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| Name: python313-nogil-idle | Distribution: openSUSE Tumbleweed |
| Version: 3.13.0 | Vendor: openSUSE |
| Release: 3.1 | Build date: Thu Oct 24 18:09:00 2024 |
| Group: Unspecified | Build host: reproducible |
| Size: 5589969 | Source RPM: python313-nogil-3.13.0-3.1.src.rpm |
| Packager: http://bugs.opensuse.org | |
| Url: https://www.python.org/ | |
| Summary: An Integrated Development Environment for Python | |
IDLE is a Tkinter based integrated development environment for Python. It features a multi-window text editor with multiple undo, Python colorizing, and many other things, as well as a Python shell window and a debugger.
Python-2.0
* Thu Oct 24 2024 Matej Cepl <mcepl@cepl.eu>
- Add CVE-2024-9287-venv_path_unquoted.patch to properly quote
path names provided when creating a virtual environment
(bsc#1232241, CVE-2024-9287)
* Wed Oct 16 2024 Matej Cepl <mcepl@cepl.eu>
- With python311-Sphinx we don't need no-skipif-doctests.patch
any more.
* Thu Oct 10 2024 Matej Cepl <mcepl@cepl.eu>
- Add warning about no-GIL builds being experimental.
* Tue Oct 08 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0:
Major new features of the 3.13 series, compared to 3.12
Some of the new major new features and changes in Python 3.13 are:
- New features
- A new and improved interactive interpreter, based on
PyPy's, featuring multi-line editing and color support, as
well as colorized exception tracebacks.
- An experimental free-threaded build mode, which disables
the Global Interpreter Lock, allowing threads to run
more concurrently. The build mode is available as an
experimental feature in the Windows and macOS installers as
well.
- A preliminary, experimental JIT, providing the ground work
for significant performance improvements.
- The locals() builtin function (and its C equivalent)
now has well-defined semantics when mutating the
returned mapping, which allows debuggers to operate more
consistently.
- A modified version of mimalloc is now included, optional
but enabled by default if supported by the platform, and
required for the free-threaded build mode.
- Docstrings now have their leading indentation stripped,
reducing memory use and the size of .pyc files. (Most tools
handling docstrings already strip leading indentation.)
- The dbm module has a new dbm.sqlite3 backend that is used
by default when creating new files.
- WASI is now a Tier 2 supported platform. Emscripten is
no longer an officially supported platform (but Pyodide
continues to support Emscripten).
- Typing
- Support for type defaults in type parameters.
- A new type narrowing annotation, typing.TypeIs.
- A new annotation for read-only items in TypeDicts.
- A new annotation for marking deprecations in the type
system.
- Removals and new deprecations
- PEP 594 (Removing dead batteries from the standard library)
scheduled removals of many deprecated modules: aifc,
audioop, chunk, cgi, cgitb, crypt, imghdr, mailcap, msilib,
nis, nntplib, ossaudiodev, pipes, sndhdr, spwd, sunau,
telnetlib, uu, xdrlib, lib2to3.
- Many other removals of deprecated classes, functions and
methods in various standard library modules.
- C API removals and deprecations. (Some removals present
in alpha 1 were reverted in alpha 2, as the removals were
deemed too disruptive at this time.)
- New deprecations, most of which are scheduled for removal
from Python 3.15 or 3.16.
- For more details on the changes to Python 3.13, see What's
new in Python 3.13 in the documentation.
* Tue Oct 01 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0~rc3:
- The most important change is rolling back the incremental
cyclic garbage collector (GC), which was added in one of
the alpha releases. The incremental GC had more significant
performance regressions in specific workloads than we
expected.
- Tests
- gh-124378: Updated test_ttk to pass with Tcl/Tk 8.6.15.
- Library
- gh-124538: Fixed crash when using gc.get_referents() on a
capsule object.
- gh-124498: Fix typing.TypeAliasType not to be generic, when
type_params is an empty tuple.
- gh-123017: Due to unreliable results on some devices,
time.strftime() no longer accepts negative years on
Android.
- gh-123014: os.pidfd_open() and signal.pidfd_send_signal()
are now unavailable when building against Android API
levels older than 31, since the underlying system calls may
cause a crash.
- gh-124248: Fixed potential crash when using struct to
process zero-width ‘Pascal string’ fields (0p).
- gh-87041: Fix a bug in argparse where lengthy subparser
argument help is incorrectly indented.
- gh-124212: Fix invalid variable in venv handling of failed
symlink on Windows
- gh-124171: Add workaround for broken fmod() implementations
on Windows, that loose zero sign (e.g. fmod(-10, 1) returns
0.0). Patch by Sergey B Kirpichev.
- gh-123934: Fix unittest.mock.MagicMock reseting magic
methods return values after .reset_mock(return_value=True)
was called.
- gh-123968: Fix the command-line interface for the random
module to select floats between 0 and N, not 1 and N.
- gh-123892: Add "_wmi" to sys.stdlib_module_names. Patch by
Victor Stinner.
- gh-123339: Fix inspect.getsource() for classes
in collections.abc and decimal (for pure Python
implementation) modules. inspect.getcomments() now raises
OSError instead of IndexError if the __firstlineno__ value
for a class is out of bound.
- gh-121735: When working with zip archives,
importlib.resources now properly honors module-adjacent
references (e.g. files(pkg.mod) and not just files(pkg)).
- gh-122145: Fix an issue when reporting tracebacks
corresponding to Python code emitting an empty AST
body. Patch by Nikita Sobolev and Bénédikt Tran.
- gh-119004: Fix a crash in OrderedDict.__eq__ when operands
are mutated during the check. Patch by Bénédikt Tran.
- bpo-44864: Do not translate user-provided strings in
argparse.ArgumentParser.
- IDLE
- gh-112938: Fix uninteruptable hang when Shell gets rapid
continuous output.
- gh-120104: Fix padding in config and search dialog windows
in IDLE.
- Documentation
- gh-124720: Update “Using Python on a Mac” section of the
“Python Setup and Usage” document and include information
on installing free-threading support.
- gh-116622: Add an Android platform guide, and flag modules
not available on Android.
- Core and Builtins
- gh-124567: Revert the incremental GC (in 3.13), since it’s
not clear the benefits outweigh the costs at this point.
- gh-124642: Fixed scalability issue in free-threaded builds
for lock-free reads from dictionaries in multi-threaded
scenarios
- gh-116510: Fix a bug that can cause a crash when
sub-interpreters use “basic” single-phase extension
modules. Shared objects could refer to PyGC_Head nodes that
had been freed as part of interpreter cleanup.
- gh-124547: When deallocating an object with inline values
whose __dict__ is still live: if memory allocation for the
inline values fails, clear the dictionary. Prevents an
interpreter crash.
- gh-124513: Fix a crash in FrameLocalsProxy constructor:
check the number of arguments. Patch by Victor Stinner.
- gh-124442: Fix nondeterminism in compilation by sorting the
value of __static_attributes__. Patch by kp2pml30.
- gh-123856: Fix PyREPL failure when a keyboard interrupt is
triggered after using a history search
- gh-65961: Document the deprecation of setting and using
__package__ and __cached__.
- gh-124027: Support <page up>, <page down>, and <delete>
keys in the Python REPL when $TERM is set to vt100.
- gh-77894: Fix possible crash in the garbage collector when
it tries to break a reference loop containing a memoryview
object. Now a memoryview object can only be cleared if
there are no buffers that refer it.
- gh-123339: Setting the __module__ attribute for a class now
removes the __firstlineno__ item from the type’s dict, so
they will no longer be inconsistent.
- C API
- gh-124160: Fix crash when importing modules containing
state and single-phase initialization in a subinterpreter.
- gh-123880: Fixed a bug that prevented circular imports of
extension modules that use single-phase initialization.
- Build
- gh-124487: Windows builds now use Windows 8.1 as their API
baseline (installation already required Windows 8.1).
- gh-124043: Building using --with-trace-refs is
(temporarily) disallowed when the GIL is disabled.
- Remove upstreamed patch:
- gh-124040-fix-test-math-i586.patch
- Drop .pyc files from docdir for reproducible builds (bsc#1230906).
* Thu Sep 12 2024 Daniel Garcia <daniel.garcia@suse.com>
- Make it build for SLE SP7 (jsc#PED-10075):
- Add CVE-2023-52425-libexpat-2.6.0-backport-15.6.patch to build in
SLE-15-SP7.
- Add fix-test-recursion-limit-15.6.patch, gh#python/cpython#115083
- Add gh-124040-fix-test-math-i586.patch, gh#python/cpython#124042
* Sat Sep 07 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0~rc2:
- Tools/Demos
- gh-123418: Update GitHub CI workflows to use OpenSSL 3.0.15
and multissltests to use 3.0.15, 3.1.7, and 3.2.3.
- Tests
- gh-119727: Add --single-process command line option to
Python test runner (regrtest). Patch by Victor Stinner.
- gh-101525: Skip test_gdb if the binary is relocated by
BOLT. Patch by Donghee Na.
- Security
- gh-123678: Upgrade libexpat to 2.6.3
- gh-121285: Remove backtracking from tarfile header parsing
for hdrcharset, PAX, and GNU sparse headers (bsc#1230227,
CVE-2024-6232).
- Library
- gh-123448: Fixed memory leak of typing.NoDefault by moving
it to the static types array.
- gh-123409: Fix ipaddress.IPv6Address.reverse_pointer output
according to RFC 3596, §2.5. Patch by Bénédikt Tran.
- gh-123270: Applied a more surgical fix for malformed
payloads in zipfile.Path causing infinite loops (gh-122905)
without breaking contents using legitimate characters
(bsc#1229704, CVE-2024-8088).
- gh-123228: Fix return type for
_pyrepl.readline._ReadlineWrapper.get_line_buffer() to be
str(). Patch by Sergey B Kirpichev.
- gh-123240: Raise audit events for the input() in the new
REPL.
- gh-123243: Fix memory leak in _decimal.
- gh-122546: Consistently use same file name for different
exceptions in the new repl. Patch by Sergey B Kirpichev.
- gh-123213: xml.etree.ElementTree.Element.extend() and
Element assignment no longer hide the internal exception if
an erronous generator is passed. Patch by Bar Harel.
- gh-85110: Preserve relative path in URL without netloc in
urllib.parse.urlunsplit() and urllib.parse.urlunparse().
- gh-123067: Fix quadratic complexity in parsing "-quoted
cookie values with backslashes by http.cookies
(bsc#1229596, CVE-2024-7592)
- gh-122981: Fix inspect.getsource() for generated classes
with Python base classes (e.g. enums).
- gh-122903: zipfile.Path.glob now correctly matches
directories instead of silently omitting them.
- gh-122905: zipfile.Path objects now sanitize names from the
zipfile.
- gh-122695: Fixed double-free when using gc.get_referents()
with a freed asyncio.Future iterator.
- gh-116263: logging.handlers.RotatingFileHandler no longer
rolls over empty log files.
- gh-105376: Restore the deprecated logging warn() method. It
was removed in Python 3.13 alpha 1. Keep the deprecated
warn() method in Python 3.13. Patch by Victor Stinner.
- gh-122744: Bump the version of pip bundled in ensurepip to
version 24.2.
- gh-118814: Fix the typing.TypeVar constructor when name is
passed by keyword.
- gh-122478: Remove internal frames from tracebacks
shown in code.InteractiveInterpreter with non-default
sys.excepthook(). Save correct tracebacks in
sys.last_traceback and update __traceback__ attribute of
sys.last_value and sys.last_exc.
- gh-116622: On Android, the FICLONE and FICLONERANGE
constants are no longer exposed by fcntl, as these ioctls
are blocked by SELinux.
- gh-82378: Make sure that the new REPL interprets
sys.tracebacklimit in the same way that the classic REPL
did.
- gh-122334: Fix crash when importing ssl after the main
interpreter restarts.
- gh-87320: In code.InteractiveInterpreter, handle exceptions
caused by calling a non-default sys.excepthook(). Before,
the exception bubbled up to the caller, ending the REPL.
- gh-121650: email headers with embedded newlines
are now quoted on output. The generator will
now refuse to serialize (write) headers
that are unsafely folded or delimited; see
verify_generated_headers. (Contributed by Bas Bloemsaat and
Petr Viktorin in gh-121650.; CVE-2024-6923, bsc#1228780)
- gh-121723: Make logging.config.dictConfig() accept any
object implementing the Queue public API. See the queue
configuration section for details. Patch by Bénédikt Tran.
- gh-122081: Fix a crash in the decimal.IEEEContext()
optional function available via the EXTRA_FUNCTIONALITY
configuration flag.
- gh-121804: Correctly show error locations, when SyntaxError
raised in new repl. Patch by Sergey B Kirpichev.
- gh-121151: Fix wrapping of long usage text of arguments
inside a mutually exclusive group in argparse.
- gh-108172: webbrowser honors OS preferred browser on Linux
when its desktop entry name contains the text of a known
browser name.
- gh-109109: You can now get the raw TLS .
Cocertificate chains from TLS connections .
Covia ssl.SSLSocket.get_verified_chain() and .
Cossl.SSLSocket.get_unverified_chain() methods ntributed by .
CoMateusz Nowak .
- IDLE
- gh-120083: Add explicit black IDLE Hovertip foreground
color needed for recent macOS. Fixes Sonoma showing
unreadable white on pale yellow. Patch by John Riggles.
- Core and Builtins
- gh-123572: Fix key mappings for various F-keys in Windows
for the new REPL. Patch by devdanzin
- gh-123484: Fix _Py_DebugOffsets for long objects to be
relative to the start of the object rather than the start
of a subobject.
- gh-123344: Add AST optimizations for type parameter
defaults.
- gh-123321: Prevent Parser/myreadline race condition from
segfaulting on multi-threaded use. Patch by Bar Harel and
Amit Wienner.
- gh-123177: Fix a bug causing stray prompts to appear in the
middle of wrapped lines in the new REPL.
- gh-122982: Extend the deprecation period for bool inversion
(~) by two years.
- gh-123177: Deactivate line wrap in the Apple Terminal via a
ANSI escape code. Patch by Pablo Galindo
- gh-123229: Fix valgrind warning by initializing the
f-string buffers to 0 in the tokenizer. Patch by Pablo
Galindo
- gh-122298: Restore printout of GC stats when
gc.set_debug(gc.DEBUG_STATS) is called. This featue was
accidentally removed when implementing incremental GC.
- gh-121804: Correctly show error locations when a
SyntaxError is raised in the basic REPL. Patch by Sergey B
Kirpichev.
- gh-123142: Fix too-wide source location in exception
tracebacks coming from broken iterables in comprehensions.
- gh-123048: Fix a bug where pattern matching code could emit
a JUMP_FORWARD with no source location.
- gh-123123: Fix displaying SyntaxError exceptions covering
multiple lines. Patch by Pablo Galindo
- gh-123083: Fix a potential use-after-free in
STORE_ATTR_WITH_HINT.
- gh-123022: Fix crash in free-threaded build when calling
Py_Initialize() from a non-main thread.
- gh-122888: Fix crash on certain calls to str() with
positional arguments of the wrong type. Patch by Jelle
Zijlstra.
- gh-116622: Fix Android stdout and stderr messages being
truncated or lost.
- gh-122527: Fix a crash that occurred when a
PyStructSequence was deallocated after its type’s
dictionary was cleared by the GC. The type’s tp_basicsize
now accounts for non-sequence fields that aren’t included
in the Py_SIZE of the sequence.
- gh-122445: Add only fields which are modified via self.* to
__static_attributes__.
- gh-98442: Fix too wide source locations of the cleanup
instructions of a with statement.
- gh-93691: Fix source locations of instructions generated
for with statements.
- gh-120097: FrameLocalsProxy now subclasses
collections.abc.Mapping and can be matched as a mapping in
match statements
- C API
- gh-122728: Fix PyEval_GetLocals() to avoid SystemError
(“bad argument to internal function”). Patch by Victor
Stinner.
- Build
- gh-123297: Propagate the value of LDFLAGS to LDCXXSHARED in
sysconfig. Patch by Pablo Galindo
- gh-116622: Rename build variable MODULE_LDFLAGS back
to LIBPYTHON, as it’s used by package build systems
(e.g. Meson).
- gh-118943: Fix an issue where the experimental JIT could be
built several times by the make regen-all target, leading
to possible race conditions on heavily parallelized builds.
- gh-118943: Fix a possible race condition affecting parallel
builds configured with --enable-experimental-jit, in which
FileNotFoundError could be caused by another process
already moving jit_stencils.h.new to jit_stencils.h.
- Remove upstreamed patches:
- bso1227999-reproducible-builds.patch
- CVE-2024-8088-inf-loop-zipfile_Path.patch
- gh120226-fix-sendfile-test-kernel-610.patch
- gh122136-test_asyncio-kernel-buffer-data.patch
- fix_configure_rst.patch
- CVE-2024-6923-email-hdr-inject.patch
* Mon Sep 02 2024 Matej Cepl <mcepl@cepl.eu>
- Add gh120226-fix-sendfile-test-kernel-610.patch to avoid
failing test_sendfile_close_peer_in_the_middle_of_receiving
tests on Linux >= 6.10 (GH-120227).
* Thu Aug 29 2024 Matej Cepl <mcepl@cepl.eu>
- Add gh122136-test_asyncio-kernel-buffer-data.patch fixing
gh#python/cpython#122136 (changes in kernel provide different
amount of data in the socket buffers).
- Remove skip_test_abort_clients.patch, which is not needed any
more.
* Wed Aug 28 2024 Matej Cepl <mcepl@cepl.eu>
- Add CVE-2024-8088-inf-loop-zipfile_Path.patch to prevent
malformed payload to cause infinite loops in zipfile.Path
(bsc#1229704, CVE-2024-8088).
* Thu Aug 08 2024 Andreas Schwab <schwab@suse.de>
- Update list of skipped tests in qemu linux-user emulation
* Wed Aug 07 2024 Matej Cepl <mcepl@cepl.eu>
- Add CVE-2024-6923-email-hdr-inject.patch to prevent email
header injection due to unquoted newlines (bsc#1228780,
CVE-2024-6923).
- Adding bso1227999-reproducible-builds.patch fixing bsc#1227999
adding reproducibility patches from gh#python/cpython!121872
and gh#python/cpython!121883.
- Add skip_test_abort_clients.patch (gh#python/cpython#122136)
skip not yet fixed failing test
- %{profileopt} variable is set according to the variable
%{do_profiling} (bsc#1227999)
- Update bluez-devel-vendor.tar.xz
* Thu Aug 01 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0~rc1:
- Tests
- gh-59022: Add tests for pkgutil.extend_path(). Patch by
Andreas Stocker.
- gh-99242: os.getloadavg() may throw OSError when
running regression tests under certain conditions (e.g.
chroot). This error is now caught and ignored, since
reporting load average is optional.
- Security
- gh-122133: Authenticate the socket connection for the
socket.socketpair() fallback on platforms where AF_UNIX is
not available like Windows.
- Patch by Gregory P. Smith <greg@krypto.org> and Seth Larson
<seth@python.org>. Reported by Ellie <el@horse64.org>
- gh-121957: Fixed missing audit events around interactive
use of Python, now also properly firing for python -i, as
well as for python -m asyncio. The events in question are
cpython.run_stdin and cpython.run_startup.
- Library
- gh-122400: Handle ValueErrors raised by os.stat() in
filecmp.dircmp and filecmp.cmpfiles(). Patch by Bénédikt
Tran.
- gh-122311: Fix some error messages in pickle.
- gh-122332: Fixed segfault with asyncio.Task.get_coro() when
using an eager task factory.
- gh-105733: ctypes.ARRAY() is now soft deprecated: it no
longer emits deprecation warnings and is not scheduled for
removal.
- gh-122087: Restore inspect.ismethoddescriptor() and
inspect.isroutine() returning False for functools.partial
objects.
- gh-122170: Handle ValueErrors raised by os.stat() in
linecache. Patch by Bénédikt Tran.
- gh-82951: Serializing objects with complex __qualname__
(such as unbound methods and nested classes) by name no
longer involves serializing parent objects by value in
pickle protocols < 4.
- gh-113785: csv now correctly parses numeric fields (when
used with csv.QUOTE_NONNUMERIC or csv.QUOTE_STRINGS) which
start with an escape character.
- gh-122088: @warnings.deprecated now copies the
coroutine status of functions and methods so that
inspect.iscoroutinefunction() returns the correct result.
- gh-120930: Fixed a bug introduced by gh-92081 that added an
incorrect extra blank to encoded words occurring in wrapped
headers.
- gh-121474: Fix missing sanity check for parties arg in
threading.Barrier constructor. Patch by Clinton Christian
(pygeek).
- gh-120289: Fixed the use-after-free issue in cProfile by
disallowing disable() and clear() in external timers.
- IDLE
- gh-122482: Change About IDLE to direct users to
discuss.python.org instead of the now unused idle-dev email
and mailing list.
- Core and Builtins
- gh-116090: Fix an issue in JIT builds that prevented some
for loops from correctly firing RAISE monitoring events.
- gh-122208: Dictionary watchers now only deliver the
PyDict_EVENT_ADDED event when the insertion is in a known
good state to succeed.
- gh-122300: Preserve AST nodes for f-string with
single-element format specifiers. Patch by Pablo Galindo
- gh-122029: Emit c_call events in sys.setprofile() when a
PyMethodObject pointing to a PyCFunction is called.
- gh-122026: Fix a bug that caused the tokenizer to not
correctly identify mismatched parentheses inside f-strings
in some situations. Patch by Pablo Galindo
- gh-118934: Make PyEval_GetLocals return borrowed reference
- C API
- gh-116622: Make PyObject_Print work around a bug in Android
and OpenBSD which prevented it from throwing an exception
when trying to write to a read-only stream.
- gh-121489: Export private _PyBytes_Join() again.
- Build
- gh-120522: Added a --with-app-store-compliance option to
patch out known issues with macOS/iOS App Store review
processes.
* Wed Jul 24 2024 Daniel Garcia <daniel.garcia@suse.com>
- Update F00251-change-user-install-location.patch to install packages
in /usr/local by default when using pip outside of a RPMBUILD
environment.
* Mon Jul 22 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0~b4:
- Tests
- gh-121084: Fix test_typing random leaks. Clear typing ABC
caches when running tests for refleaks (-R option): call
_abc_caches_clear() on typing abstract classes and their
subclasses.
- gh-121160: Add a test for
readline.set_history_length(). Note that this test may fail
on readline libraries.
- gh-121200: Fix test_expanduser_pwd2() of
test_posixpath. Call getpwnam() to get pw_dir, since it
can be different than getpwall() pw_dir.
- gh-121188: When creating the JUnit XML file, regrtest
now escapes characters which are invalid in XML, such
as the chr(27) control character used in ANSI escape
sequences.
- Library
- gh-57141: The shallow argument to filecmp.dircmp (new in
Python 3.13) is now keyword-only.
- gh-121245: Simplify handling of the history file in
site.register_readline() helper. The CAN_USE_PYREPL
variable now will be initialized, when imported.
- gh-121332: Fix constructor of ast nodes with custom
_attributes. Previously, passing custom attributes would
raise a DeprecationWarning. Passing arguments to the
constructor that are not in _fields or _attributes remains
deprecated.
- gh-121279: Avoid NameError for the warnings module when
accessing the depracated atributes of the importlib.abc
module.
- gh-121245: Fix a bug in the handling of the command history
of the new REPL that caused the history file to be wiped at
REPL exit.
- gh-87744: Fix waitpid race while calling send_signal() in
asyncio.
- gh-121018: Fixed other issues where argparse.ArgumentParser
did not honor exit_on_error=False.
- gh-120678: Fix regression in the new REPL that meant that
globals from files passed using the -i argument would not
be included in the REPL’s global namespace.
- gh-120782: Fix wrong references of the datetime types after
reloading the module.
- gh-120713: datetime.datetime.strftime() now 0-pads years
with less than four digits for the format specifiers %Y and
%G on Linux.
- gh-117983: Defer the threading import in importlib.util
until lazy loading is used.
- gh-119189: When using the ** operator or pow() with
Fraction as the base and an exponent that is not rational,
a float, or a complex, the fraction is no longer converted
to a float.
- gh-118714: Allow restart in post-mortem debugging of
pdb. Removed restart message when the user quits pdb from
post-mortem mode.
- gh-105623: Fix performance degradation in
logging.handlers.RotatingFileHandler.
- IDLE
- gh-78889: Stop Shell freezes by blocking user access to
non-method sys.stdout.shell attributes, which are all
private.
- Documentation
- gh-121749: Fix documentation for PyModule_AddObjectRef().
- gh-120012: Clarify the behaviours of
multiprocessing.Queue.empty() and
multiprocessing.SimpleQueue.empty() on closed queues.
- Core and Builtins
- gh-121860: Fix crash when rematerializing a managed
dictionary after it was deleted.
- gh-121814: Fixed the SegFault when PyEval_SetTrace() is
used with no Python frame on stack.
- gh-121295: Fix PyREPL console getting into a blocked state
after interrupting a long paste
- gh-121794: Fix bug in free-threaded Python where a
resurrected object could lead to a negative ref count
assertion failure.
- gh-121657: Improve the SyntaxError message if the user
tries to use yield from outside a function.
- gh-121609: Fix pasting of characters containing unicode
character joiners in the new REPL. Patch by Marta Gomez
Macias
- gh-117482: Unexpected slot wrappers are no longer created
for builtin static types in subinterpreters.
- gh-121499: Fix a bug affecting how multi-line history was
being rendered in the new REPL after interacting with the
new screen cache. Patch by Pablo Galindo
- gh-121497: Fix a bug that was preventing the REPL to
correctly respect the history when an input hook was
set. Patch by Pablo Galindo
- gh-121012: Tier 2 execution now ensures that list iterators
remain exhausted, once they become exhausted.
- gh-121439: Allow tuples of length 20 in the freelist to be
reused.
- gh-121368: Fix race condition in _PyType_Lookup in the
free-threaded build due to a missing memory fence. This
could lead to _PyType_Lookup returning incorrect results on
arm64.
- gh-121130: Fix f-strings with debug expressions in format
specifiers. Patch by Pablo Galindo
- gh-121115: PyLong_AsNativeBytes() no longer
uses __index__() methods by default. The
Py_ASNATIVEBYTES_ALLOW_INDEX flag has been added to allow
it.
