Log Message:
python312 py312-html-docs: updated to 3.12.3

Python 3.12.3

Security

gh-115398: Allow controlling Expat >=2.6.0 reparse deferral (CVE-2023-52425) \ 
by adding five new methods:
xml.etree.ElementTree.XMLParser.flush()
xml.etree.ElementTree.XMLPullParser.flush()
xml.parsers.expat.xmlparser.GetReparseDeferralEnabled()
xml.parsers.expat.xmlparser.SetReparseDeferralEnabled()
xml.sax.expatreader.ExpatParser.flush()
gh-115399: Update bundled libexpat to 2.6.0
gh-115243: Fix possible crashes in collections.deque.index() when the deque is \ 
concurrently modified.
gh-114572: ssl.SSLContext.cert_store_stats() and ssl.SSLContext.get_ca_certs() \ 
now correctly lock access to the certificate store, when the ssl.SSLContext is \ 
shared across multiple threads.

Core and Builtins

gh-109120: Added handle of incorrect star expressions, e.g f(3, *). Patch by \ 
Grigoryev Semyon
gh-99108: Updated the hashlib built-in HACL* project C code from upstream that \ 
we use for many implementations when they are not present via OpenSSL in a given \ 
build. This also avoids the rare potential for a C symbol name one definition \ 
rule linking issue.
gh-116735: For INSTRUMENTED_CALL_FUNCTION_EX, set arg0 to sys.monitoring.MISSING \ 
instead of None for CALL event.
gh-113964: Starting new threads and process creation through os.fork() are now \ 
only prevented once all non-daemon threads exit.
gh-116604: Respect the status of the garbage collector when indirect calls are \ 
made via PyErr_CheckSignals() and the evaluation breaker. Patch by Pablo Galindo
gh-116626: Ensure INSTRUMENTED_CALL_FUNCTION_EX always emits CALL
gh-116296: Fix possible refleak in object.__reduce__() internal error handling.
gh-116034: Fix location of the error on a failed assertion.
gh-115823: Properly calculate error ranges in the parser when raising \ 
SyntaxError exceptions caused by invalid byte sequences. Patch by Pablo Galindo
gh-112087: For an empty reverse iterator for list will be reduced to reversed(). \ 
Patch by Donghee Na.
gh-115154: Fix a bug that was causing the tokenize.untokenize() function to \ 
handle unicode named literals incorrectly. Patch by Pablo Galindo
gh-114828: Fix compilation crashes in uncommon code examples using super() \ 
inside a comprehension in a class body.
gh-115011: Setters for members with an unsigned integer type now support the \ 
same range of valid values for objects that has a __index__() method as for int.
gh-112215: Change the C recursion limits to more closely reflect the underlying \ 
platform limits.
gh-96497: Fix incorrect resolution of mangled class variables used in assignment \ 
expressions in comprehensions.

Library

gh-117467: Preserve mailbox ownership when rewriting in mailbox.mbox.flush(). \ 
Patch by Tony Mountifield.

gh-117310: Fixed an unlikely early & extra Py_DECREF triggered crash in ssl \ 
when creating a new _ssl._SSLContext if CPython was built implausibly such that \ 
the default cipher list is empty or the SSL library it was linked against \ 
reports a failure from its C SSL_CTX_set_cipher_list() API.

gh-117178: Fix regression in lazy loading of self-referential modules, \ 
introduced in gh-114781.

gh-117084: Fix zipfile extraction for directory entries with the name containing \ 
backslashes on Windows.

gh-117110: Fix a bug that prevents subclasses of typing.Any to be instantiated \ 
with arguments. Patch by Chris Fu.

gh-90872: On Windows, subprocess.Popen.wait() no longer calls \ 
WaitForSingleObject() with a negative timeout: pass 0 ms if the timeout is \ 
negative. Patch by Victor Stinner.

