.. date: 2022-12-05-01-39-10 .. gh-issue: 100001 .. nonce: uD05Fc .. release date: 2022-12-06 .. section: Security ``python -m http.server`` no longer allows terminal control characters sent within a garbage request to be printed to the stderr server log. This is done by changing the :mod:`http.server` :class:`BaseHTTPRequestHandler` ``.log_message`` method to replace control characters with a ``\xHH`` hex escape before printing. .. .. date: 2022-11-11-12-50-28 .. gh-issue: 87604 .. nonce: OtwH5L .. section: Security Avoid publishing list of active per-interpreter audit hooks via the :mod:`gc` module .. .. date: 2022-11-04-09-29-36 .. gh-issue: 98433 .. nonce: l76c5G .. section: Security The IDNA codec decoder used on DNS hostnames by :mod:`socket` or :mod:`asyncio` related name resolution functions no longer involves a quadratic algorithm. This prevents a potential CPU denial of service if an out-of-spec excessive length hostname involving bidirectional characters were decoded. Some protocols such as :mod:`urllib` http ``3xx`` redirects potentially allow for an attacker to supply such a name. .. .. date: 2022-10-26-21-04-23 .. gh-issue: 98739 .. nonce: keBWcY .. section: Security Update bundled libexpat to 2.5.0 .. .. date: 2022-09-28-12-10-57 .. gh-issue: 97612 .. nonce: y6NvOQ .. section: Security Fix a shell code injection vulnerability in the ``get-remote-certificate.py`` example script. The script no longer uses a shell to run ``openssl`` commands. Issue reported and initial fix by Caleb Shortt. Patch by Victor Stinner. .. .. date: 2022-11-30-15-29-08 .. gh-issue: 99886 .. nonce: feJkSv .. section: Core and Builtins Fix a crash when an object which does not have a dictionary frees its instance values. .. .. date: 2022-11-30-11-09-40 .. gh-issue: 99891 .. nonce: 9VomwB .. section: Core and Builtins Fix a bug in the tokenizer that could cause infinite recursion when showing syntax warnings that happen in the first line of the source. Patch by Pablo Galindo .. .. date: 2022-11-26-05-34-00 .. gh-issue: 99729 .. nonce: A3ovwQ .. section: Core and Builtins Fix an issue that could cause frames to be visible to Python code as they are being torn down, possibly leading to memory corruption or hard crashes of the interpreter. .. .. date: 2022-11-21-11-27-14 .. gh-issue: 99578 .. nonce: DcKoBJ .. section: Core and Builtins Fix a reference bug in :func:`_imp.create_builtin()` after the creation of the first sub-interpreter for modules ``builtins`` and ``sys``. Patch by Victor Stinner. .. .. date: 2022-11-19-22-27-52 .. gh-issue: 99581 .. nonce: yKYPbf .. section: Core and Builtins Fixed a bug that was causing a buffer overflow if the tokenizer copies a line missing the newline caracter from a file that is as long as the available tokenizer buffer. Patch by Pablo galindo .. .. date: 2022-11-18-11-24-25 .. gh-issue: 99553 .. nonce: F64h-n .. section: Core and Builtins Fix bug where an :exc:`ExceptionGroup` subclass can wrap a :exc:`BaseException`. .. .. date: 2022-11-12-01-39-57 .. gh-issue: 99370 .. nonce: _cu32j .. section: Core and Builtins Fix zip path for venv created from a non-installed python on POSIX platforms. .. .. date: 2022-11-10-02-11-23 .. gh-issue: 99298 .. nonce: NeArAJ .. section: Core and Builtins Fix an issue that could potentially cause incorrect error handling for some bytecode instructions. .. .. date: 2022-11-08-16-35-25 .. gh-issue: 99205 .. nonce: 2YOoFT .. section: Core and Builtins Fix an issue that prevented :c:type:`PyThreadState` and :c:type:`PyInterpreterState` memory from being freed properly. .. .. date: 2022-11-07-10-29-41 .. gh-issue: 99181 .. nonce: bfG4bI .. section: Core and Builtins Fix failure in :keyword:`except* ` with unhashable exceptions. .. .. date: 2022-11-07-08-17-12 .. gh-issue: 99204 .. nonce: Mf4hMD .. section: Core and Builtins Fix calculation of :data:`sys._base_executable` when