- C API
- gh-89364: Export the PySignal_SetWakeupFd()
function. Previously, the function was documented but
it couldn’t be used in 3rd party code. Patch by Victor
Stinner.
- gh-113993: PyUnicode_InternInPlace() no longer
Seprevents its argument from being garbage collected
Several functions that take char * are now documented
Seas possibly preventing string objects from being
Segarbage collected; refer to their documentation
Sefor details: PyUnicode_InternFromString(),
SePyDict_SetItemString(), PyObject_SetAttrString(),
SePyObject_DelAttrString(), PyUnicode_InternFromString(),
Seand PyModule_Add* convenience functions
- gh-113601: Removed debug build assertions related to
interning strings, which were falsely triggered by stable
ABI extensions.
- gh-112136: Restore the private _PyArg_Parser structure and
the private _PyArg_ParseTupleAndKeywordsFast() function,
previously removed in Python 3.13 alpha 1. Patch by Victor
Stinner.
- Build
- gh-120371: Support WASI SDK 22 by explicitly skipping
functions that are just stubs in wasi-libc.
- gh-121731: Fix mimalloc compile error on GNU/Hurd
- gh-121487: Fix deprecation warning for ATOMIC_VAR_INIT in
mimalloc.
- gh-121467: Fix a Makefile bug that prevented mimalloc
header files from being installed.
- gh-121103: On POSIX systems, excluding macOS framework
installs, the lib directory for the free-threaded build now
includes a “t” suffix to avoid conflicts with a co-located
default build installation.
- gh-120831: The default minimum iOS version was increased to
13.0.
- gh-113565: Improve curses and curses.panel dependency
checks in configure.
- Remove %suse_update_desktop_file macro as it is not useful any
more.
- Update bluez-devel-vendor.tar.xz vendored files.
* Thu Jul 04 2024 Matej Cepl <mcepl@cepl.eu>
- Stop using %%defattr, it seems to be breaking proper executable
attributes on /usr/bin/ scripts (bsc#1227378).
* Sun Jun 30 2024 Dirk Müller <dmueller@suse.com>
- move pathlib to -base
- move _pyrepl to -base (used by pydoc which is in base)
- fix import-mapping
* Fri Jun 28 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0~b2:
* Core and Builtins
- gh-119462: Make sure that invariants of type versioning are
maintained:
* Superclasses always have their version number assigned
before subclasses
* The version tag is always zero if the tag is not valid.
* The version tag is always non-zero if the tag is valid.
- gh-120437: Fix _CHECK_STACK_SPACE optimization problems
introduced in gh-118322.
- gh-120722: Correctly set the bytecode position on return
instructions within lambdas. Patch by Jelle Zijlstra.
- gh-120367: Fix bug where compiler creates a redundant
jump during pseudo-op replacement. Can only happen with
a synthetic AST that has a try on the same line as the
instruction following the exception handler.
- gh-113993: Strings interned with sys.intern() are again
garbage-collected when no longer used, as per the
documentation. Strings interned with the C function
PyUnicode_InternInPlace() are still immortal. Internals of
the string interning mechanism have been changed. This may
affect performance and identities of str objects.
- gh-120384: Fix an array out of bounds crash in
list_ass_subscript, which could be invoked via some
specificly tailored input: including concurrent
modification of a list object, where one thread assigns a
slice and another clears it.
- gh-120367: Fix crash in compiler on code with redundant
NOPs and JUMPs which show up after exception handlers are
moved to the end of the code.
- gh-120400: Support Linux perf profiler to see Python calls
on RISC-V architecture.
- gh-120221: Deliver real signals on Ctrl-C and Ctrl-Z in the
new REPL. Patch by Pablo Galindo
- gh-120346: Respect PYTHON_BASIC_REPL when running in
interative inspect mode (python -i). Patch by Pablo Galindo
- gh-93691: Fix source locations of instructions generated
for the iterator of a for statement.
- gh-120198: Fix a crash when multiple threads read and write
to the same __class__ of an object concurrently.
- gh-120298: Fix use-after free in list_richcompare_impl
which can be invoked via some specificly tailored evil
input.
- gh-119666: Fix a compiler crash in the case where two
comprehensions in class scope both reference __class__.
- gh-120225: Fix crash in compiler on empty block at end of
exception handler.
- gh-119933: Improve SyntaxError messages for invalid
expressions in a type parameters bound, a type parameter
constraint tuple or a default type parameter. Patch by
Bénédikt Tran
- bpo-24766: Fix handling of doc argument to subclasses of
property
* Library
- gh-119614: Fix truncation of strings with embedded null
characters in some internal operations in tkinter.
- gh-120910: When reading installed files from an egg, use
relative_to(walk_up=True) to honor files installed outside
of the installation root.
- gh-101830: Accessing the tkinter object’s string
representation no longer converts the underlying Tcl object
to a string on Windows.
- gh-120811: Fix possible memory leak in
contextvars.Context.run().
- gh-120769: Make empty line in pdb repeats the last command
even when the command is from cmdqueue.
- gh-120732: Fix name passing to unittest.mock.Mock object
when using unittest.mock.create_autospec().
- gh-120683: Fix an error in logging.LogRecord, when the
integer part of the timestamp is rounded up, while the
millisecond calculation truncates, causing the log
timestamp to be wrong by up to 999 ms (affected roughly 1
in 8 million timestamps).
- gh-120633: Move scrollbar and remove tear-off menus in
turtledemo.
- gh-120541: Improve the prompt in the “less” pager when
help() is called with non-string argument.
- gh-120495: Fix incorrect exception handling in Tab
Nanny. Patch by Wulian233.
- gh-120381: Correct inspect.ismethoddescriptor() to
check also for the lack of __delete__(). Patch by Jan
Kaliszewski.
- gh-90425: The OS byte in gzip headers is now always set to
255 when using gzip.compress().
- gh-120343: Fix column offset reporting for tokens that come
after multiline f-strings in the tokenize module.
- gh-119600: Fix unittest.mock.patch() to not read attributes
of the target when new_callable is set. Patch by Robert
Collins.
- gh-114053: Fix erroneous NameError when calling
inspect.get_annotations() with eval_str=True` on a class
that made use of PEP 695 type parameters in a module that
had from __future__ import annotations at the top of the
file. Patch by Alex Waygood.
- gh-120268: Prohibit passing None to pure-Python
datetime.date.fromtimestamp() to achieve consistency with
C-extension implementation.
- gh-120244: Fix memory leak in re.sub() when the replacement
string contains backreferences.
- gh-120211: Fix tkinter.ttk with Tcl/Tk 9.0.
- gh-71587: Fix crash in C version of
datetime.datetime.strptime() when called again on the
restarted interpreter.
- gh-120161: datetime no longer crashes in certain complex
reference cycle situations.
- gh-119698: Fix symtable.Class.get_methods() and document
its behaviour. Patch by Bénédikt Tran.
- gh-120121: Add concurrent.futures.InvalidStateError to
module’s __all__.
- gh-119933: Add the symtable.SymbolTableType
enumeration to represent the possible outputs of the
symtable.SymbolTable.get_type method. Patch by Bénédikt
Tran.
- gh-120108: Fix calling copy.deepcopy() on ast trees
that have been modified to have references to parent
nodes. Patch by Jelle Zijlstra.
- gh-112672: Support building tkinter with Tcl 9.0.
- gh-65454: unittest.mock.Mock.attach_mock() no longer
triggers a call to a PropertyMock being attached.
- gh-81936: help() and showtopic() methods now respect a
configured output argument to pydoc.Helper and not use the
pager in such cases. Patch by Enrico Tröger.
- gh-119577: The DeprecationWarning emitted when testing
the truth value of an xml.etree.ElementTree.Element now
describes unconditionally returning True in a future
version rather than raising an exception in Python 3.14.
- gh-118908: Limit exposed globals from internal imports and
definitions on new REPL startup. Patch by Eugene Triguba
and Pablo Galindo.
- gh-119506: Fix io.TextIOWrapper.write() method breaks
internal buffer when the method is called again during
flushing internal buffer.
* Build
- gh-120671: Fix failing configure tests due to a missing
space when appending to CFLAGS.
- gh-120602: Correctly handle LLVM installs
with LLVM_VERSION_SUFFIX when building with
- -enable-experimental-jit.
- gh-120326: On Windows, fix build error when --disable-gil
and --experimental-jit options are combined.
- gh-120291: Make the python-config shell script compatible
with non-bash shells.
* C API
- gh-120858: PyDict_Next() no longer locks the dictionary in
the free-threaded build. The locking needs to be done by
the caller around the entire iteration loop.
- gh-119344: The critical section API is now public as part
of the non-limited C API.
- gh-118789: Add
PyUnstable_Object_ClearWeakRefsNoCallbacks(), which clears
weakrefs without calling their callbacks.
- gh-117511: Make the PyMutex public in the non-limited C
API.
- Readjust patches:
- F00251-change-user-install-location.patch
- bpo-31046_ensurepip_honours_prefix.patch
- fix_configure_rst.patch
- python-3.3.0b1-fix_date_time_compiler.patch
- subprocess-raise-timeout.patch
* Thu Jun 06 2024 Daniel Garcia <daniel.garcia@suse.com>
- Build experimental package python313-base-nogil with
- -disable-gil option.
* Thu Jun 06 2024 Daniel Garcia <daniel.garcia@suse.com>
- Fix doc package build
gh#python/cpython#120150
* Thu Jun 06 2024 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.13.0b2:
- Security
- gh-118773: Fixes creation of ACLs in os.mkdir() on Windows to
work correctly on non-English machines.
- gh-118486: os.mkdir() on Windows now accepts mode of 0o700 to
restrict the new directory to the current user. This fixes
CVE-2024-4030 affecting tempfile.mkdtemp() in scenarios where
the base temporary directory is more permissive than the
default.
- Core and Builtins
- gh-119724: Reverted improvements to error messages for elif/else
statements not matching any valid statements, which made in hard
to locate the syntax errors inside those elif/else blocks.
- gh-119842: Honor PyOS_InputHook() in the new REPL. Patch by
Pablo Galindo
- gh-119821: Fix execution of annotation scopes within classes
when globals is set to a non-dict. Patch by Jelle Zijlstra.
- gh-119548: Add a clear command to the REPL. Patch by Pablo
Galindo
- gh-111999: Fix the signature of str.format_map().
- gh-119560: An invalid assert in beta 1 has been removed. The
assert would fail if PyState_FindModule() was used in an
extension module’s init function before the module def had been
initialized.
- gh-119369: Fix deadlock during thread deletion in free-threaded
build, which could occur when the GIL was enabled at runtime.
- gh-119525: Fix deadlock involving _PyType_Lookup() cache in the
free-threaded build when the GIL is dynamically enabled at
runtime.
- gh-119311: Fix bug where names are unexpectedly mangled in the
bases of generic classes.
- gh-119395: Fix bug where names appearing after a generic class
are mangled as if they are in the generic class.
- gh-119213: Non-builtin modules built with argument clinic were
crashing if used in a subinterpreter before the main
interpreter. The objects that were causing the problem by
leaking between interpreters carelessly have been fixed.
- gh-119011: Fixes type.__type_params__ to return an empty tuple
instead of a descriptor.
- gh-118692: Avoid creating unnecessary StopIteration instances
for monitoring.
- gh-119049: Fix displaying the source line for warnings created
by the C API if the warnings module had not yet been imported.
- gh-118844: Fix build failures when configuring with both
- -disable-gil and --enable-experimental-jit.
- gh-118921: Add copy() method for FrameLocalsProxy which returns
a snapshot dict for local variables.
- gh-117657: Fix data races on the field that stores a pointer to
the interpreter’s main thread that occur in free-threaded
builds.
- gh-118507: Speedup os.path.isjunction() and os.path.lexists() on
Windows with a native implementation.
- gh-118561: Fix race condition in free-threaded build where
list.extend() could expose uninitialised memory to concurrent
readers.
- gh-118263: Speed up os.path.splitroot() & os.path.normpath()
with a direct C call.
- gh-117195: Avoid assertion failure for debug builds when calling
object.__sizeof__(1)
- Library
- gh-119819: Fix regression to allow logging configuration with
multiprocessing queue types.
- gh-117142: The ctypes module may now be imported in all
subinterpreters, including those that have their own GIL.
- gh-118835: Fix _pyrepl crash when using custom prompt with ANSI
escape codes.
- gh-117398: The _datetime module (C implementation for datetime)
now supports being imported in multiple interpreters.
- gh-89727: Fix issue with shutil.rmtree() where a RecursionError
is raised on deep directory trees.
- gh-89727: Partially fix issue with shutil.rmtree() where a
RecursionError is raised on deep directory trees. A recursion
error is no longer raised when rmtree.avoids_symlink_attacks is
false.
- gh-119118: Fix performance regression in the tokenize module by
caching the line token attribute and calculating the column
offset more efficiently.
- gh-89727: Fix issue with os.fwalk() where a RecursionError was
raised on deep directory trees by adjusting the implementation
to be iterative instead of recursive.
- gh-119588: zipfile.Path.is_symlink now assesses if the given
path is a symlink.
- gh-119555: Catch SyntaxError from compile() in the runsource()
method of the InteractiveColoredConsole. Patch by Sergey B
Kirpichev.
- gh-113892: Now, the method sock_connect of
asyncio.ProactorEventLoop raises a ValueError if given socket is
not in non-blocking mode, as well as in other loop
implementations.
- gh-119443: The interactive REPL no longer runs with from
__future__ import annotations enabled. Patch by Jelle Zijlstra.
- gh-117398: Objects in the datetime C-API are now all statically
allocated, which means better memory safety, especially when the
module is reloaded. This should be transparent to users.
- gh-118894: asyncio REPL now has the same capabilities as PyREPL.
- gh-118911: In PyREPL, updated maybe-accept’s logic so that if
the user hits Enter twice, they are able to terminate the block
even if there’s trailing whitespace. Also, now when the user
hits arrow up, the cursor is on the last functional line. This
matches IPython’s behavior. Patch by Aya Elsayed.
- gh-111201: Remove dependency to readline from the new Python
REPL.
- gh-119174: Fix high DPI causes turtledemo(turtle-graphics
examples) windows blurry Patch by Wulian233 and Terry Jan Reedy
- gh-119121: Fix a NameError happening in
asyncio.staggered.staggered_race. This function is now tested.
- gh-119113: Fix issue where pathlib.PurePath.with_suffix() didn’t
raise TypeError when given None as a suffix.
- gh-118643: Fix an AttributeError in the email module when
re-fold a long address list. Also fix more cases of incorrect
encoding of the address separator in the address list.
- gh-58933: Make pdb return to caller frame correctly when f_trace
of the caller frame is not set
- gh-118895: Setting attributes on typing.NoDefault now raises
AttributeError instead of TypeError.
- gh-118868: Fixed issue where kwargs were no longer passed to the
logging handler QueueHandler
- gh-118851: ctx arguments to the constructors of ast node classes
now default to ast.Load(). Patch by Jelle Zijlstra.
- gh-118760: Restore the default value of tkiter.wantobjects to 1.
- gh-118760: Fix errors in calling Tkinter bindings on Windows.
- gh-118772: Allow typing.TypeVar instances without a default to
follow instances without a default in some cases. Patch by Jelle
Zijlstra.
- gh-110863: os.path.realpath() now suppresses any OSError from
os.readlink() when strict mode is disabled (the default).
- gh-118033: Fix dataclasses.dataclass() not creating a
__weakref__ slot when subclassing typing.Generic.
- gh-106531: In importlib.resources, sync with importlib_resources
6.3.2, including: MultiplexedPath now expects Traversable paths,
deprecating string arguments to MultiplexedPath; Enabled support
for resources in namespace packages in zip files; Fixed
NotADirectoryError when calling files on a subdirectory of a
namespace package.
- gh-113978: Ignore warnings on text completion inside REPL.
- gh-103956: Fix lack of newline characters in trace module output
when line tracing is enabled but source code line for current
frame is not available.
- gh-92081: Fix missing spaces in email headers when the spaces
are mixed with encoded 8-bit characters.
- gh-103194: Prepare Tkinter for C API changes in Tcl 8.7/9.0 to
avoid _tkinter.Tcl_Obj being unexpectedly returned instead of
bool, str, bytearray, or int.
- gh-87106: Fixed handling in inspect.Signature.bind() of keyword
arguments having the same name as positional-only arguments when
a variadic keyword argument (e.g. **kwargs) is present.
- bpo-45767: Fix integer conversion in os.major(), os.minor(), and
os.makedev(). Support device numbers larger than 2**63-1.
Support non-existent device number (NODEV).
- gh-67693: Fix urllib.parse.urlunparse() and
urllib.parse.urlunsplit() for URIs with path starting with
multiple slashes and no authority. Based on patch by Ashwin
Ramaswami.
- Tests
- gh-119050: regrtest test runner: Add XML support to the refleak
checker (-R option). Patch by Victor Stinner. Buil- d
- gh-119729: On POSIX systems, the pkg-config (.pc) filenames now
include the ABI flags, which may include debug (“d”) and
free-threaded (“t”). For example: * python-3.14.pc (default,
non-debug build) * python-3.14d.pc (default, debug build) *
python-3.14t.pc (free-threaded build)
- gh-115119: Fall back to the bundled libmpdec if a system version
cannot be found.
- gh-119132: Update sys.version to identify whether the build is
default build or free-threading build. Patch By Donghee Na.
- gh-118836: Fix an AssertionError when building with
- -enable-experimental-jit and the compiler emits a SHT_NOTE
section.
- gh-118943: Fix a possible race condition affecting parallel
builds configured with --enable-experimental-jit, in which
compilation errors could be caused by an incompletely-generated
header file.
- Windows
- gh-119679: Ensures correct import libraries are included in
Windows installs.
- gh-119690: Adds Unicode support and fixes audit events for
_winapi.CreateNamedPipe.
- gh-111201: Add support for new pyrepl on Windows
- gh-119070: Fixes py.exe handling of shebangs like /usr/bin/env
python3.12, which were previously interpreted as python3.exe
instead of python3.12.exe.
- gh-117505: Fixes an issue with the Windows installer not running
ensurepip in a fully isolated environment. This could cause
unexpected interactions with the user site-packages.
- gh-118209: Avoid crashing in mmap on Windows when the mapped
memory is inaccessible due to file system errors or access
violations.
- gh-116145: Updated bundled Tcl/Tk to 8.6.14.
- C API
- gh-119585: Fix crash when a thread state that was created by
PyGILState_Ensure() calls a destructor that during
PyThreadState_Clear() that calls back into PyGILState_Ensure()
and PyGILState_Release(). This might occur when in the
free-threaded build or when using thread-local variables whose
destructors call PyGILState_Ensure().
- gh-119336: Restore the removed _PyLong_NumBits() function. It is
used by the pywin32 project. Patch by Ethan Smith
- gh-119247: Added Py_BEGIN_CRITICAL_SECTION_SEQUENCE_FAST and
Py_END_CRITICAL_SECTION_SEQUENCE_FAST macros to make it possible
to use PySequence_Fast APIs safely when free-threaded, and
update str.join to work without the GIL using them.
- gh-111389: Add PyHASH_MULTIPLIER constant: prime multiplier used
in string and various other hashes. Patch by Victor Stinner.
- gh-116984: Make mimalloc includes relative to the current file
to avoid embedders or extensions needing to include
Internal/mimalloc if they are already including internal CPython
headers.
- gh-118789: Restore _PyWeakref_ClearRef that was previously
removed in Python 3.13 alpha 1.
* Thu May 09 2024 Matej Cepl <mcepl@cepl.eu>
- Use proper version name including tilda to separate pre-release
version.
https://en.opensuse.org/openSUSE:Package_versioning_guidelines
* Thu May 09 2024 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.13.0b1:
- Security
- gh-116741: Update bundled libexpat to 2.6.2
- gh-117233: Detect BLAKE2, SHA3, Shake, & truncated SHA512 support
in the OpenSSL-ish libcrypto library at build time. This allows
hashlib to be used with libraries that do not to support every
algorithm that upstream OpenSSL does.
- Core and Builtins
- gh-118414: Add instrumented opcodes to YIELD_VALUE assertion for
tracing cases.
- gh-117953: When a builtin or extension module is imported for
the first time, while a subinterpreter is active, the module’s
init function is now run by the main interpreter first before
import continues in the subinterpreter. Consequently,
single-phase init modules now fail in an isolated subinterpreter
without the init function running under that interpreter,
whereas before it would run under the subinterpreter before
failing, potentially leaving behind global state and callbacks
and otherwise leaving the module in an inconsistent state.
- gh-117549: Don’t use designated initializer syntax in inline
functions in internal headers. They cause problems for C++ or
MSVC users who aren’t yet using the latest C++ standard (C++20).
While internal, pycore_backoff.h, is included (indirectly, via
pycore_code.h) by some key 3rd party software that does so for
speed.
- gh-95382: Improve performance of json.dumps() and json.dump()
when using the argument indent. Depending on the data the
encoding using json.dumps() with indent can be up to 2 to 3
times faster.
- gh-116322: In --disable-gil builds, the GIL will be enabled
while loading C extension modules. If the module indicates that
it supports running without the GIL, the GIL will be disabled
once loading is complete. Otherwise, the GIL will remain enabled
for the remainder of the interpreter’s lifetime. This behavior
does not apply if the GIL has been explicitly enabled or
disabled with PYTHON_GIL or -Xgil.
- gh-118513: Fix incorrect UnboundLocalError when two
comprehensions in the same function both reference the same
name, and in one comprehension the name is bound while in the
other it’s an implicit global.
- gh-118518: Allow the Linux perf support to work without frame
pointers using perf’s advanced JIT support. The feature is
activated when using the PYTHON_PERF_JIT_SUPPORT environment
variable or when running Python with -Xperf_jit. Patch by Pablo
Galindo.
- gh-117514: Add sys._is_gil_enabled() function that returns
whether the GIL is currently enabled. In the default build it
always returns True because the GIL is always enabled. In the
free-threaded build, it may return True or False.
- gh-118164: Break a loop between the Python implementation of the
decimal module and the Python code for integer to string
conversion. Also optimize integer to string conversion for
values in the range from 9_000 to 135_000 decimal digits.
- gh-118473: Fix sys.set_asyncgen_hooks() not to be partially set
when raising TypeError.
- gh-118465: Compiler populates the new __firstlineno__ field on a
class with the line number of the first line of the class
definition.
- gh-118492: Fix an issue where the type cache can expose a
previously accessed attribute when a finalizer is run.
- gh-117714: update async_generator.athrow().close() and
async_generator.asend().close() to close their section of the
underlying async generator
- gh-111201: The interactive interpreter is now implemented in
Python, which allows for a number of new features like colors,
multiline input, history viewing, and paste mode. Contributed by
Pablo Galindo, Łukasz Langa and Lysandros Nikolaou based on code
from the PyPy project.
- gh-74929: Implement PEP 667: converted FrameType.f_locals and
PyFrame_GetLocals() to return a write-through proxy object when
the frame refers to a function or comprehension.
- gh-116767: Fix crash in compiler on ‘async with’ that has many
context managers.
- gh-118335: Change how to use the tier 2 interpreter. Instead of
running Python with -X uops or setting the environment variable
PYTHON_UOPS=1, this choice is now made at build time by
configuring with --enable-experimental-jit=interpreter.
- Beware! This changes the environment variable to enable or
disable micro-ops to PYTHON_JIT. The old PYTHON_UOPS is no
longer used.
- gh-118306: Update JIT compilation to use LLVM 18
- gh-118160: Annotation scopes within classes can now contain
comprehensions. However, such comprehensions are not inlined
into their parent scope at runtime. Patch by Jelle Zijlstra.
- gh-118272: Fix bug where generator.close does not free the
generator frame’s locals.
- gh-118216: Don’t consider __future__ imports with dots before
the module name.
- gh-118074: Make sure that the Executor objects in the COLD_EXITS
array aren’t assumed to be GC-able (which would access bytes
outside the object).
- gh-107674: Lazy load frame line number to improve performance of
tracing
- gh-118082: Improve SyntaxError message for imports without
names, like in from x import and import cases. It now points out
to users that import expects at least one name after it.
- gh-118090: Improve SyntaxError message for empty type param
brackets.
- gh-102511: Speed up os.path.splitroot() with a native
implementation.
- gh-117958: Added a get_jit_code() method to access JIT compiled
machine code from the UOp Executor when the experimental JIT is
enabled. Patch by Anthony Shaw.
- gh-117901: Add option for compiler’s codegen to save nested
instruction sequences for introspection.
- gh-116622: Redirect stdout and stderr to system log when
embedded in an Android app.
- gh-109118: annotation scope within class scopes can now contain
lambdas.
- gh-117894: Prevent agen.aclose() objects being re-used after
.throw().
- gh-117881: prevent concurrent access to an async generator via
athrow().throw() or asend().throw()
- gh-115874: Fixed a possible segfault during garbage collection
of _asyncio.FutureIter objects
- gh-117536: Fix a RuntimeWarning when calling
agen.aclose().throw(Exception).
- gh-117755: Fix mimalloc allocator for huge memory allocation
(around 8,589,934,592 GiB) on s390x. Patch by Victor Stinner.
- gh-117750: Fix issue where an object’s dict would get out of
sync with the object’s internal values when being cleared.
obj.__dict__.clear() now clears the internal values, but leaves
the dict attached to the object.
- gh-117431: Improve the performance of the following bytes and
bytearray methods by adapting them to the METH_FASTCALL calling
convention:
count()
find()
index()
rfind()
rindex()
- gh-117709: Speed up calls to str() with positional-only
argument, by using the PEP 590 vectorcall calling convention.
Patch by Erlend Aasland.
- gh-117680: Give _PyInstructionSequence a Python interface and
use it in tests.
- gh-115776: Statically allocated objects are, by definition,
immortal so must be marked as such regardless of whether they
are in extension modules or not.
- gh-117641: Speedup os.path.commonpath() on Unix.
- gh-117636: Speedup os.path.join().
- gh-117607: Speedup os.path.relpath().
- gh-117385: Remove unhandled PY_MONITORING_EVENT_BRANCH and
PY_MONITORING_EVENT_EXCEPTION_HANDLED events from
sys.settrace().