gh-116957: configparser: Don’t leave ConfigParser values in an invalid state \ 
(stored as a list instead of a str) after an earlier read raised \ 
DuplicateSectionError or DuplicateOptionError.

gh-90095: Ignore empty lines and comments in .pdbrc

gh-116764: Restore support of None and other false values in urllib.parse \ 
functions parse_qs() and parse_qsl(). Also, they now raise a TypeError for \ 
non-zero integers and non-empty sequences.

gh-116811: In PathFinder.invalidate_caches, delegate to \ 
MetadataPathFinder.invalidate_caches.

gh-116600: Fix repr() for global Flag members.

gh-116484: Change automatically generated tkinter.Checkbutton widget names to \ 
avoid collisions with automatically generated tkinter.ttk.Checkbutton widget \ 
names within the same parent widget.

gh-116401: Fix blocking os.fwalk() and shutil.rmtree() on opening named pipe.

gh-116143: Fix a race in pydoc _start_server, eliminating a window in which \ 
_start_server can return a thread that is “serving” but without a docserver \ 
set.

gh-116325: typing: raise SyntaxError instead of AttributeError on forward \ 
references as empty strings.

gh-90535: Fix support of interval values > 1 in \ 
logging.TimedRotatingFileHandler for when='MIDNIGHT' and when='Wx'.

gh-115978: Disable preadv(), readv(), pwritev(), and writev() on WASI.

Under wasmtime for WASI 0.2, these functions don’t pass test_posix \ 
(https://github.com/bytecodealliance/wasmtime/issues/7830).

gh-88352: Fix the computation of the next rollover time in the \ 
logging.TimedRotatingFileHandler handler. computeRollover() now always returns a \ 
timestamp larger than the specified time and works correctly during the DST \ 
change. doRollover() no longer overwrite the already rolled over file, saving \ 
from data loss when run at midnight or during repeated time at the DST change.

gh-87115: Set __main__.__spec__ to None when running a script with pdb

gh-76511: Fix UnicodeEncodeError in email.Message.as_string() that results when \ 
a message that claims to be in the ascii character set actually has non-ascii \ 
characters. Non-ascii characters are now replaced with the U+FFFD replacement \ 
character, like in the replace error handler.

gh-116040: [Enum] fix by-value calls when second value is falsey; e.g. Cardinal(1, 0)

gh-75988: Fixed unittest.mock.create_autospec() to pass the call through to the \ 
wrapped object to return the real result.

gh-115881: Fix issue where ast.parse() would incorrectly flag conditional \ 
context managers (such as with (x() if y else z()): ...) as invalid syntax if \ 
feature_version=(3, 8) was passed. This reverts changes to the grammar made as \ 
part of gh-94949.

gh-115886: Fix silent truncation of the name with an embedded null character in \ 
multiprocessing.shared_memory.SharedMemory.

gh-115809: Improve algorithm for computing which rolled-over log files to delete \ 
in logging.TimedRotatingFileHandler. It is now reliable for handlers without \ 
namer and with arbitrary deterministic namer that leaves the datetime part in \ 
the file name unmodified.

gh-74668: urllib.parse functions parse_qs() and parse_qsl() now support bytes \ 
arguments containing raw and percent-encoded non-ASCII data.

gh-67044: csv.writer() now always quotes or escapes '\r' and '\n', regardless of \ 
lineterminator value.

gh-115712: csv.writer() now quotes empty fields if delimiter is a space and \ 
skipinitialspace is true and raises exception if quoting is not possible.

gh-112364: Fixed ast.unparse() to handle format_spec with ", ' or \\. \ 
Patched by Frank Hoffmann.

gh-111358: Fix a bug in asyncio.BaseEventLoop.shutdown_default_executor() to \ 
ensure the timeout passed to the coroutine behaves as expected.

gh-115618: Fix improper decreasing the reference count for None argument in \ 
property methods getter(), setter() and deleter().

gh-115570: A DeprecationWarning is no longer omitted on access to the __doc__ \ 
attributes of the deprecated typing.io and typing.re pseudo-modules.