inside a POSIX virtual environment using copies of the python binary when the base installation does not provide the executable name used by the venv. Calculation will fall back to alternative names ("python", "python."). .. .. date: 2022-11-06-22-59-02 .. gh-issue: 96055 .. nonce: TmQuJn .. section: Core and Builtins Update :mod:`faulthandler` to emit an error message with the proper unexpected signal number. Patch by Dong-hee Na. .. .. date: 2022-11-06-13-25-01 .. gh-issue: 99153 .. nonce: uE3CVL .. section: Core and Builtins Fix location of :exc:`SyntaxError` for a :keyword:`try` block with both :keyword:`except` and :keyword:`except* `. .. .. date: 2022-11-06-00-17-58 .. gh-issue: 99103 .. nonce: bFA9BX .. section: Core and Builtins Fix the error reporting positions of specialized traceback anchors when the source line contains Unicode characters. .. .. date: 2022-10-31-21-01-35 .. gh-issue: 98852 .. nonce: MYaRN6 .. section: Core and Builtins Fix subscription of type aliases containing bare generic types or types like :class:`~typing.TypeVar`: for example ``tuple[A, T][int]`` and ``tuple[TypeVar, T][int]``, where ``A`` is a generic type, and ``T`` is a type variable. .. .. date: 2022-10-31-18-03-10 .. gh-issue: 98925 .. nonce: zpdjVd .. section: Core and Builtins Lower the recursion depth for marshal on WASI to support wasmtime 2.0/main. .. .. date: 2022-10-28-14-52-55 .. gh-issue: 98783 .. nonce: iG0kMs .. section: Core and Builtins Fix multiple crashes in debug mode when ``str`` subclasses are used instead of ``str`` itself. .. .. date: 2022-10-21-11-28-53 .. gh-issue: 99257 .. nonce: nmcuf- .. section: Core and Builtins Fix an issue where member descriptors (such as those for :attr:`~object.__slots__`) could behave incorrectly or crash instead of raising a :exc:`TypeError` when accessed via an instance of an invalid type. .. .. date: 2022-10-19-23-48-46 .. gh-issue: 98374 .. nonce: eOBh8M .. section: Core and Builtins Suppress ImportError for invalid query for help() command. Patch by Dong-hee Na. .. .. date: 2022-10-19-01-01-08 .. gh-issue: 98415 .. nonce: ZS2eWh .. section: Core and Builtins Fix detection of MAC addresses for :mod:`uuid` on certain OSs. Patch by Chaim Sanders .. .. date: 2022-10-15-23-15-14 .. gh-issue: 92119 .. nonce: PMSwwG .. section: Core and Builtins Print exception class name instead of its string representation when raising errors from :mod:`ctypes` calls. .. .. date: 2022-10-06-15-45-57 .. gh-issue: 96078 .. nonce: fS-6mU .. section: Core and Builtins :func:`os.sched_yield` now release the GIL while calling sched_yield(2). Patch by Dong-hee Na. .. .. date: 2022-10-06-05-41-01 .. gh-issue: 93354 .. nonce: 6BpHl2 .. section: Core and Builtins Fix an issue that could delay the specialization of :opcode:`PRECALL` instructions. .. .. date: 2022-10-05-17-02-22 .. gh-issue: 97943 .. nonce: LYAWlE .. section: Core and Builtins Bugfix: :func:`PyFunction_GetAnnotations` should return a borrowed reference. It was returning a new reference. .. .. date: 2022-10-04-02-00-10 .. gh-issue: 97779 .. nonce: f3N1hI .. section: Core and Builtins Ensure that all Python frame objects are backed by "complete" frames. .. .. date: 2022-10-01-08-55-09 .. gh-issue: 97591 .. nonce: pw6kkH .. section: Core and Builtins Fixed a missing incref/decref pair in ``Exception.