- gh-116322: Extension modules may indicate to the runtime that
they can run without the GIL. Multi-phase init modules do so by
calling providing Py_MOD_GIL_NOT_USED for the Py_mod_gil slot,
while single-phase init modules call
PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED) from their
init function.
- gh-116129: Implement PEP 696, adding support for defaults on
type parameters. Patch by Jelle Zijlstra.
- gh-93502: Add two new functions to the C-API,
PyRefTracer_SetTracer() and PyRefTracer_GetTracer(), that allows
to track object creation and destruction the same way the
tracemalloc module does. Patch by Pablo Galindo
- gh-107674: Improved the performance of sys.settrace()
significantly
- gh-95754: Improve the error message when a script shadowing a
module from the standard library causes AttributeError to be
raised. Similarly, improve the error message when a script
shadowing a third party module attempts to access an attribute
from that third party module while still initialising.
- gh-99180: Elide uninformative traceback indicators in return and
simple assignment statements. Patch by Pablo Galindo.
- gh-105879: Allow the globals and locals arguments to exec() and
eval() to be passed as keywords.
- Library
- gh-118418: A DeprecationWarning is now emitted if you fail to
pass a value to the new type_params parameter of
typing._eval_type() or typing.ForwardRef._evaluate(). (Using
either of these private and undocumented functions is
discouraged to begin with, but failing to pass a value to the
type_params parameter may lead to incorrect behaviour on Python
3.12 or newer.)
- gh-118660: Add an optional second type parameter to
typing.ContextManager and typing.AsyncContextManager,
representing the return types of __exit__() and __aexit__()
respectively. This parameter defaults to bool | None.
- gh-118650: The enum module allows method named _repr_* to be
defined on Enum types.
- gh-118648: Add type parameter defaults to typing.Generator and
typing.AsyncGenerator.
- gh-101137: Mime type text/x-rst is now supported by mimetypes.
- gh-118164: The Python implementation of the decimal module could
appear to hang in relatively small power cases (like 2**117) if
context precision was set to a very high value. A different
method to check for exactly representable results is used now
that doesn’t rely on computing 10**precision (which could be
effectively too large to compute).
- gh-111744: breakpoint() and pdb.set_trace() now enter the
debugger immediately after the call rather than before the next
line is executed.
- gh-118500: Add pdb support for zipapps
- gh-118406: Add signature for sqlite3.Connection objects.
- gh-101732: Use a Y2038 compatible openssl time function when
available.
- gh-118404: Fix inspect.signature() for non-comparable callables.
- gh-118402: Fix inspect.signature() for the result of the
functools.cmp_to_key() call.
- gh-116622: On Android, sysconfig.get_platform now returns the
format specified by PEP 738.
- gh-118285: Allow to specify the signature of custom callable
instances of extension type by the __text_signature__ attribute.
Specify signatures of operator.attrgetter, operator.itemgetter,
and operator.methodcaller instances.
- gh-118314: Fix an edge case in binascii.a2b_base64() strict
mode, where excessive padding is not detected when no padding is
necessary.
- gh-118271: Add the PhotoImage methods read() to read an image
from a file and data() to get the image data. Add background and
grayscale parameters to PhotoImage method write().
- gh-118225: Add the PhotoImage method copy_replace() to copy a
region from one image to other image, possibly with pixel
zooming and/or subsampling. Add from_coords parameter to
PhotoImage methods copy(), zoom() and subsample(). Add zoom and
subsample parameters to PhotoImage method copy().
- gh-118221: Fix a bug where sqlite3.Connection.iterdump() could
fail if a custom row factory was used. Patch by Erlend Aasland.
- gh-118013: Fix regression introduced in gh-103193 that meant
that calling inspect.getattr_static() on an instance would cause
a strong reference to that instance’s class to persist in an
internal cache in the inspect module. This caused unexpected
memory consumption if the class was dynamically created, the
class held strong references to other objects which took up a
significant amount of memory, and the cache contained the sole
strong reference to the class. The fix for the regression leads
to a slowdown in getattr_static(), but the function should still
be significantly faster than it was in Python 3.11. Patch by
Alex Waygood.
- gh-118218: Speed up itertools.pairwise() in the common case by
up to 1.8x.
- gh-117486: Improve the behavior of user-defined subclasses of
ast.AST. Such classes will now require no changes in the usual
case to conform with the behavior changes of the ast module in
Python 3.13. Patch by Jelle Zijlstra.
- gh-90848: Fixed unittest.mock.create_autospec() to configure
parent mock with keyword arguments.
- gh-118168: Fix incorrect argument substitution when
typing.Unpack is used with the builtin tuple. typing.Unpack now
raises TypeError when used with certain invalid types. Patch by
Jelle Zijlstra.
- gh-118131: Add command-line interface for the random module.
Patch by Hugo van Kemenade.
- gh-118107: Fix zipimport reading of ZIP64 files with file
entries that are too big or offset too far.
- gh-117535: Change the unknown filename of warnings from sys to
<sys> to clarify that it’s not a real filename.
- gh-114053: Fix erroneous NameError when calling
typing.get_type_hints() on a class that made use of PEP 695 type
parameters in a module that had from __future__ import
annotations at the top of the file. Patch by Alex Waygood.
- gh-116931: Add parameter fileobj check for
tarfile.TarFile.addfile()
- gh-117995: Don’t raise DeprecationWarning when a sequence of
parameters is used to bind indexed, nameless placeholders. See
also gh-100668.
- gh-80361: Fix TypeError in email.Message.get_payload() when the
charset is RFC 2231 encoded.
- gh-86650: Fix IndexError when parse some emails with invalid
Message-ID (including one-off addresses generated by Microsoft
Outlook).
- gh-117691: Improve the error messages emitted by tarfile
deprecation warnings relating to PEP 706. If a filter argument
is not provided to extract() or extractall, the deprecation
warning now points to the line in the user’s code where the
relevant function was called. Patch by Alex Waygood.
- gh-115060: Speed up pathlib.Path.glob() by omitting an initial
is_dir() call. As a result of this change, glob() can no longer
raise OSError.
- gh-77102: site module now parses .pth file with UTF-8 first, and
locale encoding if UnicodeDecodeError happened. It supported
only locale encoding before.
- gh-76785: We’ve exposed the low-level _interpreters module for
the sake of the PyPI implementation of PEP 734. It was sometimes
available as the _xxsubinterpreters module and was formerly used
only for testing. For the most part, it should be considered an
internal module, like _thread and _imp. See
https://discuss.python.org/t/pep-734-multiple-interpreters-in-the-stdlib/41147/26.
- gh-115060: Speed up pathlib.Path.glob() by not scanning
directories for non-wildcard pattern segments.
- gh-117727: Speed up pathlib.Path.iterdir() by using os.scandir()
internally.
- gh-117586: Speed up pathlib.Path.walk() by working with strings
internally.
- gh-117722: Change the new multi-separator support in
asyncio.Stream.readuntil() to only accept tuples of separators
rather than arbitrary iterables.
- gh-117692: Fixes a bug when doctest.DocTestFinder was failing on
wrapped builtin_function_or_method.
- gh-117348: Largely restored import time performance of
configparser by avoiding dataclasses.
- gh-117663: Fix _simple_enum to detect aliases when multiple
arguments are present but only one is the member value.
- gh-117618: Support package.module as filename for break command
of pdb
- gh-102247: the status codes enum with constants in
http.HTTPStatus are updated to include the names from RFC9110.
This RFC includes some HTTP statuses previously only used for
WEBDAV and assigns more generic names to them.
- The old constants are preserved for backwards compatibility.
- gh-117586: Speed up pathlib.Path.glob() by working with strings
internally.
- gh-117225: Add colour to doctest output. Patch by Hugo van
Kemenade.
- gh-117566: ipaddress.IPv6Address.is_loopback() will now return
True for IPv4-mapped loopback addresses, i.e. addresses in the
::ffff:127.0.0.0/104 address space.
- gh-117546: Fix issue where os.path.realpath() stopped resolving
symlinks after encountering a symlink loop on POSIX.
- gh-116720: Improved behavior of asyncio.TaskGroup when an
external cancellation collides with an internal cancellation.
For example, when two task groups are nested and both experience
an exception in a child task simultaneously, it was possible
that the outer task group would misbehave, because its internal
cancellation was swallowed by the inner task group.
- In the case where a task group is cancelled externally and also
must raise an ExceptionGroup, it will now call the parent task’s
cancel() method. This ensures that a asyncio.CancelledError will
be raised at the next await, so the cancellation is not lost.
- An added benefit of these changes is that task groups now
preserve the cancellation count (asyncio.Task.cancelling()).
- In order to handle some corner cases, asyncio.Task.uncancel()
may now reset the undocumented _must_cancel flag when the
cancellation count reaches zero.
- gh-117516: Add typing.TypeIs, implementing PEP 742. Patch by
Jelle Zijlstra.
- gh-117503: Fix support of non-ASCII user names in bytes paths in
os.path.expanduser() on Posix.
- gh-117394: os.path.ismount() is now 2-3 times faster if the user
has permissions.
- gh-117313: Only treat '\n', '\r' and '\r\n' as line separators
in re-folding the email messages. Preserve control characters
'\v', '\f', '\x1c', '\x1d' and '\x1e' and Unicode line
separators '\x85', '\u2028' and '\u2029' as is.
- gh-117142: Convert _ctypes to multi-phase initialisation (PEP
489).
- gh-66543: Add the mimetypes.guess_file_type() function which
works with file path. Passing file path instead of URL in
guess_type() is soft deprecated.
- gh-68583: webbrowser CLI: replace getopt with argparse, add long
options. Patch by Hugo van Kemenade.
- gh-116871: Name suggestions for AttributeError and ImportError
now only include underscored names if the original name was
underscored.
- gh-116023: Don’t show empty fields (value None or []) in
ast.dump() by default. Add show_empty=False parameter to
optionally show them.
- gh-115961: Added name and mode attributes for compressed and
archived file-like objects in modules bz2, lzma, tarfile and
zipfile. The value of the mode attribute of gzip.GzipFile was
changed from integer (1 or 2) to string ('rb' or 'wb'). The
value of the mode attribute of the readable file-like object
returned by zipfile.ZipFile.open() was changed from 'r' to 'rb'.
- gh-82062: Fix inspect.signature() to correctly handle parameter
defaults on methods in extension modules that use names defined
in the module namespace.
- gh-83856: Honor atexit for all multiprocessing start methods
- gh-113081: Print colorized exception just like built-in
traceback in pdb
- gh-112855: Speed up pickling of pathlib.PurePath objects. Patch
by Barney Gale.
- gh-111744: Support opcode events in bdb
- gh-109617: ncurses: fixed a crash that could occur on macOS 13
or earlier when Python was built with Apple Xcode 15’s SDK.
- gh-83151: Enabled arbitrary statements and evaluations in pdb
shell to access the local variables of the current frame, which
made it possible for multi-scope code like generators or nested
function to work.
- gh-110209: Add __class_getitem__() to types.GeneratorType and
types.CoroutineType for type hinting purposes. Patch by James
Hilton-Balfe.
- gh-108191: The types.SimpleNamespace now accepts an optional
positional argument which specifies initial values of attributes
as a dict or an iterable of key-value pairs.
- gh-62090: Fix assertion errors caused by whitespace in metavars
or SUPPRESS-ed groups in argparse by simplifying usage
formatting. Patch by Ali Hamdan.
- gh-102402: Adjust logging.LogRecord to use time.time_ns() and
fix minor bug related to floating point math.
- gh-100242: Bring pure Python implementation
functools.partial.__new__ more in line with the C-implementation
by not just always checking for the presence of the attribute
'func' on the first argument of partial. Instead, both the
Python version and the C version perform an isinstance(func,
partial) check on the first argument of partial.
- gh-99730: HEAD requests are no longer upgraded to GET request
during redirects in urllib.
- gh-66410: Callbacks registered in the tkinter module now take
arguments as various Python objects (int, float, bytes, tuple),
not just str. To restore the previous behavior set tkinter
module global wantobject to 1 before creating the Tk object or
call the wantobject() method of the Tk object with argument 1.
Calling it with argument 2 restores the current default
behavior.
- bpo-40943: Fix several IndexError when parse emails with
truncated Message-ID, address, routes, etc, e.g. example@.
- bpo-39324: Add mime type mapping for .md <-> text/markdown
- bpo-18108: shutil.chown() now supports dir_fd and
follow_symlinks keyword arguments.
- bpo-30988: Fix parsing of emails with invalid address headers
having a leading or trailing dot. Patch by tsufeki.
- bpo-32839: Add the after_info() method for Tkinter widgets.
- Documentation
- gh-117928: The minimum Sphinx version required for the
documentation is now 6.2.1.
- Build
- gh-118734: Fixes Windows build when invoked directly (not
through the build.bat script) without specifying a value for
UseTIER2.
- gh-115119: The configure option --with-system-libmpdec now
defaults to yes. The bundled copy of libmpdecimal will be
removed in Python 3.15.
- gh-117845: Fix building against recent libedit versions by
detecting readline hook signatures in configure.
- gh-116622: A testbed project was added to run the test suite on
Android.
- gh-117645: Increase WASI stack size from 512 KiB to 8 MiB and
the initial memory from 10 MiB to 20 MiB. Patch by Victor
Stinner.
- gh-115119: configure now uses pkg-config to detect decimal
dependencies if the --with-system-libmpdec option is given.
- Windows
- gh-115119: Update Windows installer to use libmpdecimal 4.0.0.
- gh-118486: os.mkdir() now accepts mode of 0o700 to restrict the
new directory to the current user.
- gh-118347: Fixes launcher updates not being installed.
- gh-118293: The multiprocessing module now passes the
STARTF_FORCEOFFFEEDBACK flag when spawning processes to tell
Windows not to change the mouse cursor.
- gh-115009: Update Windows installer to use SQLite 3.45.3.
- gh-90329: Suppress the warning displayed on virtual environment
creation when the requested and created paths differ only by a
short (8.3 style) name. Warnings will continue to be shown if a
junction or symlink in the path caused the venv to be created in
a different location than originally requested.
- gh-117786: Fixes virtual environments not correctly launching
when created from a Store install.
- macOS
- gh-115119: Update macOS installer to use libmpdecimal 4.0.0.
- gh-114099: iOS preprocessor symbol usage was made compatible
with older macOS SDKs.
- gh-115009: Update macOS installer to use SQLite 3.45.3.
- gh-91629: Use ~/.config/fish/conf.d configs and fish_add_path to
set PATH when installing for the Fish shell.
- IDLE
- bpo-34774: Use user-selected color theme for Help => IDLE Doc.
- C API
- gh-118124: Fix Py_BUILD_ASSERT and Py_BUILD_ASSERT_EXPR for
non-constant expressions: use static_assert() on C11 and newer.
Patch by Victor Stinner.
- gh-110850: Add “Raw” variant of PyTime functions
PyTime_MonotonicRaw()
PyTime_PerfCounterRaw()
PyTime_TimeRaw()
Patch by Victor Stinner.
- gh-117987: Restore functions removed in Python 3.13 alpha 1:
Py_SetPythonHome()
Py_SetProgramName()
PySys_SetArgvEx()
PySys_SetArgv()
Patch by Victor Stinner.
- gh-117929: Restore removed PyEval_InitThreads() function. Patch
by Victor Stinner.
- gh-117534: Improve validation logic in the C implementation of
datetime.datetime.fromisoformat() to better handle invalid
years. Patch by Vlad Efanov.
- gh-68114: Fixed skipitem()’s handling of the old ‘w’ and ‘w#’
formatters. These are no longer supported and now raise an
exception if used.
- gh-111997: Add a C-API for firing monitoring events.
- Python 3.13.0 alpha 6:
- Core and Builtins
- gh-117648: Improve performance of os.path.join() and
os.path.expanduser().
- gh-117584: Raise TypeError for non-paths in posixpath.relpath().
- gh-117494: Refactored the instruction sequence data structure
out of compile.c into instruction_sequence.c.
- gh-116968: Introduce a unified 16-bit backoff counter type
(_Py_BackoffCounter), shared between the Tier 1 adaptive
specializer and the Tier 2 optimizer. The API used for adaptive
specialization counters is changed but the behavior is (supposed
to be) identical.
- The behavior of the Tier 2 counters is changed:
There are no longer dynamic thresholds (we never varied these).
All counters now use the same exponential backoff.
The counter for JUMP_BACKWARD starts counting down from 16.
The temperature in side exits starts counting down from 64.
- gh-117431: Improve the performance of the following bytes and
bytearray methods by adapting them to the METH_FASTCALL calling
convention:
endswith()
startswith()
- gh-117431: Improve the performance of the following str methods
by adapting them to the METH_FASTCALL calling convention:
count()
endswith()
find()
index()
rfind()
rindex()
startswith()
- gh-117411: Move PyFutureFeatures to an internal header and make
it private.
- gh-109120: Added handle of incorrect star expressions, e.g f(3,
* ). Patch by Grigoryev Semyon
- gh-117381: Fix error message for ntpath.commonpath().
- gh-117349: Optimise several functions in os.path.
- gh-117335: Raise TypeError for non-sequences for
ntpath.commonpath().
- gh-117266: Fix crashes for certain user-created subclasses of
ast.AST. Such classes are now expected to set the _field_types
attribute.
- 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-117108: Change the old space bit of objects in the young
generation from 0 to gcstate->visited, so that any objects
created during GC will have the old bit set correctly if they
get moved into the old generation.
- gh-117108: The cycle GC now chooses the size of increments based
on the total heap size, instead of the rate of object creation.
This ensures that it can keep up with growing heaps.
- gh-117114: Make os.path.isdevdrive() available on all platforms.
For those that do not offer Dev Drives, it will always return
False.
- 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-116626: Ensure INSTRUMENTED_CALL_FUNCTION_EX always emits
CALL
- gh-116554: list.sort() now exploits more cases of partial
ordering, particularly those with long descending runs with
sub-runs of equal values. Those are recognized as single runs
now (previously, each block of repeated values caused a new run
to be created).
- gh-114099: Added a Loader that can discover extension modules in
an iOS-style Frameworks folder.
- gh-115775: Compiler populates the new __static_attributes__
field on a class with the names of attributes of this class
which are accessed through self.X from any function in its body.
- gh-115776: The array of values, the PyDictValues struct is now
embedded in the object during allocation. This provides better
performance in the common case, and does not degrade as much
when the object’s __dict__ is materialized.
- gh-108362: Implement an incremental cyclic garbage collector. By
collecting the old generation in increments, there is no need
for a full heap scan. This can hugely reduce maximum pause time
for programs with large heaps.
- Reduce the number of generations from three to two. The old
generation is split into two spaces, “visited” and “pending”.
- Collection happens in two steps:: * An increment is formed from
the young generation and a small part of the pending space. *
This increment is scanned and the survivors moved to the end of
the visited space.
- When the collecting space becomes empty, the two spaces are
swapped.
- gh-109870: Dataclasses now calls exec() once per dataclass,
instead of once per method being added. This can speed up
dataclass creation by up to 20%.
- gh-97901: Mime type text/rtf is now supported by mimetypes.
- bpo-24612: Improve the SyntaxError that happens when ‘not’
appears after an operator. Patch by Pablo Galindo
- Library
- gh-117467: Preserve mailbox ownership when rewriting in
mailbox.mbox.flush(). Patch by Tony Mountifield.
- gh-114848: Raise FileNotFoundError when getcwd() returns
‘(unreachable)’, which can happen on Linux >= 2.6.36 with glibc
< 2.27.
- gh-117459: asyncio.asyncio.run_coroutine_threadsafe() now keeps
the traceback of CancelledError, TimeoutError and
InvalidStateError which are raised in the coroutine.
- gh-117337: Deprecate undocumented glob.glob0() and glob.glob1()
functions. Use glob.glob() and pass a directory to its root_dir
argument instead.
- gh-117348: Refactored configparser.RawConfigParser._read() to
reduce cyclometric complexity and improve comprehensibility.
- gh-66449: configparser.ConfigParser now accepts unnamed sections
before named ones, if configured to do so.
- gh-88014: In documentation of gzip.GzipFile in module gzip,
explain data type of optional constructor argument mtime, and
recommend mtime = 0 for generating deterministic streams.
- 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-117294: A DocTestCase now reports as skipped if all examples
in the doctest are skipped.
- gh-98966: In subprocess, raise a more informative message when
stdout=STDOUT.
- gh-117225: doctest: only print “and X failed” when non-zero,
don’t pluralise “1 items”. Patch by Hugo van Kemenade.
- gh-117205: Speed up compileall.compile_dir() by 20% when using
multiprocessing by increasing chunksize.
- gh-117178: Fix regression in lazy loading of self-referential
modules, introduced in gh-114781.
- gh-112383: Fix dis module’s handling of ENTER_EXECUTOR
instructions.
- gh-117182: Lazy-loading of modules that modify their own
__class__ no longer reverts the __class__ to types.ModuleType.
- 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-109653: Deferred select imports in importlib.metadata and
importlib.resources for a 14% speedup.
- gh-70647: Start the deprecation period for the current behavior
of datetime.datetime.strptime() and time.strptime() which always
fails to parse a date string with a ValueError involving a day
of month such as strptime("02-29", "%m-%d") when a year is not
specified and the date happen to be February 29th. This should
help avoid users finding new bugs every four years due to a
natural mistaken assumption about the API when parsing partial
date values.
- gh-116987: Fixed inspect.findsource() for class code objects.
- gh-114099: Modify standard library to allow for iOS platform
differences.
- 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-115538: _io.WindowsConsoleIO now emit a warning if a boolean
value is passed as a filedescriptor argument.
- gh-90095: Ignore empty lines and comments in .pdbrc
- gh-106531: Refreshed zipfile._path from zipp 3.18, providing
better compatibility for PyPy, better glob performance for
deeply nested zipfiles, and providing internal access to
CompleteDirs.inject for use in other tests (like
importlib.resources).
- gh-63207: On Windows, time.time() now uses the
GetSystemTimePreciseAsFileTime() clock to have a resolution
better than 1 us, instead of the GetSystemTimeAsFileTime() clock
which has a resolution of 15.6 ms. Patch by Victor Stinner.
- 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-116647: Fix recursive child in dataclasses
- gh-113171: Fixed various false positives and false negatives in
ipaddress.IPv4Address.is_private (see these docs for details)
ipaddress.IPv4Address.is_global
ipaddress.IPv6Address.is_private
ipaddress.IPv6Address.is_global
- Also in the corresponding ipaddress.IPv4Network and
ipaddress.IPv6Network attributes.
- Fixes bsc#1226448 (CVE-2024-4032).
- gh-63283: In encodings.idna, any capitalization of the the ACE
prefix (xn--) is now acceptable. Patch by Pepijn de Vos and
Zackery Spytz.
- gh-71042: Add platform.android_ver(), which provides device and
OS information on Android.
- gh-73468: Added new math.fma() function, wrapping C99’s fma()
operation: fused multiply-add function. Patch by Mark Dickinson
and Victor Stinner.
- gh-116608: The importlib.resources functions is_resource(),
open_binary(), open_text(), path(), read_binary(), and
read_text() are un-deprecated, and support subdirectories via
multiple positional arguments. The contents() function also
allows subdirectories, but remains deprecated.
- 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-114314: In ctypes, ctype data is now stored in type objects
directly rather than in a dict subclass. This is an internal
change that should not affect usage.
- gh-116401: Fix blocking os.fwalk() and shutil.rmtree() on
opening named pipe.
- gh-71052: Implement ctypes.util.find_library() on Android.
- gh-90535: Fix support of interval values > 1 in
logging.TimedRotatingFileHandler for when='MIDNIGHT' and
when='Wx'.
- gh-113308: Remove some internal protected parts from uuid:
_has_uuid_generate_time_safe, _netbios_getnode,
_ipconfig_getnode, and _load_system_functions. They were unused.
- gh-115627: Fix the ssl module error handling of connection
terminate by peer. It now throws an OSError with the appropriate
error code instead of an EOFError.
- gh-114847: Speed up os.path.realpath() on non-Windows platforms.
- gh-114271: Fix a race in threading.Thread.join().
- threading._MainThread now always represents the main thread of
the main interpreter.
- PyThreadState.on_delete and PyThreadState.on_delete_data have
been removed.
- gh-113538: Add asyncio.Server.close_clients() and
asyncio.Server.abort_clients() methods which allow to more
forcefully close an asyncio server.
- gh-85287: Changes Unicode codecs to return UnicodeEncodeError or
UnicodeDecodeError, rather than just UnicodeError.
- gh-113548: pdb now allows CLI arguments to pdb -m.
- gh-112948: Make completion of pdb similar to Python REPL
- gh-105866: Fixed _get_slots bug which caused error when defining
dataclasses with slots and a weakref_slot.
- gh-96471: Add asyncio.Queue termination with shutdown() method.
- gh-89739: The zipimport module can now read ZIP64 files.
- bpo-33533: asyncio.as_completed() now returns an object that is
both an asynchronous iterator and plain iterator. The new
asynchronous iteration pattern allows for easier correlation
between prior tasks and their completed results. This is a
closer match to concurrent.futures.as_completed()’s iteration
pattern. Patch by Justin Arthur.
- bpo-27578: inspect.getsource() (and related functions) work with
empty module files, returning '\n' (or reasonable equivalent)
instead of raising OSError. Patch by Kernc.
- bpo-37141: Accept an iterable of separators in
asyncio.StreamReader.readuntil(), stopping when one of them is
encountered.
- 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-15010: unittest.TestLoader.discover() now saves the original
value of unittest.TestLoader._top_level_dir and restores it at
the end of the call.
- Documentation
- gh-115977: Remove compatibilty references to Emscripten.
- gh-114099: Add an iOS platform guide, and flag modules not
available on iOS.
- gh-91565: Changes to documentation files and config outputs to
reflect the new location for reporting bugs - i.e. GitHub rather
than bugs.python.org.
- 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-117089: Consolidated tests for importlib.metadata in their
own metadata package.
- 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.
- Build
- gh-114736: Have WASI builds use WASI SDK 21.
- gh-115983: Skip building test modules that must be built as
shared under WASI.
- gh-71052: Add Android build script and instructions.
