.. date: 2023-01-06-02-02-11
.. gh-issue: 100776
.. nonce: pP8xux
.. release date: 2023-01-10
.. section: Core and Builtins
Fix misleading default value in :func:`input`'s ``__text_signature__``.
..
.. date: 2023-01-05-17-54-29
.. gh-issue: 99005
.. nonce: cmGwxv
.. section: Core and Builtins
Remove :opcode:`!UNARY_POSITIVE`, :opcode:`!ASYNC_GEN_WRAP` and
:opcode:`!LIST_TO_TUPLE`, replacing them with intrinsics.
..
.. date: 2023-01-05-13-54-00
.. gh-issue: 99005
.. nonce: D7H6j4
.. section: Core and Builtins
Add new :opcode:`CALL_INTRINSIC_1` instruction. Remove
:opcode:`IMPORT_STAR`, :opcode:`PRINT_EXPR` and
:opcode:`STOPITERATION_ERROR`, replacing them with the
:opcode:`CALL_INTRINSIC_1` instruction.
..
.. date: 2023-01-04-16-40-55
.. gh-issue: 100288
.. nonce: hRSRaT
.. section: Core and Builtins
Remove the LOAD_ATTR_METHOD_WITH_DICT specialized instruction. Stats show it
is not useful.
..
.. date: 2023-01-03-16-50-42
.. gh-issue: 100720
.. nonce: UhE7P-
.. section: Core and Builtins
Added ``_PyFrame_NumSlotsForCodeObject``, which returns the number of slots
needed in a frame for a given code object.
..
.. date: 2023-01-03-16-38-18
.. gh-issue: 100719
.. nonce: 2C--ko
.. section: Core and Builtins
Removed the co_nplaincellvars field from the code object, as it is
redundant.
..
.. date: 2023-01-01-15-59-48
.. gh-issue: 100637
.. nonce: M2n6Kg
.. section: Core and Builtins
Fix :func:`int.__sizeof__` calculation to include the 1-element ``ob_digit``
array for ``0`` and ``False``.
..
.. date: 2022-12-31-23-32-09
.. gh-issue: 100649
.. nonce: C0fY4S
.. section: Core and Builtins
Update the native_thread_id field of PyThreadState after fork.
..
.. date: 2022-12-29-04-39-38
.. gh-issue: 100126
.. nonce: pfFJd-
.. section: Core and Builtins
Fix an issue where "incomplete" frames could be briefly visible to C code
while other frames are being torn down, possibly resulting in corruption or
hard crashes of the interpreter while running finalizers.
..
.. date: 2022-12-28-15-02-53
.. gh-issue: 87447
.. nonce: 7-aekA
.. section: Core and Builtins
Fix :exc:`SyntaxError` on comprehension rebind checking with names that are
not actually redefined.
Now reassigning ``b`` in ``[(b := 1) for a, b.prop in some_iter]`` is
allowed. Reassigning ``a`` is still disallowed as per :pep:`572`.
..
.. date: 2022-12-22-21-56-08
.. gh-issue: 100268
.. nonce: xw_phB
.. section: Core and Builtins
Add :meth:`int.is_integer` to improve duck type compatibility between
:class:`int` and :class:`float`.
..
.. date: 2022-12-21-22-48-41
.. gh-issue: 100425
.. nonce: U64yLu
.. section: Core and Builtins
Improve the accuracy of ``sum()`` with compensated summation.
..
.. date: 2022-12-20-16-14-19
.. gh-issue: 100374
.. nonce: YRrVHT
.. section: Core and Builtins
Fix incorrect result and delay in :func:`socket.getfqdn`. Patch by Dominic
Socular.
..
.. date: 2022-12-20-09-56-56
.. gh-issue: 100357
.. nonce: hPyTwY
.. section: Core and Builtins
Convert ``vars``, ``dir``, ``next``, ``getattr``, and ``iter`` to argument
clinic.
..
.. date: 2022-12-17-19-44-57
.. gh-issue: 100117
.. nonce: yRWQ1y
.. section: Core and Builtins
Improve the output of :meth:`codeobject.co_lines` by emitting only one entry
for each line range.
..
.. date: 2022-12-15-00-50-25
.. gh-issue: 90043
.. nonce: gyoKdx
.. section: Core and Builtins
Handle NaNs when specializing :opcode:`COMPARE_OP` for :class:`float`
values.
..
