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diff --git a/Misc/NEWS.d/3.11.0b4.rst b/Misc/NEWS.d/3.11.0b4.rst new file mode 100644 index 0000000000..144a732220 --- /dev/null +++ b/Misc/NEWS.d/3.11.0b4.rst @@ -0,0 +1,1120 @@ +.. date: 2022-06-15-20-09-23 +.. gh-issue: 87389 +.. nonce: QVaC3f +.. release date: 2022-07-11 +.. section: Security + +:mod:`http.server`: Fix an open redirection vulnerability in the HTTP server +when an URI path starts with ``//``. Vulnerability discovered, and initial +fix proposed, by Hamza Avvan. + +.. + +.. date: 2022-06-03-12-52-53 +.. gh-issue: 79096 +.. nonce: YVoxgC +.. section: Security + +LWPCookieJar and MozillaCookieJar create files with file mode 600 instead of +644 (Microsoft Windows is not affected) + +.. + +.. date: 2022-05-19-08-53-07 +.. gh-issue: 92888 +.. nonce: TLtR9W +.. section: Security + +Fix ``memoryview`` use after free when accessing the backing buffer in +certain cases. + +.. + +.. date: 2022-04-27-18-25-30 +.. gh-issue: 68966 +.. nonce: gjS8zs +.. section: Security + +The deprecated mailcap module now refuses to inject unsafe text (filenames, +MIME types, parameters) into shell commands. Instead of using such text, it +will warn and act as if a match was not found (or for test commands, as if +the test failed). + +.. + +.. date: 2022-07-08-16-44-11 +.. gh-issue: 94694 +.. nonce: VkL2CM +.. section: Core and Builtins + +Fix an issue that could cause code with multi-line method lookups to have +misleading or incorrect column offset information. In some cases (when +compiling a hand-built AST) this could have resulted in a hard crash of the +interpreter. + +.. + +.. date: 2022-07-08-11-44-45 +.. gh-issue: 93252 +.. nonce: i2358c +.. section: Core and Builtins + +Fix an issue that caused internal frames to outlive failed Python function +calls, possibly resulting in memory leaks or hard interpreter crashes. + +.. + +.. date: 2022-07-07-21-13-25 +.. gh-issue: 94215 +.. nonce: _Sv9Ms +.. section: Core and Builtins + +Fix an issue where exceptions raised by line-tracing events would cause +frames to be left in an invalid state, possibly resulting in a hard crash of +the interpreter. + +.. + +.. date: 2022-07-06-14-02-26 +.. gh-issue: 92228 +.. nonce: 44Cbly +.. section: Core and Builtins + +Disable the compiler's inline-small-exit-blocks optimization for exit blocks +that are associated with source code lines. This fixes a bug where the +debugger cannot tell where an exception handler ends and the following code +block begins. + +.. + +.. date: 2022-07-01-20-00-19 +.. gh-issue: 94485 +.. nonce: mo5st7 +.. section: Core and Builtins + +Line number of a module's ``RESUME`` instruction is set to 0 as specified in +:pep:`626`. + +.. + +.. date: 2022-06-30-15-07-26 +.. gh-issue: 94438 +.. nonce: btzHSk +.. section: Core and Builtins + +Account for instructions that can push NULL to the stack when setting line +number in a frame. Prevents some (unlikely) crashes. + +.. + +.. date: 2022-06-29-22-18-36 +.. gh-issue: 91719 +.. nonce: 3APYYI +.. section: Core and Builtins + +Reload ``opcode`` when raising ``unknown opcode error`` in the interpreter +main loop, for C compilers to generate dispatching code independently. + +.. + +.. date: 2022-06-29-15-45-04 +.. gh-issue: 94329 +.. nonce: olUQyk +.. section: Core and Builtins + +Compile and run code with unpacking of extremely large sequences (1000s of +elements). Such code failed to compile. It now compiles and runs correctly. + +.. + +.. date: 2022-06-28-14-20-36 +.. gh-issue: 94360 +.. nonce: DiEnen +.. section: Core and Builtins + +Fixed a tokenizer crash when reading encoded files with syntax errors from +``stdin`` with non utf-8 encoded text. Patch by Pablo Galindo + +.. + +.. date: 2022-06-28-12-41-17 +.. gh-issue: 88116 +.. nonce: A7fEl_ +.. section: Core and Builtins + +Fix an issue when reading line numbers from code objects if the encoded line +numbers are close to ``INT_MIN``. Patch by Pablo Galindo + +.. + +.. date: 2022-06-28-10-08-06 +.. gh-issue: 94262 +.. nonce: m-HWUZ +.. section: Core and Builtins + +Don't create frame objects for incomplete frames. Prevents the creation of +generators and closures from being observable to Python and C extensions, +restoring the behavior of 3.10 and earlier. + +.. + +.. date: 2022-06-26-14-37-03 +.. gh-issue: 94192 +.. nonce: ab7tn7 +.. section: Core and Builtins + +Fix error for dictionary literals with invalid expression as value. + +.. + +.. date: 2022-06-24-14-06-20 +.. gh-issue: 93883 +.. nonce: 8jVQQ4 +.. section: Core and Builtins + +Revise the display strategy of traceback enhanced error locations. The +indicators are only shown when the location doesn't span the whole line. + +.. + +.. date: 2022-06-20-13-48-57 +.. gh-issue: 94021 +.. nonce: o78q3G +.. section: Core and Builtins + +Fix unreachable code warning in ``Python/specialize.c``. + +.. + +.. date: 2022-06-13-13-55-34 +.. gh-issue: 93516 +.. nonce: HILrDl +.. section: Core and Builtins + +Store offset of first traceable instruction in code object to avoid having +to recompute it for each instruction when tracing. + +.. + +.. date: 2022-06-13-10-48-09 +.. gh-issue: 93516 +.. nonce: yJSait +.. section: Core and Builtins + +Lazily create a table mapping bytecode offsets to line numbers to speed up +calculation of line numbers when tracing. + +.. + +.. date: 2022-06-12-19-31-56 +.. gh-issue: 89828 +.. nonce: bq02M7 +.. section: Core and Builtins + +:class:`types.GenericAlias` no longer relays the ``__class__`` attribute. +For example, ``isinstance(list[int], type)`` no longer returns ``True``. + +.. + +.. date: 2022-06-10-12-03-17 +.. gh-issue: 93671 +.. nonce: idkQqG +.. section: Core and Builtins + +Fix some exponential backtrace case happening with deeply nested sequence +patterns in match statements. Patch by Pablo Galindo + +.. + +.. date: 2022-06-10-10-31-18 +.. gh-issue: 93662 +.. nonce: -7RSC1 +.. section: Core and Builtins + +Make sure that the end column offsets are correct in multi-line method +calls. Previously, the end column could precede the column offset. + +.. + +.. date: 2022-06-09-19-19-02 +.. gh-issue: 93461 +.. nonce: 5DqP1e +.. section: Core and Builtins + +:func:`importlib.invalidate_caches` now drops entries from +:data:`sys.path_importer_cache` with a relative path as name. This solves a +caching issue when a process changes its current working directory. + +``FileFinder`` no longer inserts a dot in the path, e.g. ``/egg/./spam`` is +now ``/egg/spam``. + +.. + +.. date: 2022-06-01-17-47-40 +.. gh-issue: 93418 +.. nonce: 24dJuc +.. section: Core and