- 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-116195: Improves performance of os.getppid() by using an
alternate system API when available. Contributed by vxiiduu.
- gh-88494: On Windows, time.monotonic() now uses the
QueryPerformanceCounter() clock to have a resolution better than
1 us, instead of the GetTickCount64() clock which has a
resolution of 15.6 ms. Patch by Victor Stinner.
- 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-115119: Switched from vendored libmpdecimal code to a
separately-hosted external package in the cpython-source-deps
repository when building the _decimal module.
- C API
- gh-117642: Fix PEP 737 implementation for %#T and %#N.
- gh-87193: _PyBytes_Resize() can now be called for bytes objects
with reference count > 1, including 1-byte bytes objects. It
creates a new bytes object and destroys the old one if it has
reference count > 1.
- gh-117021: Fix integer overflow in PyLong_AsPid() on non-Windows
64-bit platforms.
- gh-115756: PyCode_GetFirstFree() is an ustable API now and has
been renamed to PyUnstable_Code_GetFirstFree(). (Contributed by
Bogdan Romanyuk in gh-115781)
- gh-116869: Add test_cext test: build a C extension to check if
the Python C API emits C compiler warnings. Patch by Victor
Stinner.
- gh-116869: Make the C API compatible with
- Werror=declaration-after-statement compiler flag again. Patch
by Victor Stinner.
- gh-116936: Add PyType_GetModuleByDef() to the limited C API.
Patch by Victor Stinner.
- gh-116809: Restore removed private _PyErr_ChainExceptions1()
function. Patch by Victor Stinner.
- gh-115754: In the limited C API version 3.13, getting Py_None,
Py_False, Py_True, Py_Ellipsis and Py_NotImplemented singletons
is now implemented as function calls at the stable ABI level to
hide implementation details. Getting these constants still
return borrowed references. Patch by Victor Stinner.
- gh-115754: Add Py_GetConstant() and Py_GetConstantBorrowed()
functions to get constants. For example,
Py_GetConstant(Py_CONSTANT_ZERO) returns a strong reference to
the constant zero. Patch by Victor Stinner.
- gh-111696: Add support for %T, %T#, %N and %N# formats to
PyUnicode_FromFormat(): format the fully qualified name of an
object type and of a type: call PyType_GetModuleName(). See PEP
737 for more information. Patch by Victor Stinner.
- gh-111696: Add PyType_GetModuleName() function to get the type’s
module name. Equivalent to getting the type.__module__
attribute. Patch by Eric Snow and Victor Stinner.
- gh-111696: Add PyType_GetFullyQualifiedName() function to get
the type’s fully qualified name. Equivalent to
f"{type.__module__}.{type.__qualname__}", or type.__qualname__
if type.__module__ is not a string or is equal to "builtins".
Patch by Victor Stinner.
- gh-85283: The fcntl, grp, pwd, termios, _statistics and
_testconsole C extensions are now built with the limited C API.
Patch by Victor Stinner.
- gh-111140: Add additional flags to PyLong_AsNativeBytes() and
PyLong_FromNativeBytes() to allow the caller to determine how to
handle edge cases around values that fill the entire buffer.
- gh-113024: Add PyObject_GenericHash() function.
* Wed Mar 20 2024 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0a5:
- 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-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-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-112087: list is now compatible with the implementation
of PEP 703.
- gh-116381: Add specialization for CONTAINS_OP.
- gh-116296: Fix possible refleak in object.__reduce__()
internal error handling.
- gh-115823: Properly calculate error ranges in the parser
when raising SyntaxError exceptions caused by invalid byte
sequences. Patch by Pablo Galindo
- gh-115778: Add tierN annotation for instruction definition
in interpreter DSL.
- gh-115733: Fix crash when calling next() on exhausted list
iterators.
- gh-115700: The regen-cases build stage now works on
Windows.
- gh-115347: Fix bug where docstring was replaced by a
redundant NOP when Python is run with -OO.
- gh-115323: Make error message more meaningful for when
bytearray.extend() is called with a str object.
- gh-112175: Every PyThreadState now has its own
eval_breaker, allowing specific threads to be interrupted.
- gh-115154: Fix a bug that was causing the
tokenize.untokenize() function to handle unicode named
literals incorrectly. Patch by Pablo Galindo
- gh-112433: Add ability to force alignment of
ctypes.Structure by way of the new _align_ attribute on the
class.
- gh-104090: The multiprocessing resource tracker now
exits with non-zero status code if a resource leak was
detected. It still exits with status code 0 otherwise.
- gh-105858: Improve the constructors for ast
nodes. Arguments of list types now default to an empty list
if omitted, and optional fields default to None. AST nodes
now have an __annotations__ attribute with the expected
types of their attributes. Passing unrecognized extra
arguments to AST nodes is deprecated and will become an
error in Python 3.15. Omitting a required argument to an
AST node is deprecated and will become an error in Python
3.15. Patch by Jelle Zijlstra.
- gh-101860: Expose __name__ attribute on property.
- gh-96497: Fix incorrect resolution of mangled class
variables used in assignment expressions in comprehensions.
- Library
- gh-116600: Fix repr() for global Flag members.
- gh-116349: platform.java_ver() is deprecated and will be
removed in 3.15. It was largely untested, had a confusing
API, and was only useful for Jython support.
- 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-116127: typing: implement PEP 705 which adds
typing.ReadOnly support to typing.TypedDict.
- gh-116325: typing: raise SyntaxError instead of
AttributeError on forward references as empty strings.
- gh-115957: When asyncio.TaskGroup.create_task is called on
an inactive asyncio.TaskGroup, the given coroutine will be
closed (which prevents a RuntimeWarning).
- gh-115978: Disable preadv(), readv(), pwritev(),
and writev() on WASI. Under wasmtime for WASI
0.2, these functions don’t pass test_posix
(gh-bytecodealliance/wasmtime#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-89547: Add support for nested typing special forms like
Final[ClassVar[int]].
- gh-65824: Improve the less prompt in pydoc.
- gh-116040: [Enum] fix by-value calls when second value is
falsey; e.g. Cardinal(1, 0)
- gh-115821: [Enum] Improve error message when calling
super().__new__() in custom __new__.
- gh-85644: Use the XDG_CURRENT_DESKTOP environment variable
in webbrowser to check desktop. Prefer it to the deprecated
GNOME_DESKTOP_SESSION_ID for GNOME detection.
- 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-115532: Add kernel density estimation to the statistics
module.
- gh-115714: On WASI, the time module no longer get process
time using times() or CLOCK_PROCESS_CPUTIME_ID, system API
is that is unreliable and is likely to be removed from
WASI. The affected clock functions fall back to calling
clock().
- 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: Restore support of space delimiter with
skipinitialspace=True in csv. 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-112997: Stop logging potentially sensitive callback
arguments in asyncio unless debug mode is active.
- gh-114914: Fix an issue where an abandoned StreamWriter
would not be garbage collected.
- 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-112720: Refactor dis.ArgResolver to make it possible to
subclass and change the way jump args are interpreted.
- gh-112006: Fix inspect.unwrap() for types
with the __wrapper__ data descriptor. Fix
inspect.Signature.from_callable() for builtins
classmethod() and staticmethod().
- 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-103092: Isolate _lsprof (apply PEP 687).
- gh-113942: pydoc no longer skips global functions
implemented as builtin methods, such as
MethodDescriptorType and WrapperDescriptorType.
- gh-115256: Added DeprecationWarning when accessing the
tarfile attribute of TarInfo objects. The attribute is
never used internally and is only attached to TarInfos when
the tarfile is opened in write-mode, not read-mode. The
attribute creates an unnecessary reference cycle which may
cause corruption when not closing the handle after writing
a tarfile.
- gh-115197: urllib.request no longer resolves the hostname
before checking it against the system’s proxy bypass list
on macOS and Windows.
- gh-113812: DatagramTransport.sendto() will now send
zero-length datagrams if called with an empty bytes
object. The transport flow control also now accounts for
the datagram header when calculating the buffer size.
- 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-114709: posixpath.commonpath() now raises a ValueError
exception when passed an empty iterable. Previously,
IndexError was raised.
posixpath.commonpath() now raises a TypeError exception
when passed None. Previously, ValueError was raised.
- gh-114610: Fix bug where pathlib.PurePath.with_stem()
converted a non-empty path suffix to a stem when given an
empty stem argument. It now raises ValueError, just like
pathlib.PurePath.with_suffix() does when called on a path
with an empty stem, given a non-empty suffix argument.
- gh-107361: Add ssl.VERIFY_X509_PARTIAL_CHAIN and
VERIFY_X509_STRICT to the default SSL context created with
ssl.create_default_context().
- 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-107625: Raise configparser.ParsingError from read()
and read_file() methods of configparser.ConfigParser if a
key without a corresponding value is continued (that is,
followed by an indented line).
- 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-57141: Add option for non-shallow comparisons to
filecmp.dircmp like filecmp.cmp(). Original patch by Steven
Ward. Enhanced by Tobias Rautenkranz
- gh-69990: Profile.print_stats() has been improved to accept
multiple sort arguments. Patched by Chiu-Hsiang Hsu and
Furkan Onder.
- gh-104061: Add socket.SO_BINDTOIFINDEX constant.
- gh-60346: Fix ArgumentParser inconsistent with
parse_known_args.
- gh-102389: Add windows_31j to aliases for cp932 codec
- gh-72249: functools.partial`s of :func:`repr() has been
improved to include the module name. Patched by Furkan
Onder and Anilyka Barry.
- 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-31116: Add Z85 encoding to base64.
- 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.
- bpo-41122: Failing to pass arguments properly to
functools.singledispatchmethod() now throws a TypeError
instead of hitting an index out of bounds internally.
- bpo-40818: The asyncio REPL now runs
sys.__interactivehook__ on startup. The default
implementation of sys.__interactivehook__ provides
auto-completion to the asyncio REPL. Patch contributed by
Rémi Lapeyre.
- 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-109653: Improve import time of uuid on Linux.
- Tests
- gh-71052: Add test exclusions to support running the test
suite on Android.
- gh-71052: Enable test_concurrent_futures on platforms that
support threading but not multiprocessing.
- gh-115796: Make ‘_testinternalcapi.assemble_code_object’
construct the exception table for the code object.
- 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.
- gh-115556: On Windows, commas passed in arguments to
Tools\buildbot\test.bat and PCbuild\\rt.bat are now
properly handled.
- gh-115420: Fix translation of exception hander targets by
_testinternalcapi.optimize_cfg.
- gh-115376: Fix segfault in
_testinternalcapi.compiler_codegen on bad input.
* Thu Mar 07 2024 Daniel Garcia <daniel.garcia@suse.com>
- Drop gh115133-XMLPullParserTest-fail.patch upstreamed now.
* Wed Mar 06 2024 Pedro Monreal <pmonreal@suse.com>
- Use the system-wide crypto-policies [bsc#1211301]
* Use the system default cipher list instead of hardcoded values
* Add the --with-ssl-default-suites=openssl configure option
* Tue Mar 05 2024 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.13.0a4
- Security
- gh-115399: Update bundled libexpat to 2.6.0
- gh-115243: Fix possible crashes in collections.deque.index()
when the deque is concurrently modified.
- Core and Builtins
- gh-112087: For an empty reverse iterator for list will be
reduced to reversed(). Patch by Donghee Na
- gh-114570: Add PythonFinalizationError exception. This exception
derived from RuntimeError is raised when an operation is blocked
during the Python finalization. Patch by Victor Stinner.
- gh-114695: Add sys._clear_internal_caches(), which clears all
internal performance-related caches (and deprecate the
less-general sys._clear_type_cache() function).
- gh-114828: Fix compilation crashes in uncommon code examples
using super() inside a comprehension in a class body.
- gh-112069: Adapt set and frozenset methods to Argument Clinic.
- 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-114887: Changed socket type validation in
create_datagram_endpoint() to accept all non-stream sockets.
This fixes a regression in compatibility with raw sockets.
- gh-114944: Fixes a race between PyParkingLot_Park and
_PyParkingLot_UnparkAll.
- gh-113462: Limit the number of versions that a single class can
use. Prevents a few wayward classes using up all the version
numbers.
- gh-76763: The chr() builtin function now always raises
ValueError for values outside the valid range. Previously it
raised OverflowError for very large or small values.
- gh-114806: No longer specialize calls to classes, if those
classes have metaclasses. Fixes bug where the __call__ method of
the metaclass was not being called.
- gh-107944: Improve error message for function calls with bad
keyword arguments via getargs
- gh-112529: The free-threaded build no longer allocates space for
the PyGC_Head structure in objects that support cyclic garbage
collection. A number of other fields and data structures are
used as replacements, including ob_gc_bits, ob_tid, and mimalloc
internal data structures.
- gh-114456: Lower the recursion limit under a debug build of
WASI.
- gh-114083: Compiler applies folding of LOAD_CONST with following
instruction in a separate pass before other optimisations. This
enables jump threading in certain circumstances.
- gh-114388: Fix a RuntimeWarning emitted when assign an
integer-like value that is not an instance of int to an
attribute that corresponds to a C struct member of type T_UINT
and T_ULONG. Fix a double RuntimeWarning emitted when assign a
negative integer value to an attribute that corresponds to a C
struct member of type T_UINT.
- gh-114265: Compiler propagates line numbers before optimization,
leading to more optimization opportunities and removing the need
for the guarantee_lineno_for_exits hack.
- gh-112529: The free-threaded build now has its own thread-safe
GC implementation that uses mimalloc to find GC tracked objects.
It is non-generational, unlike the existing GC implementation.
- gh-114050: Fix segmentation fault caused by an incorrect format
string in TypeError exception when more than two arguments are
passed to int.
- gh-112354: The END_FOR instruction now pops only one value. This
is to better support side exits in loops.
- gh-113884: Make queue.SimpleQueue thread safe when the GIL is
disabled.
- gh-114058: Implement the foundations of the Tier 2 redundancy
eliminator.
- gh-113939: frame.clear(): Clear frame.f_locals as well, and not
only the fast locals. This is relevant once frame.f_locals was
accessed, which would contain also references to all the locals.
- gh-112050: Convert collections.deque to use Argument Clinic.
- gh-112050: Make methods on collections.deque thread-safe when
the GIL is disabled.
- gh-113464: Add an option (--enable-experimental-jit for
configure-based builds or --experimental-jit for PCbuild-based
ones) to build an experimental just-in-time compiler, based on
copy-and-patch
- gh-113055: Make interp->obmalloc a pointer. For interpreters
that share state with the main interpreter, this points to the
same static memory structure. For interpreters with their own
obmalloc state, it is heap allocated. Add free_obmalloc_arenas()
which will free the obmalloc arenas and radix tree structures
for interpreters with their own obmalloc state.
- gh-55664: Add warning when creating type using a namespace
dictionary with non-string keys. Patched by Daniel Urban and
Furkan Onder.
- gh-104530: Use native Win32 condition variables.
- Library
- 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-102840: Fix confused traceback when floordiv, mod, or divmod
operations happens between instances of fractions.Fraction and
complex.
- 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-112903: Fix “issubclass() arg 1 must be a class” errors in
certain cases of multiple inheritance with generic aliases
(regression in early 3.13 alpha releases).
- 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-67837: Avoid race conditions in the creation of directories
during concurrent extraction in tarfile and zipfile.
- gh-115060: Speed up pathlib.Path.glob() by removing redundant
regex matching.
- gh-97928: Partially revert the behavior of tkinter.Text.count().
By default it preserves the behavior of older Python versions,
except that setting wantobjects to 0 no longer has effect. Add a
new parameter return_ints: specifying return_ints=True makes
Text.count() always returning the single count as an integer
instead of a 1-tuple or None.
- gh-114628: When csv.Error is raised when handling TypeError, do
not print the TypeError traceback.
- gh-85984: Added _POSIX_VDISABLE from C’s <unistd.h> to termios.
- gh-114965: Update bundled pip to 24.0
- gh-114959: tarfile no longer ignores errors when trying to
extract a directory on top of a file.
- gh-114894: Add array.array.clear().
- gh-114071: Support tuple subclasses using auto() for enum member
value.
- gh-109475: Fix support of explicit option value “–” in argparse
(e.g. --option=--).
- gh-49766: Fix date-datetime comparison. Now the special
comparison methods like __eq__ and __lt__ return NotImplemented
if one of comparands is date and other is datetime instead of
ignoring the time part and the time zone or forcefully return
“not equal” or raise TypeError. It makes comparison of date and
datetime subclasses more symmetric and allows to change the
default behavior by overriding the special comparison methods in
subclasses.
- gh-110190: Fix ctypes structs with array on Windows ARM64
platform by setting MAX_STRUCT_SIZE to 32 in stgdict. Patch by
Diego Russo
- gh-114678: Ensure that deprecation warning for ‘N’ specifier in
Decimal format is not raised for cases where ‘N’ appears in
other places in the format specifier. Based on patch by Stefan
Krah.
- gh-70303: Return both files and directories from
pathlib.Path.glob() if a pattern ends with “**”. Previously only
directories were returned.
- gh-109653: Improve import time of importlib.metadata and
email.utils.
- gh-113280: Fix a leak of open socket in rare cases when error
occurred in ssl.SSLSocket creation.
- gh-77749: email.policy.EmailPolicy.fold() now always encodes
non-ASCII characters in headers if utf8 is false.
- gh-83383: Synchronization of the dbm.dumb database is now no-op
if there was no modification since opening or last
synchronization. The directory file for a newly created empty
dbm.dumb database is now created immediately after opening
instead of deferring this until synchronizing or closing.
- gh-91602: Add filter keyword-only parameter to
sqlite3.Connection.iterdump() for filtering database objects to
dump. Patch by Mariusz Felisiak.
- gh-112451: Prohibit subclassing pure-Python datetime.timezone.
This is consistent with C-extension implementation. Patch by
Mariusz Felisiak.
- gh-69893: Add the close() method for the iterator returned by
xml.etree.ElementTree.iterparse().
- gh-109653: Reduce the import time of threading module by ~50%.
Patch by Daniel Hollas.
- gh-114492: Make the result of termios.tcgetattr() reproducible
on Alpine Linux. Previously it could leave a random garbage in
some fields.
- gh-114315: Make threading.Lock a real class, not a factory
function. Add __new__ to _thread.lock type.
- gh-100414: Add dbm.sqlite3 as a backend to dbm, and make it the
new default dbm backend. Patch by Raymond Hettinger and Erlend
E. Aasland.
- gh-113267: Revert changes in gh-106584 which made calls of
TestResult methods startTest() and stopTest() unbalanced.
- gh-75128: Ignore an OSError in
asyncio.BaseEventLoop.create_server() when IPv6 is available but
the interface cannot actually support it.
- gh-114423: _DummyThread entries in threading._active are now
automatically removed when the related thread dies.
- gh-114257: Dismiss the FileNotFound error in
ctypes.util.find_library() and just return None on Linux.
- gh-114321: Expose more platform specific constants in the fcntl
module on Linux, macOS, FreeBSD and NetBSD.
- gh-114328: The tty.setcbreak() and new tty.cfmakecbreak() no
longer clears the terminal input ICRLF flag. This fixes a
regression introduced in 3.12 that no longer matched how OSes
define cbreak mode in their stty(1) manual pages.
- gh-114281: Remove type hints from Lib/asyncio/staggered.py. The
annotations in the typeshed project should be used instead.
- gh-101438: Avoid reference cycle in ElementTree.iterparse. The
iterator returned by ElementTree.iterparse may hold on to a file
descriptor. The reference cycle prevented prompt clean-up of the
file descriptor if the returned iterator was not exhausted.
- gh-114198: The signature for the __replace__ method on
dataclasses now has the first argument named self, rather than
obj.
- gh-104522: OSError raised when run a subprocess now only has
filename attribute set to cwd if the error was caused by a
failed attempt to change the current directory.
- gh-114149: Enum: correctly handle tuple subclasses in custom
__new__.
- gh-83648: Support deprecation of options, positional arguments
and subcommands in argparse.
- gh-114087: Speed up dataclasses.asdict up to 1.35x.
- gh-109534: Fix a reference leak in
asyncio.selector_events.BaseSelectorEventLoop when SSL
handshakes fail. Patch contributed by Jamie Phan.
- gh-79634: Accept path-like objects as patterns in
pathlib.Path.glob() and rglob().
- gh-112202: Ensure that a asyncio.Condition.notify() call does
not get lost if the awakened Task is simultaneously cancelled or
encounters any other error.
- gh-113951: Fix the behavior of tag_unbind() methods of
tkinter.Text and tkinter.Canvas classes with three arguments.
Previously, widget.tag_unbind(tag, sequence, funcid) destroyed
the current binding for sequence, leaving sequence unbound, and
deleted the funcid command. Now it removes only funcid from the
binding for sequence, keeping other commands, and deletes the
funcid command. It leaves sequence unbound only if funcid was
the last bound command.
- 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-113796: Add more validation checks in the csv.Dialect
constructor. ValueError is now raised if the same character is
used in different roles.
- gh-113732: Fix support of QUOTE_NOTNULL and QUOTE_STRINGS in
csv.reader().
- gh-113225: Speed up pathlib.Path.walk() by using
os.DirEntry.path where possible.
- gh-89039: When replace() method is called on a subclass of
datetime, date or time, properly call derived constructor.
Previously, only the base class’s constructor was called.
- Also, make sure to pass non-zero fold values when creating
subclasses in various methods. Previously, fold was silently
ignored.
- gh-112919: Speed-up datetime.datetime.replace(),
datetime.date.replace() and datetime.time.replace().
- gh-59013: Set breakpoint on the first executable line of the
function, instead of the line of function definition when the
user do break func using pdb
- gh-112343: Improve handling of pdb convenience variables to
avoid replacing string contents.
- gh-112240: Add option to calendar module CLI to specify the
weekday to start each week. Patch by Steven Ward.
- gh-111741: Recognise image/webp as a standard format in the
mimetypes module.
- gh-43457: Fix the tkinter widget method wm_attributes(). It now
accepts the attribute name without the minus prefix to get
window attributes and allows to specify attributes and values to
set as keyword arguments. Add new optional keyword argument
return_python_dict: calling
w.wm_attributes(return_python_dict=True) returns the attributes
as a dict instead of a tuple. Calling w.wm_attributes() now
returns a tuple instead of string if wantobjects was set to 0.
- gh-82626: Many functions now emit a warning if a boolean value
is passed as a file descriptor argument.
- gh-111051: Added check for file modification during debugging
with pdb
- gh-110345: Show the Tcl/Tk patchlevel (rather than version) in
tkinter._test().
- gh-38807: Fix race condition in trace. Instead of checking if a
directory exists and creating it, directly call os.makedirs()
with the kwarg exist_ok=True.
- gh-75705: Set unixfrom envelope in mailbox.mbox and
mailbox.MMDF.
- gh-106233: Fix stacklevel in InvalidTZPathWarning during
zoneinfo module import.
- gh-105102: Allow ctypes.Union to be nested in ctypes.Structure
when the system endianness is the opposite of the classes.
- gh-104282: Fix null pointer dereference in
lzma._decode_filter_properties() due to improper handling of BCJ
filters with properties of zero length. Patch by Radislav
Chugunov.
- gh-96471: Add queue.Queue termination with shutdown().
- gh-101599: Changed argparse flag options formatting to remove
redundancy.
- gh-85984: Add POSIX pseudo-terminal functions os.posix_openpt(),
os.grantpt(), os.unlockpt(), and os.ptsname().
- gh-102512: When os.fork() is called from a foreign thread (aka
_DummyThread), the type of the thread in a child process is
changed to _MainThread. Also changed its name and daemonic
status, it can be now joined.
- gh-88569: Add os.path.isreserved(), which identifies reserved
pathnames such as “NUL”, “AUX” and “CON”. This function is only
available on Windows.
- Deprecate pathlib.PurePath.is_reserved().
- bpo-38364: The inspect functions isgeneratorfunction,
iscoroutinefunction, isasyncgenfunction now support
functools.partialmethod wrapped functions the same way they
support functools.partial.
- Documentation
- gh-115233: Fix an example for LoggerAdapter in the Logging
Cookbook.
- gh-114123: Move the csv module docstring to the csv module
instead of reexporting it from the internal _csv module, and
remove __doc__ from csv.__all__.
- Move csv.__version__ to the csv module instead of reexporting it
from the internal _csv module, and remove __version__ from
csv.__all__. Test- s
- gh-114099: Added test exclusions required to run the test suite
on iOS.
- gh-105089: Fix
test.test_zipfile.test_core.TestWithDirectory.test_create_directory_with_write
test in AIX by doing a bitwise AND of 0xFFFF on mode , so that
it will be in sync with zinfo.external_attr Buil- d
- gh-115167: Avoid vendoring vcruntime140_threads.dll when
building with Visual Studio 2022 version 17.8.
- gh-113632: Promote WASI to a tier 2 platform and drop Emscripten
from tier 3 in configure.ac.
- gh-114099: configure and Makefile were refactored to accomodate
framework builds on Apple platforms other than macOS.
- gh-114875: Add getgrent() as a prerequisite for building the grp
module. Wind- ows
- 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.
- gh-109991: Update Windows build to use OpenSSL 3.0.13.
- gh-111239: Update Windows builds to use zlib v1.3.1.
- gh-100107: The py.exe launcher will no longer attempt to run the
Microsoft Store redirector when launching a script containing a
/usr/bin/env shebang
- gh-112984: Adds free-threaded binaries to Windows installer as
an optional component.
- gh-89240: Allows multiprocessing to create pools of greater than
62 processes.
- IDLE
- gh-96905: In idlelib code, stop redefining built-ins ‘dict’ and
‘object’.
- gh-103820: Revise IDLE bindings so that events from mouse button
4/5 on non-X11 windowing systems (i.e. Win32 and Aqua) are not
mistaken for scrolling.
- Tools/Demos
- gh-113516: Don’t set LDSHARED when building for WASI.
- gh-109991: Update GitHub CI workflows to use OpenSSL 3.0.13 and
multissltests to use 1.1.1w, 3.0.13, 3.1.5, and 3.2.1.
- gh-115015: Fix a bug in Argument Clinic that generated incorrect
code for methods with no parameters that use the METH_METHOD |
METH_FASTCALL | METH_KEYWORDS calling convention. Only the
positional parameter count was checked; any keyword argument
passed would be silently accepted.
