Log message:
python39: Fix PR pkg/56167

The function implicit declaration occurs on FreeBSD 12.2 but not on
FreeBSD 13.0. The fix comes from python3.10.

Log message:
python39: updated to 3.9.5

Python 3.9.5 final

Security
bpo-43434: Creating a sqlite3.Connection object now also produces a \ 
sqlite3.connect auditing event. Previously this event was only produced by \ 
sqlite3.connect() calls. Patch by Erlend E. Aasland.
bpo-43882: The presence of newline or tab characters in parts of a URL could \ 
allow some forms of attacks.

Following the controlling specification for URLs defined by WHATWG \ 
urllib.parse() now removes ASCII newlines and tabs from URLs, preventing such \ 
attacks.
bpo-43472: Ensures interpreter-level audit hooks receive the \ 
cpython.PyInterpreterState_New event when called through the _xxsubinterpreters \ 
module.
bpo-36384: ipaddress module no longer accepts any leading zeros in IPv4 address \ 
strings. Leading zeros are ambiguous and interpreted as octal notation by some \ 
libraries. For example the legacy function socket.inet_aton() treats leading \ 
zeros as octal notatation. glibc implementation of modern inet_pton() does not \ 
accept any leading zeros. For a while the ipaddress module used to accept \ 
ambiguous leading zeros.
bpo-43075: Fix Regular Expression Denial of Service (ReDoS) vulnerability in \ 
urllib.request.AbstractBasicAuthHandler. The ReDoS-vulnerable regex has \ 
quadratic worst-case complexity and it allows cause a denial of service when \ 
identifying crafted invalid RFCs. This ReDoS issue is on the client side and \ 
needs remote attackers to control the HTTP server.
bpo-42800: Audit hooks are now fired for frame.f_code, traceback.tb_frame, and \ 
generator code/frame attribute access.

Core and Builtins
bpo-43105: Importlib now resolves relative paths when creating module spec \ 
objects from file locations.
bpo-42924: Fix bytearray repetition incorrectly copying data from the start of \ 
the buffer, even if the data is offset within the buffer (e.g. after reassigning \ 
a slice at the start of the bytearray to a shorter byte string).

Library
bpo-43993: Update bundled pip to 21.1.1.
bpo-43937: Fixed the turtle module working with non-default root window.
bpo-43930: Update bundled pip to 21.1 and setuptools to 56.0.0
bpo-43920: OpenSSL 3.0.0: load_verify_locations() now returns a consistent error \ 
message when cadata contains no valid certificate.
bpo-43607: urllib can now convert Windows paths with \\?\ prefixes into URL paths.
bpo-43284: platform.win32_ver derives the windows version from \ 
sys.getwindowsversion().platform_version which in turn derives the version from \ 
kernel32.dll (which can be of a different version than Windows itself). \ 
Therefore change the platform.win32_ver to determine the version using the \ 
platform module’s _syscmd_ver private function to return an accurate version.
bpo-42248: [Enum] ensure exceptions raised in _missing__ are released
bpo-43799: OpenSSL 3.0.0: define OPENSSL_API_COMPAT 1.1.1 to suppress \ 
deprecation warnings. Python requires OpenSSL 1.1.1 APIs.
bpo-43794: Add ssl.OP_IGNORE_UNEXPECTED_EOF constants (OpenSSL 3.0.0)
bpo-43789: OpenSSL 3.0.0: Don’t call the password callback function a second \ 
time when first call has signaled an error condition.
bpo-43788: The header files for ssl error codes are now OpenSSL \ 
version-specific. Exceptions will now show correct reason and library codes. The \ 
make_ssl_data.py script has been rewritten to use OpenSSL’s text file with \ 
error codes.
bpo-43655: tkinter dialog windows are now recognized as dialogs by window \ 
managers on macOS and X Window.
bpo-43534: turtle.textinput() and turtle.numinput() create now a transient \ 
window working on behalf of the canvas window.
bpo-43522: Fix problem with hostname_checks_common_name. OpenSSL does not copy \ 
hostflags from struct SSL_CTX to struct SSL.
bpo-42967: Allow bytes separator argument in urllib.parse.parse_qs and \ 
urllib.parse.parse_qsl when parsing str query strings. Previously, this raised a \ 
TypeError.
bpo-43176: Fixed processing of a dataclass that inherits from a frozen dataclass \ 
with no fields. It is now correctly detected as an error.
bpo-41735: Fix thread locks in zlib module may go wrong in rare case. Patch by \ 
Ma Lin.
bpo-36470: Fix dataclasses with InitVars and replace(). Patch by Claudiu Popa.
bpo-32745: Fix a regression in the handling of ctypes’ ctypes.c_wchar_p type: \ 
embedded null characters would cause a ValueError to be raised. Patch by Zackery \ 
Spytz.

