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diff --git a/Misc/NEWS.d/3.11.0a4.rst b/Misc/NEWS.d/3.11.0a4.rst new file mode 100644 index 0000000..2391f43 --- /dev/null +++ b/Misc/NEWS.d/3.11.0a4.rst @@ -0,0 +1,1177 @@ +.. bpo: 46070 +.. date: 2022-01-13-17-58-56 +.. nonce: q8IGth +.. release date: 2022-01-13 +.. section: Core and Builtins + +:c:func:`Py_EndInterpreter` now explicitly untracks all objects currently +tracked by the GC. Previously, if an object was used later by another +interpreter, calling :c:func:`PyObject_GC_UnTrack` on the object crashed if +the previous or the next object of the :c:type:`PyGC_Head` structure became +a dangling pointer. Patch by Victor Stinner. + +.. + +.. bpo: 46347 +.. date: 2022-01-11-13-57-00 +.. nonce: Gd8M-S +.. section: Core and Builtins + +Fix memory leak in PyEval_EvalCodeEx. + +.. + +.. bpo: 46339 +.. date: 2022-01-11-11-50-19 +.. nonce: OVumDZ +.. section: Core and Builtins + +Fix a crash in the parser when retrieving the error text for multi-line +f-strings expressions that do not start in the first line of the string. +Patch by Pablo Galindo + +.. + +.. bpo: 46331 +.. date: 2022-01-10-16-21-54 +.. nonce: h1AC-i +.. section: Core and Builtins + +Do not set line number of instruction storing doc-string. Fixes regression +introduced in 3.11 alpha. + +.. + +.. bpo: 46314 +.. date: 2022-01-10-12-34-17 +.. nonce: jId9Ky +.. section: Core and Builtins + +Remove spurious "call" event when creating a lambda function that was +accidentally introduced in 3.11a4. + +.. + +.. bpo: 46289 +.. date: 2022-01-07-23-32-03 +.. nonce: NnjpVc +.. section: Core and Builtins + +ASDL declaration of ``FormattedValue`` has changed to reflect ``conversion`` +field is not optional. + +.. + +.. bpo: 46297 +.. date: 2022-01-07-22-13-59 +.. nonce: 83ThTl +.. section: Core and Builtins + +Fixed an interpreter crash on bootup with multiple PythonPaths set in the +Windows registry. Patch by Derzsi Dániel. + +.. + +.. bpo: 46237 +.. date: 2022-01-07-19-33-05 +.. nonce: 9A6Hpq +.. section: Core and Builtins + +Fix the line number of tokenizer errors inside f-strings. Patch by Pablo +Galindo. + +.. + +.. bpo: 46263 +.. date: 2022-01-06-10-54-07 +.. nonce: 60dRZb +.. section: Core and Builtins + +We always expect the "use_frozen_modules" config to be set, now that +getpath.c was rewritten in pure Python and the logic improved. + +.. + +.. bpo: 46006 +.. date: 2022-01-05-17-13-47 +.. nonce: hdH5Vn +.. section: Core and Builtins + +Fix a regression when a type method like ``__init__()`` is modified in a +subinterpreter. Fix a regression in ``_PyUnicode_EqualToASCIIId()`` and type +``update_slot()``. Revert the change which made the Unicode dictionary of +interned strings compatible with subinterpreters: the internal interned +dictionary is shared again by all interpreters. Patch by Victor Stinner. + +.. + +.. bpo: 45923 +.. date: 2022-01-04-14-08-10 +.. nonce: rBp7r1 +.. section: Core and Builtins + +Add RESUME opcode. This is a logical no-op. It is emitted by the compiler +anywhere a Python function can be entered. It is used by the interpreter to +perform tracing and optimizer checks. + +.. + +.. bpo: 46208 +.. date: 2022-01-04-01-53-35 +.. nonce: i00Vz5 +.. section: Core and Builtins + +Fix the regression of os.path.normpath("A/../../B") not