.. gh-issue: 134584
+.. nonce: VsfOQR
+.. section: Core and Builtins
+
+Eliminate redundant refcounting from ``_LOAD_ATTR_INSTANCE_VALUE``.
+
+..
+
+.. date: 2025-12-16-05-24-24
+.. gh-issue: 134584
+.. nonce: tJ1usH
+.. section: Core and Builtins
+
+Eliminate redundant refcounting from ``_STORE_ATTR_WITH_HINT``.
+
+..
+
+.. date: 2025-12-13-01-11-03
+.. gh-issue: 142476
+.. nonce: 44Sp4N
+.. section: Core and Builtins
+
+Fix a memory leak in the experimental Tier 2 optimizer when creating
+executors. Patched by Shamil Abdulaev.
+
+..
+
+.. date: 2025-11-06-05-21-25
+.. gh-issue: 100964
+.. nonce: TxPf1b
+.. section: Core and Builtins
+
+Fix reference cycle in exhausted generator frames. Patch by Savannah
+Ostrowski.
+
+..
+
+.. date: 2025-10-11-17-01-21
+.. gh-issue: 139922
+.. nonce: RUkXyd
+.. section: Core and Builtins
+
+Allow building CPython with the tail calling interpreter on Visual Studio
+2026 MSVC. This provides a performance gain over the prior interpreter for
+MSVC. Patch by Ken Jin, Brandt Bucher, and Chris Eibl. With help from the
+MSVC team including Hulon Jenkins.
projects / thirdparty / Python / cpython.git / commitdiff