Documentation
bpo-43959: The documentation on the PyContextVar C-API was clarified.
bpo-43938: Update dataclasses documentation to express that FrozenInstanceError \ 
is derived from AttributeError.
bpo-43755: Update documentation to reflect that unparenthesized lambda \ 
expressions can no longer be the expression part in an if clause in \ 
comprehensions and generator expressions since Python 3.9.
bpo-43739: Fixing the example code in Doc/extending/extending.rst to declare and \ 
initialize the pmodule variable to be of the right type.

Tests
bpo-43961: Fix test_logging.test_namer_rotator_inheritance() on Windows: use \ 
os.replace() rather than os.rename(). Patch by Victor Stinner.
bpo-43842: Fix a race condition in the SMTP test of test_logging. Don’t close \ 
a file descriptor (socket) from a different thread while asyncore.loop() is \ 
polling the file descriptor. Patch by Victor Stinner.
bpo-43811: Tests multiple OpenSSL versions on GitHub Actions. Use ccache to \ 
speed up testing.
bpo-43791: OpenSSL 3.0.0: Disable testing of legacy protocols TLS 1.0 and 1.1. \ 
Tests are failing with TLSV1_ALERT_INTERNAL_ERROR.

Windows
bpo-35306: Avoid raising errors from pathlib.Path.exists() when passed an \ 
invalid filename.
bpo-38822: Fixed os.stat() failing on inaccessible directories with a trailing \ 
slash, rather than falling back to the parent directory’s metadata. This \ 
implicitly affected os.path.exists() and os.path.isdir().
bpo-26227: Fixed decoding of host names in socket.gethostbyaddr() and \ 
socket.gethostbyname_ex().
bpo-40432: Updated pegen regeneration script on Windows to find and use Python \ 
3.8 or higher. Prior to this, pegen regeneration already required 3.8 or higher, \ 
but the script may have used lower versions of Python.
bpo-43745: Actually updates Windows release to OpenSSL 1.1.1k. Earlier releases \ 
were mislabelled and actually included 1.1.1i again.
bpo-43492: Upgrade Windows installer to use SQLite 3.35.5.

macOS
bpo-42119: Fix check for macOS SDK paths when building Python. Narrow search to \ 
match contents of SDKs, namely only files in /System/Library, \ 
/System/IOSSupport, and /usr other than /usr/local. Previously, anything under \ 
/System was assumed to be in an SDK which causes problems with the new file \ 
system layout in 10.15+ where user file systems may appear to be mounted under \ 
/System. Paths in /Library were also incorrectly treated as SDK locations.
bpo-44009: Provide “python3.x-intel64” executable to allow reliably forcing \ 
macOS universal2 framework builds to run under Rosetta 2 Intel-64 emulation on \ 
Apple Silicon Macs. This can be useful for testing or when universal2 wheels are \ 
not yet available.
bpo-43492: Update macOS installer to use SQLite 3.35.4.