returning expected +"../B" but "B". + +.. + +.. bpo: 46240 +.. date: 2022-01-03-23-31-25 +.. nonce: 8lGjeK +.. section: Core and Builtins + +Correct the error message for unclosed parentheses when the tokenizer +doesn't reach the end of the source when the error is reported. Patch by +Pablo Galindo + +.. + +.. bpo: 46009 +.. date: 2022-01-03-11-36-34 +.. nonce: QZGrov +.. section: Core and Builtins + +Remove the ``GEN_START`` opcode. + +.. + +.. bpo: 46235 +.. date: 2022-01-02-23-55-13 +.. nonce: gUjp2v +.. section: Core and Builtins + +Certain sequence multiplication operations like ``[0] * 1_000`` are now +faster due to reference-counting optimizations. Patch by Dennis Sweeney. + +.. + +.. bpo: 46221 +.. date: 2022-01-01-14-23-57 +.. nonce: 7oGp-I +.. section: Core and Builtins + +:opcode:`PREP_RERAISE_STAR` no longer pushes ``lasti`` to the stack. + +.. + +.. bpo: 46202 +.. date: 2021-12-30-11-06-27 +.. nonce: IKx4v6 +.. section: Core and Builtins + +Remove :opcode:`POP_EXCEPT_AND_RERAISE` and replace it by an equivalent +sequence of other opcodes. + +.. + +.. bpo: 46085 +.. date: 2021-12-30-00-23-41 +.. nonce: bDuJqu +.. section: Core and Builtins + +Fix iterator cache mechanism of :class:`OrderedDict`. + +.. + +.. bpo: 46055 +.. date: 2021-12-24-20-21-45 +.. nonce: R0QMVQ +.. section: Core and Builtins + +Speed up shifting operation involving integers less than +:c:macro:`PyLong_BASE`. Patch by Xinhang Xu. + +.. + +.. bpo: 46110 +.. date: 2021-12-18-02-37-07 +.. nonce: B6hAfu +.. section: Core and Builtins + +Add a maximum recursion check to the PEG parser to avoid stack overflow. +Patch by Pablo Galindo + +.. + +.. bpo: 46107 +.. date: 2021-12-16-23-27-05 +.. nonce: 7q5an0 +.. section: Core and Builtins + +Fix bug where :meth:`ExceptionGroup.split` and +:meth:`ExceptionGroup.subgroup` did not copy the exception group's +``__note__`` field to the parts. + +.. + +.. bpo: 45711 +.. date: 2021-12-15-15-17-04 +.. nonce: QK4QrB +.. section: Core and Builtins + +The interpreter state's representation of handled exceptions (a.k.a +exc_info, or _PyErr_StackItem) now has only the ``exc_value`` field, +``exc_type`` and ``exc_traceback`` have been removed as their values can be +derived from ``exc_value``. + +.. + +.. bpo: 44525 +.. date: 2021-12-13-17-12-16 +.. nonce: 4-FiSf +.. section: Core and Builtins + +Replace the four call bytecode instructions which one pre-call instruction +and two call instructions. + +Removes ``CALL_FUNCTION``, ``CALL_FUNCTION_KW``, ``CALL_METHOD`` and +``CALL_METHOD_KW``. + +Adds ``CALL_NO_KW`` and ``CALL_KW`` call instructions, and +``PRECALL_METHOD`` prefix for pairing with ``LOAD_METHOD``. + +.. + +.. bpo: 46039 +.. date: 2021-12-13-17-01-13 +.. nonce: TrCBbF +.. section: Core and Builtins + +Remove the ``YIELD_FROM`` instruction and replace it with the ``SEND`` +instruction which performs the same operation, but without the loop. + +.. + +.. bpo: 45635 +.. date: 2021-12-12-15-52-41 +.. nonce: ADVaPT +.. section: Core and Builtins + +The code called from :c:func:`_PyErr_Display` was refactored to improve +error handling. It now exits immediately upon an unrecoverable error. + +.. + +.. bpo: 46054 +.. date: 2021-12-12-05-30-21 +.. nonce: 2P-foG +.. section: Core and Builtins + +Fix parser error when parsing non-utf8 characters