.. date: 2022-12-13-16-05-18
.. gh-issue: 100222
.. nonce: OVVvYe
.. section: Core and Builtins
Redefine the ``_Py_CODEUNIT`` typedef as a union to describe its layout to
the C compiler, avoiding type punning and improving clarity.
..
.. date: 2022-12-12-11-27-54
.. gh-issue: 99955
.. nonce: Ix5Rrg
.. section: Core and Builtins
Internal compiler functions (in compile.c) now consistently return -1 on
error and 0 on success.
..
.. date: 2022-12-12-05-30-12
.. gh-issue: 100188
.. nonce: sGCSMR
.. section: Core and Builtins
The ``BINARY_SUBSCR_LIST_INT`` and ``BINARY_SUBSCR_TUPLE_INT`` instructions
are no longer used for negative integers because those instructions always
miss when encountering negative integers.
..
.. date: 2022-12-12-01-05-16
.. gh-issue: 99110
.. nonce: 1JqtIg
.. section: Core and Builtins
Initialize frame->previous in frameobject.c to fix a segmentation fault when
accessing frames created by :c:func:`PyFrame_New`.
..
.. date: 2022-12-12-00-59-11
.. gh-issue: 94155
.. nonce: LWE9y_
.. section: Core and Builtins
Improved the hashing algorithm for code objects, mitigating some hash
collisions.
..
.. date: 2022-12-10-20-00-13
.. gh-issue: 99540
.. nonce: ZZZHeP
.. section: Core and Builtins
``None`` now hashes to a constant value. This is not a requirements change.
..
.. date: 2022-12-09-14-27-36
.. gh-issue: 100143
.. nonce: 5g9rb4
.. section: Core and Builtins
When built with ``--enable-pystats``, stats collection is now off by
default. To enable it early at startup, pass the ``-Xpystats`` flag. Stats
are now always dumped, even if switched off.
..
.. date: 2022-12-09-13-18-42
.. gh-issue: 100146
.. nonce: xLVKg0
.. section: Core and Builtins
Improve ``BUILD_LIST`` opcode so that it works similarly to the
``BUILD_TUPLE`` opcode, by stealing references from the stack rather than
repeatedly using stack operations to set list elements. Implementation
details are in a new private API :c:func:`!_PyList_FromArraySteal`.
..
.. date: 2022-12-08-12-26-34
.. gh-issue: 100110
.. nonce: ertac-
.. section: Core and Builtins
Specialize ``FOR_ITER`` for tuples.
..
.. date: 2022-12-06-22-24-01
.. gh-issue: 100050
.. nonce: lcrPqQ
.. section: Core and Builtins
Honor existing errors obtained when searching for mismatching parentheses in
the tokenizer. Patch by Pablo Galindo
..
.. date: 2022-12-04-00-38-33
.. gh-issue: 92216
.. nonce: CJXuWB
.. section: Core and Builtins
Improve the performance of :func:`hasattr` for type objects with a missing
attribute.
..
.. date: 2022-11-19-01-11-06
.. gh-issue: 99582
.. nonce: wvOBVy
.. section: Core and Builtins
Freeze :mod:`zipimport` module into ``_bootstrap_python``.
..
.. date: 2022-11-16-05-57-24
.. gh-issue: 99554
.. nonce: A_Ywd2
.. section: Core and Builtins
Pack debugging location tables more efficiently during bytecode compilation.
..
.. date: 2022-10-21-16-10-39
.. gh-issue: 98522
.. nonce: s_SixG
.. section: Core and Builtins
Add an internal version number to code objects, to give better versioning of
inner functions and comprehensions, and thus better specialization of those
functions. This change is invisible to both Python and C extensions.
..
.. date: 2022-07-06-18-44-00
.. gh-issue: 94603
.. nonce: Q_03xV
.. section: Core and Builtins
Improve performance of ``list.pop`` for small lists.
..
.. date: 2022-06-17-08-00-34
.. gh-issue: 89051
.. nonce: yP4Na0
.. section: Core and Builtins
Add :const:`ssl.OP_LEGACY_SERVER_CONNECT`
..
.. bpo: 32782
.. date: 2018-02-06-23-21-13
.. nonce: EJVSfR
.. section: Core and Builtins
``ctypes`` arrays of length 0 now report a correct itemsize when a
``memoryview`` is constructed from them, rather than always giving a value
of 0.
..