- C API
- gh-111140: Adds PyLong_AsNativeBytes(), PyLong_FromNativeBytes()
and PyLong_FromUnsignedNativeBytes() functions.
- gh-114685: PyBuffer_FillInfo() now raises a SystemError if
called with PyBUF_READ or PyBUF_WRITE as flags. These flags
should only be used with the PyMemoryView_* C API.
- gh-114685: PyObject_GetBuffer() now raises a SystemError if
called with PyBUF_READ or PyBUF_WRITE as flags. These flags
should only be used with the PyMemoryView_* C API.
- gh-114626: Add PyCFunctionFast and PyCFunctionFastWithKeywords
typedefs (identical to the existing _PyCFunctionFast and
_PyCFunctionFastWithKeywords typedefs, just without a leading _
prefix).
- gh-114329: Add PyList_GetItemRef(), which is similar to
PyList_GetItem() but returns a strong reference instead of a
borrowed reference.
- gh-110850: Add PyTime C API:
* PyTime_t type.
* PyTime_MIN and PyTime_MAX constants.
* PyTime_AsSecondsDouble(), PyTime_Monotonic(), PyTime_PerfCounter(), and PyTime_Time() functions.
- gh-112066: Add PyDict_SetDefaultRef(): insert a key and value
into a dictionary if the key is not already present. This is
similar to dict.setdefault(), but returns an integer value
indicating if the key was already present. It is also similar to
PyDict_SetDefault(), but returns a strong reference instead of a
borrowed reference.
* Tue Feb 20 2024 Matej Cepl <mcepl@cepl.eu>
- Add gh115133-XMLPullParserTest-fail.patch to make
Python building with the current libexpat 2.6.0
(gh#python/cpython#115133).
- Switch to %%autopatch. Let’s try it as an experiment, and if we
need conditional patch, we should put condition inside of it.
- Remove double definition of /usr/bin/idle%%{version} in
%%files.
* Thu Feb 08 2024 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.13.0a3
- Security
- gh-113659: Skip .pth files with names starting with a dot or
hidden file attribute.
- gh-112302: Created a Software Bill-of-Materials document and
tooling for tracking dependencies.
- Core and Builtins
- gh-107901: Compiler duplicates basic blocks that have an eval
breaker check, no line number, and multiple predecessors.
- gh-107901: A jump leaving an exception handler back to normal
code no longer checks the eval breaker.
- gh-113655: Set the C recursion limit to 4000 on Windows, and
10000 on Linux/OSX. This seems to be near the sweet spot to
maintain safety, but not compromise backwards compatibility.
- gh-113710: Add typed stack effects to the interpreter DSL, along
with various instruction annotations.
- gh-77046: On Windows, file descriptors wrapping Windows handles
are now created non inheritable by default (PEP 446). Patch by
Zackery Spytz and Victor Stinner.
- gh-113853: Guarantee that all executors make progress. This then
guarantees that tier 2 execution always makes progress.
- gh-113753: Fix an issue where the finalizer of PyAsyncGenASend
objects might not be called if they were allocated from a free
list.
- gh-107901: Compiler changed so that synthetic jumps which are
not at loop end no longer check the eval breaker.
- gh-113703: Fix a regression in the codeop module that was
causing it to incorrectly identify incomplete f-strings. Patch
by Pablo Galindo
- gh-89811: Check for a valid tp_version_tag before performing
bytecode specializations that rely on this value being usable.
- gh-111488: Changed error message in case of no ‘in’ keyword
after ‘for’ in list comprehensions
- gh-113657: Fix an issue that caused important instruction
pointer updates to be optimized out of tier two traces.
- gh-113603: Fixed bug where a redundant NOP is not removed,
causing an assertion to fail in the compiler in debug mode.
- gh-113602: Fix an error that was causing the parser to try to
overwrite existing errors and crashing in the process. Patch by
Pablo Galindo
- gh-113486: No longer issue spurious PY_UNWIND events for
optimized calls to classes.
- gh-113297: Fix segfault in the compiler on with statement with
19 context managers.
- gh-113212: Improve super error messages.
- gh-111375: Only use NULL in the exception stack to indicate an
exception was handled. Patch by Carey Metcalfe.
- gh-112215: Increase the C recursion limit by a factor of 3 for
non-debug builds, except for webassembly and s390 platforms
which are unchanged. This mitigates some regressions in 3.12
with deep recursion mixing builtin (C) and Python code.
- gh-113054: Fixed bug where a redundant NOP is not removed,
causing an assertion to fail in the compiler in debug mode.
- gh-106905: Use per AST-parser state rather than global state to
track recursion depth within the AST parser to prevent potential
race condition due to simultaneous parsing.
- The issue primarily showed up in 3.11 by multithreaded users of
ast.parse(). In 3.12 a change to when garbage collection can be
triggered prevented the race condition from occurring.
- gh-108866: Change the API and contract of _PyExecutorObject to
return the next_instr pointer, instead of the frame, and to
always execute at least one instruction.
- gh-90350: Optimize builtin functions min() and max().
- gh-112943: Correctly compute end column offsets for multiline
tokens in the tokenize module. Patch by Pablo Galindo
- gh-112125: Fix None.__ne__(None) returning NotImplemented
instead of False
- gh-74616: input() now raises a ValueError when output on the
terminal if the prompt contains embedded null characters instead
of silently truncating it.
- gh-112716: Fix SystemError in the import statement and in
__reduce__() methods of builtin types when __builtins__ is not a
dict.
- gh-112730: Use color to highlight error locations in tracebacks.
Patch by Pablo Galindo
- gh-112625: Fixes a bug where a bytearray object could be cleared
while iterating over an argument in the bytearray.join() method
that could result in reading memory after it was freed.
- gh-112660: Do not clear unexpected errors during formatting
error messages for ImportError and AttributeError for modules.
- gh-105967: Workaround a bug in Apple’s macOS platform zlib
library where zlib.crc32() and binascii.crc32() could produce
incorrect results on multi-gigabyte inputs. Including when using
zipfile on zips containing large data.
- gh-95754: Provide a better error message when accessing invalid
attributes on partially initialized modules. The origin of the
module being accessed is now included in the message to help
with the common issue of shadowing other modules.
- gh-112217: Add check for the type of __cause__ returned from
calling the type T in raise from T.
- gh-111058: Change coro.cr_frame/gen.gi_frame to return None
after the coroutine/generator has been closed. This fixes a bug
where getcoroutinestate() and getgeneratorstate() return the
wrong state for a closed coroutine/generator.
- gh-112388: Fix an error that was causing the parser to try to
overwrite tokenizer errors. Patch by pablo Galindo
- gh-112387: Fix error positions for decoded strings with
backwards tokenize errors. Patch by Pablo Galindo
- gh-99606: Make code generated for an empty f-string identical to
the code of an empty normal string.
- gh-112367: Avoid undefined behaviour when using the perf
trampolines by not freeing the code arenas until shutdown. Patch
by Pablo Galindo
- gh-112320: The Tier 2 translator now tracks the confidence level
for staying “on trace” (i.e. not exiting back to the Tier 1
interpreter) for branch instructions based on the number of bits
set in the branch “counter”. Trace translation ends when the
confidence drops below 1/3rd.
- gh-109598: PyComplex_RealAsDouble()/PyComplex_ImagAsDouble() now
tries to convert an object to a complex instance using its
__complex__() method before falling back to the __float__()
method. Patch by Sergey B Kirpichev.
- gh-94606: Fix UnicodeEncodeError when
email.message.get_payload() reads a message with a Unicode
surrogate character and the message content is not well-formed
for surrogateescape encoding. Patch by Sidney Markowitz.
- bpo-21861: Use the object’s actual class name in
_io.FileIO.__repr__(), _io._WindowsConsoleIO() and
_io.TextIOWrapper.__repr__(), to make these methods subclass
friendly.
- bpo-45369: Remove LibreSSL workarounds as per PEP 644.
- bpo-34392: Added sys._is_interned(). Libr- ary
- gh-114077: Fix possible OverflowError in
socket.socket.sendfile() when pass count larger than 2 GiB on
32-bit platform.
- gh-111803: plistlib now supports loading more deeply nested
lists in binary format.
- gh-114014: Fixed a bug in fractions.Fraction where an invalid
string using d in the decimals part creates a different error
compared to other invalid letters/characters. Patch by Jeremiah
Gabriel Pascual.
- gh-108364: sqlite3.Connection.iterdump() now ensures that
foreign key support is disabled before dumping the database
schema, if there is any foreign key violation. Patch by Erlend
E. Aasland and Mariusz Felisiak.
- gh-113971: The zipfile.ZipInfo previously protected
._compresslevel attribute has been made public as
.compress_level with the old _compresslevel name remaining
available as a property to retain compatibility.
- gh-113877: Fix tkinter method winfo_pathname() on 64-bit
Windows.
- gh-113868: Added mmap.MAP_NORESERVE, mmap.MAP_NOEXTEND,
mmap.MAP_HASSEMAPHORE, mmap.MAP_NOCACHE, mmap.MAP_JIT,
mmap.MAP_RESILIENT_CODESIGN, mmap.MAP_RESILIENT_MEDIA,
mmap.MAP_32BIT, mmap.MAP_TRANSLATED_ALLOW_EXECUTE,
mmap.MAP_UNIX03 and mmap.MAP_TPRO. All of them are mmap(2) flags
on macOS.
- gh-113848: asyncio.TaskGroup() and asyncio.timeout() context
managers now handle CancelledError subclasses as well as exact
CancelledError.
- gh-113661: unittest runner: Don’t exit 5 if tests were skipped.
The intention of exiting 5 was to detect issues where the test
suite wasn’t discovered at all. If we skipped tests, it was
correctly discovered.
- gh-96037: Insert TimeoutError in the context of the exception
that was raised during exiting an expired asyncio.timeout()
block.
- gh-113781: Silence unraisable AttributeError when warnings are
emitted during Python finalization.
- gh-113238: Add Anchor to importlib.resources (in order for the
code to comply with the documentation)
- gh-111693: asyncio.Condition.wait() now re-raises the same
CancelledError instance that may have caused it to be
interrupted. Fixed race condition in asyncio.Semaphore.aquire()
when interrupted with a CancelledError.
- gh-113791: Add CLOCK_MONOTONIC_RAW_APPROX and
CLOCK_UPTIME_RAW_APPROX to time on macOS. These are clocks
available on macOS 10.12 or later.
- gh-112932: Restore the ability for zipfile to extractall from
zip files with a “/” directory entry in them as is commonly
added to zips by some wiki or bug tracker data exporters.
- gh-113568: Raise deprecation warnings from pathlib.PurePath and
not its private base class PurePathBase.
- gh-113594: Fix UnicodeEncodeError in email when re-fold lines
that contain unknown-8bit encoded part followed by
non-unknown-8bit encoded part.
- gh-113538: In asyncio.StreamReaderProtocol.connection_made(),
there is callback that logs an error if the task wrapping the
“connected callback” fails. This callback would itself fail if
the task was cancelled. Prevent this by checking whether the
task was cancelled first. If so, close the transport but don’t
log an error.
- gh-113626: Add support for the allow_code argument in the
marshal module. Passing allow_code=False prevents serialization
and de-serialization of code objects which is incompatible
between Python versions.
- gh-85567: Fix resource warnings for unclosed files in pickle and
pickletools command line interfaces.
- gh-113537: Support loads str in plistlib.loads().
- gh-89850: Add default implementations of
pickle.Pickler.persistent_id() and
pickle.Unpickler.persistent_load() methods in the C
implementation. Calling super().persistent_id() and
super().persistent_load() in subclasses of the C implementation
of pickle.Pickler and pickle.Unpickler classes no longer causes
infinite recursion.
- gh-113569: Indicate if there were no actual calls in unittest
assert_has_calls() failure.
- gh-101225: Increase the backlog for
multiprocessing.connection.Listener objects created by
multiprocessing.manager and multiprocessing.resource_sharer to
significantly reduce the risk of getting a connection refused
error when creating a multiprocessing.connection.Connection to
them.
- gh-113568: Raise audit events from pathlib.Path and not its
private base class PathBase.
- gh-113543: Make sure that webbrowser.MacOSXOSAScript sends
webbrowser.open audit event.
- gh-113028: When a second reference to a string appears in the
input to pickle, and the Python implementation is in use, we are
guaranteed that a single copy gets pickled and a single object
is shared when reloaded. Previously, in protocol 0, when a
string contained certain characters (e.g. newline) it resulted
in duplicate objects.
- gh-113421: Fix multiprocessing logger for %(filename)s.
- gh-111784: Fix segfaults in the _elementtree module. Fix first
segfault during deallocation of _elementtree.XMLParser instances
by keeping strong reference to pyexpat module in module state
for capsule lifetime. Fix second segfault which happens in the
same deallocation process by keeping strong reference to
_elementtree module in XMLParser structure for _elementtree
module lifetime.
- gh-113407: Fix import of unittest.mock when CPython is built
without docstrings.
- gh-113320: Fix regression in Python 3.12 where Protocol classes
that were not marked as runtime-checkable would be unnecessarily
introspected, potentially causing exceptions to be raised if the
protocol had problematic members. Patch by Alex Waygood.
- gh-53502: Add a new option aware_datetime in plistlib to loads
or dumps aware datetime.
- gh-113358: Fix rendering tracebacks with exceptions with a
broken __getattr__
- gh-113214: Fix an AttributeError during asyncio SSL protocol
aborts in SSL-over-SSL scenarios.
- gh-113246: Update bundled pip to 23.3.2.
- gh-87264: Fixed tarfile list() method to show file type.
- gh-112182: asyncio.futures.Future.set_exception() now transforms
StopIteration into RuntimeError instead of hanging or other
misbehavior. Patch contributed by Jamie Phan.
- gh-113225: Speed up pathlib.Path.glob() by using
os.DirEntry.path where possible.
- gh-113149: Improve error message when a JSON array or object
contains a trailing comma. Patch by Carson Radtke.
- gh-113117: The subprocess module can now use the
os.posix_spawn() function with close_fds=True on platforms where
posix_spawn_file_actions_addclosefrom_np is available. Patch by
Jakub Kulik.
- gh-113199: Make http.client.HTTPResponse.read1 and
http.client.HTTPResponse.readline close IO after reading all
data when content length is known. Patch by Illia Volochii.
- gh-113191: Add support of os.fchmod() and a file descriptor in
os.chmod() on Windows.
- gh-113188: Fix shutil.copymode() and shutil.copystat() on
Windows. Previously they worked differenly if dst is a symbolic
link: they modified the permission bits of dst itself rather
than the file it points to if follow_symlinks is true or src is
not a symbolic link, and did not modify the permission bits if
follow_symlinks is false and src is a symbolic link.
- gh-113119: os.posix_spawn() now accepts env=None, which makes
the newly spawned process use the current process environment.
Patch by Jakub Kulik.
- gh-113202: Add a strict option to batched() in the itertools
module.
- gh-61648: Detect line numbers of properties in doctests.
- gh-113175: Sync with importlib_metadata 7.0, including improved
type annotations, fixed issue with symlinked packages in
package_distributions, added EntryPoints.__repr__, introduced
the diagnose script, added Distribution.origin property, and
removed deprecated EntryPoint access by numeric index (tuple
behavior).
- gh-59616: Add support of os.lchmod() and the follow_symlinks
argument in os.chmod() on Windows. Note that the default value
of follow_symlinks in os.lchmod() is False on Windows.
- gh-112559: signal.signal() and signal.getsignal() no longer call
repr on callable handlers. asyncio.run() and
asyncio.Runner.run() no longer call repr on the task results.
Patch by Yilei Yang.
- gh-112962: dis module functions add cache information to the
Instruction instance rather than creating fake Instruction
instances to represent the cache entries.
- gh-112989: Reduce overhead to connect sockets with asyncio
SelectorEventLoop.
- gh-112970: Use closefrom() on Linux where available (e.g.
glibc-2.34), rather than only FreeBSD.
- gh-110190: Fix ctypes structs with array on PPC64LE platform by
setting MAX_STRUCT_SIZE to 64 in stgdict. Patch by Diego Russo.
- gh-112540: The statistics.geometric_mean() function now returns
zero for datasets containing a zero. Formerly, it would raise an
exception.
- gh-87286: Added LOG_FTP, LOG_NETINFO, LOG_REMOTEAUTH,
LOG_INSTALL, LOG_RAS, and LOG_LAUNCHD tot the syslog module, all
of them constants on used on macOS.
- gh-112800: Fix asyncio SubprocessTransport.close() not to throw
PermissionError when used with setuid executables.
- gh-51944: Add the following constants to the termios module.
These values are present in macOS system headers: ALTWERASE,
B14400, B28800, B7200, B76800, CCAR_OFLOW, CCTS_OFLOW,
CDSR_OFLOW, CDTR_IFLOW, CIGNORE, CRTS_IFLOW, EXTPROC, IUTF8,
MDMBUF, NL2, NL3, NOKERNINFO, ONOEOT, OXTABS, VDSUSP, VSTATUS.
- gh-79325: Fix an infinite recursion error in
tempfile.TemporaryDirectory() cleanup on Windows.
- gh-94692: shutil.rmtree() now only catches OSError exceptions.
Previously a symlink attack resistant version of shutil.rmtree()
could ignore or pass to the error handler arbitrary exception
when invalid arguments were provided.
- gh-112736: The use of del-safe symbols in subprocess was
refactored to allow for use in cross-platform build
environments.
- gh-112727: Speed up pathlib.Path.absolute(). Patch by Barney
Gale.
- gh-74690: Speedup issubclass() checks against simple
runtime-checkable protocols by around 6%. Patch by Alex Waygood.
- gh-74690: Speedup isinstance() checks by roughly 20% for
runtime-checkable protocols that only have one callable member.
Speedup issubclass() checks for these protocols by roughly 10%.
Patch by Alex Waygood.
- gh-112645: Remove deprecation error on passing onerror to
shutil.rmtree().
- gh-112640: Add kwdefaults parameter to types.FunctionType to set
default keyword argument values.
- gh-112622: Ensure name parameter is passed to event loop in
asyncio.create_task().
- gh-112618: Fix a caching bug relating to typing.Annotated.
Annotated[str, True] is no longer identical to Annotated[str,
1].
- gh-112334: Fixed a performance regression in 3.12’s subprocess
on Linux where it would no longer use the fast-path vfork()
system call when it could have due to a logic bug, instead
falling back to the safe but slower fork().
- Also fixed a second 3.12.0 potential security bug. If a value of
extra_groups=[] was passed to subprocess.Popen or related APIs,
the underlying setgroups(0, NULL) system call to clear the
groups list would not be made in the child process prior to
exec().
- This was identified via code inspection in the process of fixing
the first bug.
- gh-110190: Fix ctypes structs with array on Arm platform by
setting MAX_STRUCT_SIZE to 32 in stgdict. Patch by Diego Russo.
- gh-81194: Fix a crash in socket.if_indextoname() with specific
value (UINT_MAX). Fix an integer overflow in
socket.if_indextoname() on 64-bit non-Windows platforms.
- gh-112578: Fix a spurious RuntimeWarning when executing the
zipfile module.
- gh-112516: Update the bundled copy of pip to version 23.3.1.
- gh-112510: Add readline.backend for the backend readline uses
(editline or readline)
- gh-112328: [Enum] Make EnumDict, EnumDict.member_names,
EnumType._add_alias_ and EnumType._add_value_alias_ public.
- gh-112509: Fix edge cases that could cause a key to be present
in both the __required_keys__ and __optional_keys__ attributes
of a typing.TypedDict. Patch by Jelle Zijlstra.
- gh-101336: Add keep_alive keyword parameter for
AbstractEventLoop.create_server() and
BaseEventLoop.create_server().
- gh-63284: Added support for TLS-PSK (pre-shared key) mode to the
ssl module.
- gh-112414: Fix regression in Python 3.12 where calling repr() on
a module that had been imported using a custom loader could fail
with AttributeError. Patch by Alex Waygood.
- gh-112358: Revert change to struct.Struct initialization that
broke some cases of subclassing.
- gh-112405: Optimize pathlib.PurePath.relative_to(). Patch by
Alex Waygood.
- gh-94722: Fix bug where comparison between instances of DocTest
fails if one of them has None as its lineno.
- gh-112361: Speed up a small handful of pathlib methods by
removing some temporary objects.
- gh-112345: Improve error message when trying to call
issubclass() against a typing.Protocol that has non-method
members. Patch by Randolf Scholz.
- gh-112137: Change dis output to display no-lineno as “–” instead
of “None”.
- gh-112332: Deprecate the exc_type field of
traceback.TracebackException. Add exc_type_str to replace it.
- gh-81620: Add extra tests for random.binomialvariate()
- gh-112292: Fix a crash in readline when imported from a sub
interpreter. Patch by Anthony Shaw
- gh-77621: Slightly improve the import time of the pathlib module
by deferring some imports. Patch by Barney Gale.
- gh-112137: Change dis output to display logical labels for jump
targets instead of offsets.
- gh-112139: Add Signature.format() to format signatures to string
with extra options. And use it in pydoc to render more readable
signatures that have new lines between parameters.
- gh-112105: Make readline.set_completer_delims() work with
libedit
- gh-106922: Display multiple lines with traceback when errors
span multiple lines.
- gh-111874: When creating a typing.NamedTuple class, ensure
__set_name__() is called on all objects that define __set_name__
and exist in the values of the NamedTuple class’s class
dictionary. Patch by Alex Waygood.
- gh-68166: Add support of the “vsapi” element type in
tkinter.ttk.Style.element_create().
- gh-110275: Named tuple’s methods _replace() and __replace__()
now raise TypeError instead of ValueError for invalid keyword
arguments.
- gh-99367: Do not mangle sys.path[0] in pdb if safe_path is set
- gh-111615: Fix a regression caused by a fix to gh-93162 whereby
you couldn’t configure a QueueHandler without specifying
handlers.
- gh-75666: Fix the behavior of tkinter widget’s unbind() method
with two arguments. Previously, widget.unbind(sequence, funcid)
destroyed the current binding for sequence, leaving sequence
unbound, and deleted the funcid command. Now it removes only
funcid from the binding for sequence, keeping other commands,
and deletes the funcid command. It leaves sequence unbound only
if funcid was the last bound command.
- gh-67790: Implement basic formatting support (minimum width,
alignment, fill) for fractions.Fraction.
- gh-111049: Fix crash during garbage collection of the io.BytesIO
buffer object.
- gh-102980: Redirect the output of interact command of pdb to the
same channel as the debugger. Add tests and improve docs.
- gh-102988: email.utils.getaddresses() and
email.utils.parseaddr() now return ('', '') 2-tuples in more
situations where invalid email addresses are encountered instead
of potentially inaccurate values. Add optional strict parameter
to these two functions: use strict=False to get the old
behavior, accept malformed inputs. getattr(email.utils,
'supports_strict_parsing', False) can be use to check if the
strict paramater is available. Patch by Thomas Dwyer and Victor
Stinner to improve the CVE-2023-27043 fix (bsc#1210638).
- gh-52161: cmd.Cmd.do_help() now cleans docstrings with
inspect.cleandoc() before writing them. Patch by Filip
Łapkiewicz.
- gh-82300: Add track parameter to
multiprocessing.shared_memory.SharedMemory that allows using
shared memory blocks without having to register with the POSIX
resource tracker that automatically releases them upon process
exit.
- gh-110109: Add private pathlib._PurePathBase class: a base class
for pathlib.PurePath that omits certain magic methods. It may be
made public (along with _PathBase) in future.
- gh-109858: Protect zipfile from “quoted-overlap” zipbomb. It now
raises BadZipFile when try to read an entry that overlaps with
other entry or central directory.
- gh-109786: Fix possible reference leaks and crash when re-enter
the __next__() method of itertools.pairwise.
- gh-91539: Small (10 - 20%) and trivial performance improvement
of urrlib.request.getproxies_environment(), typically useful
when there are many environment variables to go over.
- gh-103363: Add follow_symlinks keyword-only argument to
pathlib.Path.owner() and group(), defaulting to True.
- gh-102130: Support tab completion in cmd for editline.
- gh-99437: runpy.run_path() now decodes path-like objects, making
sure __file__ and sys.argv[0] of the module being run are always
strings.
- gh-104003: Add warnings.deprecated(), a decorator to mark
deprecated functions to static type checkers and to warn on
usage of deprecated classes and functions. See PEP 702. Patch by
Jelle Zijlstra.
- gh-103708: Make hardcoded python name, a configurable parameter
so that different implementations of python can override it
instead of making huge diffs in sysconfig.py
- gh-66515: mailbox.MH now supports folders that do not contain a
.mh_sequences file (e.g. Claws Mail IMAP-cache folders). Patch
by Serhiy Storchaka.
- gh-83162: Renamed re.error to PatternError for clarity, and kept
re.error for backward compatibility. Patch by Matthias
Bussonnier and Adam Chhina.
- gh-91133: Fix a bug in tempfile.TemporaryDirectory cleanup,
which now no longer dereferences symlinks when working around
file system permission errors.
- bpo-43153: On Windows, tempfile.TemporaryDirectory previously
masked a PermissionError with NotADirectoryError during
directory cleanup. It now correctly raises PermissionError if
errors are not ignored. Patch by Andrei Kulakov and Ken Jin.
- bpo-32731: getpass.getuser() now raises OSError for all failures
rather than ImportError on systems lacking the pwd module or
KeyError if the password database is empty.
- bpo-34321: mmap.mmap now has a trackfd parameter on Unix; if it
is False, the file descriptor specified by fileno will not be
duplicated.
- bpo-35332: The shutil.rmtree() function now ignores errors when
calling os.close() when ignore_errors is True, and os.close() no
longer retried after error.
- bpo-35928: io.TextIOWrapper now correctly handles the decoding
buffer after read() and write().
- bpo-26791: shutil.move() now moves a symlink into a directory
when that directory is the target of the symlink. This provides
the same behavior as the mv shell command. The previous behavior
raised an exception. Patch by Jeffrey Kintscher.
- bpo-41422: Fixed memory leaks of pickle.Pickler and
pickle.Unpickler involving cyclic references via the internal
memo mapping.
- bpo-19821: The pydoc.ispackage() function has been deprecated.