gh-112006: Fix inspect.unwrap() for types with the __wrapper__ data descriptor.

gh-101293: Support callables with the __call__() method and types with __new__() \ 
and __init__() methods set to class methods, static methods, bound methods, \ 
partial functions, and other types of methods and descriptors in \ 
inspect.Signature.from_callable().

gh-115392: Fix a bug in doctest where incorrect line numbers would be reported \ 
for decorated functions.

gh-114563: Fix several format() bugs when using the C implementation of Decimal: \ 
* memory leak in some rare cases when using the z format option (coerce negative \ 
0) * incorrect output when applying the z format option to type F (fixed-point \ 
with capital NAN / INF) * incorrect output when applying the # format option \ 
(alternate form)

gh-115197: urllib.request no longer resolves the hostname before checking it \ 
against the system’s proxy bypass list on macOS and Windows.

gh-115165: Most exceptions are now ignored when attempting to set the \ 
__orig_class__ attribute on objects returned when calling typing generic aliases \ 
(including generic aliases created using typing.Annotated). Previously only \ 
AttributeError was ignored. Patch by Dave Shawley.

gh-115133: Fix tests for XMLPullParser with Expat 2.6.0.

gh-115059: io.BufferedRandom.read1() now flushes the underlying write buffer.

gh-79382: Trailing ** no longer allows to match files and non-existing paths in \ 
recursive glob().

gh-114071: Support tuple subclasses using auto() for enum member value.

gh-114763: Protect modules loaded with importlib.util.LazyLoader from race \ 
conditions when multiple threads try to access attributes before the loading is \ 
complete.

gh-97959: Fix rendering class methods, bound methods, method and function \ 
aliases in pydoc. Class methods no longer have “method of builtins.type \ 
instance” note. Corresponding notes are now added for class and unbound \ 
methods. Method and function aliases now have references to the module or the \ 
class where the origin was defined if it differs from the current. Bound methods \ 
are now listed in the static methods section. Methods of builtin classes are now \ 
supported as well as methods of Python classes.

gh-112281: Allow creating union of types for typing.Annotated with unhashable \ 
metadata.

gh-111775: Fix importlib.resources.simple.ResourceHandle.open() for text mode, \ 
added missed stream argument.

gh-90095: Make .pdbrc and -c work with any valid pdb commands.

gh-107155: Fix incorrect output of help(x) where x is a lambda function, which \ 
has an __annotations__ dictionary attribute with a "return" key.

gh-105866: Fixed _get_slots bug which caused error when defining dataclasses \ 
with slots and a weakref_slot.

gh-60346: Fix ArgumentParser inconsistent with parse_known_args.

gh-100985: Update HTTPSConnection to consistently wrap IPv6 Addresses when using \ 
a proxy.

gh-100884: email: fix misfolding of comma in address-lists over multiple lines \ 
in combination with unicode encoding.

gh-95782: Fix io.BufferedReader.tell(), io.BufferedReader.seek(), \ 
_pyio.BufferedReader.tell(), io.BufferedRandom.tell(), io.BufferedRandom.seek() \ 
and _pyio.BufferedRandom.tell() being able to return negative offsets.

gh-96310: Fix a traceback in argparse when all options in a mutually exclusive \ 
group are suppressed.

gh-93205: Fixed a bug in logging.handlers.TimedRotatingFileHandler where \ 
multiple rotating handler instances pointing to files with the same name but \ 
different extensions would conflict and not delete the correct files.

bpo-44865: Add missing call to localization function in argparse.

bpo-43952: Fix multiprocessing.connection.Listener.accept() to accept empty \ 
bytes as authkey. Not accepting empty bytes as key causes it to hang \ 
indefinitely.

bpo-42125: linecache: get module name from __spec__ if available. This allows \ 
getting source code for the __main__ module when a custom loader is used.

gh-66543: Make mimetypes.guess_type() properly parsing of URLs with only a host \ 
name, URLs containing fragment or query, and filenames with only a UNC \ 
sharepoint on Windows. Based on patch by Dong-hee Na.

bpo-33775: Add ‘default’ and ‘version’ help text for localization in \ 
argparse.