IDLE
bpo-43655: IDLE dialog windows are now recognized as dialogs by window managers \ 
on macOS and X Window.

Log message:
python39: updated to 3.9.4

Python 3.9.4

Core and Builtins
bpo-43710: Reverted the fix for https://bugs.python.org/issue42500 as it changed \ 
the PyThreadState struct size and broke the 3.9.x ABI in the 3.9.3 release \ 
(visible on 32-bit platforms using binaries compiled using an earlier version of \ 
Python 3.9.x headers).

Library
bpo-26053: Fixed bug where the pdb interactive run command echoed the args from \ 
the shell command line, even if those have been overridden at the pdb prompt.

Log message:
python39: updated to 3.9.3

Python 3.9.3 final

Security
bpo-42988: CVE-2021-3426: Remove the getfile feature of the pydoc module which \ 
could be abused to read arbitrary files on the disk (directory traversal \ 
vulnerability). Moreover, even source code of Python modules can contain \ 
sensitive data like passwords. Vulnerability reported by David Schwörer.
bpo-43285: ftplib no longer trusts the IP address value returned from the server \ 
in response to the PASV command by default. This prevents a malicious FTP server \ 
from using the response to probe IPv4 address and port combinations on the \ 
client network.

Code that requires the former vulnerable behavior may set a \ 
trust_server_pasv_ipv4_address attribute on their ftplib.FTP instances to True \ 
to re-enable it.
bpo-43439: Add audit hooks for gc.get_objects(), gc.get_referrers() and \ 
gc.get_referents(). Patch by Pablo Galindo.

Core and Builtins
bpo-43660: Fix crash that happens when replacing sys.stderr with a callable that \ 
can remove the object while an exception is being printed. Patch by Pablo \ 
Galindo.
bpo-43555: Report the column offset for SyntaxError for invalid line \ 
continuation characters. Patch by Pablo Galindo.
bpo-43517: Fix misdetection of circular imports when using from pkg.mod import \ 
attr, which caused false positives in non-trivial multi-threaded code.
bpo-35883: Python no longer fails at startup with a fatal error if a command \ 
line argument contains an invalid Unicode character. The Py_DecodeLocale() \ 
function now escapes byte sequences which would be decoded as Unicode characters \ 
outside the [U+0000; U+10ffff] range.
bpo-43406: Fix a possible race condition where PyErr_CheckSignals tries to \ 
execute a non-Python signal handler.
bpo-42500: Improve handling of exceptions near recursion limit. Converts a \ 
number of Fatal Errors in RecursionErrors.

Library
bpo-43433: xmlrpc.client.ServerProxy no longer ignores query and fragment in the \ 
URL of the server.
bpo-35930: Raising an exception raised in a “future” instance will create \ 
reference cycles.
bpo-43577: Fix deadlock when using ssl.SSLContext debug callback with \ 
ssl.SSLContext.sni_callback().
bpo-43521: ast.unparse can now render NaNs and empty sets.
bpo-43423: subprocess.communicate() no longer raises an IndexError when there is \ 
an empty stdout or stderr IO buffer during a timeout on Windows.
bpo-27820: Fixed long-standing bug of smtplib.SMTP where doing AUTH LOGIN with \ 
initial_response_ok=False will fail.

The cause is that SMTP.auth_login _always_ returns a password if provided with a \ 
challenge string, thus non-compliant with the standard for AUTH LOGIN.

Also fixes bug with the test for smtpd.
bpo-43332: Improves the networking efficiency of http.client when using a proxy \ 
via set_tunnel(). Fewer small send calls are made during connection setup.
bpo-43399: Fix ElementTree.extend not working on iterators when using the Python \ 
implementation
bpo-43316: The python -m gzip command line application now properly fails when \ 
detecting an unsupported extension. It exits with a non-zero exit code and \ 
prints an error message to stderr.
bpo-43260: Fix TextIOWrapper can not flush internal buffer forever after very \ 
large text is written.
bpo-42782: Fail fast in shutil.move() to avoid creating destination directories \ 
on failure.
bpo-37193: Fixed memory leak in socketserver.ThreadingMixIn introduced in Python 3.7.