- bpo-40262: The ssl.SSLSocket.recv_into() method no longer
requires the buffer argument to implement __len__ and supports
buffers with arbitrary item size.
- bpo-39912: warnings.filterwarnings() and warnings.simplefilter()
now raise appropriate exceptions instead of AssertionError.
Patch contributed by Rémi Lapeyre.
- bpo-37260: Fixed a race condition in shutil.rmtree() in which
directory entries removed by another process or thread while
shutil.rmtree() is running can cause it to raise
FileNotFoundError. Patch by Jeffrey Kintscher.
- bpo-36959: Fix some error messages for invalid ISO format string
combinations in strptime() that referred to directives not
contained in the format string. Patch by Gordon P. Hemsley.
- bpo-18060: Fixed a class inheritance issue that can cause
segfaults when deriving two or more levels of subclasses from a
base class of Structure or Union.
- bpo-29779: Add a new PYTHON_HISTORY environment variable to set
the location of a .python_history file.
- bpo-21360: mailbox.Maildir now ignores files with a leading dot.
- Documentation
- gh-111699: Relocate smtpd deprecation notice to its own section
rather than under locale in What’s New in Python 3.12 document
- gh-110746: Improved markup for valid options/values for methods
ttk.treeview.column and ttk.treeview.heading, and for Layouts.
- gh-95649: Document that the asyncio module contains code taken
from v0.16.0 of the uvloop project, as well as the required MIT
licensing information.
- Tests
- gh-111798: Disable test_super_deep() from test_call under
pydebug builds on WASI; the stack depth is too small to make the
test useful.
- gh-111801: Lower the recursion limit in test_isinstance for
test_infinitely_many_bases(). This prevents a stack overflow on
a pydebug build of WASI.
- gh-111802: Specify a low recursion depth for test_bad_getattr()
in test.pickletester to avoid exhausting the stack under a
pydebug build for WASI.
- gh-44626: Fix os.path.isabs() incorrectly returning True when
given a path that starts with exactly one (back)slash on
Windows.
- Fix pathlib.PureWindowsPath.is_absolute() incorrectly returning
False for some paths beginning with two (back)slashes.
- gh-113633: Use module state for the _testcapi extension module.
- gh-109980: Fix test_tarfile_vs_tar in test_shutil for macOS,
where system tar can include more information in the archive
than shutil.make_archive.
- gh-112769: The tests now correctly compare zlib version when
zlib.ZLIB_RUNTIME_VERSION contains non-integer suffixes. For
example zlib-ng defines the version as 1.3.0.zlib-ng.
- gh-112334: Adds a regression test to verify that vfork() is used
when expected by subprocess on vfork enabled POSIX systems
(Linux).
- gh-108927: Fixed order dependence in running tests in the same
process when a test that has submodules (e.g. test_importlib)
follows a test that imports its submodule (e.g.
test_importlib.util) and precedes a test (e.g. test_unittest or
test_compileall) that uses that submodule.
- bpo-40648: Test modes that file can get with chmod() on Windows.
- Build
- gh-114013: Fix Tools/wasm/wasi.py to not include the path to
python.wasm as part of HOSTRUNNER. The environment variable is
meant to specify how to run the WASI host only, having
python.wasm and relevant flags appended to the HOSTRUNNER. This
fixes make test work.
- gh-113258: Changed the Windows build to write out generated
frozen modules into the build tree instead of the source tree.
- gh-112305: Fixed the check-clean-src step performed on out of
tree builds to detect errant $(srcdir)/Python/frozen_modules/*.h
files and recommend appropriate source tree cleanup steps to get
a working build again.
- gh-112536: Add support for thread sanitizer (TSAN)
- gh-112867: Fix the build for the case that
WITH_PYMALLOC_RADIX_TREE=0 set.
- gh-103065: Introduce Tools/wasm/wasi.py to simplify doing a WASI
build.
- bpo-11102: The os.major(), os.makedev(), and os.minor()
functions are now available on HP-UX v3.
- bpo-36351: Do not set ipv6type when cross-compiling.
- IDLE
- gh-72284: Improve the lists of features, editor key bindings,
and shell key bingings in the IDLE doc.
- gh-113903: Fix rare failure of test.test_idle, in
test_configdialog.
- gh-113729: Fix the “Help -> IDLE Doc” menu bug in 3.11.7 and
3.12.1.
- gh-113269: Fix test_editor hang on macOS Catalina.
- gh-112898: Fix processing unsaved files when quitting IDLE on
macOS.
- bpo-13586: Enter the selected text when opening the “Replace”
dialog.
- C API
- gh-106560: Fix redundant declarations in the public C API.
Declare PyBool_Type, PyLong_Type and PySys_Audit() only once.
Patch by Victor Stinner.
- gh-112438: Fix support of format units “es”, “et”, “es#”, and
“et#” in nested tuples in PyArg_ParseTuple()-like functions.
- gh-111545: Add Py_HashPointer() function to hash a pointer.
Patch by Victor Stinner.
- gh-65210: Change the declaration of the keywords parameter of
PyArg_ParseTupleAndKeywords() and
PyArg_VaParseTupleAndKeywords() for better compatibility with
C++.
- Refresh all patches
- F00251-change-user-install-location.patch
- bpo-31046_ensurepip_honours_prefix.patch
- fix_configure_rst.patch
- no-skipif-doctests.patch
- python-3.3.0b1-fix_date_time_compiler.patch
- python-3.3.0b1-localpath.patch
- python-3.3.0b1-test-posix_fadvise.patch
- skip-test_pyobject_freed_is_freed.patch
- subprocess-raise-timeout.patch
* Sat Nov 25 2023 Matej Cepl <mcepl@cepl.eu>
- Update to 3.13.0a2:
Python 3.13.0 alpha 2¶
- Core and Builtins:
- Don’t include comments in f-string debug expressions. Patch
by Pablo Galindo
- Slightly optimize the Tier 2 (uop) interpreter by only
loading oparg and operand when needed. Also double the
trace size limit again, to 512 this time.
- Change docstrings of __dict__ and __weakref__.
- Lower the max parser stack depth to 1000 under WASI debug
builds.
- When Python is built in debug mode, set the C recursion
limit to 500 instead of 1500. A debug build is likely built
with low optimization level which implies higher stack
memory usage than a release build. Patch by Victor Stinner.
- Enable translating unspecialized FOR_ITER to Tier 2.
- Make hashlib related modules thread-safe without the GIL
- Deprecate assignment to a function’s __code__ field when
the new code object is of a mismatched type (e.g., from a
generator to a plain function).
- Raise exception if frame.clear() is called on a suspended
frame.
- Implement native thread ids for GNU KFreeBSD.
- Use exponential backoff to reduce the number of failed tier
2 optimization attempts by over 99%.
- Joining a thread now ensures the underlying OS thread has
exited. This is required for safer fork() in multi-threaded
processes.
- Make sure that tier 2 traces are de-optimized if the code
is instrumented
- Specialize slot loads and stores for _Py_T_OBJECT as well
as Py_T_OBJECT_EX
- Speed up BaseExceptionGroup.derive(),
BaseExceptionGroup.subgroup(), and
BaseExceptionGroup.split() by changing how they parse
passed arguments.
- Fix runtime crash when some error happens in opcode
LOAD_FROM_DICT_OR_DEREF.
- Add support for sharing tuples between interpreters using
the cross-interpreter API. Patch by Anthony Shaw.
- The oparg of YIELD_VALUE is now 1 if the instruction
is part of a yield-from or await, and 0 otherwise. The
SUSPENDED frame state is now split into SUSPENDED and
SUSPENDED_YIELD_FROM. This simplifies the code in
_PyGen_yf.
- Merge the Tier 1 (bytecode) and Tier 2 (micro-ops)
interpreters together, moving the Tier 2 interpreter
loop and switch into _PyEval_EvalFrameDefault() in
Python/ceval.c. The Python/executor.c file is gone. Also
the TIER_ONE and TIER_TWO macros are now handled by the
code generator. Beware! This changes the environment
variables to enable micro-ops and their debugging to
PYTHON_UOPS and PYTHON_LLTRACE.
- Speed up Traceback object creation by lazily compute the
line number. Patch by Pablo Galindo
- Allow type comments in parenthesized with statements
- Add support for sharing floats between interpreters using
the cross-interpreter API. Patch by Anthony Shaw.
- Add support for sharing of True and False between
interpreters using the cross-interpreter API. Patch by
Anthony Shaw.
- Fix a bug where iso2022_jp_3 and iso2022_jp_2004 codecs
read out of bounds
- Fix an issue in the codeop that was causing SyntaxError
exceptions raised in the presence of invalid syntax to not
contain precise error messages. Patch by Pablo Galindo
- Fix a bug that was causing SyntaxWarning to appear twice
when parsing if invalid syntax is encountered later. Patch
by Pablo galindo
- Added a new environment variable PYTHON_FROZEN_MODULES. It
determines whether or not frozen modules are ignored by
the import machinery, equivalent of the -X frozen_modules
command-line option.
- Remove oparg from YIELD_VALUE. Change oparg of RESUME to
include information about the except-depth. These changes
make it possible to simplify the code in generator close.
- Fix a regression that prevented jumping across is None and
is not None when debugging. Patch by Savannah Ostrowski.
- Show source lines in tracebacks when using the -c option
when running Python. Patch by Pablo Galindo
- Fix a bug where a global declaration in an except block is
rejected when the global is used in the else block.
- Fix error messages for indented blocks with functions
and classes with generic type parameters. Patch by Pablo
Galindo
- Remove unnecessary instruction pointer updates before
returning from frames.
- Correctly display the traceback for MemoryError exceptions
using the traceback module. Patch by Pablo Galindo
- Fixed crash due to improperly initialized static
MemoryError in subinterpreter.
- Return NULL for PyTrace_RETURN events caused by an
exception
- Fix argument parsing by _PyArg_UnpackKeywordsWithVararg
for functions defining pos-or-keyword, vararg, and kw-only
parameters.
- Replace prev_instr on the interpreter frame by instr_ptr
which points to the beginning of the instruction that
is currently executing (or will execute once the frame
resumes).
- Allow the repl to show source code and complete
tracebacks. Patch by Pablo Galindo
- Add PYTHON_PRESITE=package.module to import a module
early in the interpreter lifecycle before site.py is
executed. Python needs to be built in debug mode for this
option to exist.
- Implement biased reference counting in --disable-gil
builds.
- Fix regression in Python 3.12 where
types.CodeType.replace() would produce a broken code object
if called on a module or class code object that contains a
comprehension. Patch by Jelle Zijlstra.
- Removed chained classmethod descriptors (introduced in
bpo-19072). This can no longer be used to wrap other
descriptors such as property. The core design of this
feature was flawed and caused a number of downstream
problems. To “pass-through” a classmethod, consider using
the __wrapped__ attribute that was added in Python 3.10.
- Use local events for opcode tracing
- Add mimalloc memory allocator support.
- When PyConfig.stdlib_dir is explicitly set, it’s now
respected and won’t be overridden by PyConfig.home.
- Fix incorrect SystemError about AST constructor recursion
depth mismatch.
- Improve error message for unterminated strings with
escapes.
- Improved error messages for elif/else statements not
matching any valid statements. Patch by Jeremiah Vivian.
- Library
- Fix SystemError in the TextIOWrapper constructor with
non-encodable “errors” argument in non-debug mode.
- Added the NI_IDN constant to the socket module when present
in C at build time for use with socket.getnameinfo().
- Issue warning message instead of having RuntimeError be
displayed when event loop has already been closed at
StreamWriter.__del__().
- Fix crashes in io.TextIOWrapper.reconfigure() when pass
invalid arguments, e.g. non-string encoding.
- curses: restore wide character support (including
curses.unget_wch() and get_wch()) on macOS, which was
unavailable due to a regression in Python 3.12.
- contextlib.suppress now supports suppressing exceptions
raised as part of a BaseExceptionGroup, in addition to the
recent support for ExceptionGroup.
- The mmap.mmap class now has an seekable() method that
can be used where it requires a file-like object with
seekable and the seek() method return the new absolute
position. Patch by Donghee Na.
- Remove posix.fallocate() under WASI as the underlying
posix_fallocate() is not available in WASI preview2.
- Fix truncating arguments on an embedded null character in
os.putenv() and os.unsetenv() on Windows.
- wsgiref.util.is_hop_by_hop() is now exposed correctly in
__all__.
- Avoid executing the default function in cmd.Cmd in an
except block
- Fix doctest for SyntaxError not-builtin subclasses.
- Add extra argument validation for alias command in pdb
- time: Make time.clock_gettime() and time.clock_gettime_ns()
functions up to 2x faster by faster calling
convention. Patch by Victor Stinner.
- Call loop exception handler for exceptions in
client_connected_cb of asyncio.start_server() so that
applications can handle it. Patch by Kumar Aditya.
- Fix reference leaks in bind_class() and bind_all() methods
of tkinter widgets.
- asyncio.loop.create_unix_server() will now automatically
remove the Unix socket when the server is closed.
- Added io.text_encoding(), io.DEFAULT_BUFFER_SIZE, and
io.IncrementalNewlineDecoder to io.__all__.
- Remove the code to set the REMOTE_HOST header from wsgiref
module, as it is unreachable. This header is used for
performance reasons, which is not necessary in the wsgiref
module.
- Speed up pathlib.PurePath.relative_to() and
is_relative_to().
- Fixed typo in math.sumprod().
- Remove mention of not supported “vsapi” element type
in tkinter.ttk.Style.element_create(). Add tests for
element_create() and other ttk.Style methods. Add examples
for element_create() in the documentation.
- Add show_group parameter to
traceback.format_exception_only(), which allows to format
ExceptionGroup instances.
- Another attempt at fixing asyncio.Server.wait_closed(). It
now blocks until both conditions are true: the server is
closed, and there are no more active connections. (This
means that in some cases where in 3.12.0 this function
would incorrectly have returned immediately, it will now
block; in particular, when there are no active connections
but the server hasn’t been closed yet.)
- Optimize recursive wildcards in pathlib.
- Fix time not checking for errors when initializing.
- Add error checking during _socket module init.
- Fix _blake2 not checking for errors when initializing.
- Fix select not checking for errors when initializing.
- Fix ssl not checking for errors when initializing.
- Fix crash in io.BytesIO.getbuffer() called repeatedly for
empty BytesIO.
- Postpone removal version for locale.getdefaultlocale() to
Python 3.15.
- Fix doctest output comparison for exceptions with notes.
- Fix invalid state handling in asyncio.TaskGroup and
asyncio.Timeout. They now raise proper RuntimeError if they
are improperly used and are left in consistent state after
this.
- Make turtledemo run without default root enabled.
- Support alias and convenience vars for pdb completion
- Added newline parameter to pathlib.Path.read_text(). Patch
by Junya Okabe.
- Make pdb enter post-mortem mode even for SyntaxError
- Set f_trace_lines = True on all frames upon pdb.set_trace()
- Expose the setup and cleanup portions of
asyncio.run_forever() as the standalone
methods asyncio.run_forever_setup() and
asyncio.run_forever_cleanup(). This allows for tighter
integration with GUI event loops.
- Support setting the asyncio.Runner loop_factory kwarg in
unittest.IsolatedAsyncioTestCase
- Fix tty.setraw() and tty.setcbreak(): previously they
returned partially modified list of the original tty
attributes. tty.cfmakeraw() and tty.cfmakecbreak() now make
a copy of the list of special characters before modifying
it.
- Make line number of function breakpoint more precise in pdb
- Emit deprecation warning for non-integer numbers in gettext
functions and methods that consider plural forms even if
the translation was not found.
- Ensure that select.kqueue() objects correctly appear as
closed in forked children, to prevent operations on an
invalid file descriptor.
- Add __reduce__ method to IPv6Address in order to keep
scope_id
- Improve errors for unsupported look-behind patterns. Now
re.error is raised instead of OverflowError or RuntimeError
for too large width of look-behind pattern.
- Add the ipaddress.IPv4Address.ipv6_mapped property, which
retuns the IPv4-mapped IPv6 address.
- Implement the CLI of the symtable module and improve the
repr of Symbol.
- Improved error handling in pdb command line interface,
making it produce more concise error messages.
- Change compileall to only strip the stripdir prefix from .
Prthe full path recorded in the compiled .pyc file, when .
Prthe prefix matches the start of the full path in its .
Prentirety. When the prefix does not match, no stripping .
Pris performed and a warning to this effect is displayed .
Previously all path components of the stripdir prefix that .
Prmatched the full path were removed, while those that did .
Prnot match were left alone (including ones interspersed .
Prbetween matching components) .
- Make the DictProxy and ListProxy types in
multiprocessing.managers Generic Alias Types for [] use in
typing contexts.
- Add glob.translate(). This function converts a pathname
with shell-style wildcards to a regular expression.
- Define USE_XATTRS on Cygwin so that XATTR-related functions
in the os module become available.
- New methods mailbox.Maildir.get_info(),
mailbox.Maildir.set_info(), mailbox.Maildir.get_flags(),
mailbox.Maildir.set_flags(), mailbox.Maildir.add_flag(),
mailbox.Maildir.remove_flag(). These methods speed up
accessing a message’s info and/or flags and are useful
when it is not necessary to access the message’s contents,
as when iterating over a Maildir to find messages with
specific flags.
- Fix returning of empty byte strings after seek in zipfile
module
- Added a parameter local_exit for code.interact() to
prevent exit() and quit from closing sys.stdin and raise
SystemExit.
- Change the behavior of tkinter.Text.count(). It now always
returns an integer if one or less counting options are
specified. Previously it could return a single count as a
1-tuple, an integer (only if option "update" was specified)
or None if no items found. The result is now the same if
wantobjects is set to 0.
- Switch the storage of the unicode codepoint names to
use a different data-structure, a directed acyclic word
graph. This makes the unicodedata shared library about 440
KiB smaller. Contributed by Carl Friedrich Bolz-Tereick
using code from the PyPy project.
- Omit the interface scope from an IPv6 address when used as
Host header by http.client.
- zipinfo now supports the full range of values in the TZ
string determined by RFC 8536 and detects all invalid
formats. Both Python and C implementations now raise
exceptions of the same type on invalid data.
- Tests
- Make the default value of test.support.infinite_recursion()
to be conditional based on whether optimizations were used
when compiling the interpreter. This helps with platforms
like WASI whose stack size is greatly restricted in debug
builds.
- Gathering line coverage of standard libraries within the
regression test suite is now precise, as well as much
faster. Patch by Łukasz Langa.
- Make regrtest --verbose3 option compatible with
- -huntrleaks -jN options. The ./python -m test -j1 -R 3:3
- -verbose3 command now works as expected. Patch by Victor
Stinner.
- Remove no longer used functions run_unittest() and
run_doctest() from the test.support module.
- Fix regrtest if the SOURCE_DATE_EPOCH environment
variable is defined: use the variable value as the random
seed. Patch by Victor Stinner.
- test_gdb: Fix detection of gdb built without Python
scripting support. Patch by Victor Stinner.
- Test case matching patterns specified by options --match,
- -ignore, --matchfile and --ignorefile are now tested in
the order of specification, and the last match determines
whether the test case be run or ignored.
- Add unit test for usercustomize and sitecustomize hooks
from site.
- Build
- Make make regen-unicodedata work for out-of-tree builds of
CPython.
- Add Tools/build/regen-configure.sh script to regenerate
the configure with an Ubuntu container image. The
quay.io/tiran/cpython_autoconf:271 container image
(tiran/cpython_autoconf) is no longer used. Patch by Victor
Stinner.
- For wasi-threads, memory is now exported to fix
compatibility issues with some wasm runtimes.
- AIX 32bit needs -latomic to build the _testcapi extension
module.
- The errno, md5, resource, winsound, _ctypes_test,
_multiprocessing.posixshmem, _scproxy, _stat,
_testimportmultiple and _uuid C extensions are now built
with the limited C API. Patch by Victor Stinner.
- IDLE
- Add docstrings to the IDLE debugger module. Fix two
bugs: initialize Idb.botframe (should be in Bdb); in
Idb.in_rpc_code, check whether prev_frame is None before
trying to use it. Greatly expand test_debugger.
- Tools/Demos
- Argument Clinic now supports the @critical_section
directive that instructs Argument Clinic to generate a
critical section around the function call, which locks the
self object in --disable-gil builds. Patch by Sam Gross.
- C API
- Add again the private _PyThreadState_UncheckedGet()
function as an alias to the new public
PyThreadState_GetUnchecked() function. Patch by Victor
Stinner.
- Restore the removed _PyDict_GetItemStringWithError()
function. It is used by numpy. Patch by Victor Stinner.
- Restore removed private C API functions, macros and
structures which have no simple replacement for now:
_PyDict_GetItem_KnownHash()
_PyDict_NewPresized()
_PyHASH_BITS
_PyHASH_IMAG
_PyHASH_INF
_PyHASH_MODULUS
_PyHASH_MULTIPLIER
_PyLong_Copy()
_PyLong_FromDigits()
_PyLong_New()
_PyLong_Sign()
_PyObject_CallMethodId()
_PyObject_CallMethodNoArgs()
_PyObject_CallMethodOneArg()
_PyObject_CallOneArg()
_PyObject_EXTRA_INIT
_PyObject_FastCallDict()
_PyObject_GetAttrId()
_PyObject_Vectorcall()
_PyObject_VectorcallMethod()
_PyStack_AsDict()
_PyThread_CurrentFrames()
_PyUnicodeWriter structure
_PyUnicodeWriter_Dealloc()
_PyUnicodeWriter_Finish()
_PyUnicodeWriter_Init()
_PyUnicodeWriter_Prepare()
_PyUnicodeWriter_PrepareKind()
_PyUnicodeWriter_WriteASCIIString()
_PyUnicodeWriter_WriteChar()
_PyUnicodeWriter_WriteLatin1String()
_PyUnicodeWriter_WriteStr()
_PyUnicodeWriter_WriteSubstring()
_PyUnicode_AsString()
_PyUnicode_FromId()
_PyVectorcall_Function()
_Py_IDENTIFIER()
_Py_c_abs()
_Py_c_diff()
_Py_c_neg()
_Py_c_pow()
_Py_c_prod()
_Py_c_quot()
_Py_c_sum()
_Py_static_string()
_Py_static_string_init()
- Add again <ctype.h> and <unistd.h> includes in Python.h,
but don’t include them in the limited C API version 3.13
and newer. Patch by Victor Stinner.
- Add internal-only one-time initialization API: _PyOnceFlag
and _PyOnceFlag_CallOnce.
- Add PyDict_Pop() and PyDict_PopString() functions:
remove a key from a dictionary and optionally return the
removed value. This is similar to dict.pop(), but without
the default value and not raising KeyError if the key
missing. Patch by Stefan Behnel and Victor Stinner.
- Rename Py_NOGIL to Py_GIL_DISABLED. Patch by Hugo van
Kemenade.
- Add PyList_Extend() and PyList_Clear() functions: similar
to Python list.extend() and list.clear() methods. Patch by
Victor Stinner.
- On Windows, Python.h no longer includes the <stddef.h>
standard header file. If needed, it should now be included
explicitly. Patch by Victor Stinner.
- Implement “Python Critical Sections” from PEP 703. These
are macros to help replace the GIL with per-object locks in
the --disable-gil build of CPython. The macros are no-ops
in the default build.
- In the limited C API version 3.13, Py_SET_REFCNT() function
is now implemented as an opaque function call. Patch by
Victor Stinner.
- Add PyErr_FormatUnraisable() function.
- Move the undocumented private _PyArg functions
and _PyArg_Parser structure to internal C API
(pycore_modsupport.h). Patch by Victor Stinner.
- Support non-ASCII keyword names in
PyArg_ParseTupleAndKeywords().
- Introduced PyUnstable_PerfTrampoline_CompileCode(),
PyUnstable_PerfTrampoline_SetPersistAfterFork() and
PyUnstable_CopyPerfMapFile(). These functions allow
extension modules to initialize trampolines eagerly, after
the application is “warmed up”. This makes it possible to
have perf-trampolines running in an always-enabled fashion.
- Add the PySys_Audit() function to the limited C API. Patch
by Victor Stinner.
- Add PyMem_RawMalloc(), PyMem_RawCalloc(),
PyMem_RawRealloc() and PyMem_RawFree() to the limited C
API. Patch by Victor Stinner.
- Functions PyDict_GetItem(), PyDict_GetItemString(),
PyMapping_HasKey(), PyMapping_HasKeyString(),
PyObject_HasAttr(), PyObject_HasAttrString(), and
PySys_GetObject(), which clear all errors occurred
during calling the function, report now them using
sys.unraisablehook().
- Remove redundant C-contiguity check in getargs.c, binascii,
ssl and Argument Clinic. Patched by Stefan Krah and Furkan
Onder
- Adjust patches:
- bpo-31046_ensurepip_honours_prefix.patch
- fix_configure_rst.patch
- python-3.3.0b1-fix_date_time_compiler.patch
- python-3.3.0b1-test-posix_fadvise.patch
* Fri Oct 13 2023 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.13.0a1:
* Allow the count argument of str.replace() to be a keyword. (Contributed by
Hugo van Kemenade in gh-106487.)
* Compiler now strip indents from docstrings. This will reduce the size of
bytecode cache (e.g. .pyc file). For example, cache file size for
sqlalchemy.orm.session in SQLAlchemy 2.0 is reduced by about 5%. This
change will affect tools using docstrings, like doctest. (Contributed by
Inada Naoki in gh-81283.)
* The compile() built-in can now accept a new flag, ast.PyCF_OPTIMIZED_AST,
which is similar to ast.PyCF_ONLY_AST except that the returned AST is
optimized according to the value of the optimize argument. (Contributed by
Irit Katriel in gh-108113).
* multiprocessing, concurrent.futures, compileall: Replace os.cpu_count()
with os.process_cpu_count() to select the default number of worker threads
and processes. Get the CPU affinity if supported. (Contributed by Victor
Stinner in gh-109649.)
* os.path.realpath() now resolves MS-DOS style file names even if the file is
not accessible. (Contributed by Moonsik Park in gh-82367.)