Documentation

gh-115399: Document CVE-2023-52425 of Expat <2.6.0 under “XML \ 
vulnerabilities”.
gh-115233: Fix an example for LoggerAdapter in the Logging Cookbook.

Tests

gh-83434: Disable JUnit XML output (--junit-xml=FILE command line option) in \ 
regrtest when hunting for reference leaks (-R option). Patch by Victor Stinner.
gh-117187: Fix XML tests for vanilla Expat <2.6.0.
gh-116333: Tests of TLS related things (error codes, etc) were updated to be \ 
more lenient about specific error message strings and behaviors as seen in the \ 
BoringSSL and AWS-LC forks of OpenSSL.
gh-115979: Update test_importlib so that it passes under WASI SDK 21.
gh-112536: Add –tsan to test.regrtest for running TSAN tests in reasonable \ 
execution times. Patch by Donghee Na.
gh-116307: Added import helper isolated_modules as CleanImport does not remove \ 
modules imported during the context. Use it in importlib.resources tests to \ 
avoid leaving mod around to impede importlib.metadata tests.
gh-115720: Leak tests (-R, --huntrleaks) now show a summary of the number of \ 
leaks found in each iteration.
gh-115122: Add --bisect option to regrtest test runner: run failed tests with \ 
test.bisect_cmd to identify failing tests. Patch by Victor Stinner.
gh-115596: Fix ProgramPriorityTests in test_os permanently changing the process \ 
priority.

Build

gh-116313: Get WASI builds to work under wasmtime 18 w/ WASI 0.2/preview2 primitives.
gh-116117: Backport libb2’s PR #42 to fix compiling CPython on 32-bit Windows \ 
with clang-cl.
gh-115167: Avoid vendoring vcruntime140_threads.dll when building with Visual \ 
Studio 2022 version 17.8.
gh-112536: Add support for thread sanitizer (TSAN)

Windows

gh-117267: Ensure DirEntry.stat().st_ctime behaves consistently with os.stat() \ 
during the deprecation period of st_ctime by containing the same value as \ 
st_birthtime. After the deprecation period, st_ctime will be the metadata change \ 
time (or unavailable through DirEntry), and only st_birthtime will contain the \ 
creation time.
gh-116773: Fix instances of <_overlapped.Overlapped object at 0xXXX> still \ 
has pending operation at deallocation, the process may crash.
gh-91227: Fix the asyncio ProactorEventLoop implementation so that sending a \ 
datagram to an address that is not listening does not prevent receiving any more \ 
datagrams.
gh-115554: The installer now has more strict rules about updating the Python \ 
Launcher for Windows. In general, most users only have a single launcher \ 
installed and will see no difference. When multiple launchers have been \ 
installed, the option to install the launcher is disabled until all but one have \ 
been removed. Downgrading the launcher (which was never allowed) is now more \ 
obviously blocked.
gh-115543: Python Launcher for Windows can now detect Python 3.13 when installed \ 
from the Microsoft Store, and will install Python 3.12 by default when \ 
PYLAUNCHER_ALLOW_INSTALL is set.
gh-115049: Fixes py.exe launcher failing when run as users without user profiles.
gh-115009: Update Windows installer to use SQLite 3.45.1.
IDLE
gh-88516: On macOS show a proxy icon in the title bar of editor windows to match \ 
platform behaviour.

Tools/Demos

gh-113516: Don’t set LDSHARED when building for WASI.

C API

gh-117021: Fix integer overflow in PyLong_AsPid() on non-Windows 64-bit platforms.
gh-116869: Make the C API compatible with -Werror=declaration-after-statement \ 
compiler flag again. Patch by Victor Stinner.