Log Message:
python311 py311-html-docs: updated to 3.11.6

Python 3.11.6 final

Core and Builtins
gh-109351: Fix crash when compiling an invalid AST involving a named (walrus) \ 
expression.

gh-109207: Fix a SystemError in __repr__ of symtable entry object.

gh-109179: Fix bug where the C traceback display drops notes from SyntaxError.

gh-88943: Improve syntax error for non-ASCII character that follows a numerical \ 
literal. It now points on the invalid non-ASCII character, not on the valid \ 
numerical literal.

gh-108959: Fix caret placement for error locations for subscript and binary \ 
operations that involve non-semantic parentheses and spaces. Patch by Pablo \ 
Galindo

gh-108520: Fix multiprocessing.synchronize.SemLock.__setstate__() to properly \ 
initialize multiprocessing.synchronize.SemLock._is_fork_ctx. This fixes a \ 
regression when passing a SemLock accross nested processes.

Rename multiprocessing.synchronize.SemLock.is_fork_ctx to \ 
multiprocessing.synchronize.SemLock._is_fork_ctx to avoid exposing it as public \ 
API.

Library
gh-110036: On Windows, multiprocessing Popen.terminate() now catchs \ 
PermissionError and get the process exit code. If the process is still running, \ 
raise again the PermissionError. Otherwise, the process terminated as expected: \ 
store its exit code. Patch by Victor Stinner.
gh-110038: Fixed an issue that caused KqueueSelector.select() to not return all \ 
the ready events in some cases when a file descriptor is registered for both \ 
read and write.
gh-109631: re functions such as re.findall(), re.split(), re.search() and \ 
re.sub() which perform short repeated matches can now be interrupted by user.
gh-109593: Avoid deadlocking on a reentrant call to the multiprocessing resource \ 
tracker. Such a reentrant call, though unlikely, can happen if a GC pass invokes \ 
the finalizer for a multiprocessing object such as SemLock.
gh-109613: Fix os.stat() and os.DirEntry.stat(): check for exceptions. \ 
Previously, on Python built in debug mode, these functions could trigger a fatal \ 
Python error (and abort the process) when a function succeeded with an exception \ 
set. Patch by Victor Stinner.
gh-109375: The pdb alias command now prevents registering aliases without arguments.
gh-107219: Fix a race condition in concurrent.futures. When a process in the \ 
process pool was terminated abruptly (while the future was running or pending), \ 
close the connection write end. If the call queue is blocked on sending bytes to \ 
a worker process, closing the connection write end interrupts the send, so the \ 
queue can be closed. Patch by Victor Stinner.
gh-50644: Attempts to pickle or create a shallow or deep copy of codecs streams \ 
now raise a TypeError. Previously, copying failed with a RecursionError, while \ 
pickling produced wrong results that eventually caused unpickling to fail with a \ 
RecursionError.
gh-108987: Fix _thread.start_new_thread() race condition. If a thread is created \ 
during Python finalization, the newly spawned thread now exits immediately \ 
instead of trying to access freed memory and lead to a crash. Patch by Victor \ 
Stinner.
gh-108843: Fix an issue in ast.unparse() when unparsing f-strings containing \ 
many quote types.
gh-108682: Enum: raise TypeError if super().__new__() is called from a custom \ 
__new__.
gh-105829: Fix concurrent.futures.ProcessPoolExecutor deadlock
gh-64662: Fix support for virtual tables in sqlite3.Connection.iterdump(). Patch \ 
by Aviv Palivoda.
gh-107913: Fix possible losses of errno and winerror values in OSError \ 
exceptions if they were cleared or modified by the cleanup code before creating \ 
the exception object.
gh-104372: On Linux where subprocess can use the vfork() syscall for faster \ 
spawning, prevent the parent process from blocking other threads by dropping the \ 
GIL while it waits for the vfork’ed child process exec() outcome. This \ 
prevents spawning a binary from a slow filesystem from blocking the rest of the \ 
application.
gh-84867: unittest.TestLoader no longer loads test cases from exact \ 
unittest.TestCase and unittest.FunctionTestCase classes.

Documentation
gh-109209: The minimum Sphinx version required for the documentation is now 4.2.
gh-105052: Update timeit doc to specify that time in seconds is just the default.
gh-102823: Document the return type of x // y when x and y have type float.