.. date: 2023-01-08-12-10-17
.. gh-issue: 100833
.. nonce: f6cT7E
.. section: Library
Speed up :func:`math.fsum` by removing defensive ``volatile`` qualifiers.
..
.. date: 2023-01-07-15-13-47
.. gh-issue: 100805
.. nonce: 05rBz9
.. section: Library
Modify :func:`random.choice` implementation to once again work with NumPy
arrays.
..
.. date: 2023-01-06-22-36-27
.. gh-issue: 100813
.. nonce: mHRdQn
.. section: Library
Add :const:`socket.IP_PKTINFO` constant.
..
.. date: 2023-01-06-14-05-15
.. gh-issue: 100792
.. nonce: CEOJth
.. section: Library
Make :meth:`email.message.Message.__contains__` twice as fast.
..
.. date: 2023-01-05-23-04-15
.. gh-issue: 91851
.. nonce: AuCzU5
.. section: Library
Microoptimizations for :meth:`fractions.Fraction.__round__`,
:meth:`fractions.Fraction.__ceil__` and
:meth:`fractions.Fraction.__floor__`.
..
.. date: 2023-01-04-22-10-31
.. gh-issue: 90104
.. nonce: yZk5EX
.. section: Library
Avoid RecursionError on ``repr`` if a dataclass field definition has a
cyclic reference.
..
.. date: 2023-01-04-12-58-59
.. gh-issue: 100689
.. nonce: Ce0ITG
.. section: Library
Fix crash in :mod:`pyexpat` by statically allocating ``PyExpat_CAPI``
capsule.
..
.. date: 2023-01-04-09-53-38
.. gh-issue: 100740
.. nonce: -j5UjI
.. section: Library
Fix ``unittest.mock.Mock`` not respecting the spec for attribute names
prefixed with ``assert``.
..
.. date: 2023-01-03-11-06-28
.. gh-issue: 91219
.. nonce: s5IFCw
.. section: Library
Change ``SimpleHTTPRequestHandler`` to support subclassing to provide a
different set of index file names instead of using ``__init__`` parameters.
..
.. date: 2023-01-02-16-59-49
.. gh-issue: 100690
.. nonce: 2EgWPS
.. section: Library
``Mock`` objects which are not unsafe will now raise an ``AttributeError``
when accessing an attribute that matches the name of an assertion but
without the prefix ``assert_``, e.g. accessing ``called_once`` instead of
``assert_called_once``. This is in addition to this already happening for
accessing attributes with prefixes ``assert``, ``assret``, ``asert``,
``aseert``, and ``assrt``.
..
.. date: 2023-01-01-23-57-00
.. gh-issue: 89727
.. nonce: ojedHN
.. section: Library
Simplify and optimize :func:`os.walk` by using :func:`isinstance` checks to
check the top of the stack.
..
.. date: 2023-01-01-21-54-46
.. gh-issue: 100485
.. nonce: geNrHS
.. section: Library
Add math.sumprod() to compute the sum of products.
..
.. date: 2022-12-30-07-49-08
.. gh-issue: 86508
.. nonce: nGZDzC
.. section: Library
Fix :func:`asyncio.open_connection` to skip binding to local addresses of
different family. Patch by Kumar Aditya.
..
.. date: 2022-12-29-11-45-22
.. gh-issue: 97930
.. nonce: hrtmJe
.. section: Library
``importlib.resources.files`` now accepts a module as an anchor instead of
only accepting packages. If a module is passed, resources are resolved
adjacent to that module (in the same package or at the package root). The
parameter was renamed from ``package`` to ``anchor`` with a compatibility
shim for those passing by keyword. Additionally, the new ``anchor``
parameter is now optional and will default to the caller's module.
..
.. date: 2022-12-28-17-38-39
.. gh-issue: 100585
.. nonce: BiiTlG
.. section: Library
Fixed a bug where importlib.resources.as_file was leaving file pointers open
..
.. date: 2022-12-28-00-28-43
.. gh-issue: 100562
.. nonce: Hic0Z0
.. section: Library
Improve performance of :meth:`pathlib.Path.absolute` by nearly 2x. This
comes at the cost of a performance regression in :meth:`pathlib.Path.cwd`,
which is generally used less frequently in user code.
..
.. date: 2022-12-24-16-39-53
.. gh-issue: 100519
.. nonce: G_dZLP
.. section: Library
Small simplification of :func:`http.cookiejar.eff_request_host` that
improves readability and better matches the RFC wording.