__setstate__()``. Patch by Ofey Chan. .. .. date: 2022-09-29-15-19-29 .. gh-issue: 94526 .. nonce: wq5m6T .. section: Core and Builtins Fix the Python path configuration used to initialized :data:`sys.path` at Python startup. Paths are no longer encoded to UTF-8/strict to avoid encoding errors if it contains surrogate characters (bytes paths are decoded with the surrogateescape error handler). Patch by Victor Stinner. .. .. date: 2022-09-20-11-06-45 .. gh-issue: 95921 .. nonce: dkcRQn .. section: Core and Builtins Fix overly-broad source position information for chained comparisons used as branching conditions. .. .. date: 2022-09-16-16-54-35 .. gh-issue: 96387 .. nonce: GRzewg .. section: Core and Builtins At Python exit, sometimes a thread holding the GIL can wait forever for a thread (usually a daemon thread) which requested to drop the GIL, whereas the thread already exited. To fix the race condition, the thread which requested the GIL drop now resets its request before exiting. Issue discovered and analyzed by Mingliang ZHAO. Patch by Victor Stinner. .. .. date: 2022-09-16-12-36-13 .. gh-issue: 96864 .. nonce: PLU3i8 .. section: Core and Builtins Fix a possible assertion failure, fatal error, or :exc:`SystemError` if a line tracing event raises an exception while opcode tracing is enabled. .. .. date: 2022-09-13-12-06-46 .. gh-issue: 96678 .. nonce: NqGFyb .. section: Core and Builtins Fix undefined behaviour in C code of null pointer arithmetic. .. .. date: 2022-09-12-16-58-22 .. gh-issue: 96754 .. nonce: 0GRme5 .. section: Core and Builtins Make sure that all frame objects created are created from valid interpreter frames. Prevents the possibility of invalid frames in backtraces and signal handlers. .. .. date: 2022-08-29-13-06-58 .. gh-issue: 95196 .. nonce: eGRR4b .. section: Core and Builtins Disable incorrect pickling of the C implemented classmethod descriptors. .. .. date: 2022-08-15-21-08-11 .. gh-issue: 96005 .. nonce: 6eoc8k .. section: Core and Builtins On WASI :data:`~errno.ENOTCAPABLE` is now mapped to :exc:`PermissionError`. The :mod:`errno` modules exposes the new error number. ``getpath.py`` now ignores :exc:`PermissionError` when it cannot open landmark files ``pybuilddir.txt`` and ``pyenv.cfg``. .. .. date: 2022-06-10-16-37-44 .. gh-issue: 93696 .. nonce: 65BI2R .. section: Core and Builtins Allow :mod:`pdb` to locate source for frozen modules in the standard library. .. .. bpo: 31718 .. date: 2020-02-23-23-48-15 .. nonce: sXko5e .. section: Core and Builtins Raise :exc:`ValueError` instead of :exc:`SystemError` when methods of uninitialized :class:`io.IncrementalNewlineDecoder` objects are called. Patch by Oren Milman. .. .. bpo: 38031 .. date: 2019-09-04-19-09-49 .. nonce: Yq4L72 .. section: Core and Builtins Fix a possible assertion failure in :class:`io.FileIO` when the opener returns an invalid file descriptor. .. .. date: 2022-12-05-13-40-15 .. gh-issue: 100001 .. nonce: 78ReYp .. section: Library Also \ escape \s in the http.server BaseHTTPRequestHandler.log_message so that it is technically possible to parse the line and reconstruct what the original data was. Without this a \xHH is ambiguious as to if it is a hex replacement we put in or the characters r"\x" came through in the original request line. .. .. date: 2022-12-02-13-05-00 .. gh-issue: 93453 .. nonce: EFj1NN .. section: Library :func:`asyncio.get_event_loop` now only emits a deprecation warning when a new event loop was created implicitly. It no longer emits a deprecation warning if the current event loop was set. .. .. date: 2022-11-21-17-56-18 .. gh-issue: 51524 .. nonce: nTykx8 .. section: Library Fix bug when calling trace.CoverageResults with valid infile. .. .. date: 2022-11-21-13-49-03 .. gh-issue: 99645 .. nonce: 9w1QKq .. section: Library Fix a bug in handling class cleanups in :class:`unittest.TestCase`. Now ``addClassCleanup()`` uses separate lists for different ``TestCase`` subclasses, and ``doClassCleanups()`` only cleans up the particular class. .. .. date: 2022-11-15-10-55-24 .. gh-issue: 97001 .. nonce: KeQuVF .. section: Library Release the GIL when calling termios APIs to avoid blocking threads. .. .. date: 2022-11-13-02-06-56 .. gh-issue: 99341 .. nonce: 8-OlwB .. section: Library Fix :func:`ast.increment_lineno` to also cover :class:`ast.TypeIgnore` when changing line numbers. .. .. date: 2022-11-12-15-45-51 .. gh-issue: 99418 .. nonce: FxfAXS .. section: Library Fix bug in :func:`urllib.parse.urlparse` that causes URL schemes that begin with a digit, a plus sign, or a minus sign to be parsed incorrectly. .. .. date: 2022-11-12-12-15-30 .. gh-issue: 99382 .. nonce: dKg_rW .. section: Library Check the number of arguments in substitution in user generics containing a :class:`~typing.TypeVarTuple` and one or more :class:`~typing.TypeVar`. .. .. date: 2022-11-12-12-10-23 .. gh-issue: 99379 .. nonce: bcGhxF .. section: Library Fix substitution of :class:`~typing.ParamSpec` followed by :class:`~typing.TypeVarTuple` in generic aliases. .. .. date: 2022-11-12-12-08-34 .. gh-issue: 99344 .. nonce: 7M_u8G .. section: Library Fix substitution of :class:`~typing.TypeVarTuple` and :class:`~typing.ParamSpec` together in user generics. .. .. date: 2022-11-09-20-48-42 .. gh-issue: 74044 .. nonce: zBj26K .. section: Library Fixed bug where :func:`inspect.signature` reported incorrect arguments for decorated methods. .. .. date: 2022-11-09-12-16-35 .. gh-issue: 99275 .. nonce: klOqoL .. section: Library Fix ``SystemError`` in :mod:`ctypes` when exception was not set during ``__initsubclass__``. .. .. date: 2022-11-09-08-40-52 .. gh-issue: 99277 .. nonce: J1P44O .. section: Library Remove older version of ``_SSLProtocolTransport.get_write_buffer_limits`` in :mod:`!asyncio.sslproto` .. .. date: 2022-11-08-11-15-37 .. gh-issue: 99248 .. nonce: 1vt8xI .. section: Library fix negative numbers failing in verify() .. .. date: 2022-11-06-12-44-51 .. gh-issue: 99155 .. nonce: vLZOzi .. section: Library Fix :class:`statistics.NormalDist` pickle with ``0`` and ``1`` protocols. .. .. date: 2022-11-05-23-16-15 .. gh-issue: 93464 .. nonce: ucd4vP .. section: Library ``enum.auto()`` is now correctly activated when combined with other assignment values. E.g. ``ONE = auto(), 'some text'`` will now evaluate as ``(1, 'some text')``. .. .. date: 2022-11-05-17-16-40 .. gh-issue: 99134 .. nonce: Msgspf .. section: Library Update the bundled copy of pip to version 22.3.1. .. .. date: 2022-11-02-05-54-02 .. gh-issue: 83004 .. nonce: 0v8iyw .. section: Library Clean up refleak on failed module initialisation in :mod:`_zoneinfo` .. .. date: 2022-11-02-05-53-25 .. gh-issue: 83004 .. nonce: qc_KHr .. section: Library Clean up refleaks on failed module initialisation in in :mod:`_pickle` .. .. date: 2022-11-02-05-52-36 .. gh-issue: 83004 .. nonce: LBl79O .. section: Library Clean up refleak on failed module initialisation in :mod:`_io`. .. .. date: 2022-10-31-12-34-03 .. gh-issue: 98897 .. nonce: rgNn4x .. section: Library Fix memory leak in :func:`math.dist` when both points don't have the same dimension. Patch by Kumar Aditya. .. .. date: 2022-10-30-12-22-24 .. gh-issue: 98706 .. nonce: v1Kuy5 .. section: Library [3.11] Applied changes from importlib_metadata `4.11.4 through 4.13 `_, including compatibility and robustness fixes for ``Distribution`` objects without ``_normalized_name``, disallowing invalid inputs to ``Distribution.from_name``, and refined behaviors in ``PathDistribution._name_from_stem`` and ``PathDistribution._normalized_name``. .. .. date: 2022-10-29-03-40-18 .. gh-issue: 98793 .. nonce: WSPB4A .. section: Library Fix argument typechecks in :func:`!_overlapped.WSAConnect` and :func:`!_overlapped.Overlapped.WSASendTo` functions. .. .. date: 2022-10-28-23-44-17 .. gh-issue: 98744 .. nonce: sGHDWm .. section: Library Prevent crashing in :mod:`traceback` when retrieving the byte-offset for some source files that contain certain unicode characters. .. .. date: 2022-10-27-12-56-38 .. gh-issue: 98740 .. nonce: ZoqqGM .. section: Library Fix internal error in the :mod:`re` module which in very rare circumstances prevented compilation of a regular expression containing a :ref:`conditional expression ` without the "else" branch. .. .. date: 2022-10-26-07-51-55 .. gh-issue: 98703 .. nonce: 