Tests
gh-110031: Skip test_threading tests using thread+fork if Python is built with \ 
Address Sanitizer (ASAN). Patch by Victor Stinner.
gh-110088: Fix test_asyncio timeouts: don’t measure the maximum duration, a \ 
test should not measure a CI performance. Only measure the minimum duration when \ 
a task has a timeout or delay. Add CLOCK_RES to test_asyncio.utils. Patch by \ 
Victor Stinner.
gh-110033: Fix test_interprocess_signal() of test_signal. Make sure that the \ 
subprocess.Popen object is deleted before the test raising an exception in a \ 
signal handler. Otherwise, Popen.__del__() can get the exception which is logged \ 
as Exception ignored in: ... and the test fails. Patch by Victor Stinner.
gh-109594: Fix test_timeout() of test_concurrent_futures.test_wait. Remove the \ 
future which may or may not complete depending if it takes longer than the \ 
timeout ot not. Keep the second future which does not complete before wait() \ 
timeout. Patch by Victor Stinner.
gh-109748: Fix test_zippath_from_non_installed_posix() of test_venv: don’t \ 
copy __pycache__/ sub-directories, because they can be modified by other Python \ 
tests running in parallel. Patch by Victor Stinner.
gh-103053: Skip test_freeze_simple_script() of test_tools.test_freeze if Python \ 
is built with ./configure --enable-optimizations, which means with Profile \ 
Guided Optimization (PGO): it just makes the test too slow. The freeze tool is \ 
tested by many other CIs with other (faster) compiler flags. Patch by Victor \ 
Stinner.
gh-109396: Fix test_socket.test_hmac_sha1() in FIPS mode. Use a longer key: FIPS \ 
mode requires at least of at least 112 bits. The previous key was only 32 bits. \ 
Patch by Victor Stinner.
gh-104736: Fix test_gdb on Python built with LLVM clang 16 on Linux ppc64le (ex: \ 
Fedora 38). Search patterns in gdb “bt” command output to detect when gdb \ 
fails to retrieve the traceback. For example, skip a test if Backtrace stopped: \ 
frame did not save the PC is found. Patch by Victor Stinner.
gh-109237: Fix test_site.test_underpth_basic() when the working directory \ 
contains at least one non-ASCII character: encode the ._pth file to UTF-8 and \ 
enable the UTF-8 Mode to use UTF-8 for the child process stdout. Patch by Victor \ 
Stinner.
gh-109230: Fix test_pyexpat.test_exception(): it can now be run from a directory \ 
different than Python source code directory. Before, the test failed in this \ 
case. Skip the test if Modules/pyexpat.c source is not available. Skip also the \ 
test on Python implementations other than CPython. Patch by Victor Stinner.
gh-109015: Fix test_asyncio, test_imaplib and test_socket tests on FreeBSD if \ 
the TCP blackhole is enabled (sysctl net.inet.tcp.blackhole). Skip the few tests \ 
which failed with ETIMEDOUT which such non standard configuration. Currently, \ 
the FreeBSD GCP image enables TCP and UDP blackhole (sysctl \ 
net.inet.tcp.blackhole=2 and sysctl net.inet.udp.blackhole=1). Patch by Victor \ 
Stinner.
gh-91960: Skip test_gdb if gdb is unable to retrieve Python frame objects: if a \ 
frame is <optimized out>. When Python is built with “clang -Og”, gdb \ 
can fail to retrive the frame parameter of _PyEval_EvalFrameDefault(). In this \ 
case, tests like py_bt() are likely to fail. Without getting access to Python \ 
frames, python-gdb.py is mostly clueless on retrieving the Python traceback. \ 
Moreover, test_gdb is no longer skipped on macOS if Python is built with Clang. \ 
Patch by Victor Stinner.
gh-108962: Skip test_tempfile.test_flags() if chflags() fails with “OSError: \ 
[Errno 45] Operation not supported” (ex: on FreeBSD 13). Patch by Victor \ 
Stinner.
gh-89392: Removed support of test_main() function in tests. They now always use \ 
normal unittest test runner.
gh-108851: Fix test_tomllib recursion tests for WASI buildbots: reduce the \ 
recursion limit and compute the maximum nested array/dict depending on the \ 
current available recursion limit. Patch by Victor Stinner.
gh-108851: Add get_recursion_available() and get_recursion_depth() functions to \ 
the test.support module. Patch by Victor Stinner.
gh-108822: regrtest now computes statistics on all tests: successes, failures \ 
and skipped. test_netrc, test_pep646_syntax and test_xml_etree now return \ 
results in their test_main() function. Patch by Victor Stinner and Alex Waygood.
gh-108388: Convert test_concurrent_futures to a package of 7 sub-tests. Patch by \ 
Victor Stinner.
gh-108388: Split test_multiprocessing_fork, test_multiprocessing_forkserver and \ 
test_multiprocessing_spawn into test packages. Each package is made of 4 \ 
sub-tests: processes, threads, manager and misc. It allows running more tests in \ 
parallel and so reduce the total test duration. Patch by Victor Stinner.
gh-101634: When running the Python test suite with -jN option, if a worker \ 
stdout cannot be decoded from the locale encoding report a failed testn so the \ 
exitcode is non-zero. Patch by Victor Stinner.
gh-100086: The Python test runner (libregrtest) now logs Python build \ 
information like “debug” vs “release” build, or LTO and PGO \ 
optimizations. Patch by Victor Stinner.
gh-98903: The Python test suite now fails wit exit code 4 if no tests ran. It \ 
should help detecting typos in test names and test methods.
gh-95027: On Windows, when the Python test suite is run with the -jN option, the \ 
ANSI code page is now used as the encoding for the stdout temporary file, rather \ 
than using UTF-8 which can lead to decoding errors. Patch by Victor Stinner.
gh-93353: regrtest now checks if a test leaks temporary files or directories if \ 
run with -jN option. Patch by Victor Stinner.

Build
gh-63760: Fix Solaris build: no longer redefine the gethostname() function. \ 
Solaris defines the function since 2005. Patch by Victor Stinner, original patch \ 
by Jakub Kulík.
gh-108740: Fix a race condition in make regen-all. The deepfreeze.c source and \ 
files generated by Argument Clinic are now generated or updated before \ 
generating “global objects”. Previously, some identifiers may miss depending \ 
on the order in which these files were generated. Patch by Victor Stinner.

Windows
gh-109991: Update Windows build to use OpenSSL 3.0.11.
gh-107565: Update Windows build to use OpenSSL 3.0.10.

macOS
gh-109991: Update macOS installer to use OpenSSL 3.0.11.

Tools/Demos
gh-109991: Update GitHub CI workflows to use OpenSSL 3.0.11 and multissltests to \ 
use 1.1.1w, 3.0.11, and 3.1.3.