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diff --git a/Misc/NEWS.d/3.11.0a2.rst b/Misc/NEWS.d/3.11.0a2.rst new file mode 100644 index 0000000..1f742a2 --- /dev/null +++ b/Misc/NEWS.d/3.11.0a2.rst @@ -0,0 +1,1334 @@ +.. bpo: 45716 +.. date: 2021-11-04-20-19-07 +.. nonce: 5C0pA1 +.. release date: 2021-11-05 +.. section: Core and Builtins + +Improve the :exc:`SyntaxError` message when using ``True``, ``None`` or +``False`` as keywords in a function call. Patch by Pablo Galindo. + +.. + +.. bpo: 45688 +.. date: 2021-11-02-09-27-46 +.. nonce: v5Der1 +.. section: Core and Builtins + +:data:`sys.stdlib_module_names` now contains the macOS-specific module +:mod:`_scproxy`. + +.. + +.. bpo: 45379 +.. date: 2021-10-23-13-49-00 +.. nonce: ZF7G3n +.. section: Core and Builtins + +Clarify :exc:`ImportError` message when we try to explicitly import a frozen +module but frozen modules are disabled. + +.. + +.. bpo: 44525 +.. date: 2021-10-20-11-57-31 +.. nonce: veL4lJ +.. section: Core and Builtins + +Specialize simple calls to Python functions (no starargs, keyowrd dict, or +closure) + +.. + +.. bpo: 45530 +.. date: 2021-10-20-01-28-26 +.. nonce: 5r7n4m +.. section: Core and Builtins + +Cases of sorting using tuples as keys may now be significantly faster in +some cases. Patch by Tim Peters. + +The order of the result may differ from earlier releases if the tuple +elements don't define a total ordering (see +:ref:`expressions-value-comparisons` for information on total ordering). +It's generally true that the result of sorting simply isn't well-defined in +the absence of a total ordering on list elements. + +.. + +.. bpo: 45526 +.. date: 2021-10-19-10-29-47 +.. nonce: WQnvW9 +.. section: Core and Builtins + +In obmalloc, set ADDRESS_BITS to not ignore any bits (ignored 16 before). +That is safer in the case that the kernel gives user-space virtual addresses +that span a range greater than 48 bits. + +.. + +.. bpo: 30570 +.. date: 2021-10-19-01-04-08 +.. nonce: _G30Ms +.. section: Core and Builtins + +Fixed a crash in ``issubclass()`` from infinite recursion when searching +pathological ``__bases__`` tuples. + +.. + +.. bpo: 45521 +.. date: 2021-10-18-22-40-33 +.. nonce: GdMiuW +.. section: Core and Builtins + +Fix a bug in the obmalloc radix tree code. On 64-bit machines, the bug +causes the tree to hold 46-bits of virtual addresses, rather than the +intended 48-bits. + +.. + +.. bpo: 45494 +.. date: 2021-10-16-17-27-48 +.. nonce: vMt1g4 +.. section: Core and Builtins + +Fix parser crash when reporting errors involving invalid continuation +characters. Patch by Pablo Galindo. + +.. + +.. bpo: 45445 +.. date: 2021-10-12-14-41-39 +.. nonce: _F5cMf +.. section: Core and Builtins + +Python now fails to initialize if it finds an invalid :option:`-X` option in +the command line. Patch by Pablo Galindo. + +.. + +.. bpo: 45340 +.. date: 2021-10-08-09-47-38 +.. nonce: ukHgDb +.. section: Core and Builtins + +Object attributes are held in an array instead of a dictionary. An object's +dictionary are created lazily, only when needed. Reduces the memory +consumption of a typical Python object by about 30%. Patch by Mark Shannon. + +.. + +.. bpo: 45408 +.. date: 2021-10-07-21-26-44 +.. nonce: qUqzcd +.. section: Core and Builtins + +Fix a crash in the parser when reporting tokenizer errors that occur at the +same time unclosed parentheses are detected. Patch by Pablo Galindo. + +.. + +.. bpo: 29410 +.. date: 2021-10-07-19-09-12 +.. nonce: bg5SYp +.. section: Core and Builtins + +Add SipHash13 for string hash algorithm and use it by default. + +.. + +.. bpo: 45385 +.. date: 2021-10-06-21-20-11 +.. nonce: CTUT8s +.. section: Core and Builtins + +Fix reference leak from descr_check. Patch by Dong-hee Na. + +.. + +.. bpo: 45367 +.. date: 2021-10-05-03-49-07 +.. nonce: _astoU +.. section: Core and Builtins + +Specialized the ``BINARY_MULTIPLY`` opcode to ``BINARY_MULTIPLY_INT`` and +``BINARY_MULTIPLY_FLOAT`` using the PEP 659 machinery. + +.. + +.. bpo: 21736 +.. date: 2021-10-01-09-21-02 +.. nonce: RI47BU +.. section: Core and Builtins + +Frozen stdlib modules now have ``__file__`` to the .py file they would +otherwise be loaded from, if possible. For packages, ``__path__`` now has +the correct entry instead of being an empty list, which allows unfrozen +submodules to be imported. These are set only if the stdlib directory is +known when the runtime is initialized. Note that the file at ``__file__`` +is not guaranteed to exist. None of this affects non-stdlib frozen modules +nor, for now, frozen modules imported using +``PyImport_ImportFrozenModule()``. Also, at the moment ``co_filename`` is +not updated for the module. + +.. + +.. bpo: 45020 +.. date: 2021-10-01-09-06-54 +.. nonce: Cj5VQN +.. section: Core and Builtins + +For frozen stdlib modules, record the original module name as +``module.__spec__.loader_state.origname``. If the value is different than +``module.__spec__.name`` then the module was defined as an alias in +Tools/scripts/freeze_modules.py. If it is ``None`` then the module comes +from a source file outside the stdlib. + +.. + +.. bpo: 45324 +.. date: 2021-09-29-12-02-39 +.. nonce: BTQElX +.. section: Core and Builtins + +In FrozenImporter.find_spec(), we now preserve the information needed in +exec_module() to load the module. This change mostly impacts internal +details, rather than changing the importer's behavior. + +.. + +.. bpo: 45292 +.. date: 2021-09-26-18-18-50 +.. nonce: aX5HVr +.. section: Core and Builtins + +Implement :pep:`654`. Add :class:`ExceptionGroup` and +:class:`BaseExceptionGroup`. Update traceback display code. + +.. + +.. bpo: 40116 +.. date: 2021-09-23-14-00-05 +.. nonce: KaoeFs +.. section: Core and Builtins + +Change to the implementation of split dictionaries. Classes where the +instances differ either in the exact set of attributes, or in the order in +which those attributes are set, can still share keys. This should have no +observable effect on users of Python or the C-API. Patch by Mark Shannon. + +.. + +.. bpo: 44050 +.. date: 2021-09-08-00-30-09 +.. nonce: mFI15u +.. section: Core and Builtins + +Extensions that indicate they use global state (by setting ``m_size`` to -1) +can again be used in multiple interpreters. This reverts to behavior of +Python 3.8. + +.. + +.. bpo: 44525 +.. date: 2021-06-28-22-23-59 +.. nonce: sSvUKG +.. section: Core and Builtins + +Setup initial specialization infrastructure for the ``CALL_FUNCTION`` +opcode. Implemented initial specializations for C function calls: + +* ``CALL_FUNCTION_BUILTIN_O`` for ``METH_O`` flag. + +* ``CALL_FUNCTION_BUILTIN_FAST`` for ``METH_FASTCALL`` flag without keywords. + +* ``CALL_FUNCTION_LEN`` for ``len(o)``. + +* ``CALL_FUNCTION_ISINSTANCE`` for ``isinstance(o, t)``. + +.. + +.. bpo: 44511 +.. date: 2021-06-26-16-55-08 +.. nonce: k8sMvV +.. section: Core and Builtins + +Improve the generated bytecode for class and mapping patterns. + +.. + +.. bpo: 43706 +.. date: 2021-04-03-02-44-15 +.. nonce: jjsXlT +.. section: Core and Builtins + +Speed up calls to ``enumerate()`` by using the :pep:`590` ``vectorcall`` +calling convention. Patch by Dong-hee Na. + +.. + +.. bpo: 45679 +.. date: 2021-10-30-21-11-37 +.. nonce: Dq8Cpu +.. section: Library + +Fix caching of multi-value :data:`typing.Literal`. ``Literal[True, 2]`` is +no longer equal to ``Literal[1, 2]``. + +.. + +.. bpo: 42064 +.. date: 2021-10-27-13-28-52 +.. nonce: UK4jgV +.. section: Library + +Convert :mod:`sqlite3` to multi-phase initialisation (PEP 489). Patches by +Erlend E. Aasland. + +.. + +.. bpo: 45438 +.. date: 2021-10-27-10-05-39 +.. nonce: Xz5lGU +.. section: Library + +Fix typing.Signature string representation for generic builtin types. + +.. + +.. bpo: 45613 +.. date: 2021-10-26-14-29-54 +.. nonce: 55Ie3c +.. section: Library + +:mod:`sqlite3` now sets :attr:`sqlite3.threadsafety` based on the default +threading mode the underlying SQLite library has been compiled with. Patch +by Erlend E. Aasland. + +.. + +.. bpo: 45574 +.. date: 2021-10-22-23-06-33 +.. nonce: svqA84 +.. section: Library + +Fix warning about ``print_escape`` being unused. + +.. + +.. bpo: 45581 +.. date: 2021-10-22-21-57-02 +.. nonce: rlH6ay +.. section: Library + +:meth:`sqlite3.connect` now correctly raises :exc:`MemoryError` if the +underlying SQLite API signals memory error. Patch by Erlend E. Aasland. + +.. + +.. bpo: 45557 +.. date: 2021-10-21-16-18-51 +.. nonce: 4MQt4r +.. section: Library + +pprint.pprint() now handles underscore_numbers correctly. Previously it was +always setting it to False. + +.. + +.. bpo: 44019 +.. date: 2021-10-21-10-14-22 +.. nonce: Xk4Ncr +.. section: Library + +Add :func:`operator.call` to ``operator.__all__``. Patch by Kreusada. + +.. + +.. bpo: 42174 +.. date: 2021-10-19-01-30-57 +.. nonce: O2w9bi +.. section: Library + +:meth:`shutil.get_terminal_size` now falls back to sane values if the column +or line count are 0. + +.. + +.. bpo: 35673 +.. date: 2021-10-18-18-12-47 +.. nonce: KOkHWe +.. section: Library + +Improve the introspectability of the ``__loader__`` attribute for namespace +packages. :class:`importlib.machinery.NamespaceLoader` is now public, and +implements the :class:`importlib.abc.InspectLoader` interface. +``_NamespaceLoader`` is kept for backward compatibility. + +.. + +.. bpo: 45515 +.. date: 2021-10-18-14-52-48 +.. nonce: aXdvm_ +.. section: Library + +Add references to :mod:`zoneinfo` in the :mod:`datetime` documentation, +mostly replacing outdated references to ``dateutil.tz``. Change by Paul +Ganssle. + +.. + +.. bpo: 45475 +.. date: 2021-10-18-10-46-47 +.. nonce: sb9KDF +.. section: Library + +Reverted optimization of iterating :class:`gzip.GzipFile`, +:class:`bz2.BZ2File`, and :class:`lzma.LZMAFile` (see bpo-43787) because it +caused regression when user iterate them without having reference of them. +Patch by Inada Naoki. + +.. + +.. bpo: 45489 +.. date: 2021-10-16-23-46-39 +.. nonce: QB0rhG +.. section: Library + +Update :class:`~typing.ForwardRef` to support ``|`` operator. Patch by +Dong-hee Na. + +.. + +.. bpo: 42222 +.. date: 2021-10-15-11-30-11 +.. nonce: hdHyac +.. section: Library + +Removed deprecated support for float arguments in *randrange()*. + +.. + +.. bpo: 45428 +.. date: 2021-10-14-18-04-17 +.. nonce: mM2War +.. section: Library + +Fix a regression in py_compile when reading filenames from standard input. + +.. + +.. bpo: 45467 +.. date: 2021-10-14-13-31-19 +.. nonce: Q7Ma6A +.. section: Library + +Fix incremental decoder and stream reader in the "raw-unicode-escape" codec. +Previously they failed if the escape sequence was split. + +.. + +.. bpo: 45461 +.. date: 2021-10-14-00-19-02 +.. nonce: 4LB_tJ +.. section: Library + +Fix incremental decoder and stream reader in the "unicode-escape" codec. +Previously they failed if the escape sequence was split. + +.. + +.. bpo: 45239 +.. date: 2021-10-13-17-52-48 +.. nonce: 7li1_0 +.. section: Library + +Fixed :func:`email.utils.parsedate_tz` crashing with +:exc:`UnboundLocalError` on certain invalid input instead of returning +``None``. Patch by Ben Hoyt. + +.. + +.. bpo: 45417 +.. date: 2021-10-12-20-35-06 +.. nonce: gQM-O7 +.. section: Library + +Fix quadratic behaviour in the enum module: Creation of enum classes with a +lot of entries was quadratic. + +.. + +.. bpo: 45249 +.. date: 2021-10-10-16-14-33 +.. nonce: xqLliz +.. section: Library + +Fix the behaviour of :func:`traceback.print_exc` when displaying the caret +when the ``end_offset`` in the exception is set to 0. Patch by Pablo Galindo + +.. + +.. bpo: 45416 +.. date: 2021-10-10-09-42-34 +.. nonce: n35O0_ +.. section: Library + +Fix use of :class:`asyncio.Condition` with explicit :class:`asyncio.Lock` +objects, which was a regression due to removal of explicit loop arguments. +Patch by Joongi Kim. + +.. + +.. bpo: 20028 +.. date: 2021-10-10-00-25-36 +.. nonce: bPx4Z8 +.. section: Library + +Empty escapechar/quotechar is not allowed when initializing +:class:`csv.Dialect`. Patch by Vajrasky Kok and Dong-hee Na. + +.. + +.. bpo: 44904 +.. date: 2021-10-09-18-42-27 +.. nonce: RlW5h8 +.. section: Library + +Fix bug in the :mod:`doctest` module that caused it to fail if a docstring +included an example with a ``classmethod`` ``property``. Patch by Alex +Waygood. + +.. + +.. bpo: 45406 +.. date: 2021-10-08-19-24-48 +.. nonce: Qh_Mz4 +.. section: Library + +Make :func:`inspect.getmodule` catch ``FileNotFoundError`` raised by +:'func:`inspect.getabsfile`, and return ``None`` to indicate that the module +could not be determined. + +.. + +.. bpo: 45411 +.. date: 2021-10-08-11-29-29 +.. nonce: 4jR--U +.. section: Library + +Add extensions for files containing subtitles - .srt & .vtt - to the +mimetypes.py module. + +.. + +.. bpo: 10716 +.. date: 2021-10-08-04-11-55 +.. nonce: QSRVK2 +.. section: Library + +Migrated pydoc to HTML5 (without changing the look of it). Side effect is to +update xmlrpc's ``ServerHTMLDoc`` which now uses the CSS too. cgitb now +relies less on pydoc (as it can't use the CSS file). + +.. + +.. bpo: 27580 +.. date: 2021-10-07-21-11-48 +.. nonce: tGcBTH +.. section: Library + +Add support of null characters in :mod:`csv`. + +.. + +.. bpo: 45262 +.. date: 2021-10-07-14-04-10 +.. nonce: HqF71Z +.. section: Library + +Prevent use-after-free in asyncio. Make sure the cached running loop holder +gets cleared on dealloc to prevent use-after-free in get_running_loop + +.. + +.. bpo: 45386 +.. date: 2021-10-07-00-05-05 +.. nonce: q9ORpA +.. section: Library + +Make :mod:`xmlrpc.client` more robust to C runtimes where the underlying C +``strftime`` function results in a ``ValueError`` when testing for year +formatting options. + +.. + +.. bpo: 20028 +.. date: 2021-10-03-21-14-37 +.. nonce: zBA4RK +.. section: Library + +Improve error message of :class:`csv.Dialect` when initializing. Patch by +Vajrasky Kok and Dong-hee Na. + +.. + +.. bpo: 45343 +.. date: 2021-10-01-23-07-02 +.. nonce: ixmctD +.. section: Library + +Update bundled pip to 21.2.4 and setuptools to 58.1.0 + +.. + +.. bpo: 45328 +.. date: 2021-09-30-08-22-44 +.. nonce: 8Z-Q0B +.. section: Library + +Fixed :class:`http.client.HTTPConnection` to work properly in OSs that don't +support the ``TCP_NODELAY`` socket option. + +.. + +.. bpo: 45243 +.. date: 2021-09-20-01-25-09 +.. nonce: 0pJf0U +.. section: Library + +Add :meth:`~sqlite3.Connection.setlimit` and +:meth:`~sqlite3.Connection.getlimit` to :class:`sqlite3.Connection` for +setting and getting SQLite limits by connection basis. Patch by Erlend E. +Aasland. + +.. + +.. bpo: 45320 +.. date: 2021-09-15-10-21-10 +.. nonce: 4qaf5x +.. section: Library + +Removed from the :mod:`inspect` module: + +* the ``getargspec`` function, deprecated since Python 3.0; + use :func:`inspect.signature` or :func:`inspect.getfullargspec` instead. + +* the ``formatargspec`` function, deprecated since Python 3.5; + use the :func:`inspect.signature` function and :class:`Signature` object + directly. + +* the undocumented ``Signature.from_callable`` and ``Signature.from_function`` + functions, deprecated since Python 3.5; use the + :meth:`Signature.from_callable() <inspect.Signature.from_callable>` method + instead. + +Patch by Hugo van Kemenade. + +.. + +.. bpo: 45192 +.. date: 2021-09-14-15-52-47 +.. nonce: DjA-BI +.. section: Library + +Fix the ``tempfile._infer_return_type`` function so that the ``dir`` +argument of the :mod:`tempfile` functions accepts an object implementing the +``os.PathLike`` protocol. + +Patch by Kyungmin Lee. + +.. + +.. bpo: 45160 +.. date: 2021-09-11-14-47-05 +.. nonce: VzMXbW +.. section: Library + +When tracing a tkinter variable used by a ttk OptionMenu, callbacks are no +longer made twice. + +.. + +.. bpo: 25625 +.. date: 2021-09-10-12-53-28 +.. nonce: SzcBCw +.. section: Library + +Added non parallel-safe :func:`~contextlib.chdir` context manager to change +the current working directory and then restore it on exit. Simple wrapper +around :func:`~os.chdir`. + +.. + +.. bpo: 24139 +.. date: 2021-08-30-23-10-48 +.. nonce: e38czf +.. section: Library + +Add support for SQLite extended result codes in :exc:`sqlite3.Error`. Patch +by Erlend E. Aasland. + +.. + +.. bpo: 24444 +.. date: 2021-08-30-00-19-23 +.. nonce: Ki4bgz +.. section: Library + +Fixed an error raised in :mod:`argparse` help display when help for an +option is set to 1+ blank spaces or when *choices* arg is an empty +container. + +.. + +.. bpo: 44547 +.. date: 2021-08-20-10-52-40 +.. nonce: eu0iJq +.. section: Library + +Implement ``Fraction.__int__``, so that a :class:`fractions.Fraction` +instance ``f`` passes an ``isinstance(f, typing.SupportsInt)`` check. + +.. + +.. bpo: 40321 +.. date: 2021-07-22-21-25-56 +.. nonce: gBlFmw +.. section: Library + +Adds support for HTTP 308 redirects to :mod:`urllib`. See :rfc:`7538` for +details. Patch by Jochem Schulenklopper. + +.. + +.. bpo: 10572 +.. date: 2021-01-07-01-25-38 +.. nonce: gEEZ9z +.. section: Library + +Move :mod:`sqlite3` tests to ``/Lib/test/test_sqlite3``. Patch by Erlend E. +Aasland. + +.. + +.. bpo: 41374 +.. date: 2020-07-27-19-21-05 +.. nonce: cd-kFL +.. section: Library + +Ensure that ``socket.TCP_*`` constants are exposed on Cygwin 3.1.6 and +greater. + +.. + +.. bpo: 35970 +.. date: 2019-02-11-19-06-10 +.. nonce: ZRvh51 +.. section: Library + +Add help flag to the base64 module's command line interface. Patch +contributed by Robert Kuska. + +.. + +.. bpo: 45726 +.. date: 2021-11-05-12-15-24 +.. nonce: GwRr7e +.. section: Documentation + +Improve documentation for :func:`functools.singledispatch` and +:class:`functools.singledispatchmethod`. + +.. + +.. bpo: 45680 +.. date: 2021-11-03-14-51-03 +.. nonce: 9_NTFU +.. section: Documentation + +Amend the docs on ``GenericAlias`` objects to clarify that non-container +classes can also implement ``__class_getitem__``. Patch contributed by Alex +Waygood. + +.. + +.. bpo: 45618 +.. date: 2021-10-31-20-35-06 +.. nonce: RTcNXF +.. section: Documentation + +Update Sphinx version used to build the documentation to 4.2.0. Patch by +Maciej Olko. + +.. + +.. bpo: 45655 +.. date: 2021-10-28-19-22-55 +.. nonce: aPYGaS +.. section: Documentation + +Add a new "relevant PEPs" section to the top of the documentation for the +``typing`` module. Patch by Alex Waygood. + +.. + +.. bpo: 45604 +.. date: 2021-10-26-10-00-45 +.. nonce: Dm-YhV +.. section: Documentation + +Add ``level`` argument to ``multiprocessing.log_to_stderr`` function docs. + +.. + +.. bpo: 45516 +.. date: 2021-10-22-21-57-42 +.. nonce: 7_RMEX +.. section: Documentation + +Add protocol description to the :class:`importlib.abc.TraversableResources` +documentation. + +.. + +.. bpo: 45464 +.. date: 2021-10-20-16-26-53 +.. nonce: mOISBs +.. section: Documentation + +Mention in the documentation of :ref:`Built-in Exceptions +<bltin-exceptions>` that inheriting from multiple exception types in a +single subclass is not recommended due to possible memory layout +incompatibility. + +.. + +.. bpo: 45449 +.. date: 2021-10-19-01-41-40 +.. nonce: fjHZJc +.. section: Documentation + +Add note about :pep:`585` in :mod:`collections.abc`. + +.. + +.. bpo: 45516 +.. date: 2021-10-18-20-12-18 +.. nonce: EJh4K8 +.. section: Documentation + +Add protocol description to the :class:`importlib.abc.Traversable` +documentation. + +.. + +.. bpo: 20692 +.. date: 2021-10-13-00-42-54 +.. nonce: K5rGtP +.. section: Documentation + +Add Programming FAQ entry explaining that int literal attribute access +requires either a space after or