0hW773 .. section: Library Fix :meth:`asyncio.StreamWriter.drain` to call ``protocol.connection_lost`` callback only once on Windows. .. .. date: 2022-10-25-20-17-34 .. gh-issue: 98624 .. nonce: YQUPFy .. section: Library Add a mutex to unittest.mock.NonCallableMock to protect concurrent access to mock attributes. .. .. date: 2022-10-23-18-30-39 .. gh-issue: 89237 .. nonce: kBui30 .. section: Library Fix hang on Windows in ``subprocess.wait_closed()`` in :mod:`asyncio` with :class:`~asyncio.ProactorEventLoop`. Patch by Kumar Aditya. .. .. date: 2022-10-19-18-31-53 .. gh-issue: 98458 .. nonce: vwyq7O .. section: Library Fix infinite loop in unittest when a self-referencing chained exception is raised .. .. date: 2022-10-19-09-29-12 .. gh-issue: 97928 .. nonce: xj3im7 .. section: Library :meth:`tkinter.Text.count` raises now an exception for options starting with "-" instead of silently ignoring them. .. .. date: 2022-10-16-18-52-00 .. gh-issue: 97966 .. nonce: humlhz .. section: Library On ``uname_result``, restored expectation that ``_fields`` and ``_asdict`` would include all six properties including ``processor``. .. .. date: 2022-10-16-06-18-59 .. gh-issue: 98307 .. nonce: b2_CDu .. section: Library A :meth:`~logging.handlers.SysLogHandler.createSocket` method was added to :class:`~logging.handlers.SysLogHandler`. .. .. date: 2022-10-14-19-57-37 .. gh-issue: 96035 .. nonce: 0xcX-p .. section: Library Fix bug in :func:`urllib.parse.urlparse` that causes certain port numbers containing whitespace, underscores, plus and minus signs, or non-ASCII digits to be incorrectly accepted. .. .. date: 2022-10-14-11-46-31 .. gh-issue: 98251 .. nonce: Uxc9al .. section: Library Allow :mod:`venv` to pass along :envvar:`PYTHON*` variables to ``ensurepip`` and ``pip`` when they do not impact path resolution .. .. date: 2022-10-12-10-00-40 .. gh-issue: 98178 .. nonce: hspH51 .. section: Library On macOS, fix a crash in :func:`syslog.syslog` in multi-threaded applications. On macOS, the libc ``syslog()`` function is not thread-safe, so :func:`syslog.syslog` no longer releases the GIL to call it. Patch by Victor Stinner. .. .. date: 2022-10-10-07-07-31 .. gh-issue: 96151 .. nonce: K9fwoq .. section: Library Allow ``BUILTINS`` to be a valid field name for frozen dataclasses. .. .. date: 2022-10-09-12-12-38 .. gh-issue: 87730 .. nonce: ClgP3f .. section: Library Wrap network errors consistently in urllib FTP support, so the test suite doesn't fail when a network is available but the public internet is not reachable. .. .. date: 2022-10-08-19-39-27 .. gh-issue: 98086 .. nonce: y---WC .. section: Library Make sure ``patch.dict()`` can be applied on async functions. .. .. date: 2022-10-06-23-42-00 .. gh-issue: 90985 .. nonce: s280JY .. section: Library Earlier in 3.11 we deprecated ``asyncio.Task.cancel("message")``. We realized we were too harsh, and have undeprecated it. .. .. date: 2022-10-04-21-21-41 .. gh-issue: 97837 .. nonce: 19q-eg .. section: Library Change deprecate warning message in :mod:`unittest` from ``It is deprecated to return a value!=None`` to ``It is deprecated to return a value that is not None from a test case`` .. .. date: 2022-10-04-07-55-19 .. gh-issue: 97825 .. nonce: mNdv1l .. section: Library Fixes :exc:`AttributeError` when :meth:`subprocess.check_output` is used with argument ``input=None`` and either of the arguments *encoding* or *errors* are used. .. .. date: 2022-10-02-12-38-22 .. gh-issue: 82836 .. nonce: OvYLmC .. section: Library Fix :attr:`~ipaddress.IPv4Address.is_private` properties in the :mod:`ipaddress` module. Previously non-private networks (0.0.0.0/0) would return True from this method; now they correctly return False. .. .. date: 2022-09-30-15-56-20 .. gh-issue: 96827 .. nonce: lzy1iw .. section: Library Avoid spurious tracebacks from :mod:`asyncio` when default executor cleanup is delayed