Documentation
bpo-43199: Answer “Why is there no goto?” in the Design and History FAQ.
bpo-43407: Clarified that a result from time.monotonic(), time.perf_counter(), \ 
time.process_time(), or time.thread_time() can be compared with the result from \ 
any following call to the same function - not just the next immediate call.
bpo-27646: Clarify that ‘yield from <expr>’ works with any iterable, \ 
not just iterators.
bpo-36346: Update some deprecated unicode APIs which are documented as “will \ 
be removed in 4.0” to “3.12”. See PEP 623 for detail.

Tests
bpo-37945: Fix test_getsetlocale_issue1813() of test_locale: skip the test if \ 
setlocale() fails. Patch by Victor Stinner.
bpo-41561: Add workaround for Ubuntu’s custom OpenSSL security level policy.
bpo-43288: Fix test_importlib to correctly skip Unicode file tests if the \ 
fileystem does not support them.

Build
bpo-43631: Update macOS, Windows, and CI to OpenSSL 1.1.1k.
bpo-43617: Improve configure.ac: Check for presence of autoconf-archive package \ 
and remove our copies of M4 macros.

macOS
bpo-41837: Update macOS installer build to use OpenSSL 1.1.1j.

IDLE
bpo-42225: Document that IDLE can fail on Unix either from misconfigured IP \ 
masquerage rules or failure displaying complex colored (non-ascii) characters.
bpo-43283: Document why printing to IDLE’s Shell is often slower than printing \ 
to a system terminal and that it can be made faster by pre-formatting a single \ 
string before printing.

Log message:
python39 py39-html-docs: updated to 3.9.2

Python 3.9.2 final
Release date: 2021-02-19

Windows
bpo-43155: PyCMethod_New() is now present in python3.lib.
Python 3.9.2 release candidate 1
Release date: 2021-02-16

Security
bpo-42967: Fix web cache poisoning vulnerability by defaulting the query args \ 
separator to &, and allowing the user to choose a custom separator.
bpo-42938: Avoid static buffers when computing the repr of ctypes.c_double and \ 
ctypes.c_longdouble values.

Core and Builtins
bpo-42819: readline: Explicitly disable bracketed paste in the interactive \ 
interpreter, even if it’s set in the inputrc, is enabled by default (eg GNU \ 
Readline 8.1), or a user calls readline.read_init_file(). The Python REPL has \ 
not implemented bracketed paste support. Also, bracketed mode writes the \ 
"\x1b[?2004h" escape sequence into stdout which causes test failures \ 
in applications that don’t support it. It can still be explicitly enabled by \ 
calling readline.parse_and_bind("set enable-bracketed-paste on"). \ 
Patch by Dustin Rodrigues.
bpo-42806: Fix the column offsets for f-strings ast nodes surrounded by \ 
parentheses and for nodes that spawn multiple lines. Patch by Pablo Galindo.
bpo-40631: Fix regression where a single parenthesized starred expression was a \ 
valid assignment target.
bpo-32381: Fix encoding name when running a .pyc file on Windows: \ 
PyRun_SimpleFileExFlags() now uses the correct encoding to decode the filename.
bpo-42536: Several built-in and standard library types now ensure that their \ 
internal result tuples are always tracked by the garbage collector:

collections.OrderedDict.items()
dict.items()
enumerate()
functools.reduce()
itertools.combinations()
itertools.combinations_with_replacement()
itertools.permutations()
itertools.product()
itertools.zip_longest()
zip()
Previously, they could have become untracked by a prior garbage collection. \ 
Patch by Brandt Bucher.
bpo-42195: The __args__ of the parameterized generics for typing.Callable and \ 
collections.abc.Callable are now consistent. The __args__ for \ 
collections.abc.Callable are now flattened while typing.Callable’s have not \ 
changed. To allow this change, types.GenericAlias can now be subclassed and \ 
collections.abc.Callable’s __class_getitem__ will now return a subclass of \ 
types.GenericAlias. Tests for typing were also updated to not subclass things \ 
like Callable[..., T] as that is not a valid base class. Finally, both types no \ 
longer validate their argtypes, in Callable[[argtypes], resulttype] to prepare \ 
for PEP 612. Patch by Ken Jin.