Builtins + +Fixed an assert where an f-string has an equal sign '=' following an +expression, but there's no trailing brace. For example, f"{i=". + +.. + +.. date: 2022-05-31-16-36-30 +.. gh-issue: 93382 +.. nonce: Jf6gAj +.. section: Core and Builtins + +Cache the result of :c:func:`PyCode_GetCode` function to restore the O(1) +lookup of the :attr:`~types.CodeType.co_code` attribute. + +.. + +.. date: 2022-05-30-15-35-42 +.. gh-issue: 93354 +.. nonce: RZk8gs +.. section: Core and Builtins + +Use exponential backoff for specialization counters in the interpreter. Can +reduce the number of failed specializations significantly and avoid slowdown +for those parts of a program that are not suitable for specialization. + +.. + +.. date: 2022-05-20-09-25-34 +.. gh-issue: 93021 +.. nonce: k3Aji2 +.. section: Core and Builtins + +Fix the :attr:`__text_signature__` for :meth:`__get__` methods implemented +in C. Patch by Jelle Zijlstra. + +.. + +.. date: 2022-05-18-18-34-45 +.. gh-issue: 92930 +.. nonce: kpYPOb +.. section: Core and Builtins + +Fixed a crash in ``_pickle.c`` from mutating collections during +``__reduce__`` or ``persistent_id``. + +.. + +.. date: 2022-05-18-08-32-33 +.. gh-issue: 92914 +.. nonce: tJUeTD +.. section: Core and Builtins + +Always round the allocated size for lists up to the nearest even number. + +.. + +.. date: 2022-05-17-20-41-43 +.. gh-issue: 92858 +.. nonce: eIXJTn +.. section: Core and Builtins + +Improve error message for some suites with syntax error before ':' + +.. + +.. bpo: 46142 +.. date: 2022-01-02-14-53-59 +.. nonce: WayjgT +.. section: Core and Builtins + +Make ``--help`` output shorter by moving some info to the new ``--help-env`` +and ``--help-xoptions`` command-line options. Also add ``--help-all`` option +to print complete usage. + +.. + +.. date: 2022-07-11-10-41-48 +.. gh-issue: 94736 +.. nonce: EbsgeK +.. section: Library + +Fix crash when deallocating an instance of a subclass of +``_multiprocessing.SemLock``. Patch by Kumar Aditya. + +.. + +.. date: 2022-07-07-15-46-55 +.. gh-issue: 94637 +.. nonce: IYEiUM +.. section: Library + +:meth:`SSLContext.set_default_verify_paths` now releases the GIL around +``SSL_CTX_set_default_verify_paths`` call. The function call performs I/O +and CPU intensive work. + +.. + +.. date: 2022-07-06-16-01-08 +.. gh-issue: 94607 +.. nonce: Q6RYfz +.. section: Library + +Fix subclassing complex generics with type variables in :mod:`typing`. +Previously an error message saying ``Some type variables ... are not listed +in Generic[...]`` was shown. :mod:`typing` no longer populates +``__parameters__`` with the ``__parameters__`` of a Python class. + +.. + +.. date: 2022-07-06-14-45-12 +.. gh-issue: 93910 +.. nonce: iZcp67 +.. section: Library + +The ability to access the other values of an enum on an enum (e.g. +``Color.RED.BLUE``) has been restored in order to fix a performance +regression. + +.. + +.. date: 2022-07-06-06-02-02 +.. gh-issue: 93896 +.. nonce: vIgWGr +.. section: Library + +Fix :func:`asyncio.run` and :class:`unittest.IsolatedAsyncioTestCase` to +always the set event loop as it was done in Python 3.10 and earlier. Patch +by Kumar Aditya. + +.. + +.. date: 2022-07-02-19-46-30 +.. gh-issue: 94510 +.. nonce: xOatDC +.. section: Library + +Re-entrant calls to :func:`sys.setprofile` and :func:`sys.settrace` now +raise :exc:`RuntimeError`. Patch by Pablo Galindo. + +.. + +.. date: 2022-06-29-09-48-37 +.. gh-issue: 92336 +.. nonce: otA6c6 +.. section: Library + +Fix bug where :meth:`linecache.getline` fails on bad files with +:exc:`UnicodeDecodeError` or :exc:`SyntaxError`. It now returns an empty +string as per the documentation. + +.. + +.. date: 2022-06-29-04-42-56 +.. gh-issue: 94398 +.. nonce: YOq_bJ +.. section: Library + +Once a :class:`asyncio.TaskGroup` has started shutting down (i.e., at least +one task has failed and the task group has started cancelling the remaining +tasks), it should not be possible to add new tasks to the task group. + +.. + +.. date: 2022-06-25-16-27-02 +.. gh-issue: 94254 +.. nonce: beP16v +.. section: Library + +Fixed types of :mod:`struct` module to be immutable. Patch by Kumar Aditya. + +.. + +.. date: 2022-06-24-19-23-59 +.. gh-issue: 94207 +.. nonce: VhS1eS +.. section: Library + +Made :class:`_struct.Struct` GC-tracked in order to fix a reference leak in +the :mod:`_struct` module. + +.. + +.. date: 2022-06-23-13-12-05 +.. gh-issue: 91742 +.. nonce: sNytVX +.. section: Library + +Fix :mod:`pdb` crash after jump caused by a null pointer dereference. Patch +by Kumar Aditya. + +.. + +.. date: 2022-06-22-11-16-11 +.. gh-issue: 94101 +.. nonce: V9vDG8 +.. section: Library + +Manual instantiation of :class:`ssl.SSLSession` objects is no longer allowed +as it lead to misconfigured instances that crashed the interpreter when +attributes where accessed on them. + +.. + +.. date: 2022-06-21-11-40-31 +.. gh-issue: 84753 +.. nonce: FW1pxO +.. section: Library + +:func:`inspect.iscoroutinefunction`, :func:`inspect.isgeneratorfunction`, +and :func:`inspect.isasyncgenfunction` now properly return ``True`` for +duck-typed function-like objects like instances of +:class:`unittest.mock.AsyncMock`. + +This makes :func:`inspect.iscoroutinefunction` consistent with the behavior +of :func:`asyncio.iscoroutinefunction`. Patch by Mehdi ABAAKOUK. + +.. + +.. date: 2022-06-20-23-14-43 +.. gh-issue: 94028 +.. nonce: UofEcX +.. section: Library + +Fix a regression in the :mod:`sqlite3` where statement objects were not +properly cleared and reset after use in cursor iters. The regression was +introduced by PR 27884 in Python 3.11a1. Patch by Erlend E. Aasland. + +.. + +.. date: 2022-06-16-11-16-53 +.. gh-issue: 93820 +.. nonce: 00X0Y5 +.. section: Library + +Pickle :class:`enum.Flag` by name. + +.. + +.. date: 2022-06-16-09-24-50 +.. gh-issue: 93847 +.. nonce: kuv8bN +.. section: Library + +Fix repr of enum of generic aliases. + +.. + +.. date: 2022-06-15-21-35-11 +.. gh-issue: 91404 +.. nonce: 39TZzW +.. section: Library + +Revert the :mod:`re` memory leak when a match is terminated by a signal or +memory allocation failure as the implemented fix caused a major performance +regression. + +.. + +.. date: 2022-06-15-21-28-16 +.. gh-issue: 83499 +.. nonce: u3DQJ- +.. section: Library + +Fix double closing of file description in :mod:`tempfile`. + +.. + +.. date: 2022-06-15-21-20-02 +.. gh-issue: 93820 +.. nonce: FAMLY8 +.. section: Library + +Fixed a regression when :func:`copy.copy`-ing :class:`enum.Flag` with +multiple flag members. + +.. + +.. date: 2022-06-11-13-32-17 +.. gh-issue: 79512 +.. nonce: A1KTDr +.. section: Library + +Fixed names and ``__module__`` value of :mod:`weakref` classes +:class:`~weakref.ReferenceType`, :class:`~weakref.ProxyType`, +:class:`~weakref.CallableProxyType`. It makes them pickleable. + +.. + +.. date: 2022-06-09-17-15-26 +.. gh-issue: 91389 +.. nonce: OE4vS5 +.. section: Library + +Fix an issue where :mod:`dis` utilities could report missing or incorrect +position information in the presence of ``CACHE`` entries. + +.. + +.. date: 2022-06-09-14-44-21 +.. gh-issue: 93626 +.. nonce: sfghs46 +.. section: Library + +Set ``__future__.annotations`` to have a ``None`` mandatoryRelease to +indicate that it is currently 'TBD'. + +.. + +.. date: 2022-06-09-10-12-55 +.. gh-issue: 90473 +.. nonce: 683m_C +.. section: Library + +Emscripten and WASI have no home directory and cannot provide :pep:`370` +user site directory. + +.. + +.. date: 2022-06-08-20-11-02 +.. gh-issue: 90494 +.. nonce: LIZT85 +.. section: Library + +:func:`copy.copy` and :func:`copy.deepcopy` now always raise a TypeError if +``__reduce__()`` returns a tuple with length 6 instead of silently ignore +the 6th item or produce incorrect result. + +.. + +.. date: 2022-06-07-14-53-46 +.. gh-issue: 90549 +.. nonce: T4FMKY +.. section: Library + +Fix a multiprocessing bug where a global named resource (such as a +semaphore) could leak when a child process is spawned (as opposed to +forked). + +.. + +.. date: 2022-06-06-13-19-43 +.. gh-issue: 93521 +.. nonce: _vE8m9 +.. section: Library + +Fixed a case where dataclasses would try to add ``__weakref__`` into the +``__slots__`` for a dataclass that specified ``weakref_slot=True`` when it +was already defined in one of its bases. This resulted in a ``TypeError`` +upon the new class being created. + +.. + +.. date: 2022-06-06-12-58-27 +.. gh-issue: 79579 +.. nonce: e8rB-M +.. section: Library + +:mod:`sqlite3` now correctly detects DML queries with leading comments. +Patch by Erlend E. Aasland. + +.. + +.. date: 2022-06-05-22-22-42 +.. gh-issue: 93421 +.. nonce: 43UO_8 +.. section: Library + +Update :data:`sqlite3.Cursor.rowcount` when a DML statement has run to +completion. This fixes the row count for SQL queries like ``UPDATE ... +RETURNING``. Patch by Erlend E. Aasland. + +.. + +.. date: 2022-06-01-11-24-13 +.. gh-issue: 91162 +.. nonce: NxvU_u +.. section: Library + +Support splitting of unpacked arbitrary-length tuple over ``TypeVar`` and +``TypeVarTuple`` parameters. For example: + +* ``A[T, *Ts][*tuple[int, ...]]`` -> ``A[int, *tuple[int, ...]]`` +* ``A[*Ts, T][*tuple[int, ...]]`` -> ``A[*tuple[int, ...], int]`` + +.. + +.. date: 2022-05-31-14-58-40 +.. gh-issue: 93353 +.. nonce: 9Hvm6o +.. section: Library + +Fix the :func:`importlib.resources.as_file` context manager to remove the +temporary file if destroyed late during Python finalization: keep a local +reference to the :func:`os.remove` function. Patch by Victor Stinner. + +.. + +.. date: 2022-05-30-21-42-50 +.. gh-issue: 83658 +.. nonce: 01Ntx0 +.. section: Library + +Make :class:`multiprocessing.Pool` raise an exception if +``maxtasksperchild`` is not ``None`` or a positive int. + +.. + +.. date: 2022-05-26-23-10-55 +.. gh-issue: 93156 +.. nonce: 4XfDVN +.. section: Library + +Accessing the :attr:`pathlib.PurePath.parents` sequence of an absolute