parentheses around the literal. + +.. + +.. bpo: 45678 +.. date: 2021-11-04-20-03-32 +.. nonce: 1xNMjN +.. section: Tests + +Add tests for scenarios in which :class:`functools.singledispatchmethod` is +stacked on top of a method that has already been wrapped by two other +decorators. Patch by Alex Waygood. + +.. + +.. bpo: 45578 +.. date: 2021-10-30-19-00-25 +.. nonce: bvu6X2 +.. section: Tests + +Add tests for :func:`dis.distb` + +.. + +.. bpo: 45678 +.. date: 2021-10-30-13-12-20 +.. nonce: bKrYeS +.. section: Tests + +Add tests to ensure that ``functools.singledispatchmethod`` correctly wraps +the attributes of the target function. + +.. + +.. bpo: 45668 +.. date: 2021-10-29-17-18-56 +.. nonce: MfAw4i +.. section: Tests + +PGO tests now pass when Python is built without test extension modules. + +.. + +.. bpo: 45577 +.. date: 2021-10-22-19-44-13 +.. nonce: dSaNvK +.. section: Tests + +Add subtests for all ``pickle`` protocols in ``test_zoneinfo``. + +.. + +.. bpo: 45566 +.. date: 2021-10-22-12-05-21 +.. nonce: 2gQ3ZB +.. section: Tests + +Fix ``test_frozen_pickle`` in ``test_dataclasses`` to check all ``pickle`` +versions. + +.. + +.. bpo: 43592 +.. date: 2021-10-21-17-22-26 +.. nonce: kHRsra +.. section: Tests + +:mod:`test.libregrtest` now raises the soft resource limit for the maximum +number of file descriptors when the default is too low for our test suite as +was often the case on macOS. + +.. + +.. bpo: 39679 +.. date: 2021-10-18-16-18-41 +.. nonce: F18qcE +.. section: Tests + +Add more test cases for `@functools.singledispatchmethod` when combined with +`@classmethod` or `@staticmethod`. + +.. + +.. bpo: 45410 +.. date: 2021-10-08-14-03-20 +.. nonce: Ex9xe2 +.. section: Tests + +When libregrtest spawns a worker process, stderr is now written into stdout +to keep messages order. Use a single pipe for stdout and stderr, rather than +two pipes. Previously, messages were out of order which made analysis of +buildbot logs harder Patch by Victor Stinner. + +.. + +.. bpo: 45402 +.. date: 2021-10-07-13-43-01 +.. nonce: jlQvep +.. section: Tests + +Fix test_tools.test_sundry() when Python is built out of tree: fix how the +freeze_modules.py tool locates the _freeze_module program. Patch by Victor +Stinner. + +.. + +.. bpo: 45403 +.. date: 2021-10-07-13-27-12 +.. nonce: 7QiDvw +.. section: Tests + +Fix test_sys.test_stdlib_dir() when Python is built outside the source tree: +compare normalized paths. Patch by Victor Stinner. + +.. + +.. bpo: 45400 +.. date: 2021-10-07-13-11-45 +.. nonce: h3iT7V +.. section: Tests + +Fix test_name_error_suggestions_do_not_trigger_for_too_many_locals() of +test_exceptions if a directory name contains "a1" (like "Python-3.11.0a1"): +use a stricter regular expression. Patch by Victor Stinner. + +.. + +.. bpo: 43158 +.. date: 2021-11-01-12-51-46 +.. nonce: fghS6w +.. section: Build + +``setup.py`` now uses values from configure script to build the ``_uuid`` +extension module. Configure now detects util-linux's ``libuuid``, too. + +.. + +.. bpo: 45666 +.. date: 2021-10-29-12-54-53 +.. nonce: w2G63u +.. section: Build + +Fix warning of ``swprintf`` and ``%s`` usage in ``_testembed.c`` + +.. + +.. bpo: 45548 +.. date: 2021-10-28-14-47-22 +.. nonce: mdCBxB +.. section: Build + +``Modules/Setup`` and ``Modules/makesetup`` have been improved. The +``Setup`` file now contains working rules for all extensions. Outdated +comments have been removed. Rules defined by ``makesetup`` track +dependencies correctly. + +.. + +.. bpo: 45548 +.. date: 2021-10-24-21-49-49 +.. nonce: UWx0UC +.. section: Build + +The :mod:`math` and :mod:`cmath` implementation now require a C99 compatible +``libm`` and no longer ship with workarounds for missing acosh, asinh, +atanh, expm1, and log1p functions. + +.. + +.. bpo: 45595 +.. date: 2021-10-24-11-02-43 +.. nonce: WI_5YU +.. section: Build + +``setup.py`` and ``makesetup`` now track build