in source files. Patch by +Pablo Galindo. + +.. + +.. bpo: 46042 +.. date: 2021-12-11-17-40-34 +.. nonce: aqYxku +.. section: Core and Builtins + +Improve the location of the caret in :exc:`SyntaxError` exceptions emitted +by the symbol table. Patch by Pablo Galindo. + +.. + +.. bpo: 46049 +.. date: 2021-12-11-13-49-19 +.. nonce: 9dNto2 +.. section: Core and Builtins + +Ensure :file:`._pth` files work as intended on platforms other than Windows. + +.. + +.. bpo: 46048 +.. date: 2021-12-11-13-14-42 +.. nonce: _-OGD9 +.. section: Core and Builtins + +Fixes parsing of :file:`._pth` files on startup so that single-character +paths are correctly read. + +.. + +.. bpo: 37971 +.. date: 2021-12-10-13-42-17 +.. nonce: 6BC1Tx +.. section: Core and Builtins + +Fix a bug where the line numbers given in a traceback when a decorator +application raised an exception were wrong. + +.. + +.. bpo: 46031 +.. date: 2021-12-10-09-10-32 +.. nonce: rM7JOX +.. section: Core and Builtins + +Add :opcode:`POP_JUMP_IF_NOT_NONE` and :opcode:`POP_JUMP_IF_NONE` opcodes to +speed up conditional jumps. + +.. + +.. bpo: 45654 +.. date: 2021-12-09-11-57-43 +.. nonce: MZc7ei +.. section: Core and Builtins + +Deepfreeze :mod:`runpy`, patch by Kumar Aditya. + +.. + +.. bpo: 46025 +.. date: 2021-12-09-11-41-35 +.. nonce: pkEvW9 +.. section: Core and Builtins + +Fix a crash in the :mod:`atexit` module involving functions that unregister +themselves before raising exceptions. Patch by Pablo Galindo. + +.. + +.. bpo: 46000 +.. date: 2021-12-07-11-42-44 +.. nonce: v_ru3k +.. section: Core and Builtins + +Improve compatibility of the :mod:`curses` module with NetBSD curses. + +.. + +.. bpo: 44525 +.. date: 2021-12-07-11-04-21 +.. nonce: 6OWCgr +.. section: Core and Builtins + +Specialize the CALL_FUNCTION instruction for calls to builtin types with a +single argument. Speeds up ``range(x)``, ``list(x)``, and specifically +``type(obj)``. + +.. + +.. bpo: 42918 +.. date: 2021-12-06-15-32-12 +.. nonce: Czpgtg +.. section: Core and Builtins + +Fix bug where the built-in :func:`compile` function did not always raise a +:exc:`SyntaxError` when passed multiple statements in 'single' mode. Patch +by Weipeng Hong. + +.. + +.. bpo: 45953 +.. date: 2021-12-01-11-54-27 +.. nonce: 2znR0E +.. section: Core and Builtins + +The main interpreter in _PyRuntimeState.interpreters is now statically +allocated (as part of _PyRuntime). Likewise for the initial thread state of +each interpreter. This means less allocation during runtime init, as well +as better memory locality for these key state objects. + +.. + +.. bpo: 45292 +.. date: 2021-11-22-13-05-32 +.. nonce: pfEouJ +.. section: Core and Builtins + +Complete the :pep:`654` implementation: add ``except*``. + +.. + +.. bpo: 43413 +.. date: 2021-05-30-16-37-47 +.. nonce: vYFPPC1 +.. section: Core and Builtins + +Revert changes in ``set.