until after the event loop is closed (e.g. as the result of a keyboard interrupt). .. .. date: 2022-09-29-23-22-24 .. gh-issue: 97592 .. nonce: tpJg_J .. section: Library Avoid a crash in the C version of :meth:`asyncio.Future.remove_done_callback` when an evil argument is passed. .. .. date: 2022-09-29-08-15-55 .. gh-issue: 97639 .. nonce: JSjWYW .. section: Library Remove ``tokenize.NL`` check from :mod:`tabnanny`. .. .. date: 2022-09-25-20-42-33 .. gh-issue: 73588 .. nonce: uVtjEA .. section: Library Fix generation of the default name of :class:`tkinter.Checkbutton`. Previously, checkbuttons in different parent widgets could have the same short name and share the same state if arguments "name" and "variable" are not specified. Now they are globally unique. .. .. date: 2022-09-22-14-35-02 .. gh-issue: 97005 .. nonce: yf21Q7 .. section: Library Update bundled libexpat to 2.4.9 .. .. date: 2022-09-22-11-50-29 .. gh-issue: 85760 .. nonce: DETTPd .. section: Library Fix race condition in :mod:`asyncio` where :meth:`~asyncio.SubprocessProtocol.process_exited` called before the :meth:`~asyncio.SubprocessProtocol.pipe_data_received` leading to inconsistent output. Patch by Kumar Aditya. .. .. date: 2022-09-17-13-15-10 .. gh-issue: 96819 .. nonce: 6RfqM7 .. section: Library Fixed check in :mod:`multiprocessing.resource_tracker` that guarantees that the length of a write to a pipe is not greater than ``PIPE_BUF``. .. .. date: 2022-09-15-00-37-33 .. gh-issue: 96741 .. nonce: 4b6czN .. section: Library Corrected type annotation for dataclass attribute ``pstats.FunctionProfile.ncalls`` to be ``str``. .. .. date: 2022-08-30-11-46-36 .. gh-issue: 95987 .. nonce: CV7_u4 .. section: Library Fix ``repr`` of ``Any`` subclasses. .. .. date: 2022-08-29-16-54-36 .. gh-issue: 96388 .. nonce: dCpJcu .. section: Library Work around missing socket functions in :class:`~socket.socket`'s ``__repr__``. .. .. date: 2022-08-29-12-35-28 .. gh-issue: 96073 .. nonce: WaGstf .. section: Library In :mod:`inspect`, fix overeager replacement of "``typing.``" in formatting annotations. .. .. date: 2022-08-23-03-13-18 .. gh-issue: 96192 .. nonce: TJywOF .. section: Library Fix handling of ``bytes`` :term:`path-like objects ` in :func:`os.ismount()`. .. .. date: 2022-08-20-10-31-01 .. gh-issue: 96052 .. nonce: a6FhaD .. section: Library Fix handling compiler warnings (SyntaxWarning and DeprecationWarning) in :func:`codeop.compile_command` when checking for incomplete input. Previously it emitted warnings and raised a SyntaxError. Now it always returns ``None`` for incomplete input without emitting any warnings. .. .. date: 2022-08-06-12-18-07 .. gh-issue: 88863 .. nonce: NnqsuJ .. section: Library To avoid apparent memory leaks when :func:`asyncio.open_connection` raises, break reference cycles generated by local exception and future instances (which has exception instance as its member var). Patch by Dong Uk, Kang. .. .. date: 2022-07-22-09-09-08 .. gh-issue: 91212 .. nonce: 53O8Ab .. section: Library Fixed flickering of the turtle window when the tracer is turned off. Patch by Shin-myoung-serp. .. .. date: 2022-07-08-08-39-35 .. gh-issue: 88050 .. nonce: 0aOC_m .. section: Library Fix :mod:`asyncio` subprocess transport to kill process cleanly when process is blocked and avoid ``RuntimeError`` when loop is closed. Patch by Kumar Aditya. .. .. date: 2022-06-17-12-02-30 .. gh-issue: 93858 .. nonce: R49ARc .. section: Library Prevent error when activating venv in nested fish instances. .. .. date: 2022-04-23-03-46-37 .. gh-issue: 91078 .. nonce: 87-hkp .. section: Library :meth:`TarFile.next` now returns ``None`` when called on an empty tarfile. .. .. bpo: 47220 .. date: 2022-04-04-22-54-11 .. nonce: L9jYu4 .. section: Library Document the optional *callback* parameter of :class:`WeakMethod`. Patch by Géry Ogam. .. .. bpo: 46364 .. date: 2022-01-14-10-49-20 .. nonce: SzhlU9 .. section: Library Restrict use of sockets instead of pipes for stdin of subprocesses created by :mod:`asyncio` to AIX platform only. .. .. bpo: 38523 .. date: 2020-10-23-22-20-52 .. nonce: CrkxLh .. section: Library :func:`shutil.copytree` now applies the *ignore_dangling_symlinks* argument recursively. .. .. bpo: 36267 .. date: 2019-09-03-15-45-19 .. nonce: z42Ex7 .. section: Library Fix IndexError in :class:`argparse.ArgumentParser` when a ``store_true`` action is given an explicit argument. .. .. date: 2022-11-16-12-52-23 .. gh-issue: 92892 .. nonce: TS-P0j .. section: Documentation Document that calling variadic functions with ctypes requires special care on macOS/arm64 (and possibly other platforms). .. .. date: 2022-10-16-17-34-45 .. gh-issue: 85525 .. nonce: DvkD0v .. section: Documentation Remove extra row .. .. date: 2022-08-12-01-12-52 .. gh-issue: 95588 .. nonce: PA0FI7 .. section: Documentation Clarified the conflicting advice given in the :mod:`ast` documentation about :func:`ast.literal_eval` being "safe" for use on untrusted input while at the same time warning that it can crash the process. The latter statement is true and is deemed unfixable without a large amount of work unsuitable for a bugfix. So we keep the warning and no longer claim that ``literal_eval`` is safe. .. .. bpo: 41825 .. date: 2020-09-22-12-32-16 .. nonce: npcaCb .. section: Documentation Restructured the documentation for the :func:`os.wait* ` family of functions, and improved the docs for :func:`os.waitid` with more explanation of the possible argument constants. .. .. date: 2022-12-05-16-12-56 .. gh-issue: 99892 .. nonce: sz_eW8 .. section: Tests Skip test_normalization() of test_unicodedata if it fails to download NormalizationTest.txt file from pythontest.net. Patch by Victor Stinner. .. .. date: 2022-12-01-18-55-18 .. gh-issue: 99934 .. nonce: Ox3Fqf .. section: Tests Correct test_marsh on (32 bit) x86: test_deterministic sets was failing. .. .. date: 2022-11-21-19-21-30 .. gh-issue: 99659 .. nonce: 4gP0nm .. section: Tests Optional big memory tests in ``test_sqlite3`` now catch the correct :exc:`sqlite.DataError` exception type in case of too large strings and/or blobs passed. .. .. date: 2022-10-26-15-19-20 .. gh-issue: 98713 .. nonce: Lnu32R .. section: Tests Fix a bug in the :mod:`typing` tests where a test relying on CPython-specific implementation details was not decorated with ``@cpython_only`` and was not skipped on other implementations. .. .. date: 2022-10-15-07-46-48 .. gh-issue: 87390 .. nonce: asR-Zo .. section: Tests Add tests for star-unpacking with PEP 646, and some other miscellaneous PEP 646 tests. .. .. date: 2022-10-12-14-57-06 .. gh-issue: 96853 .. nonce: ANe-bw .. section: Tests Added explicit coverage of ``Py_Initialize`` (and hence ``Py_InitializeEx``) back to the embedding tests (all other embedding tests migrated to ``Py_InitializeFromConfig`` in Python 3.11) .. .. bpo: 34272 .. date: 2018-07-29-15-59-51 .. nonce: lVX2uR .. section: Tests Some C API tests were moved into the new Lib/test/test_capi/ directory. .. .. date: 2022-11-24-02-58-10 .. gh-issue: 99086 .. nonce: DV_4Br .. section: Build Fix ``-Wimplicit-int``, ``-Wstrict-prototypes``, and ``-Wimplicit-function-declaration`` compiler warnings in :program:`configure` checks. .. .. date: 2022-11-15-08-40-22 .. gh-issue: 99337 .. nonce: 5LoQDE .. section: Build Fix a compilation issue with GCC 12 on macOS. .. .. date: 2022-11-04-02-58-10 .. gh-issue: 99086 .. nonce: DV_4Br .. section: Build Fix ``-Wimplicit-int`` compiler warning in :program:`configure` check for ``PTHREAD_SCOPE_SYSTEM``. .. .. date: 2022-11-03-08-10-49 .. gh-issue: 98872 .. nonce: gdsR8X .. section: Build Fix a possible fd leak in ``Programs/_freeze_module.c`` introduced in Python 3.11. .. .. date: 2022-11-02-19-25-07 .. gh-issue: 99016 .. nonce: R05NkD .. section: Build Fix build with ``PYTHON_FOR_REGEN=python3.8``. .. .. date: 2022-11-02-18-45-35 .. gh-issue: 97731 .. nonce: zKpTlj .. section: Build Specify the full path to the source location for ``make docclean`` (needed for cross-builds). .. .. date: 2022-10-26-12-37-52 .. gh-issue: 98707 .. nonce: eVXGEx .. section: Build Don't use vendored ``libmpdec`` headers if :option:`--with-system-libmpdec` is passed to :program:`configure`. Don't use vendored ``libexpat`` headers if :option:`--with-system-expat` is passed to :program:`!configure`. .. .. date: 2022-09-20-12-43-44 .. gh-issue: 96761 .. nonce: IF29kR .. section: Build Fix the build process of clang compiler for :program:`_bootstrap_python` if LTO optimization is applied. Patch by Matthias Görgens and Dong-hee Na. .. .. date: 2022-09-17-11-19-24 .. gh-issue: 96883 .. nonce: p_gr62 .. section: Build ``wasm32-emscripten`` builds for browsers now include :mod:`concurrent.futures` for :mod:`asyncio` and :mod:`unittest.mock`. .. .. date: 2022-08-26-11-09-11 .. gh-issue: 84461 .. nonce: Nsdn_R .. section: Build ``wasm32-emscripten`` platform no longer builds :mod:`resource` module, :func:`~os.getresuid`, :func:`~os.getresgid`, and their setters. The APIs are stubs and not functional. .. .. date: 2022-06-25-23-25-47 .. gh-issue: 94280 .. nonce: YhEyW_ .. section: Build Updated pegen regeneration script on Windows to find and use Python 3.9 or higher. Prior to this, pegen regeneration already required 3.9 or higher, but the script may have used lower versions of Python. .. .. date: 2022-11-23-17-17-16 .. gh-issue: 99345 .. nonce: jOa3-f .. section: Windows Use faster initialization functions to detect install location for Windows Store package .. .. date: 2022-11-21-19-50-18 .. gh-issue: 98629 .. nonce: tMmB_B .. section: Windows Fix initialization of :data:`sys.version` and ``sys._git`` on Windows .. .. date: 2022-11-16-19-03-21 .. gh-issue: 99442 .. nonce: 6Dgk3Q .. section: Windows Fix handling in :ref:`launcher` when ``argv[0]`` does not include a file extension. .. .. date: 2022-11-01-11-07-33 .. gh-issue: 98689 .. nonce: 0f6e_N .. section: Windows Update Windows builds to zlib v1.2.13. v1.2.12 has CVE-2022-37434, but the vulnerable ``inflateGetHeader`` API is not used by Python. .. .. date: 2022-11-01-00-37-13 .. gh-issue: 98790 .. nonce: fpaPAx .. section: Windows Assumes that a missing ``DLLs`` directory means that standard extension modules are in the executable's directory. .. .. date: 2022-10-27-20-30-16 .. gh-issue: 98745 .. nonce: v06p4r .. section: Windows Update :file:`py.exe` launcher to install 3.11 by default and 3.12 on request. .. .. date: 2022-10-26-17-43-09 .. gh-issue: 98692 .. nonce: bOopfZ .. section: Windows Fix the :ref:`launcher` ignoring unrecognized shebang lines instead of treating them as local paths .. .. date: 2022-10-25-10-34-17 .. gh-issue: 94328 .. nonce: 19NhdU .. section: Windows Update Windows installer to use SQLite 3.39.4. .. .. date: 2022-10-02-11-59-23 .. gh-issue: 97728 .. nonce: dIdlPE .. section: Windows Fix possible crashes caused by the use of uninitialized variables when pass invalid arguments in :func:`os.system` on Windows and in Windows-specific modules (like ``winreg``). .. .. date: 2022-09-23-15-40-04 .. gh-issue: 96965 .. nonce: CsnEGs .. section: Windows Update libffi to 3.4.3 .. .. date: 2022-08-30-12-01-51 .. gh-issue: 94781 .. nonce: OxO-Gr .. section: Windows Fix :file:`pcbuild.proj` to clean previous instances of ouput files in ``Python\deepfreeze`` and ``Python\frozen_modules`` directories on Windows. Patch by Charlie Zhao. .. .. bpo: 40882 .. date: 2020-06-06-15-10-37 .. nonce: UvNbdj .. section: Windows Fix a memory leak in :class:`multiprocessing.shared_memory.SharedMemory` on Windows. .. .. date: 2022-11-25-09-23-20 .. gh-issue: 87235 .. nonce: SifjCD .. section: macOS On macOS ``python3 /dev/fd/9 9