Library
bpo-43102: The namedtuple __new__ method had its __builtins__ set to None \ 
instead of an actual dictionary. This created problems for introspection tools.
bpo-43108: Fixed a reference leak in the curses module. Patch by Pablo Galindo
bpo-42944: Fix random.Random.sample when counts argument is not None.
bpo-42931: Add randbytes() to random.__all__.
bpo-42780: Fix os.set_inheritable() for O_PATH file descriptors on Linux.
bpo-42851: remove __init_subclass__ support for Enum members
bpo-41748: Fix HTMLParser parsing rules for element attributes containing commas \ 
with spaces. Patch by Karl Dubost.
bpo-42759: Fixed equality comparison of tkinter.Variable and tkinter.font.Font. \ 
Objects which belong to different Tcl interpreters are now always different, \ 
even if they have the same name.
bpo-42756: Configure LMTP Unix-domain socket to use socket global default \ 
timeout when a timeout is not explicitly provided.
bpo-23328: Allow / character in username, password fields on _PROXY envars.
bpo-42655: subprocess extra_groups is now correctly passed into setgroups() \ 
system call.
bpo-42727: EnumMeta.__prepare__ now accepts **kwds to properly support \ 
__init_subclass__
bpo-42681: Fixed range checks for color and pair numbers in curses.
bpo-37961: Fix crash in tracemalloc.Traceback.__repr__() (regressed in Python 3.9).
bpo-42630: tkinter functions and constructors which need a default root window \ 
raise now RuntimeError with descriptive message instead of obscure \ 
AttributeError or NameError if it is not created yet or cannot be created \ 
automatically.
bpo-42644: logging.disable will now validate the types and value of its \ 
parameter. It also now accepts strings representing the levels (as does \ 
loging.setLevel) instead of only the numerical values.
bpo-36541: Fixed lib2to3.pgen2 to be able to parse PEP-570 positional only \ 
argument syntax.
bpo-42517: Enum: private names will raise a DeprecationWarning; in 3.10 they \ 
will become normal attributes
bpo-42678: Enum: call __init_subclass__ after members have been added
bpo-42532: Remove unexpected call of __bool__ when passing a spec_arg argument \ 
to a Mock.
bpo-42388: Fix subprocess.check_output(…, input=None) behavior when text=True \ 
to be consistent with that of the documentation and universal_newlines=True.
bpo-34463: Fixed discrepancy between traceback and the interpreter in formatting \ 
of SyntaxError with lineno not set (traceback was changed to match interpreter).
bpo-42375: subprocess module update for DragonFlyBSD support.
bpo-42384: Make pdb populate sys.path[0] exactly the same as regular python \ 
execution.
bpo-42383: Fix pdb: previously pdb would fail to restart the debugging target if \ 
it was specified using a relative path and the current directory changed.
bpo-42318: Fixed support of non-BMP characters in tkinter on macOS.
bpo-42163: Restore compatibility for uname_result around deepcopy and _replace.
bpo-39825: Windows: Change sysconfig.get_config_var('EXT_SUFFIX') to the \ 
expected full platform_tag.extension format. Previously it was hard-coded to \ 
.pyd, now it is compatible with distutils.sysconfig and will result in something \ 
like .cp38-win_amd64.pyd. This brings windows into conformance with the other \ 
platforms.
bpo-42059: typing.TypedDict types created using the alternative call-style \ 
syntax now correctly respect the total keyword argument when setting their \ 
__required_keys__ and __optional_keys__ class attributes.
bpo-39101: Fixed tests using IsolatedAsyncioTestCase from hanging on BaseExceptions.
bpo-42005: Fix CLI of cProfile and profile to catch BrokenPipeError.
bpo-41907: fix format() behavior for IntFlag
bpo-41889: Enum: fix regression involving inheriting a multiply-inherited enum
bpo-41891: Ensure asyncio.wait_for waits for task completion
bpo-41604: Don’t decrement the reference count of the previous user_ptr when \ 
set_panel_userptr fails.
bpo-40219: Lowered tkinter.ttk.LabeledScale dummy widget to prevent hiding part \ 
of the content label.
bpo-40084: Fix Enum.__dir__: dir(Enum.member) now includes attributes as well as \ 
methods.
bpo-39068: Fix initialization race condition in a85encode() and b85encode() in \ 
base64. Patch by Brandon Stansbury.
bpo-33289: Correct call to tkinter.colorchooser to return RGB triplet of ints \ 
instead of floats. Patch by Cheryl Sabella.