dependencies on all Python +header files and module specific header files. + +.. + +.. bpo: 45571 +.. date: 2021-10-22-15-28-29 +.. nonce: yY8NsJ +.. section: Build + +``Modules/Setup`` now use ``PY_CFLAGS_NODIST`` instead of ``PY_CFLAGS`` to +compile shared modules. + +.. + +.. bpo: 45570 +.. date: 2021-10-22-14-45-40 +.. nonce: 61gM2A +.. section: Build + +:mod:`pyexpat` and :mod:`_elementtree` no longer define obsolete macros +``HAVE_EXPAT_CONFIG_H`` and ``USE_PYEXPAT_CAPI``. ``XML_POOR_ENTROPY`` is +now defined in ``expat_config.h``. + +.. + +.. bpo: 43974 +.. date: 2021-10-22-14-00-44 +.. nonce: HHZtbx +.. section: Build + +``setup.py`` no longer defines ``Py_BUILD_CORE_MODULE``. Instead every +module, that uses the internal API, defines the macro. + +.. + +.. bpo: 45548 +.. date: 2021-10-20-17-02-56 +.. nonce: BoggEf +.. section: Build + +Fill in missing entries in Modules/Setup. + +.. + +.. bpo: 45532 +.. date: 2021-10-20-16-07-39 +.. nonce: kyhvis +.. section: Build + +Update :data:`sys.version` to use ``main`` as fallback information. Patch by +Jeong YunWon. + +.. + +.. bpo: 45536 +.. date: 2021-10-20-12-42-39 +.. nonce: oQNYHB +.. section: Build + +The ``configure`` script now checks whether OpenSSL headers and libraries +provide required APIs. Most common APIs are verified. The check detects +outdated or missing OpenSSL. Failures do not stop configure. + +.. + +.. bpo: 45221 +.. date: 2021-10-18-10-25-56 +.. nonce: rnulhf +.. section: Build + +Fixed regression in handling of ``LDFLAGS`` and ``CPPFLAGS`` options where +:meth:`argparse.parse_known_args` could interpret an option as one of the +built-in command line argument, for example ``-h`` for help. + +.. + +.. bpo: 45440 +.. date: 2021-10-12-02-13-08 +.. nonce: -zYgDb +.. section: Build + +Building Python now requires a C99 ``<math.h>`` header file providing the +following functions: ``copysign()``, ``hypot()``, ``isfinite()``, +``isinf()``, ``isnan()``, ``round()``. Patch by Victor Stinner. + +.. + +.. bpo: 45405 +.. date: 2021-10-11-16-27-38 +.. nonce: iSfdW5 +.. section: Build + +Prevent ``internal configure error`` when running ``configure`` with recent +versions of non-Apple clang. Patch by David Bohman. + +.. + +.. bpo: 45433 +.. date: 2021-10-11-16-08-37 +.. nonce: pVDkMV +.. section: Build + +Avoid linking libpython with libcrypt. + +.. + +.. bpo: 43652 +.. date: 2021-11-04-00-41-50 +.. nonce: RnqV7I +.. section: Windows + +Update Tcl/Tk to 8.6.11, actually this time. The previous update incorrectly +included 8.6.10. + +.. + +.. bpo: 45337 +.. date: 2021-09-30-23-17-27 +.. nonce: qg7U_h +.. section: Windows + +venv now warns when the created environment may need to be accessed at a +different path, due to redirections, links or junctions. It also now +correctly installs or upgrades components when the alternate path is +required. + +.. + +.. bpo: 43851 +.. date: 2021-04-15-01-23-10 +.. nonce: qgU0gy +.. section: Windows + +Build SQLite ``SQLITE_OMIT_AUTOINIT`` on Windows. Patch by Erlend E. +Aasland. + +.. + +.. bpo: 44828 +.. date: 2021-10-25-02-02-21 +.. nonce: XBdXlJ +.. section: macOS + +Avoid tkinter file dialog failure on macOS 12 Monterey when using the Tk +8.6.11 provided by python.org macOS installers. Patch by Marc Culler of the +Tk project. + +.. + +.. bpo: 45495 +.. date: 2021-10-16-17-20-32 +.. nonce: ST8RFt +.. section: IDLE + +Add context keywords 'case' and 'match' to completions list. + +.. + +.. bpo: 29103 +.. date: 2021-10-20-18-41-17 +.. nonce: CMRLyq +.. section: C API + +:c:func:`PyType_FromSpec* <PyType_FromModuleAndSpec>` now copies the class +name from the spec to a buffer owned by the class, so the original can be +safely deallocated. Patch by Petr Viktorin. + +.. + +.. bpo: 45522 +.. date: 2021-10-19-13-07-46 +.. nonce: kGAwmZ +.. section: C API + +The internal freelists for frame, float, list, dict, async generators, and +context