path +using negative index values produced incorrect results. + +.. + +.. date: 2022-05-24-11-19-04 +.. gh-issue: 74696 +.. nonce: -cnf-A +.. section: Library + +:func:`shutil.make_archive` no longer temporarily changes the current +working directory during creation of standard ``.zip`` or tar archives. + +.. + +.. date: 2022-05-22-16-08-01 +.. gh-issue: 89973 +.. nonce: jc-Q4g +.. section: Library + +Fix :exc:`re.error` raised in :mod:`fnmatch` if the pattern contains a +character range with upper bound lower than lower bound (e.g. ``[c-a]``). +Now such ranges are interpreted as empty ranges. + +.. + +.. date: 2022-05-19-17-49-58 +.. gh-issue: 92932 +.. nonce: o2peTh +.. section: Library + +Now :func:`~dis.dis` and :func:`~dis.get_instructions` handle operand values +for instructions prefixed by ``EXTENDED_ARG_QUICK``. Patch by Sam Gross and +Dong-hee Na. + +.. + +.. date: 2022-04-15-17-38-55 +.. gh-issue: 91577 +.. nonce: Ah7cLL +.. section: Library + +Move imports in :class:`~multiprocessing.SharedMemory` methods to module +level so that they can be executed late in python finalization. + +.. + +.. date: 2022-04-11-16-55-41 +.. gh-issue: 91456 +.. nonce: DK3KKl +.. section: Library + +Deprecate current default auto() behavior: In 3.13 the default will be for +for auto() to always return the largest member value incremented by 1, and +to raise if incompatible value types are used. + +.. + +.. bpo: 47231 +.. date: 2022-04-08-22-12-11 +.. nonce: lvyglt +.. section: Library + +Fixed an issue with inconsistent trailing slashes in tarfile longname +directories. + +.. + +.. bpo: 46755 +.. date: 2022-02-15-12-40-48 +.. nonce: zePJfx +.. section: Library + +In :class:`QueueHandler`, clear ``stack_info`` from :class:`LogRecord` to +prevent stack trace from being written twice. + +.. + +.. bpo: 46197 +.. date: 2022-01-03-15-07-06 +.. nonce: Z0djv6 +.. section: Library + +Fix :mod:`ensurepip` environment isolation for subprocess running ``pip``. + +.. + +.. bpo: 45924 +.. date: 2021-12-27-15-32-15 +.. nonce: 0ZpHX2 +.. section: Library + +Fix :mod:`asyncio` incorrect traceback when future's exception is raised +multiple times. Patch by Kumar Aditya. + +.. + +.. bpo: 34828 +.. date: 2018-09-28-22-18-03 +.. nonce: 5Zyi_S +.. section: Library + +:meth:`sqlite3.Connection.iterdump` now handles databases that use +``AUTOINCREMENT`` in one or more tables. + +.. + +.. date: 2022-07-07-08-42-05 +.. gh-issue: 94321 +.. nonce: pmCIPb +.. section: Documentation + +Document the :pep:`246` style protocol type +:class:`sqlite3.PrepareProtocol`. + +.. + +.. date: 2022-06-16-10-10-59 +.. gh-issue: 61162 +.. nonce: 1ypkG8 +.. section: Documentation + +Clarify :mod:`sqlite3` behavior when +:ref:`sqlite3-connection-context-manager`. + +.. + +.. date: 2022-06-15-12-12-49 +.. gh-issue: 87260 +.. nonce: epyI7D +.. section: Documentation + +Align :mod:`sqlite3` argument specs with the actual implementation. + +.. + +.. date: 2022-05-29-21-22-54 +.. gh-issue: 86986 +.. nonce: lFXw8j +.. section: Documentation + +The minimum Sphinx version required to build the documentation is now 3.2. + +.. + +.. date: 2022-05-26-14-51-25 +.. gh-issue: 88831 +.. nonce: 5Cccr5 +.. section: Documentation + +Augmented documentation of asyncio.create_task(). Clarified the need to keep +strong