..
.. date: 2022-12-24-08-42-05
.. gh-issue: 100287
.. nonce: n0oEuG
.. section: Library
Fix the interaction of :func:`unittest.mock.seal` with
:class:`unittest.mock.AsyncMock`.
..
.. date: 2022-12-24-04-13-54
.. gh-issue: 100488
.. nonce: Ut8HbE
.. section: Library
Add :meth:`Fraction.is_integer` to check whether a
:class:`fractions.Fraction` is an integer. This improves duck type
compatibility with :class:`float` and :class:`int`.
..
.. date: 2022-12-23-21-02-43
.. gh-issue: 100474
.. nonce: gppA4U
.. section: Library
:mod:`http.server` now checks that an index page is actually a regular file
before trying to serve it. This avoids issues with directories named
``index.html``.
..
.. date: 2022-12-20-11-07-30
.. gh-issue: 100363
.. nonce: Wo_Beg
.. section: Library
Speed up :func:`asyncio.get_running_loop` by removing redundant ``getpid``
checks. Patch by Kumar Aditya.
..
.. date: 2022-12-19-20-54-04
.. gh-issue: 78878
.. nonce: JrkYqJ
.. section: Library
Fix crash when creating an instance of :class:`!_ctypes.CField`.
..
.. date: 2022-12-19-19-30-06
.. gh-issue: 100348
.. nonce: o7IAHh
.. section: Library
Fix ref cycle in :class:`!asyncio._SelectorSocketTransport` by removing
``_read_ready_cb`` in ``close``.
..
.. date: 2022-12-19-12-18-28
.. gh-issue: 100344
.. nonce: lfCqpE
.. section: Library
Provide C implementation for :func:`asyncio.current_task` for a 4x-6x
speedup.
..
.. date: 2022-12-15-18-28-13
.. gh-issue: 100272
.. nonce: D1O9Ey
.. section: Library
Fix JSON serialization of OrderedDict. It now preserves the order of keys.
..
.. date: 2022-12-14-17-37-01
.. gh-issue: 83076
.. nonce: NaYzWT
.. section: Library
Instantiation of ``Mock()`` and ``AsyncMock()`` is now 3.8x faster.
..
.. date: 2022-12-14-11-45-38
.. gh-issue: 100234
.. nonce: kn6yWV
.. section: Library
Set a default value of 1.0 for the ``lambd`` parameter in
random.expovariate().
..
.. date: 2022-12-13-17-29-09
.. gh-issue: 100228
.. nonce: bgtzMV
.. section: Library
A :exc:`DeprecationWarning` may be raised when :func:`os.fork` or
:func:`os.forkpty` is called from multi-threaded processes. Forking with
threads is unsafe and can cause deadlocks, crashes and subtle problems. Lack
of a warning does not indicate that the fork call was actually safe, as
Python may not be aware of all threads.
..
.. date: 2022-12-10-20-52-28
.. gh-issue: 100039
.. nonce: zDqjT4
.. section: Library
Improve signatures for enums and flags.
..
.. date: 2022-12-10-08-36-07
.. gh-issue: 100133
.. nonce: g-zQlp
.. section: Library
Fix regression in :mod:`asyncio` where a subprocess would sometimes lose
data received from pipe.
..
.. bpo: 44592
.. date: 2022-12-09-10-35-36
.. nonce: z-P3oe
.. section: Library
Fixes inconsistent handling of case sensitivity of *extrasaction* arg in
:class:`csv.DictWriter`.
..
.. date: 2022-12-08-06-18-06
.. gh-issue: 100098
.. nonce: uBvPlp
.. section: Library
Fix ``tuple`` subclasses being cast to ``tuple`` when used as enum values.
..
.. date: 2022-12-04-16-12-04
.. gh-issue: 85432
.. nonce: l_ehmI
.. section: Library
Rename the *fmt* parameter of the pure-Python implementation of
:meth:`datetime.time.strftime` to *format*. Rename the *t* parameter of
:meth:`datetime.datetime.fromtimestamp` to *timestamp*. These changes mean
the parameter names in the pure-Python implementation now match the
parameter names in the C implementation. Patch by Alex Waygood.
..
.. date: 2022-12-03-20-06-16
.. gh-issue: 98778
.. nonce: t5U9uc
.. section: Library
Update :exc:`~urllib.error.HTTPError` to be initialized properly, even if
the ``fp`` is ``None``. Patch by Donghee Na.