* Mon Oct 02 2023 Matej Cepl <mcepl@suse.com>
- Update to the final release of 3.12.0:
Python 3.12 is the latest stable release of the Python
programming language, with a mix of changes to the language and
the standard library. The library changes focus on cleaning up
deprecated APIs, usability, and correctness. Of note, the
distutils package has been removed from the standard library.
Filesystem support in os and pathlib has seen a number of
improvements, and several modules have better performance.
The language changes focus on usability, as f-strings have had
many limitations removed and ‘Did you mean …’ suggestions
continue to improve. The new type parameter syntax and type
statement improve ergonomics for using generic types and type
aliases with static type checkers.
This article doesn’t attempt to provide a complete
specification of all new features, but instead gives
a convenient overview. For full details, you should refer to
the documentation, such as the Library Reference and Language
Reference. If you want to understand the complete
implementation and design rationale for a change, refer to the
PEP for a particular new feature; but note that PEPs usually
are not kept up-to-date once a feature has been fully
implemented.
- New syntax features:
- PEP 695, type parameter syntax and the type statement
- New grammar features:
- PEP 701, f-strings in the grammar
- Interpreter improvements:
- PEP 684, a unique per-interpreter GIL
- PEP 669, low impact monitoring
- Improved ‘Did you mean …’ suggestions for NameError,
ImportError, and SyntaxError exceptions
- Python data model improvements:
- PEP 688, using the buffer protocol from Python
- Significant improvements in the standard library:
- The pathlib.Path class now supports subclassing
- The os module received several improvements for Windows
support
- A command-line interface has been added to the sqlite3
module
- isinstance() checks against runtime-checkable protocols
enjoy a speed up of between two and 20 times
- The asyncio package has had a number of performance
improvements, with some benchmarks showing a 75% speed
up.
- A command-line interface has been added to the uuid
module
- Due to the changes in PEP 701, producing tokens via the
tokenize module is up to up to 64% faster.
- Security improvements:
- Replace the builtin hashlib implementations of SHA1,
SHA3, SHA2-384, SHA2-512, and MD5 with formally verified
code from the HACL* project. These builtin
implementations remain as fallbacks that are only used
when OpenSSL does not provide them.
- C API improvements:
- PEP 697, unstable C API tier
- PEP 683, immortal objects
- CPython implementation improvements:
- PEP 709, comprehension inlining
- CPython support for the Linux perf profiler
- Implement stack overflow protection on supported
platforms
- New typing features:
- PEP 692, using TypedDict to annotate **kwargs
- PEP 698, typing.override() decorator
- Important deprecations, removals or restrictions:
- PEP 623: Remove wstr from Unicode objects in Python’s
C API, reducing the size of every str object by at least
8 bytes.
- PEP 632: Remove the distutils package. See the migration
guide for advice replacing the APIs it provided. The
third-party Setuptools package continues to provide
distutils, if you still require it in Python 3.12 and
beyond.
- gh-95299: Do not pre-install setuptools in virtual
environments created with venv. This means that
distutils, setuptools, pkg_resources, and easy_install
will no longer available by default; to access these run
pip install setuptools in the activated virtual
environment.
- The asynchat, asyncore, and imp modules have been
removed, along with several unittest.TestCase method
aliases.
- Refresh bluez-devel-vendor.tar.xz from bluez-devel 5.69-1.1.
* Wed Sep 20 2023 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.12.0rc3:
- Core and Builtins
- gh-109496: On a Python built in debug mode, Py_DECREF() now
calls _Py_NegativeRefcount() if the object is a dangling pointer
to deallocated memory: memory filled with 0xDD “dead byte” by
the debug hook on memory allocators. The fix is to check the
reference count before checking for _Py_IsImmortal(). Patch by
Victor Stinner.
- gh-109371: Deopted instructions correctly for tool
initialization and modified the incorrect assertion in
instrumentation, when a previous tool already sets INSTRUCTION
events
- gh-105658: Fix bug where the line trace of an except block
ending with a conditional includes an excess event with the line
of the conditional expression.
- gh-109219: Fix compiling type param scopes that use a name which
is also free in an inner scope.
- gh-109341: Fix crash when compiling an invalid AST involving a
ast.TypeAlias.
- gh-109195: Fix source location for the LOAD_* instruction
preceding a LOAD_SUPER_ATTR to load the super global (or
shadowing variable) so that it encompasses only the name super
and not the following parentheses.
- gh-109118: Disallow nested scopes (lambdas, generator
expressions, and comprehensions) within PEP 695 annotation
scopes that are nested within classes.
- gh-109114: Relax the detection of the error message for invalid
lambdas inside f-strings to not search for arbitrary replacement
fields to avoid false positives. Patch by Pablo Galindo
- gh-109118: Fix interpreter crash when a NameError is raised
inside the type parameters of a generic class.
- gh-108976: Fix crash that occurs after de-instrumenting a code
object in a monitoring callback.
- gh-108732: Make iteration variables of module- and class-scoped
comprehensions visible to pdb and other tools that use
frame.f_locals again.
- gh-108959: Fix caret placement for error locations for subscript
and binary operations that involve non-semantic parentheses and
spaces. Patch by Pablo Galindo
- Library
- gh-108682: Enum: require names=() or type=... to create an empty
enum using the functional syntax.
- gh-108843: Fix an issue in ast.unparse() when unparsing
f-strings containing many quote types.
- Documentation
- gh-102823: Document the return type of x // y when x and y have
type float.
- Tests
- 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-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-108834: Add --fail-rerun option option to regrtest: if a test
failed when then passed when rerun in verbose mode, exit the
process with exit code 2 (error), instead of exit code 0
(success). Patch by Victor Stinner.
- gh-108834: Rename regrtest --verbose2 option (-w) to --rerun.
Keep --verbose2 as a deprecated alias. Patch by Victor Stinner.
- gh-108834: When regrtest reruns failed tests in verbose mode
(./python -m test --rerun), tests are now rerun in fresh worker
processes rather than being executed in the main process. If a
test does crash or is killed by a timeout, the main process can
detect and handle the killed worker process. Tests are rerun in
parallel if the -jN option is used to run tests in parallel.
Patch by Victor Stinner.
- gh-103186: Suppress and assert expected RuntimeWarnings in
test_sys_settrace.py
- Build
- 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.
- Python 3.12.0 release candidate 2:
- Security
- gh-108310: Fixed an issue where instances of ssl.SSLSocket were
vulnerable to a bypass of the TLS handshake and included
protections (like certificate verification) and treating sent
unencrypted data as if it were post-handshake TLS encrypted
data. Security issue reported as CVE-2023-40217 by Aapo Oksman.
Patch by Gregory P. Smith.
- gh-107774: PEP 669 specifies that
sys.monitoring.register_callback will generate an audit event.
Pre-releases of Python 3.12 did not generate the audit event.
This is now fixed.
- Core and Builtins
- 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.
- gh-108654: Restore locals shadowed by an inlined comprehension
if the comprehension raises an exception.
- gh-108487: Change an assert that would cause a spurious crash in
a devious case that should only trigger deoptimization.
- gh-106176: Use a WeakValueDictionary to track the lists
containing the modules each thread is currently importing. This
helps avoid a reference leak from keeping the list around longer
than necessary. Weakrefs are used as GC can’t interrupt the
cleanup.
- gh-107901: Fix missing line number on JUMP_BACKWARD at the end
of a for loop.
- gh-108390: Raise an exception when setting a non-local event
(RAISE, EXCEPTION_HANDLED, etc.) in
sys.monitoring.set_local_events.
- Fixes crash when tracing in recursive calls to Python classes.
- gh-91051: Fix abort / segfault when using all eight type watcher
slots, on platforms where char is signed by default.
- gh-107724: In pre-release versions of 3.12, up to rc1, the
sys.monitoring callback function for the PY_THROW event was
missing the third, exception argument. That is now fixed.
- gh-107080: Trace refs builds (--with-trace-refs) were crashing
when used with isolated subinterpreters. The problematic global
state has been isolated to each interpreter. Other fixing the
crashes, this change does not affect users.
- gh-77377: Ensure that multiprocessing synchronization objects
created in a fork context are not sent to a different process
created in a spawn context. This changes a segfault into an
actionable RuntimeError in the parent process.
- Library
- gh-108469: ast.unparse() now supports new f-string syntax
introduced in Python 3.12. Note that the f-string quotes are
reselected for simplicity under the new syntax. (Patch by Steven
Sun)
- gh-108682: Enum: raise TypeError if super().__new__() is called
from a custom __new__.
- gh-108295: Fix crashes related to use of weakrefs on
typing.TypeVar.
- gh-64662: Fix support for virtual tables in
sqlite3.Connection.iterdump(). Patch by Aviv Palivoda.
- gh-108111: Fix a regression introduced in gh-101251 for 3.12,
resulting in an incorrect offset calculation in
gzip.GzipFile.seek().
- gh-105736: Harmonized the pure Python version of OrderedDict
with the C version. Now, both versions set up their internal
state in __new__. Formerly, the pure Python version did the set
up in __init__.
- gh-108083: Fix bugs in the constructor of sqlite3.Connection and
sqlite3.Connection.close() where exceptions could be leaked.
Patch by Erlend E. Aasland.
- gh-107963: Fix multiprocessing.set_forkserver_preload() to check
the given list of modules names. Patch by Dong-hee Na.
- gh-106242: Fixes os.path.normpath() to handle embedded null
characters without truncating the path.
- 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-107845: tarfile.data_filter() now takes the location of
symlinks into account when determining their target, so it will
no longer reject some valid tarballs with
LinkOutsideDestinationError.
- gh-107805: Fix signatures of module-level generated functions in
turtle.
- gh-107715: Fix doctest.DocTestFinder.find() in presence of class
names with special characters. Patch by Gertjan van Zwieten.
- gh-100814: Passing a callable object as an option value to a
Tkinter image now raises the expected TclError instead of an
AttributeError.
- gh-106684: Close asyncio.StreamWriter when it is not closed by
application leading to memory leaks. Patch by Kumar Aditya.
- gh-107396: tarfiles; Fixed use before assignment of
self.exception for gzip decompression
- gh-106052: re module: fix the matching of possessive quantifiers
in the case of a subpattern containing backtracking.
- gh-100061: Fix a bug that causes wrong matches for regular
expressions with possessive qualifier.
- gh-99203: Restore following CPython <= 3.10.5 behavior of
shutil.make_archive(): do not create an empty archive if
root_dir is not a directory, and, in that case, raise
FileNotFoundError or NotADirectoryError regardless of format
choice. Beyond the brought-back behavior, the function may now
also raise these exceptions in dry_run mode.
- Documentation
- gh-105052: Update timeit doc to specify that time in seconds is just the default.
- Tests
- gh-89392: Removed support of test_main() function in tests. They
now always use normal unittest test runner.
- 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-105776: Fix test_cppext when the C compiler command -std=c11
option: remove -std= options from the compiler command. Patch by
Victor Stinner.
- gh-107178: Add the C API test for functions in the Mapping
Protocol, the Sequence Protocol and some functions in the Object
Protocol.
- 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-107814: When calling find_python.bat with -q it did not
properly silence the output of nuget. That is now fixed.
- Windows
- gh-107565: Update Windows build to use OpenSSL 3.0.10.
- gh-106242: Fixes realpath() to behave consistently when passed a
path containing an embedded null character on Windows. In strict
mode, it now raises OSError instead of the unexpected
ValueError, and in non-strict mode will make the path absolute.
- gh-106844: Fix integer overflow and truncating by the null
character in _winapi.LCMapStringEx() which affects
ntpath.normcase().
- macOS
- gh-107565: Update macOS installer to use OpenSSL 3.0.10.
- Tools/Demos
- gh-107565: Update multissltests and GitHub CI workflows to use
OpenSSL 1.1.1v, 3.0.10, and 3.1.2.
- gh-95065: Argument Clinic now supports overriding automatically
generated signature by using directive @text_signature.
- C API
- gh-107916: C API functions PyErr_SetFromErrnoWithFilename(),
PyErr_SetExcFromWindowsErrWithFilename() and
PyErr_SetFromWindowsErrWithFilename() save now the error code
before calling PyUnicode_DecodeFSDefault().
- gh-107915: Such C API functions as PyErr_SetString(),
PyErr_Format(), PyErr_SetFromErrnoWithFilename() and many others
no longer crash or ignore errors if it failed to format the
error message or decode the filename. Instead, they keep a
corresponding error.
- gh-107810: Improve DeprecationWarning for uses of PyType_Spec
with metaclasses that have custom tp_new.
* Thu Aug 10 2023 Dirk Müller <dmueller@suse.com>
- restrict PEP668 to ALP/Tumbleweed
* Mon Aug 07 2023 Daniel Garcia <daniel.garcia@suse.com>
- Refresh all patches
- Drop Revert-gh105127-left-tests.patch, in upstream now
- Update to 3.12.0rc1:
- Reverted the :mod:`email.utils` security improvement change
released in 3.12beta4 that unintentionally caused
:mod:`email.utils.getaddresses` to fail to parse email addresses
with a comma in the quoted name field. See :gh:`106669`.
- Start initializing ob_digit during creation of
:c:type:`PyLongObject` objects. Patch by Illia Volochii.
- Increase C recursion limit for functions other than the main
interpreter from 800 to 1500. This should allow functions like
list.__repr__ and json.dumps to handle all the inputs that they
could prior to 3.12
- Fix potential unaligned memory access on C APIs involving returned
sequences of char * pointers within the :mod:`grp` and
:mod:`socket` modules. These were revealed using a
- fsaniziter=alignment build on ARM macOS. Patch by Christopher
Chavez.
- Add the exception as the third argument to PY_UNIND callbacks in
sys.monitoring. This makes the PY_UNWIND callback consistent with
the other exception hanlding callbacks.
- Raise a ValueError when a monitoring callback funtion returns
DISABLE for events that cannot be disabled locally.
- Add a RERAISE event to sys.monitoring, which occurs when an
exception is reraised, either explicitly by a plain raise
statement, or implicitly in an except or finally block.
- Unsupported modules now always fail to be imported.
- Fix classmethod-style :func:`super` method calls (i.e., where the
second argument to :func:`super`, or the implied second argument
drawn from self/cls in the case of zero-arg super, is a type) when
the target of the call is not a classmethod.
- Python no longer crashes due an infrequent race when initialzing
per-interpreter interned strings. The crash would manifest when
the interpreter was finalized.
- Python no longer crashes due to an infrequent race in setting
Py_FileSystemDefaultEncoding and Py_FileSystemDefaultEncodeErrors
(both deprecated), when simultaneously initializing two isolated
subinterpreters. Now they are only set during runtime
initialization.
- Fix a segmentation fault caused by a use-after-free bug in
frame_dealloc when the trashcan delays the deallocation of a
PyFrameObject.
- No longer suppress arbitrary errors in the __annotations__ getter
and setter in the type and module types.
- Propagate frozen_modules to multiprocessing spawned process
interpreters.
- Prevent out-of-bounds memory access during mmap.find() calls.
- Seems that in some conditions, OpenSSL will return
SSL_ERROR_SYSCALL instead of SSL_ERROR_SSL when a certification
verification has failed, but the error parameters will still
contain ERR_LIB_SSL and SSL_R_CERTIFICATE_VERIFY_FAILED. We are
now detecting this situation and raising the appropiate
ssl.SSLCertVerificationError. Patch by Pablo Galindo
- Fix :func:`types.get_original_bases` to only return
:attr:`!__orig_bases__` if it is present on cls directly. Patch by
James Hilton-Balfe.
- Prevent memory leak and use-after-free when using pointers to
pointers with ctypes
- Make :func:`gettext.pgettext` search plural definitions when
translation is not found.
- Document behavior of :func:`shutil.disk_usage` for non-mounted
filesystems on Unix.
- Do not report MultipartInvariantViolationDefect defect when the
:class:`email.parser.Parser` class is used to parse emails with
headersonly=True.
- Fix invalid result from :meth:`PurePath.relative_to` method when
attempting to walk a ".." segment in other with walk_up enabled. A
:exc:`ValueError` exception is now raised in this case.
- Fix potential missing NULL check of d2i_SSL_SESSION result in
_ssl.c.
- Update the bundled copy of pip to version 23.2.1.
- Fixed several bugs in zipfile.Path, including: in Path.match`,
Windows separators are no longer honored (and never were meant to
be); Fixed ``name/suffix/suffixes/stem operations when no filename
is present and the Path is not at the root of the zipfile;
Reworked glob for performance and more correct matching behavior.
- Add __copy__ and __deepcopy__ in :mod:`enum`
- Revert a change to :func:`colorsys.rgb_to_hls` that caused
division by zero for certain almost-white inputs. Patch by Terry
Jan Reedy.
- Instances of :class:`typing.TypeVar`, :class:`typing.ParamSpec`,
:class:`typing.ParamSpecArgs`, :class:`typing.ParamSpecKwargs`,
and :class:`typing.TypeVarTuple` once again support weak
references, fixing a regression introduced in Python 3.12.0 beta
1. Patch by Jelle Zijlstra.
- Detect possible memory allocation failure in the libtommath
function :c:func:`mp_init` used by the _tkinter module.
- Fix crash when calling repr with a manually constructed SignalDict
object. Patch by Charlie Zhao.
- Change the default return value of
:meth:`http.client.HTTPConnection.get_proxy_response_headers` to
be None and not {}.
- Ensure gettext(msg) retrieve translations even if a plural form
exists. In other words: gettext(msg) == ngettext(msg, '', 1).
- Add documentation for :c:type:`PyInterpreterConfig` and
:c:func:`Py_NewInterpreterFromConfig`. Also clarify some of the
nearby docs relative to per-interpreter GIL.
- Document the :mod:`curses` module variables :const:`~curses.LINES`
and :const:`~curses.COLS`.
- Add a number of standard external names to nitpick_ignore.
- Add documentation on how to localize the :mod:`argparse` module.
- test_logging: Fix test_udp_reconnection() by increasing the
timeout from 100 ms to 5 minutes (LONG_TIMEOUT). Patch by Victor
Stinner.
- test_capi: Fix test_no_FatalError_infinite_loop() to no longer
write a coredump, by using test.support.SuppressCrashReport. Patch
by Victor Stinner.
- Avoid creating a reference to the test object in
:meth:`~unittest.TestResult.collectedDurations`.
- Moved tests for zipfile.Path into Lib/test/test_zipfile/_path.
Made zipfile._path a package.
- Check for linux/limits.h before including it in
Modules/posixmodule.c.
- Detect MPI compilers in :file:`configure`.
- Add experimental wasi-threads support. Patch by Takashi Yamamoto.
- Update Windows build to use OpenSSL 3.0.9
- Update macOS installer to use OpenSSL 3.0.9.
- Fix bugs in the Argument Clinic destination <name> clear command;
the destination buffers would never be cleared, and the
destination directive parser would simply continue to the fault
handler after processing the command. Patch by Erlend E. Aasland.
- freeze now fetches CONFIG_ARGS from the original CPython instance
the Makefile uses to call utility scripts. Patch by Ijtaba
Hussain.
- :c:func:`PyModule_AddObjectRef` is now only available in the
limited API version 3.10 or later.
* Fri Aug 04 2023 Dirk Müller <dmueller@suse.com>
- add externally_managed.in to label this build as PEP-668 managed
* Thu Aug 03 2023 Matej Cepl <mcepl@suse.com>
- IT MEANS THAT bsc#1210638 STILL HAS NOT BEEN FIXED!
- Add Revert-gh105127-left-tests.patch (gh#python/cpython!106941)
partially reverting CVE-2023-27043-email-parsing-errors.patch,
because of the regression in gh#python/cpython#106669.
* Tue Jul 11 2023 Matej Cepl <mcepl@suse.com>
- Update to 3.12.0b4:
- gh-issue-102988: CVE-2023-27043 (bsc#1210638): Prevent
:func:`email.utils.parseaddr` and
:func:`email.utils.getaddresses` from returning the realname
portion of an invalid RFC2822 email header in the email
address portion of the 2-tuple returned after being parsed by
:class:`email._parseaddr.AddressList`.
- gh-issue-106396: When the format specification of an
f-string expression is empty, the parser now generates an
empty :class:`ast.JoinedStr` node for it instead of an
one-element :class:`ast.JoinedStr` with an empty string
:class:`ast.Constant`.
- gh-issue-106145: Make ``end_lineno`` and ``end_col_offset``
required on ``type_param`` ast nodes.
- gh-issue-105979: Fix crash in :func:`!_imp.get_frozen_object`
due to improper exception handling.
- gh-issue-98931: Ensure custom :exc:`SyntaxError` error
messages are raised for invalid imports with multiple
targets. Patch by Pablo Galindo
- gh-issue-105908: Fixed bug where :gh:`99111` breaks future
import ``barry_as_FLUFL`` in the Python REPL.
- gh-issue-105340: Include the comprehension iteration
variable in ``locals()`` inside a module- or class-scope
comprehension.
- gh-issue-105486: Change the repr of ``ParamSpec`` list of
args in ``types.GenericAlias``.
- gh-issue-101006: Improve error handling when read
:mod:`marshal` data.
- gh-issue-106524: Fix crash in :func:`!_sre.template` with
templates containing invalid group indices.
- gh-issue-106510: Improve debug output for atomic groups in
regular expressions.
- gh-issue-106503: Fix ref cycle in
:class:`!asyncio._SelectorSocketTransport` by removing
``_write_ready`` in ``close``.
- gh-issue-105497: Fix flag mask inversion when unnamed flags
exist.
- gh-issue-90876: Prevent :mod:`multiprocessing.spawn` from
failing to *import* in environments where ``sys.executable``
is ``None``. This regressed in 3.11 with the addition of
support for path-like objects in multiprocessing.
- gh-issue-106292: Check for an instance-dict
cached value in the :meth:`__get__` method of
:func:`functools.cached_property`. This better matches the
pre-3.12 behavior and improves compatibility for users
subclassing :func:`functools.cached_property` and adding a
:meth:`__set__` method.
- gh-issue-106330: Fix incorrect matching of empty paths in
:meth:`pathlib.PurePath.match`. This bug was introduced in
Python 3.12.0 beta 1.
- gh-issue-102541: Make pydoc.doc catch bad module ImportError
when output stream is not None.
- gh-issue-106152: Added PY_THROW event hook for
:mod:`cProfile` for generators
- gh-issue-106075: Added `asyncio.taskgroups.__all__` to
`asyncio.__all__` for export in star imports.
- gh-issue-105987: Fix crash due to improper reference counting
in :mod:`asyncio` eager task factory internal routines.
- gh-issue-105974: Fix bug where a :class:`typing.Protocol`
class that had one or more non-callable members would
raise :exc:`TypeError` when :func:`issubclass` was called
against it, even if it defined a custom ``__subclasshook__``
method. The behaviour in Python 3.11 and lower -- which has
now been restored -- was not to raise :exc:`TypeError` in
these situations if a custom ``__subclasshook__`` method was
defined. Patch by Alex Waygood.
- gh-issue-96145: Reverted addition of ``json.AttrDict``.
- gh-issue-105497: Fix flag inversion when alias/mask members
exist.
- gh-issue-104554: Add RTSPS scheme support in urllib.parse
- gh-issue-94777: Fix hanging :mod:`multiprocessing`
``ProcessPoolExecutor`` when a child process crashes while
data is being written in the call queue.
- gh-issue-106232: Make timeit doc command lines compatible
with Windows by using double quotes for arguments. This
works on linux and macOS also.
- gh-issue-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-issue-106118: Fix compilation for platforms without
:data:`!O_CLOEXEC`. The issue was introduced with Python
3.12b1 in :gh:`103295`. Patch by Erlend Aasland.
- gh-issue-104692: Include ``commoninstall`` as a prerequisite
for ``bininstall``
This ensures that ``commoninstall`` is completed before
``bininstall`` is started when parallel builds are used (``make
- j install``), and so the ``python3`` symlink is only installed
after all standard library modules are installed.
- gh-issue-106359: Argument Clinic now explicitly forbids
"kwarg splats" in function calls used as annotations.
- gh-issue-105227: The new :c:func:`PyType_GetDict` provides
the dictionary for the given type object that is normally
exposed by ``cls.__dict__``. Normally it's sufficient to
use :c:member:`~PyTypeObject.tp_dict`, but for the static
builtin types :c:member:`!tp_dict` is now always ``NULL``.
:c:func:`!PyType_GetDict()` provides the correct dict object
instead.
* Wed Jun 28 2023 Matej Cepl <mcepl@suse.com>
- Update to 3.12.0b3:
- gh-103142: The version of OpenSSL used in Windows and
Mac installers has been upgraded to 1.1.1u to address
CVE-2023-2650, CVE-2023-0465, CVE-2023-0466, CVE-2023-0464,
as well as CVE-2023-0286, CVE-2022-4303, and CVE-2022-4303
fixed previously in 1.1.1t (gh-101727).
- gh-102153: urllib.parse.urlsplit() now strips leading C0
control and space characters following the specification for
URLs defined by WHATWG in response to CVE-2023-24329.
- gh-99889: Fixed a security in flaw in uu.decode() that could
allow for directory traversal based on the input if no
out_file was specified.
- gh-104049: Do not expose the local on-disk
location in directory indexes produced by
http.client.SimpleHTTPRequestHandler.
- gh-103935: trace.__main__ now uses io.open_code() for files
to be executed instead of raw open().
- gh-102953: The extraction methods in tarfile, and
shutil.unpack_archive(), have a new filter argument that
allows limiting tar features than may be surprising or
dangerous, such as creating files outside the destination
directory. See Extraction filters for details.
- Remove upstreamed patches:
- 00398-fix-stack-overwrite-on-32-bit-in-perf-map-test-harness-gh-104811-104823.patch
* Thu Jun 01 2023 Daniel Garcia <daniel.garcia@suse.com>
- Add 00398-fix-stack-overwrite-on-32-bit-in-perf-map-test-harness-gh-104811-104823.patch
gh#python/cpython#104811
* Wed May 31 2023 Daniel Garcia <daniel.garcia@suse.com>
- Refresh all patches
- Update to 3.12.0b1:
Full changelog can be found here
https://docs.python.org/dev/whatsnew/changelog.html#python-3-12-0-beta-1
* Sun Apr 30 2023 Matej Cepl <mcepl@suse.com>
- Why in the world we download from HTTP?