references to tasks and added a code snippet detailing how to to +this. + +.. + +.. bpo: 47161 +.. date: 2022-03-30-17-56-01 +.. nonce: gesHfS +.. section: Documentation + +Document that :class:`pathlib.PurePath` does not collapse initial double +slashes because they denote UNC paths. + +.. + +.. date: 2022-07-05-17-53-13 +.. gh-issue: 91330 +.. nonce: Qys5IL +.. section: Tests + +Added more tests for :mod:`dataclasses` to cover behavior with data +descriptor-based fields. + +# Write your Misc/NEWS entry below. It should be a simple ReST paragraph. # +Don't start with "- Issue #<n>: " or "- gh-issue-<n>: " or that sort of +stuff. +########################################################################### + +.. + +.. date: 2022-06-27-21-27-20 +.. gh-issue: 94208 +.. nonce: VR6HX- +.. section: Tests + +``test_ssl`` is now checking for supported TLS version and protocols in more +tests. + +.. + +.. date: 2022-06-27-08-53-40 +.. gh-issue: 94315 +.. nonce: MoZT9t +.. section: Tests + +Tests now check for DAC override capability instead of relying on +:func:`os.geteuid`. + +.. + +.. date: 2022-06-17-15-20-09 +.. gh-issue: 93951 +.. nonce: CW1Vv4 +.. section: Tests + +In test_bdb.StateTestCase.test_skip, avoid including auxiliary importers. + +.. + +.. date: 2022-06-17-13-55-11 +.. gh-issue: 93957 +.. nonce: X4ovYV +.. section: Tests + +Provide nicer error reporting from subprocesses in +test_venv.EnsurePipTest.test_with_pip. + +.. + +.. date: 2022-06-10-21-18-14 +.. gh-issue: 84461 +.. nonce: 9TAb26 +.. section: Tests + +``run_tests.py`` now handles cross compiling env vars correctly and pass +``HOSTRUNNER`` to regression tests. + +.. + +.. date: 2022-06-08-22-32-56 +.. gh-issue: 93616 +.. nonce: e5Kkx2 +.. section: Tests + +``test_modulefinder`` now creates a temporary directory in +``ModuleFinderTest.setUp()`` instead of module scope. + +.. + +.. date: 2022-06-08-14-17-59 +.. gh-issue: 93575 +.. nonce: Xb2LNB +.. section: Tests + +Fix issue with test_unicode test_raiseMemError. The test case now use +``test.support.calcobjsize`` to calculate size of PyUnicode structs. +:func:`sys.getsizeof` may return different size when string has UTF-8 +memory. + +.. + +.. date: 2022-06-05-10-16-45 +.. gh-issue: 90473 +.. nonce: QMu7A8 +.. section: Tests + +WASI does not have a ``chmod(2)`` syscall. :func:`os.chmod` is now a dummy +function on WASI. Skip all tests that depend on working :func:`os.chmod`. + +.. + +.. date: 2022-06-04-12-05-31 +.. gh-issue: 90473 +.. nonce: RSpjF7 +.. section: Tests + +Skip tests on WASI that require symlinks with absolute paths. + +.. + +.. date: 2022-06-03-16-26-04 +.. gh-issue: 57539 +.. nonce: HxWgYO +.. section: Tests + +Increase calendar test coverage for +:meth:`calendar.LocaleTextCalendar.formatweekday`. + +.. + +.. date: 2022-06-03-14-18-37 +.. gh-issue: 90473 +.. nonce: 7iXVRK +.. section: Tests + +Skip symlink tests on WASI. wasmtime uses ``openat2(2)`` with +``RESOLVE_BENEATH`` flag, which prevents symlinks with absolute paths. + +.. + +.. date: 2022-06-03-12-22-44 +.. gh-issue: 89858 +.. nonce: ftBvjE +.. section: Tests + +Fix ``test_embed`` for out-of-tree builds. Patch by Kumar Aditya. + +.. + +.. date: 2022-05-25-23-07-15 +.. gh-issue: 92886 +.. nonce: Aki63_ +.. section: Tests + +Fixing tests that fail when running