objects can now be disabled. + +.. + +.. bpo: 35134 +.. date: 2021-10-19-00-20-40 +.. nonce: Z0Zk_m +.. section: C API + +Exclude :c:func:`PyWeakref_GET_OBJECT` from the limited C API. It never +worked since the :c:type:`PyWeakReference` structure is opaque in the +limited C API. + +.. + +.. bpo: 35081 +.. date: 2021-10-15-09-29-59 +.. nonce: 2teFD3 +.. section: C API + +Move the ``interpreteridobject.h`` header file from ``Include/`` to +``Include/internal/``. It only provides private functions. Patch by Victor +Stinner. + +.. + +.. bpo: 35134 +.. date: 2021-10-15-00-11-51 +.. nonce: eX4zqy +.. section: C API + +The non-limited API files ``cellobject.h``, ``classobject.h``, +``context.h``, ``funcobject.h``, ``genobject.h`` and ``longintrepr.h`` have +been moved to the ``Include/cpython`` directory. Moreover, the ``eval.h`` +header file was removed. These files must not be included directly, as they +are already included in ``Python.h``: :ref:`Include Files <api-includes>`. +If they have been included directly, consider including ``Python.h`` +instead. Patch by Victor Stinner. + +.. + +.. bpo: 45474 +.. date: 2021-10-14-22-16-56 +.. nonce: 1OkJQh +.. section: C API + +The following items are no longer available when ``Py_LIMITED_API`` is +defined: + +* :c:func:`PyMarshal_WriteLongToFile` +* :c:func:`PyMarshal_WriteObjectToFile` +* :c:func:`PyMarshal_ReadObjectFromString` +* :c:func:`PyMarshal_WriteObjectToString` +* the ``Py_MARSHAL_VERSION`` macro + +These are not part of the :ref:`limited API <stable-abi-list>`. + +Patch by Victor Stinner. + +.. + +.. bpo: 45434 +.. date: 2021-10-13-14-42-46 +.. nonce: INNEEt +.. section: C API + +Remove the ``pystrhex.h`` header file. It only contains private functions. C +extensions should only include the main ``<Python.h>`` header file. Patch by +Victor Stinner. + +.. + +.. bpo: 45440 +.. date: 2021-10-12-02-13-41 +.. nonce: Gf94rE +.. section: C API + +Remove the ``Py_FORCE_DOUBLE()`` macro. It was used by the +``Py_IS_INFINITY()`` macro. Patch by Victor Stinner. + +.. + +.. bpo: 45434 +.. date: 2021-10-11-23-03-49 +.. nonce: tsS8I_ +.. section: C API + +``<Python.h>`` no longer includes the header files ``<stdlib.h>``, +``<stdio.h>``, ``<errno.h>`` and ``<string.h>`` when the ``Py_LIMITED_API`` +macro is set to ``0x030b0000`` (Python 3.11) or higher. C extensions should +explicitly include the header files after ``#include <Python.h>``. Patch by +Victor Stinner. + +.. + +.. bpo: 41123 +.. date: 2021-10-11-22-58-33 +.. nonce: myrlIp +.. section: C API + +Remove ``Py_UNICODE_COPY()`` and ``Py_UNICODE_FILL()`` macros, deprecated +since Python 3.3. Use ``PyUnicode_CopyCharacters()`` or ``memcpy()`` +(``wchar_t*`` string), and ``PyUnicode_Fill()`` functions instead. Patch by +Victor Stinner. + +.. + +.. bpo: 45412 +.. date: 2021-10-08-15-54-07 +.. nonce: KHyJCT +.. section: C API + +Remove the following math macros using the ``errno`` variable: + +* ``Py_ADJUST_ERANGE1()`` +* ``Py_ADJUST_ERANGE2()`` +* ``Py_OVERFLOWED()`` +* ``Py_SET_ERANGE_IF_OVERFLOW()`` +* ``Py_SET_ERRNO_ON_MATH_ERROR()`` + +Patch by Victor Stinner. + +.. + +.. bpo: 45395 +.. date: 2021-10-06-15-54-40 +.. nonce: yVhdAl +.. section: C API + +Custom frozen modules (the array set to ``PyImport_FrozenModules``) are now +treated as additions, rather than replacing all the default frozen modules. +Frozen stdlib modules can still be disabled by setting the "code" field of +the custom array entry to NULL. + +.. + +.. bpo: 43760 +.. date: 2021-09-24-11-12-21 +.. nonce: Bfxd1- +.. section: C API + +Add new :c:func:`PyThreadState_EnterTracing`, and +:c:func:`PyThreadState_LeaveTracing` functions to the limited C API to +suspend and resume tracing and profiling. Patch by Victor Stinner. + +.. + +.. bpo: 44220 +.. date: 2021-05-24-22-12-40 +.. nonce: H9CUGl +.. section: C API + +:c:var:`PyStructSequence_UnnamedField` is added to the Stable ABI. |