..
.. date: 2022-12-01-15-44-58
.. gh-issue: 99925
.. nonce: x4y6pF
.. section: Library
Unify error messages in JSON serialization between
``json.dumps(float('nan'), allow_nan=False)`` and ``json.dumps(float('nan'),
allow_nan=False, indent=<SOMETHING>)``. Now both include the representation
of the value that could not be serialized.
..
.. date: 2022-11-29-20-44-54
.. gh-issue: 89727
.. nonce: UJZjkk
.. section: Library
Fix issue with :func:`os.walk` where a :exc:`RecursionError` would occur on
deep directory structures by adjusting the implementation of :func:`os.walk`
to be iterative instead of recursive.
..
.. date: 2022-11-23-23-58-45
.. gh-issue: 94943
.. nonce: Oog0Zo
.. section: Library
Add :ref:`enum-dataclass-support` to the :class:`~enum.Enum`
:meth:`~enum.Enum.__repr__`. When inheriting from a
:class:`~dataclasses.dataclass`, only show the field names in the value
section of the member :func:`repr`, and not the dataclass' class name.
..
.. date: 2022-11-21-16-24-01
.. gh-issue: 83035
.. nonce: qZIujU
.. section: Library
Fix :func:`inspect.getsource` handling of decorator calls with nested
parentheses.
..
.. date: 2022-11-20-11-59-54
.. gh-issue: 99576
.. nonce: ZD7jU6
.. section: Library
Fix ``.save()`` method for ``LWPCookieJar`` and ``MozillaCookieJar``: saved
file was not truncated on repeated save.
..
.. date: 2022-11-17-10-02-18
.. gh-issue: 94912
.. nonce: G2aa-E
.. section: Library
Add :func:`inspect.markcoroutinefunction` decorator which manually marks a
function as a coroutine for the benefit of :func:`iscoroutinefunction`.
..
.. date: 2022-11-15-18-45-01
.. gh-issue: 99509
.. nonce: FLK0xU
.. section: Library
Add :pep:`585` support for :class:`multiprocessing.queues.Queue`.
..
.. date: 2022-11-14-19-58-36
.. gh-issue: 99482
.. nonce: XmZyUr
.. section: Library
Remove ``Jython`` partial compatibility code from several stdlib modules.
..
.. date: 2022-11-13-15-32-19
.. gh-issue: 99433
.. nonce: Ys6y0A
.. section: Library
Fix :mod:`doctest` failure on :class:`types.MethodWrapperType` in modules.
..
.. date: 2022-10-28-07-24-34
.. gh-issue: 85267
.. nonce: xUy_Wm
.. section: Library
Several improvements to :func:`inspect.signature`'s handling of
``__text_signature``. - Fixes a case where :func:`inspect.signature` dropped
parameters - Fixes a case where :func:`inspect.signature` raised
:exc:`tokenize.TokenError` - Allows :func:`inspect.signature` to understand
defaults involving binary operations of constants -
:func:`inspect.signature` is documented as only raising :exc:`TypeError` or
:exc:`ValueError`, but sometimes raised :exc:`RuntimeError`. These cases now
raise :exc:`ValueError` - Removed a dead code path
..
.. date: 2022-10-24-07-31-11
.. gh-issue: 91166
.. nonce: -IG06R
.. section: Library
:mod:`asyncio` is optimized to avoid excessive copying when writing to
socket and use :meth:`~socket.socket.sendmsg` if the platform supports it.
Patch by Kumar Aditya.
..
.. date: 2022-10-07-18-16-00
.. gh-issue: 98030
.. nonce: 2oQCZy
.. section: Library
Add missing TCP socket options from Linux: ``TCP_MD5SIG``,
``TCP_THIN_LINEAR_TIMEOUTS``, ``TCP_THIN_DUPACK``, ``TCP_REPAIR``,
``TCP_REPAIR_QUEUE``, ``TCP_QUEUE_SEQ``, ``TCP_REPAIR_OPTIONS``,
``TCP_TIMESTAMP``, ``TCP_CC_INFO``, ``TCP_SAVE_SYN``, ``TCP_SAVED_SYN``,
``TCP_REPAIR_WINDOW``, ``TCP_FASTOPEN_CONNECT``, ``TCP_ULP``,
``TCP_MD5SIG_EXT``, ``TCP_FASTOPEN_KEY``, ``TCP_FASTOPEN_NO_COOKIE``,
``TCP_ZEROCOPY_RECEIVE``, ``TCP_INQ``, ``TCP_TX_DELAY``.
