Misc/NEWS.d/3.11.0b4.rst

.. 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.

..

.. 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.