Documentation
bpo-40304: Fix doc for type(name, bases, dict). Patch by Boris Verkhovskiy and \ 
Éric Araujo.
bpo-42811: Updated importlib.utils.resolve_name() doc to use __spec__.parent \ 
instead of __package__. (Thanks Yair Frid.)
bpo-17140: Add documentation for the multiprocessing.pool.ThreadPool class.

Tests
bpo-42794: Update test_nntplib to use offical group name of news.aioe.org for \ 
testing. Patch by Dong-hee Na.
bpo-40810: In sqlite3, fix CheckTraceCallbackContent for SQLite pre 3.7.15.

Build
bpo-43174: Windows build now uses /utf-8 compiler option.
bpo-42692: Fix __builtin_available check on older compilers. Patch by Joshua Root.
bpo-42604: Now all platforms use a value for the “EXT_SUFFIX” build variable \ 
derived from SOABI (for instance in freeBSD, “EXT_SUFFIX” is now \ 
“.cpython-310d.so” instead of “.so”). Previosuly only Linux, Mac and \ 
VxWorks were using a value for “EXT_SUFFIX” that included “SOABI”.
bpo-42598: Fix implicit function declarations in configure which could have \ 
resulted in incorrect configuration checks. Patch contributed by Joshua Root.
bpo-29076: Add fish shell support to macOS installer.

Windows
bpo-41837: Updated Windows installer to include OpenSSL 1.1.1i
bpo-42584: Upgrade Windows installer to use SQLite 3.34.0.

macOS
bpo-42504: Ensure that the value of \ 
sysconfig.get_config_var(‘MACOSX_DEPLOYMENT_TARGET’) is always a string, \ 
even in when the value is parsable as an integer.
bpo-42361: Update macOS installer build to use Tcl/Tk 8.6.11 (rc2, expected to \ 
be final release).
bpo-41837: Update macOS installer build to use OpenSSL 1.1.1i.
bpo-42584: Update macOS installer to use SQLite 3.34.0.

IDLE
bpo-43008: Make IDLE invoke sys.excepthook() in normal, 2-process mode. Patch by \ 
Ken Hilton.
bpo-33065: Fix problem debugging user classes with __repr__ method.
bpo-23544: Disable Debug=>Stack Viewer when user code is running or Debugger \ 
is active, to prevent hang or crash. Patch by Zackery Spytz.
bpo-32631: Finish zzdummy example extension module: make menu entries work; add \ 
docstrings and tests with 100% coverage.

Tools/Demos
bpo-42726: Fixed Python 3 compatibility issue with gdb/libpython.py handling of \ 
attribute dictionaries.
bpo-42613: Fix freeze.py tool to use the prope config and library directories. \ 
Patch by Victor Stinner.