..
.. date: 2022-09-16-08-21-46
.. gh-issue: 88500
.. nonce: jQ0pCc
.. section: Library
Reduced the memory usage of :func:`urllib.parse.unquote` and
:func:`urllib.parse.unquote_to_bytes` on large values.
..
.. date: 2022-08-27-10-35-50
.. gh-issue: 96127
.. nonce: 8RdLre
.. section: Library
``inspect.signature`` was raising ``TypeError`` on call with mock objects.
Now it correctly returns ``(*args, **kwargs)`` as inferred signature.
..
.. date: 2022-08-11-10-02-19
.. gh-issue: 95882
.. nonce: FsUr72
.. section: Library
Fix a 3.11 regression in :func:`~contextlib.asynccontextmanager`, which
caused it to propagate exceptions with incorrect tracebacks and fix a 3.11
regression in :func:`~contextlib.contextmanager`, which caused it to
propagate exceptions with incorrect tracebacks for :exc:`StopIteration`.
..
.. date: 2022-07-01-00-01-22
.. gh-issue: 78707
.. nonce: fHGSuM
.. section: Library
Deprecate passing more than one positional argument to
:meth:`pathlib.PurePath.relative_to` and
:meth:`~pathlib.PurePath.is_relative_to`.
..
.. date: 2022-05-06-01-53-34
.. gh-issue: 92122
.. nonce: 96Lf2p
.. section: Library
Fix reStructuredText syntax errors in docstrings in the :mod:`enum` module.
..
.. date: 2022-04-23-08-12-14
.. gh-issue: 91851
.. nonce: Jd47V6
.. section: Library
Optimize the :class:`~fractions.Fraction` arithmetics for small components.
..
.. bpo: 24132
.. date: 2022-03-05-02-14-09
.. nonce: W6iORO
.. section: Library
Make :class:`pathlib.PurePath` and :class:`~pathlib.Path` subclassable
(private to start). Previously, attempting to instantiate a subclass
resulted in an :exc:`AttributeError` being raised. Patch by Barney Gale.
..
.. bpo: 40447
.. date: 2020-05-03-12-55-55
.. nonce: oKR0Lj
.. section: Library
Accept :class:`os.PathLike` (such as :class:`pathlib.Path`) in the
``stripdir`` arguments of :meth:`compileall.compile_file` and
:meth:`compileall.compile_dir`.
..
.. bpo: 36880
.. date: 2019-05-13-11-37-30
.. nonce: ZgBgH0
.. section: Library
Fix a reference counting issue when a :mod:`ctypes` callback with return
type :class:`~ctypes.py_object` returns ``None``, which could cause crashes.
..
.. date: 2022-12-30-00-42-23
.. gh-issue: 100616
.. nonce: eu80ij
.. section: Documentation
Document existing ``attr`` parameter to :func:`curses.window.vline` function
in :mod:`curses`.
..
.. date: 2022-12-23-21-42-26
.. gh-issue: 100472
.. nonce: NNixfO
.. section: Documentation
Remove claim in documentation that the ``stripdir``, ``prependdir`` and
``limit_sl_dest`` parameters of :func:`compileall.compile_dir` and
:func:`compileall.compile_file` could be :class:`bytes`.
..
.. bpo: 25377
.. date: 2020-06-17-14-47-48
.. nonce: CTxC6o
.. section: Documentation
Clarify use of octal format of mode argument in help(os.chmod) as well as
help(os.fchmod)
..
.. date: 2022-12-23-13-29-55
.. gh-issue: 100454
.. nonce: 3no0cW
.. section: Tests
Start running SSL tests with OpenSSL 3.1.0-beta1.
..
.. date: 2022-12-08-00-03-37
.. gh-issue: 100086
.. nonce: 1zYpto
.. section: Tests
The Python test runner (libregrtest) now logs Python build information like
"debug" vs "release" build, or LTO and PGO optimizations. Patch by Victor
Stinner.
..
.. date: 2022-06-16-13-26-31
.. gh-issue: 93018
.. nonce: wvNx76
.. section: Tests
Make two tests forgiving towards host system libexpat with backported
security fixes applied.
..