with optimizations (``-O``) in +``test_imaplib.py``. + +.. + +.. date: 2022-05-25-23-00-35 +.. gh-issue: 92886 +.. nonce: Y-vrWj +.. section: Tests + +Fixing tests that fail when running with optimizations (``-O``) in +``test_zipimport.py`` + +.. + +.. bpo: 47016 +.. date: 2022-03-14-23-28-17 +.. nonce: K-t2QX +.. section: Tests + +Create a GitHub Actions workflow for verifying bundled pip and setuptools. +Patch by Illia Volochii and Adam Turner. + +.. + +.. date: 2022-06-29-08-58-31 +.. gh-issue: 94404 +.. nonce: 3MadM6 +.. section: Build + +``makesetup`` now works around an issue with sed on macOS and uses correct +CFLAGS for object files that end up in a shared extension. Module CFLAGS are +used before PY_STDMODULE_CFLAGS to avoid clashes with system headers. + +.. + +.. date: 2022-06-08-14-28-03 +.. gh-issue: 93584 +.. nonce: 0xfHOK +.. section: Build + +Address race condition in ``Makefile`` when installing a PGO build. All +``test`` and ``install`` targets now depend on ``all`` target. + +.. + +.. date: 2022-06-04-12-53-53 +.. gh-issue: 93491 +.. nonce: ehM211 +.. section: Build + +``configure`` now detects and reports :pep:`11` support tiers. + +.. + +.. date: 2022-06-15-01-03-52 +.. gh-issue: 93824 +.. nonce: mR4mxu +.. section: Windows + +Drag and drop of files onto Python files in Windows Explorer has been +enabled for Windows ARM64. + +.. + +.. bpo: 42658 +.. date: 2022-03-20-15-47-35 +.. nonce: 16eXtb +.. section: Windows + +Support native Windows case-insensitive path comparisons by using +``LCMapStringEx`` instead of :func:`str.lower` in :func:`ntpath.normcase`. +Add ``LCMapStringEx`` to the :mod:`_winapi` module. + +.. + +.. date: 2022-07-04-01-37-42 +.. gh-issue: 94538 +.. nonce: 1rgy1Y +.. section: Tools/Demos + +Fix Argument Clinic output to custom file destinations. Patch by Erlend E. +Aasland. + +.. + +.. date: 2022-06-29-22-47-11 +.. gh-issue: 94430 +.. nonce: hdov8L +.. section: Tools/Demos + +Allow parameters named ``module`` and ``self`` with custom C names in +Argument Clinic. Patch by Erlend E. Aasland + +.. + +.. date: 2022-06-17-13-41-38 +.. gh-issue: 93937 +.. nonce: uKVTEh +.. section: C API + +The following frame functions and type are now directly available with +``#include <Python.h>``, it's no longer needed to add ``#include +<frameobject.h>``: + +* :c:func:`PyFrame_Check` +* :c:func:`PyFrame_GetBack` +* :c:func:`PyFrame_GetBuiltins` +* :c:func:`PyFrame_GetGenerator` +* :c:func:`PyFrame_GetGlobals` +* :c:func:`PyFrame_GetLasti` +* :c:func:`PyFrame_GetLocals` +* :c:type:`PyFrame_Type` + +Patch by Victor Stinner. + +.. + +.. date: 2022-06-13-21-37-31 +.. gh-issue: 91321 +.. nonce: DgJFvS +.. section: C API + +Fix the compatibility of the Python C API with C++ older than C++11. Patch +by Victor Stinner. + +.. + +.. date: 2022-06-10-23-41-48 +.. gh-issue: 91731 +.. nonce: fhYUQG +.. section: C API + +Avoid defining the ``static_assert`` when compiling with C++ 11, where this +is a keyword and redefining it can lead to undefined behavior. Patch by +Pablo Galindo + +.. + +.. date: 2022-06-04-13-15-41 +.. gh-issue: 93442 +.. nonce: 4M4NDb +.. section: C API + +Add C++ overloads for _Py_CAST_impl() to handle 0/NULL. This will allow C++ +extensions that pass 0 or NULL to macros using _Py_CAST() to continue to +compile. |