__init__``. Subclass of :class:`set` needs to define +a ``__init__()`` method if it defines a ``__new__()`` method with additional +keyword parameters. + +.. + +.. bpo: 43931 +.. date: 2021-04-24-15-39-23 +.. nonce: zpChDi +.. section: Core and Builtins + +Added the :c:data:`Py_Version` constant which bears the same value as +:c:macro:`PY_VERSION_HEX`. Patch by Gabriele N. Tornetta. + +.. + +.. bpo: 46342 +.. date: 2022-01-11-04-28-09 +.. nonce: 5QVEH1 +.. section: Library + +The ``@typing.final`` decorator now sets the ``__final__`` attribute on the +decorated object to allow runtime introspection. Patch by Jelle Zijlstra. + +.. + +.. bpo: 46328 +.. date: 2022-01-10-11-53-15 +.. nonce: 6i9Wvq +.. section: Library + +Added the :meth:`sys.exception` method which returns the active exception +instance. + +.. + +.. bpo: 46307 +.. date: 2022-01-10-07-51-43 +.. nonce: SKvOIY +.. section: Library + +Add :meth:`string.Template.is_valid` and +:meth:`string.Template.get_identifiers` methods. + +.. + +.. bpo: 46306 +.. date: 2022-01-08-13-53-25 +.. nonce: 1_es8z +.. section: Library + +Assume that :class:`types.CodeType` always has +:attr:`types.CodeType.co_firstlineno` in :mod:`doctest`. + +.. + +.. bpo: 40479 +.. date: 2022-01-07-15-20-19 +.. nonce: EKfr3F +.. section: Library + +Fix :mod:`hashlib` *usedforsecurity* option to work correctly with OpenSSL +3.0.0 in FIPS mode. + +.. + +.. bpo: 46070 +.. date: 2022-01-07-13-51-22 +.. nonce: -axLUW +.. section: Library + +Fix possible segfault when importing the :mod:`asyncio` module from +different sub-interpreters in parallel. Patch by Erlend E. Aasland. + +.. + +.. bpo: 46244 +.. date: 2022-01-06-21-31-14 +.. nonce: hjyfJj +.. section: Library + +Removed ``__slots__`` from :class:`typing.ParamSpec` and +:class:`typing.TypeVar`. They served no purpose. Patch by Arie Bovenberg. + +.. + +.. bpo: 46278 +.. date: 2022-01-06-13-38-00 +.. nonce: wILA80 +.. section: Library + +Reflect ``context`` argument in ``AbstractEventLoop.call_*()`` methods. Loop +implementations already support it. + +.. + +.. bpo: 46269 +.. date: 2022-01-05-18-16-13 +.. nonce: K16Z1S +.. section: Library + +Remove special-casing of ``__new__`` in :meth:`enum.Enum.__dir__`. + +.. + +.. bpo: 46266 +.. date: 2022-01-05-12-48-18 +.. nonce: ACQCgX +.. section: Library + +Improve day constants in :mod:`calendar`. + +Now all constants (`MONDAY` ... `SUNDAY`) are documented, tested, and added +to ``__all__``. + +.. + +.. bpo: 46257 +.. date: 2022-01-04-11-04-20 +.. nonce: _o2ADe +.. section: Library + +Optimized the mean, variance, and stdev functions in the statistics module. +If the input is an iterator, it is consumed in a single pass rather than +eating memory by conversion to a list. The single pass algorithm is about +twice as fast as the previous two pass code. + +.. + +.. bpo: 41011 +.. date: 2022-01-03-21-03-50 +.. nonce: uULmGi +.. section: Library + +Added two new variables to *pyvenv.cfg* which is generated by :mod:`venv` +module: *executable* for the executable and *command* for the command line +used to create the environment. + +.. + +.. bpo: 46239 +.. date: 2022-01-03-12-59-20 +.. nonce: ySVSEy +.. section: Library + +Improve error message when importing :mod:`asyncio.windows_events` on +non-Windows. + +.. + +.. bpo: 46238 +.. date: 2022-01-03-12-19-10 +.. nonce: lANhCi +.. section: Library + +Reuse ``_winapi`` constants in ``asyncio.windows_events``. + +.. + +.. bpo: 46222 +.. date: 2022-01-01-17-34-32 +.. nonce: s2fzZU +.. section: Library + +Adding ``SF_NOCACHE`` sendfile constant for FreeBSD for the posixmodule. + +.. + +.. bpo: 37295 +.. date: 2021-12-27-15-52-28 +.. nonce: s3LPo0 +.. section: Library + +Add fast path for ``0 <= k <= n <= 67`` for :func:`math.comb`. + +.. + +.. bpo: 