.. date: 2022-12-26-15-07-48
.. gh-issue: 100540
.. nonce: l6ToSY
.. section: Build
Removed the ``--with-system-ffi`` ``configure`` option; ``libffi`` must now
always be supplied by the system on all non-Windows platforms. The option
has had no effect on non-Darwin platforms for several releases, and in 3.11
only had the non-obvious effect of invoking ``pkg-config`` to find
``libffi`` and never setting ``-DUSING_APPLE_OS_LIBFFI``. Now on Darwin
platforms ``configure`` will first check for the OS ``libffi`` and then fall
back to the same processing as other platforms if it is not found.
..
.. date: 2022-12-08-14-00-04
.. gh-issue: 88267
.. nonce: MqtRbm
.. section: Build
Avoid exporting Python symbols in linked Windows applications when the core
is built as static.
..
.. bpo: 41916
.. date: 2022-03-04-10-47-23
.. nonce: 1d2GLU
.. section: Build
Allow override of ac_cv_cxx_thread so that cross compiled python can set
-pthread for CXX.
..
.. date: 2023-01-09-23-03-57
.. gh-issue: 100180
.. nonce: b5phrg
.. section: Windows
Update Windows installer to OpenSSL 1.1.1s
..
.. date: 2022-12-20-18-36-17
.. gh-issue: 99191
.. nonce: 0cfRja
.. section: Windows
Use ``_MSVC_LANG >= 202002L`` instead of less-precise ``_MSC_VER >=1929`` to
more accurately test for C++20 support in :file:`PC/_wmimodule.cpp`.
..
.. date: 2022-12-09-22-47-42
.. gh-issue: 79218
.. nonce: Yiot2e
.. section: Windows
Define ``MS_WIN64`` for Mingw-w64 64bit, fix cython compilation failure.
..
.. date: 2022-12-06-11-16-46
.. gh-issue: 99941
.. nonce: GmUQ6o
.. section: Windows
Ensure that :func:`asyncio.Protocol.data_received` receives an immutable
:class:`bytes` object (as documented), instead of :class:`bytearray`.
..
.. bpo: 43984
.. date: 2021-05-02-15-29-33
.. nonce: U92jiv
.. section: Windows
:meth:`winreg.SetValueEx` now leaves the target value untouched in the case
of conversion errors. Previously, ``-1`` would be written in case of such
errors.
..
.. bpo: 34816
.. date: 2021-04-08-00-36-37
.. nonce: 4Xe0id
.. section: Windows
``hasattr(ctypes.windll, 'nonexistant')`` now returns ``False`` instead of
raising :exc:`OSError`.
..
.. date: 2023-01-09-22-04-21
.. gh-issue: 100180
.. nonce: WVhCny
.. section: macOS
Update macOS installer to OpenSSL 1.1.1s
..
.. date: 2022-12-26-14-52-37
.. gh-issue: 100540
.. nonce: kYZLtX
.. section: macOS
Removed obsolete ``dlfcn.h`` shim from the ``_ctypes`` extension module,
which has not been necessary since Mac OS X 10.2.
..
.. bpo: 45256
.. date: 2022-12-29-19-22-11
.. nonce: a0ee_H
.. section: Tools/Demos
Fix a bug that caused an :exc:`AttributeError` to be raised in
``python-gdb.py`` when ``py-locals`` is used without a frame.
..
.. date: 2022-12-19-10-08-53
.. gh-issue: 100342
.. nonce: qDFlQG
.. section: Tools/Demos
Add missing ``NULL`` check for possible allocation failure in ``*args``
parsing in Argument Clinic.
..
.. date: 2022-12-02-09-31-19
.. gh-issue: 99947
.. nonce: Ski7OC
.. section: C API
Raising SystemError on import will now have its cause be set to the original
unexpected exception.
..
.. date: 2022-11-30-16-39-22
.. gh-issue: 99240
.. nonce: 67nAX-
.. section: C API
In argument parsing, after deallocating newly allocated memory, reset its
pointer to NULL.
..
.. date: 2022-11-04-16-13-35
.. gh-issue: 98724
.. nonce: p0urWO
.. section: C API
The :c:macro:`Py_CLEAR`, :c:macro:`Py_SETREF` and :c:macro:`Py_XSETREF`
macros now only evaluate their arguments once. If an argument has side
effects, these side effects are no longer duplicated. Patch by Victor
Stinner.
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