C API
bpo-43030: Fixed a compiler warning in Py_UNICODE_ISSPACE() on platforms with \ 
signed wchar_t.
bpo-42591: Export the Py_FrozenMain() function: fix a Python 3.9.0 regression. \ 
Python 3.9 uses -fvisibility=hidden and the function was not exported explicitly \ 
and so not exported.
bpo-40052: Fix an alignment build warning/error in function \ 
PyVectorcall_Function(). Patch by Andreas Schneider, Antoine Pitrou and Petr \ 
Viktorin.

Log message:
python39: updated to 3.9.1

Python 3.9.1 final

Core and Builtins

bpo-42576: types.GenericAlias will now raise a TypeError when attempting to \ 
initialize with a keyword argument. Previously, this would cause the interpreter \ 
to crash if the interpreter was compiled with debug symbols. This does not \ 
affect interpreters compiled for release. Patch by Ken Jin.

Library

bpo-5054: CGIHTTPRequestHandler.run_cgi() HTTP_ACCEPT improperly parsed. Replace \ 
the special purpose getallmatchingheaders with generic get_all method and add \ 
relevant tests.
bpo-17735: inspect.findsource() now raises OSError instead of IndexError when \ 
co_lineno of a code object is greater than the file length. This can happen, for \ 
example, when a file is edited after it was imported.
bpo-42116: Fix handling of trailing comments by inspect.getsource().
bpo-42487: ChainMap.__iter__ no longer calls __getitem__ on underlying maps
bpo-42482: TracebackException no longer holds a reference to the exception’s \ 
traceback object. Consequently, instances of TracebackException for equivalent \ 
but non-equal exceptions now compare as equal.
bpo-42406: We fixed an issue in pickle.whichmodule in which importing \ 
multiprocessing could change the how pickle identifies which module an object \ 
belongs to, potentially breaking the unpickling of those objects.
bpo-34215: Clarify the error message for asyncio.IncompleteReadError when \ 
expected is None.
bpo-12800: Extracting a symlink from a tarball should succeed and overwrite the \ 
symlink if it already exists. The fix is to remove the existing file or symlink \ 
before extraction. Based on patch by Chris AtLee, Jeffrey Kintscher, and Senthil \ 
Kumaran.

Tests

bpo-41473: Reenable test_gdb on gdb 9.2 and newer: \ 
https://bugzilla.redhat.com/show_bug.cgi?id=1866884 bug is fixed in gdb 10.1.
bpo-42553: Fix test_asyncio.test_call_later() race condition: don’t measure \ 
asyncio performance in the call_later() unit test. The test failed randomly on \ 
the CI.

macOS

bpo-41116: If no explicit macOS SDK was specified, setup.py should check for Tcl \ 
and TK frameworks in /Library/Frameworks; the previous commit inadvertently \ 
broke that test.
bpo-42504: Fix build on macOS Big Sur when MACOSX_DEPLOYMENT_TARGET=11

IDLE

bpo-42508: Keep IDLE running on macOS. Remove obsolete workaround that prevented \ 
running files with shortcuts when using new universal2 installers built on macOS \ 
11.

Log message:
python*: Revert shm_open workaround now it's fixed in mksandbox

Log message:
python*: Disable runtime configure test on sem_getvalue behaviour

Like the other test, because /dev/shm isn't available in the build
environment doesn't mean it won't be available on the destination
machine for the packages.

Log message:
python*: Avoid configure test for POSIX semaphores on Linux.

This attempts to build and run a program that uses POSIX semaphores.

This fails in a pbulk sandbox that doesn't contain /dev/shm, resulting
in a broken package where the idea that the platform doesn't support
POSIX semaphores is baked in forever. In newer Python versions,
this means Python doesn't even build properly.

XXX: We might want to avoid it on other platforms too...

Log message:
python39: Fix invalid ALTERNATIVES