46176 +.. date: 2021-12-25-11-11-21 +.. nonce: EOY9wd +.. section: Library + +Adding the ``MAP_STACK`` constant for the mmap module. + +.. + +.. bpo: 43424 +.. date: 2021-12-23-14-36-58 +.. nonce: d9x2JZ +.. section: Library + +Deprecate :attr:`webbrowser.MacOSXOSAScript._name` and use ``name`` instead. + +.. + +.. bpo: 45321 +.. date: 2021-12-19-00-00-48 +.. nonce: OyuhaY +.. section: Library + +Added missing error codes to module ``xml.parsers.expat.errors``. + +.. + +.. bpo: 46125 +.. date: 2021-12-18-18-29-07 +.. nonce: LLmcox +.. section: Library + +Refactor tests to test traversable API directly. Includes changes from +importlib 5.4.0. + +.. + +.. bpo: 46118 +.. date: 2021-12-17-16-27-44 +.. nonce: euAy0E +.. section: Library + +Moved importlib.resources and its related functionality to a package. + +.. + +.. bpo: 37578 +.. date: 2021-12-17-13-22-37 +.. nonce: _tluuR +.. section: Library + +Add *include_hidden* parameter to :func:`~glob.glob` and :func:`~glob.iglob` +to match hidden files and directories when using special characters like +``*``, ``**``, ``?`` and ``[]``. + +.. + +.. bpo: 20369 +.. date: 2021-12-17-12-06-40 +.. nonce: zzLuBz +.. section: Library + +:func:`concurrent.futures.wait` no longer blocks forever when given +duplicate Futures. Patch by Kumar Aditya. + +.. + +.. bpo: 46105 +.. date: 2021-12-16-14-30-36 +.. nonce: pprB1K +.. section: Library + +Honor spec when generating requirement specs with urls and extras +(importlib_metadata 4.8.3). + +.. + +.. bpo: 44893 +.. date: 2021-12-16-13-54-55 +.. nonce: I7aLiW +.. section: Library + +EntryPoint objects are no longer tuples. Recommended means to access is by +attribute ('.name', '.group') or accessor ('.load()'). Access by index is +deprecated and will raise deprecation warning. + +.. + +.. bpo: 22815 +.. date: 2021-12-16-12-54-21 +.. nonce: 0NRH8s +.. section: Library + +Print unexpected successes together with failures and errors in summary in +:class:`unittest.TextTestResult`. + +.. + +.. bpo: 22047 +.. date: 2021-12-15-19-24-54 +.. nonce: gBV4vT +.. section: Library + +Calling :meth:`add_argument_group` on an argument group is deprecated. +Calling :meth:`add_argument_group` or :meth:`add_mutually_exclusive_group` +on a mutually exclusive group is deprecated. + +These features were never supported and do not always work correctly. The +functions exist on the API by accident through inheritance and will be +removed in the future. + +.. + +.. bpo: 26952 +.. date: 2021-12-14-13-18-45 +.. nonce: hjhISq +.. section: Library + +:mod:`argparse` raises :exc:`ValueError` with clear message when trying to +render usage for an empty mutually-exclusive group. Previously it raised a +cryptic :exc:`IndexError`. + +.. + +.. bpo: 45615 +.. date: 2021-12-13-15-51-16 +.. nonce: hVx83Q +.. section: Library + +Functions in the :mod:`traceback` module raise :exc:`TypeError` rather than +:exc:`AttributeError` when an exception argument is not of type +:exc:`BaseException`. + +.. + +.. bpo: 16594 +.. date: 2021-12-12-13-41-47 +.. nonce: yfC7L4 +.. section: Library + +Add allow allow_reuse_port flag in socketserver. + +.. + +.. bpo: 27718 +.. date: 2021-12-11-22-51-30 +.. nonce: MgQiGl +.. section: Library + +Fix help for the :mod:`signal` module. Some functions (e.g. ``signal()`` and +``getsignal()``) were omitted. + +.. + +.. bpo: 46032 +.. date: 2021-12-11-15-45-07 +.. nonce: HmciLT +.. section: Library + +The ``registry()`` method of :func:`functools.singledispatch` functions +checks now the first argument or the first parameter annotation and raises a +TypeError if it is not supported. Previously unsupported "types" were +ignored (e.g. ``typing.List[int]``) or caused an error at calling time (e.g. +``list[int]``). + +.. + +.. bpo: 46014 +.. date: 2021-12-10-03-13-57 +.. nonce: 3xYdST +.. section: Library + +Add ability to use ``typing.Union`` and ``types.UnionType`` as dispatch +argument to ``functools.singledispatch``. Patch provided by Yurii Karabas. + +.. + +.. bpo: 27062 +.. date: 2021-12-09-11-50-32 +.. nonce: R5vii6 +.. section: Library + +Add :attr:`__all__` to :mod:`inspect`, patch by Kumar Aditya. + +.. + +.. bpo: 46018 +.. date: 2021-12-09-00-44-42 +.. nonce: hkTI7v +.. section: Library + +Ensure that :func:`math.expm1` does not raise on underflow. + +.. + +.. bpo: 46016 +.. date: 2021-12-08-19-15-03 +.. nonce: s9PuyF +.. section: Library + +Adding :attr:`F_DUP2FD` and :attr:`F_DUP2FD_CLOEXEC` constants from FreeBSD +into the fcntl module. + +.. + +.. bpo: 45755 +.. date: 2021-12-07-21-55-22 +.. nonce: bRqKGa +.. section: Library + +:mod:`typing` generic aliases now reveal the class attributes of the +original generic class when passed to ``dir()``. This was the behavior up to +Python 3.6, but was changed in 3.7-3.9. + +.. + +.. bpo: 45874 +.. date: 2021-12-02-11-55-45 +.. nonce: dtJIsN +.. section: Library + +The empty query string, consisting of no query arguments, is now handled +correctly in ``urllib.parse.parse_qsl``. This caused problems before when +strict parsing was enabled. + +.. + +.. bpo: 44674 +.. date: 2021-11-29-19-37-20 +.. nonce: NijWLt +.. section: Library + +Change how dataclasses disallows mutable default values. It used to use a +list of known types (list, dict, set). Now it disallows unhashable objects +to be defaults. It's using unhashability as a proxy for mutability. Patch +by Eric V. Smith, idea by Raymond Hettinger. + +.. + +.. bpo: 23882 +.. date: 2021-11-24-19-09-14 +.. nonce: _tctCv +.. section: Library + +Remove namespace package (PEP 420) support from unittest discovery. It was +introduced in Python 3.4 but has been broken since Python 3.7. + +.. + +.. bpo: 25066 +.. date: 2021-11-24-12-25-42 +.. nonce: YIcIkn +.. section: Library + +Added a :meth:`__repr__` method to :class:`multiprocessing.Event` objects, +patch by Kumar Aditya. + +.. + +.. bpo: 45643 +.. date: 2021-10-28-11-40-59 +.. nonce: jeiPiX +.. section: Library + +Added :data:`signal.SIGSTKFLT` on platforms where this signal is defined. + +.. + +.. bpo: 44092 +.. date: 2021-05-19-12-35-49 +.. nonce: hiSlI5 +.. section: Library + +Fetch across rollback no longer raises :exc:`~sqlite3.InterfaceError`. +Instead we leave it to the SQLite library to handle these cases. Patch by +Erlend E. Aasland. + +.. + +.. bpo: 42413 +.. date: 2020-11-26-10-23-46 +.. nonce: HFikOl +.. section: Library + +Replace ``concurrent.futures.TimeoutError`` and ``asyncio.TimeoutError`` +with builtin :exc:`TimeoutError`, keep these names as deprecated aliases. + +.. + +.. bpo: 46196 +.. date: 2021-12-30-19-12-24 +.. nonce: UvQ8Sq +.. section: Documentation + +Document method :meth:`cmd.Cmd.columnize`. + +.. + +.. bpo: 46120 +.. date: 2021-12-21-12-45-57 +.. nonce: PE0DmJ +.. section: Documentation + +State that ``|`` is preferred for readability over ``Union`` in the +:mod:`typing` docs. + +.. + +.. bpo: 46109 +.. date: 2021-12-16-21-13-55 +.. nonce: 0-RNzu +.. section: Documentation + +Extracted ``importlib.resources`` and ``importlib.resources.abc`` +documentation into separate files. + +.. + +.. bpo: 19737 +.. date: 2021-11-28-22-43-21 +.. nonce: cOOubB +.. section: Documentation + +Update the documentation for the :func:`globals` function. + +.. + +.. bpo: 46296 +.. date: 2022-01-08-00-00-38 +.. nonce: vqxgTm +.. section: Tests + +Add a test case for :mod:`enum` with ``_use_args_ == True`` and +``_member_type_ == object``. + +.. + +.. bpo: 46205 +.. date: 2022-01-07-14-06-12 +.. nonce: dnc2OC +.. section: Tests + +Fix hang in runtest_mp due to race condition + +.. + +.. bpo: 46263 +.. date: 2022-01-06-15-45-34 +.. nonce: bJXek6 +.. section: Tests + +Fix test_capi on FreeBSD 14-dev: instruct jemalloc to not fill freed memory +with junk byte. + +.. + +.. bpo: 46262 +.. date: 2022-01-05-01-38-45 +.. nonce: MhiLWP +.. section: Tests + +Cover ``ValueError`` path in tests for :meth:`enum.Flag._missing_`. + +.. + +.. bpo: 46150 +.. date: 2021-12-23-13-42-15 +.. nonce: RhtADs +.. section: Tests + +Now ``fakename`` in ``test_pathlib.PosixPathTest.test_expanduser`` is +checked to be non-existent. + +.. + +.. bpo: 46129 +.. date: 2021-12-19-12-20-57 +.. nonce: I3MunH +.. section: Tests + +Rewrite ``asyncio.locks`` tests with +:class:`unittest.IsolatedAsyncioTestCase` usage. + +.. + +.. bpo: 23819 +.. date: 2021-12-19-08-44-32 +.. nonce: 9ueiII +.. section: Tests + +Fixed :mod:`asyncio` tests in python optimized mode. Patch by Kumar Aditya. + +.. + +.. bpo: 46114 +.. date: 2021-12-17-14-46-19 +.. nonce: 9iyZ_9 +.. section: Tests + +Fix test case for OpenSSL 3.0.1 version. OpenSSL 3.0 uses ``0xMNN00PP0L``. + +.. + +.. bpo: 44133 +.. date: 2022-01-12-13-42-16 +.. nonce: NgyNAh +.. section: Build + +When Python is configured with :option:`--without-static-libpython`, the +Python static library (libpython.a) is no longer built. Patch by Victor +Stinner. + +.. + +.. bpo: 44133 +.. date: 2022-01-12-13-34-52 +.. nonce: HYCNXb +.. section: Build + +When Python is built without :option:`--enable-shared`, the ``python`` +program is now linked to object files, rather than being linked to the +Python static library (libpython.a), to make sure that all symbols are +exported. Previously, the linker omitted some symbols like the +:c:func:`Py_FrozenMain` function. Patch by Victor Stinner. + +.. + +.. bpo: 40280 +.. date: 2022-01-12-10-22-23 +.. nonce: 5maBz8 +.. section: Build + +The ``configure`` script has a new option ``--with-emscripten-target`` to +select browser or node as Emscripten build target. + +.. + +.. bpo: 46315 +.. date: 2022-01-09-15-48-49 +.. nonce: NdCRLu +.. section: Build + +Added and fixed ``#ifdef HAVE_FEATURE`` checks for functionality that is not +available on WASI platform. + +.. + +.. bpo: 45723 +.. date: 2022-01-07-08-33-45 +.. nonce: uq2nBU +.. section: Build + +Fixed a regression in ``configure`` check for :func:`select.epoll`. + +.. + +.. bpo: 46263 +.. date: 2022-01-05-02-58-10 +.. nonce: xiv8NU +.. section: Build + +``configure`` no longer sets ``MULTIARCH`` on FreeBSD platforms. + +.. + +.. bpo: 46106 +.. date: 2021-12-20-07-10-41 +.. nonce: 5qcv3L +.. section: Build + +Updated OpenSSL to 1.1.1m in Windows builds, macOS installer builds, and CI. +Patch by Kumar Aditya. + +.. + +.. bpo: 46088 +.. date: 2021-12-16-14-18-07 +.. nonce: 8UUuAd +.. section: Build + +Automatically detect or install bootstrap Python runtime when building from +Visual Studio. + +.. + +.. bpo: 46072 +.. date: 2021-12-15-10-37-44 +.. nonce: GgeAU3 +.. section: Build + +Add a --with-pystats configure option to turn on internal statistics +gathering. + +.. + +.. bpo: 40280 +.. date: 2021-12-13-21-03-52 +.. nonce: b7NG4Y +.. section: Build + +A new directory ``Tools/wasm`` contains WebAssembly-related helpers like +``config.site`` override for wasm32-emscripten, wasm assets generator to +bundle the stdlib, and a README. + +.. + +.. bpo: 46023 +.. date: 2021-12-09-10-25-11 +.. nonce: PLpNB6 +.. section: Build + +:program:`makesetup` no longer builds extensions that have been marked as +*disabled*. This allows users to disable modules in ``Modules/Setup.local``. + +.. + +.. bpo: 45949 +.. date: 2021-12-02-23-21-18 +.. nonce: OTSo9X +.. section: Build + +Use pure Python ``freeze_module`` for all but importlib bootstrap files. +``--with-freeze-module`` :program:`configure` option is no longer needed for +cross builds. + +.. + +.. bpo: 46217 +.. date: 2022-01-07-22-55-11 +.. nonce: tgJEsB +.. section: Windows + +Removed parameter that is unsupported on Windows 8.1 and early Windows 10 +and may have caused build or runtime failures. + +.. + +.. bpo: 40477 +.. date: 2022-01-02-21-56-53 +.. nonce: W3nnM6 +.. section: macOS + +The Python Launcher app for macOS now properly launches scripts and, if +necessary, the Terminal app when running on recent macOS releases. + +.. + +.. bpo: 46236 +.. date: 2022-01-05-10-16-16 +.. nonce: pcmVQw +.. section: C API + +Fix a bug in :c:func:`PyFunction_GetAnnotations` that caused it to return a +``tuple`` instead of a ``dict``. + +.. + +.. bpo: 46140 +.. date: 2021-12-21-22-56-36 +.. nonce: dvXkYK +.. section: C API + +:c:func:`PyBuffer_GetPointer`, :c:func:`PyBuffer_FromContiguous`, +:c:func:`PyBuffer_ToContiguous` and :c:func:`PyMemoryView_FromBuffer` now +take buffer info by ``const Py_buffer *`` instead of ``Py_buffer *``, as +they do not need mutability. :c:func:`PyBuffer_FromContiguous` also now +takes the source buffer as ``const void *``, and similarly +:c:func:`PyBuffer_GetPointer` takes the strides as ``const Py_ssize_t *``. + +.. + +.. bpo: 45855 +.. date: 2021-12-12-10-09-02 +.. nonce: MVsTDj +.. section: C API + +Document that the *no_block* argument to :c:func:`PyCapsule_Import` is a +no-op now. + +.. + +.. bpo: 45855 +.. date: 2021-12-11-08-41-36 +.. nonce: Lq2_gR +.. section: C API + +Replaced deprecated usage of :c:func:`PyImport_ImportModuleNoBlock` with +:c:func:`PyImport_ImportModule` in stdlib modules. Patch by Kumar Aditya. + +.. + +.. bpo: 46007 +.. date: 2021-12-08-12-41-51 +.. nonce: sMgDLz +.. section: C API + +The :c:func:`PyUnicode_CHECK_INTERNED` macro has been excluded from the +limited C API. It was never usable there, because it used internal +structures which are not available in the limited C API. Patch by Victor +Stinner. |