* Thu Apr 27 2023 Daniel Garcia <daniel.garcia@suse.com>
- Ignore failing test test_freeze_simple_script, it fails because it
cannot import _sysconfigdata__linux_x86_64-linux-gnu that's not
present in the test environment, it fails without bundled libs.
- Remove non existing paths:
* %{sitedir}/tkinter/test
* %{sitedir}/sqlite3/test
* %{dynlib _curses_panel}
* Wed Apr 26 2023 Daniel Garcia <daniel.garcia@suse.com>
- Update to 3.12.0a7:
Full changelog can be found here
https://docs.python.org/dev/whatsnew/changelog.html#python-3-12-0-alpha-7
* Mon Mar 27 2023 Matej Cepl <mcepl@suse.com>
- Switch off obsoleting previous interpreters.
* Sat Mar 25 2023 Matej Cepl <mcepl@suse.com>
- Update to 3.12.0a6:
- Many new features for Python 3.12 are still being planned and
written. Among the new major new features and changes so far:
- Even more improved error messages. More exceptions
potentially caused by typos now make suggestions to the
user.
- Support for the Linux perf profiler to report Python
function names in traces.
- The deprecated wstr and wstr_length members of the C
implementation of unicode objects were removed, per PEP
623.
- In the unittest module, a number of long deprecated methods
and classes were removed. (They had been deprecated since
Python 3.1 or 3.2).
- The deprecated smtpd and distutils modules have been
removed (see PEP 594 and PEP 632. The setuptools package
(installed by default in virtualenvs and many other places)
continues to provide the distutils module.
- A number of other old, broken and deprecated functions,
classes and methods have been removed.
- Invalid backslash escape sequences in strings now warn
with SyntaxWarning instead of DeprecationWarning, making
them more visible. (They will become syntax errors in the
future.)
- The internal representation of integers has changed in
preparation for performance enhancements. (This should not
affect most users as it is an internal detail, but it may
cause problems for Cython-generated code.)
- Add the refreshed version of
F00251-change-user-install-location.patch (updated from
Fedora), which works together with the installation schemes in
sysconfig.
- Remove distutils-reproducible-compile.patch, which is not
applicable anymore (because distutils was removed from the
standard library).
- Remove upstreamed support-expat-CVE-2022-25236-patched.patch
* Fri Mar 03 2023 Matej Cepl <mcepl@suse.com>
- Update to 3.11.2:
Bug fixes, no changes in API and no security bugs.
* Wed Mar 01 2023 Matej Cepl <mcepl@suse.com>
- Add python310 Obsoletes line to obsolete_python_versioned macro.
* Tue Feb 21 2023 Matej Cepl <mcepl@suse.com>
- Add provides for readline and sqlite3 to the main Python
package.
* Thu Jan 26 2023 Thorsten Kukuk <kukuk@suse.com>
- Disable NIS for new products, it's deprecated and gets removed
* Tue Jan 24 2023 Dirk Müller <dmueller@suse.com>
- build GLIBC hwcaps optimized versions of the interpreter
* Tue Jan 10 2023 Matej Cepl <mcepl@suse.com>
- Don't fail on Sphinx build warnings.
- For jsc#PED-1570, providing Python 3.11 for SLE-15-SP5.
* Thu Dec 08 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.1:
- python -m http.server no longer allows terminal control
characters sent within a garbage request to be printed
to the stderr server lo This is done by changing the
http.server BaseHTTPRequestHandler .log_message method to
replace control characters with a \xHH hex escape before
printin
- Avoid publishing list of active per-interpreter audit hooks
via the gc module
- The IDNA codec decoder used on DNS hostnames by socket or
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 urllib http 3xx redirects potentially allow
for an attacker to supply such a name (CVE-2022-45061).
- Update bundled libexpat to 2.5.0
- 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.
- Fix a crash when an object which does not have a dictionary
frees its instance values.
- 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
- 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.
- Fix a reference bug in _imp.create_builtin() after the
creation of the first sub-interpreter for modules builtins
and sys. Patch by Victor Stinner.
- 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
- Fix bug where an ExceptionGroup subclass can wrap a
BaseException.
- Fix zip path for venv created from a non-installed python on
POSIX platforms.
- Fix an issue that could potentially cause incorrect error
handling for some bytecode instructions.
- Fix an issue that prevented PyThreadState and
PyInterpreterState memory from being freed properly.
- Fix failure in except* with unhashable exceptions.
- Fix calculation of 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<MAJOR>”, “python<MAJOR>.<MINOR>”).
- Update faulthandler to emit an error message with the proper
unexpected signal number. Patch by Dong-hee Na.
- Fix location of SyntaxError for a try block with both except
and except*.
- Fix the error reporting positions of specialized traceback
anchors when the source line contains Unicode characters.
- Fix subscription of type aliases containing bare generic
types or types like TypeVar: for example tuple[A, T][int] and
tuple[TypeVar, T][int], where A is a generic type, and T is a
type variable.
- Lower the recursion depth for marshal on WASI to support
wasmtime 2.0/main.
- Fix multiple crashes in debug mode when str subclasses are
used instead of str itself.
- Fix an issue where member descriptors (such as those for
__slots__) could behave incorrectly or crash instead of
raising a TypeError when accessed via an instance of an
invalid type.
- Suppress ImportError for invalid query for help()
command. Patch by Dong-hee Na.
- Fix detection of MAC addresses for uuid on certain OSs. Patch
by Chaim Sanders
- Print exception class name instead of its string
representation when raising errors from ctypes calls.
- os.sched_yield() now release the GIL while calling
sched_yield(2). Patch by Dong-hee Na.
- Fix an issue that could delay the specialization of PRECALL
instructions.
- Bugfix: PyFunction_GetAnnotations() should return a borrowed
reference. It was returning a new reference.
- Ensure that all Python frame objects are backed by “complete”
frames.
- Fixed a missing incref/decref pair in
Exception.__setstate__(). Patch by Ofey Chan.
- Fix the Python path configuration used to initialized
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.
- Fix overly-broad source position information for chained
comparisons used as branching conditions.
- 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.
- Fix a possible assertion failure, fatal error, or SystemError
if a line tracing event raises an exception while opcode
tracing is enabled.
- Fix undefined behaviour in C code of null pointer arithmetic.
- Make sure that all frame objects created are created from
valid interpreter frames. Prevents the possibility of invalid
frames in backtraces and signal handlers.
- Disable incorrect pickling of the C implemented classmethod
descriptors.
- On WASI ENOTCAPABLE is now mapped to PermissionError. The
errno modules exposes the new error number. getpath.py now
ignores PermissionError when it cannot open landmark files
pybuilddir.txt and pyenv.cfg.
- Allow pdb to locate source for frozen modules in the standard
library.
- Raise ValueError instead of SystemError when methods of
uninitialized io.IncrementalNewlineDecoder objects are
called. Patch by Oren Milman.
- Fix a possible assertion failure in io.FileIO when the opener
returns an invalid file descriptor.
- 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.
- 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.
- Fix bug when calling trace.CoverageResults with valid infile.
- Fix a bug in handling class cleanups in
unittest.TestCase. Now addClassCleanup() uses separate lists
for different TestCase subclasses, and doClassCleanups() only
cleans up the particular class.
- Release the GIL when calling termios APIs to avoid blocking
threads.
- Fix ast.increment_lineno() to also cover ast.TypeIgnore when
changing line numbers.
- Fix bug in urllib.parse.urlparse() that causes URL schemes
that begin with a digit, a plus sign, or a minus sign to be
parsed incorrectly.
- Check the number of arguments in substitution in user
generics containing a TypeVarTuple and one or more TypeVar.
- Fix substitution of ParamSpec followed by TypeVarTuple in
generic aliases.
- Fix substitution of TypeVarTuple and ParamSpec together in
user generics.
- Fixed bug where inspect.signature() reported incorrect
arguments for decorated methods.
- Fix SystemError in ctypes when exception was not set during
__initsubclass__.
- Remove older version of
_SSLProtocolTransport.get_write_buffer_limits in
asyncio.sslproto
- fix negative numbers failing in verify()
- Fix statistics.NormalDist pickle with 0 and 1 protocols.
- 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').
- Update the bundled copy of pip to version 22.3.1.
- Clean up refleak on failed module initialisation in _zoneinfo
- Clean up refleaks on failed module initialisation in in
_pickle
- Clean up refleak on failed module initialisation in _io.
- Fix memory leak in math.dist() when both points don’t have
the same dimension. Patch by Kumar Aditya.
- [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.
- Fix argument typechecks in _overlapped.WSAConnect() and
_overlapped.Overlapped.WSASendTo() functions.
- Prevent crashing in traceback when retrieving the byte-offset
for some source files that contain certain unicode
characters.
- Fix internal error in the re module which in very rare
circumstances prevented compilation of a regular expression
containing a conditional expression without the “else”
branch.
- Fix asyncio.StreamWriter.drain() to call
protocol.connection_lost callback only once on Windows.
- Add a mutex to unittest.mock.NonCallableMock to protect
concurrent access to mock attributes.
- Fix hang on Windows in subprocess.wait_closed() in asyncio
with ProactorEventLoop. Patch by Kumar Aditya.
- Fix infinite loop in unittest when a self-referencing chained
exception is raised
- tkinter.Text.count() raises now an exception for options
starting with “-” instead of silently ignoring them.
- On uname_result, restored expectation that _fields and
_asdict would include all six properties including processor.
- A createSocket() method was added to SysLogHandler.
- Fix bug in urllib.parse.urlparse() that causes certain port
numbers containing whitespace, underscores, plus and minus
signs, or non-ASCII digits to be incorrectly accepted.
- Allow venv to pass along PYTHON* variables to ensurepip and
pip when they do not impact path resolution
- On macOS, fix a crash in syslog.syslog() in multi-threaded
applications. On macOS, the libc syslog() function is not
thread-safe, so syslog.syslog() no longer releases the GIL to
call it. Patch by Victor Stinner.
- Allow BUILTINS to be a valid field name for frozen
dataclasses.
- 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.
- Make sure patch.dict() can be applied on async functions.
- Earlier in 3.11 we deprecated
asyncio.Task.cancel("message"). We realized we were too
harsh, and have undeprecated it.
- Change deprecate warning message in 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
- Fixes AttributeError when subprocess.check_output() is used
with argument input=None and either of the arguments encoding
or errors are used.
- Fix is_private properties in the ipaddress module. Previously
non-private networks (0.0.0.0/0) would return True from this
method; now they correctly return False.
- Avoid spurious tracebacks from asyncio when default executor
cleanup is delayed until after the event loop is closed (e.g.
as the result of a keyboard interrupt).
- Avoid a crash in the C version of
asyncio.Future.remove_done_callback() when an evil argument
is passed.
- Remove tokenize.NL check from tabnanny.
- Fix generation of the default name of
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.
- Update bundled libexpat to 2.4.9
- Fix race condition in asyncio where process_exited() called
before the pipe_data_received() leading to inconsistent
output. Patch by Kumar Aditya.
- Fixed check in multiprocessing.resource_tracker that
guarantees that the length of a write to a pipe is not
greater than PIPE_BUF.
- Corrected type annotation for dataclass attribute
pstats.FunctionProfile.ncalls to be str.
- Fix repr of Any subclasses.
- Work around missing socket functions in socket’s __repr__.
- In inspect, fix overeager replacement of “typing.” in
formatting annotations.
- Fix handling of bytes path-like objects in os.ismount().
- Fix handling compiler warnings (SyntaxWarning and
DeprecationWarning) in 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.
- To avoid apparent memory leaks when 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.
- Fixed flickering of the turtle window when the tracer is
turned off. Patch by Shin-myoung-serp.
- Fix asyncio subprocess transport to kill process cleanly
when process is blocked and avoid RuntimeError when loop is
closed. Patch by Kumar Aditya.
- Prevent error when activating venv in nested fish instances.
- TarFile.next() now returns None when called on an empty
tarfile.
- Document the optional callback parameter of WeakMethod. Patch
by Géry Ogam.
- Restrict use of sockets instead of pipes for stdin of
subprocesses created by asyncio to AIX platform only.
- shutil.copytree() now applies the ignore_dangling_symlinks
argument recursively.
- Fix IndexError in argparse.ArgumentParser when a store_true
action is given an explicit argument.
- Document that calling variadic functions with ctypes requires
special care on macOS/arm64 (and possibly other platforms).
- Remove extra row
- Clarified the conflicting advice given in the ast
documentation about 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.
- Restructured the documentation for the os.wait* family of
functions, and improved the docs for os.waitid() with more
explanation of the possible argument constants.
- Skip test_normalization() of test_unicodedata if it
fails to download NormalizationTest.txt file from
pythontest.net. Patch by Victor Stinner.
- Correct test_marsh on (32 bit) x86: test_deterministic sets
was failing.
- Optional big memory tests in test_sqlite3 now catch the
correct sqlite.DataError exception type in case of too large
strings and/or blobs passed.
- Fix a bug in the typing tests where a test relying
on CPython-specific implementation details was not
decorated with @cpython_only and was not skipped on other
implementations.
- Add tests for star-unpacking with PEP 646, and some other
miscellaneous PEP 646 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)
- Some C API tests were moved into the new Lib/test/test_capi/
directory.
- Fix -Wimplicit-int, -Wstrict-prototypes, and
- Wimplicit-function-declaration compiler warnings in
configure checks.
- Fix a compilation issue with GCC 12 on macOS.
- Fix -Wimplicit-int compiler warning in configure check for
PTHREAD_SCOPE_SYSTEM.
- Fix a possible fd leak in Programs/_freeze_module.c
introduced in Python 3.11.
- Fix build with PYTHON_FOR_REGEN=python3.8.
- Specify the full path to the source location for make
docclean (needed for cross-builds).
- Don’t use vendored libmpdec headers if --with-system-libmpdec
is passed to configure. Don’t use vendored libexpat headers
if --with-system-expat is passed to !configure.
- Fix the build process of clang compiler for _bootstrap_python
if LTO optimization is applied. Patch by Matthias Görgens and
Dong-hee Na.
- wasm32-emscripten builds for browsers now include
concurrent.futures for asyncio and unittest.mock.
- wasm32-emscripten platform no longer builds resource module,
getresuid(), getresgid(), and their setters. The APIs are
stubs and not functional.
- 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.
- Fix a bug in the previous bugfix that caused IDLE to
not start when run with 3.10.8, 3.12.0a1, and at least
Microsoft Python 3.10.2288.0 installed without the Lib/test
package. 3.11.0 was never affected.
- The wasm_build.py script now pre-builds Emscripten ports,
checks for broken EMSDK versions, and warns about pkg-config
env vars.
- The new tool Tools/wasm/wasm_builder.py automates configure,
compile, and test steps for building CPython on WebAssembly
platforms.
- Fix handling of module docstrings in Tools/i18n/pygettext.py.
- PyBUF_* constants were marked as part of Limited API
of Python 3.11+. These were available in 3.11.0 with
Py_LIMITED_API defined for 3.11, and are necessary to use the
buffer API.
- Fix use-after-free in Py_SetPythonHome(NULL),
Py_SetProgramName(NULL) and _Py_SetProgramFullPath(NULL)
function calls. Issue reported by Benedikt Reinartz. Patch by
Victor Stinner.
- Py_InitializeEx now correctly calls PyConfig_Clear after
initializing the interpreter (the omission didn’t cause a
memory leak only because none of the dynamically allocated
config fields are populated by the wrapper function)
- Removed upstreamed patches:
- 98437-sphinx.locale._-as-gettext-in-pyspecific.patch
- CVE-2022-45061-DoS-by-IDNA-decode.patch
* Wed Nov 09 2022 Matej Cepl <mcepl@suse.com>
- Add CVE-2022-45061-DoS-by-IDNA-decode.patch to avoid
CVE-2022-45061 (bsc#1205244) allowing DoS by IDNA decoding
extremely long domain names.
* Tue Oct 25 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.0 (overall changes from 3.10.*):
- General changes
- PEP 657 -- Include Fine-Grained Error Locations in
Tracebacks
- PEP 654 -- Exception Groups and except*
- PEP 680 -- tomllib: Support for Parsing TOML in the
Standard Library
- gh-90908 -- Introduce task groups to asyncio
- gh-34627 -- Atomic grouping ((?>...)) and possessive
quantifiers (*+, ++, ?+, {m,n}+) are now supported in
regular expressions.
- The Faster CPython Project is already yielding some
exciting results. Python 3.11 is up to 10-60% faster than
Python 3.10. On average, we measured a 1.22x speedup on the
standard benchmark suite. See Faster CPython for details.
- Typing and typing language changes
- PEP 673 -- Self Type
- PEP 646 -- Variadic Generics
- PEP 675 -- Arbitrary Literal String Type
- PEP 655 -- Marking individual TypedDict items as required
or potentially-missing
- PEP 681 -- Data Class Transforms
- (just changes from 3.11.0rc2):
- Fix multiplying a list by an integer (list *= int): detect
the integer overflow when the new allocated length is close
to the maximum size. Issue reported by Jordan Limor. Patch by
Victor Stinner.
- On Linux the multiprocessing module returns to using
filesystem backed unix domain sockets for communication
with the forkserver process instead of the Linux abstract
socket namespace. Only code that chooses to use the
“forkserver” start method is affected. Abstract sockets have
no permissions and could allow any user on the system in the
same network namespace (often the whole system) to inject
code into the multiprocessing forkserver process. This was
a potential privilege escalation. Filesystem based socket
permissions restrict this to the forkserver process user as
was the default in Python 3.8 and earlier. This prevents
Linux CVE-2022-42919.
- Fix an issue where several frame objects could be backed by
the same interpreter frame, possibly leading to corrupted
memory and hard crashes of the interpreter.
- Fix possible data corruption or crashes when accessing the
f_back member of newly-created generator or coroutine frames.
- Fix a crash occurring when PyEval_GetFrame() is called while
the topmost Python frame is in a partially-initialized state.
- Fix command line parsing: reject -X int_max_str_digits option
with no value (invalid) when the PYTHONINTMAXSTRDIGITS
environment variable is set to a valid limit. Patch by Victor
Stinner.
- Fix undefined behaviour in _testcapimodule.c.
- When ValueError is raised if an integer is larger than the
limit, mention the sys.set_int_max_str_digits() function in
the error message. Patch by Victor Stinner.
- Correctly raise SyntaxError on exception groups (PEP 654) on
python versions prior to 3.11
- Document some places where an assignment expression needs
parentheses.
- Update the bundled copies of pip and setuptools to versions
22.3 and 65.5.0 respectively.
- fix Flag to use boundary CONFORM
- This restores previous Flag behavior of allowing flags with
non-sequential values to be combined; e.g.
- class Skip(Flag): TWO = 2 EIGHT = 8
- Skip.TWO | Skip.EIGHT -> <Skip.TWO|EIGHT: 10>
- Fix ! in c domain ref target syntax via a conf.py patch, so
it works as intended to disable ref target resolution.
- Update tutorial introduction output to use 3.10+ SyntaxError
invalid range.
* Fri Oct 21 2022 Matej Cepl <mcepl@suse.com>
- Add 98437-sphinx.locale._-as-gettext-in-pyspecific.patch to
allow building of documentation with the latest Sphinx 5.3.0
(gh#python/cpython#98366).
* Thu Sep 15 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.0rc2:
- Converting between int and str in bases other than 2
(binary), 4, 8 (octal), 16 (hexadecimal), or 32 such as base
10 (decimal) now raises a ValueError if the number of digits
in string form is above a limit to avoid potential denial of
service attacks due to the algorithmic complexity. This is
a mitigation for CVE-2020-10735.
This new limit can be configured or disabled by environment
variable, command line flag, or sys APIs. See the integer
string conversion length limitation documentation. The
default limit is 4300 digits in string form.
- Fix case of undefined behavior in ceval.c
- Do not expose KeyWrapper in _functools.
- Ensure that tracing, sys.setrace(), is turned on
immediately. In pre-release versions of 3.11, some tracing
events might have been lost when turning on tracing in a
__del__ method or interrupt.
- Fix use after free in trace refs build mode. Patch by Kumar
Aditya.
- When loading a file with invalid UTF-8 inside a multi-line
string, a correct SyntaxError is emitted.
- Make sure that incomplete frames do not show up in
tracemalloc traces.
- Remove two cases of undefined behavior, by adding NULL
checks.
- Fix possible NULL pointer dereference in
_PyThread_CurrentFrames. Patch by Kumar Aditya.
- Fix AttributeError missing name and obj attributes in
object.__getattribute__(). Patch by Philip Georgi.
- Loading a file with invalid UTF-8 will now report the broken
character at the correct location.
- Fixed a bug that caused _PyCode_GetExtra to return garbage
for negative indexes. Patch by Pablo Galindo
- Fix a deadlock in PyGILState_Ensure() when allocating new
thread state. Patch by Kumar Aditya.
- PyType_Ready() now initializes ht_cached_keys and performs
additional checks to ensure that type objects are properly
configured. This avoids crashes in 3rd party packages that
don’t use regular API to create new types.
- Skip over incomplete frames in PyThreadState_GetFrame().
- Fix format string in _PyPegen_raise_error_known_location that
can lead to memory corruption on some 64bit systems. The
function was building a tuple with i (int) instead of n
(Py_ssize_t) for Py_ssize_t arguments.
- Fix misleading contents of error message when converting an
all-whitespace string to float.
- ast.parse() will no longer parse function definitions with
positional-only params when passed feature_version less than
(3, 8). Patch by Shantanu Jain.
- Fix incorrect error message in the io module.
- Fix the faulthandler implementation of
faulthandler.register(signal, chain=True) if the sigaction()
function is not available: don’t call the previous signal
handler if it’s NULL. Patch by Victor Stinner.
- Correct conversion of numbers.Rational’s to float.
- Fix TypeVarTuple.__typing_prepare_subst__. TypeError was not
raised when using more than one TypeVarTuple, like [*T, *V]
in type alias substitutions.
- Fix asyncio.streams.StreamReaderProtocol to keep a strong
reference to the created task, so that it’s not garbage
collected
- Fix a performance regression in logging
TimedRotatingFileHandler. Only check for special files when
the rollover time has passed.
- Fix unused localName parameter in the Attr class in
xml.dom.minidom.
- Fix incorrect condition that causes sys.thread_info.name to
be wrong on pthread platforms.
- Remove an incompatible change from bpo-28080 that caused a
regression that ignored the utf8 in ZipInfo.flag_bits. Patch
by Pablo Galindo.
- Fix asyncio.Runner to call asyncio.set_event_loop() only
once to avoid calling attach_loop() multiple times on child
watchers. Patch by Kumar Aditya.
- Fix unittest.IsolatedAsyncioTestCase to set event loop before
calling setup functions. Patch by Kumar Aditya.
- When a task catches asyncio.CancelledError and raises some
other error, the other error should generally not silently be
suppressed.
- Fail gracefully if EPERM or ENOSYS is raised when loading
crypt methods. This may happen when trying to load MD5 on a
Linux kernel with FIPS enabled.
- Allow asyncio.StreamWriter.drain() to be awaited concurrently
by multiple tasks. Patch by Kumar Aditya.
- Fix ast.unparse() when ImportFrom.level is None
- Improve discoverability of the higher level
concurrent.futures module by providing clearer links from the
lower level threading and multiprocessing modules.
- What’s New 3.11 now has instructions for how to provide
compiler and linker flags for Tcl/Tk and OpenSSL on RHEL 7
and CentOS 7.
- Mitigate the inherent race condition from using
find_unused_port() in testSockName() by trying to find an
unused port a few times before failing. Patch by Ross Burton.
- Build and test with OpenSSL 1.1.1q
- Use support-expat-CVE-2022-25236-patched.patch from the current
version of gh#python/cpython#93900 instead of the old
support-expat-245.patch.
- Reapply fix_configure_rst.patch.
* Mon Sep 05 2022 Andreas Schwab <schwab@suse.de>
- Increase testsuite timeout for test_freeze_simple_script
* Sat Aug 20 2022 Matej Cepl <mcepl@suse.com>
- fix import_failed.map to refer to the python 3.11 package versions
* Sat Aug 20 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.0rc1:
- Core and Builtins
- Update code object hashing and equality to consider all
debugging and exception handling tables. This fixes an
issue where certain non-identical code objects could be
“deduplicated” during compilation.
- _PyPegen_Parser_New now properly detects token memory
allocation errors. Patch by Honglin Zhu.
- Run Python code in tracer/profiler function at full
speed. Fixes slowdown in earlier versions of 3.11.
- Emit a warning in debug mode if an object does not call
PyObject_GC_UnTrack() before deallocation. Patch by Pablo
Galindo.
- Prevented crashes in the AST constructor when
compiling some absurdly long expressions like
"+0"*1000000. RecursionError is now raised instead. Patch
by Pablo Galindo
- ast.AST node positions are now validated when provided to
compile() and other related functions. If invalid positions
are detected, a ValueError will be raised.
- Fix error detection in some builtin functions when keyword
argument name is an instance of a str subclass with
overloaded __eq__ and __hash__. Previously it could cause
SystemError or other undesired behavior.
- Library
- Update bundled pip to 22.2.2.
- Fix asyncio.TaskGroup to propagate exception when
asyncio.CancelledError was replaced with another exception
by a context manger. Patch by Kumar Aditya and Guido van
Rossum.
- Update bundled pip to 22.2.1.
- Fix GC crash when deallocating _lsprof.Profiler by
untracking it before calling any callbacks. Patch by Kumar
Aditya.
- Fix asyncio.run() for asyncio.Task implementations without
uncancel() method. Patch by Kumar Aditya.
- Fix check for existence of os.EFD_CLOEXEC, os.EFD_NONBLOCK
and os.EFD_SEMAPHORE flags on older kernel versions where
these flags are not present. Patch by Kumar Aditya.
- Fix concurrent.futures.Executor.map() to cancel the
currently waiting on future on an error - e.g. TimeoutError
or KeyboardInterrupt.
- Ensure that timeouts scheduled with asyncio.Timeout that
have already expired are delivered promptly.
- Suppress writing an XML declaration in open files
in ElementTree.write() with encoding='unicode' and
xml_declaration=None.
- Fix findtext in the xml module to only give an empty string
when the text attribute is set to None.
- Documentation
- Fix stylesheet not working in Windows CHM htmlhelp docs
and add warning that they are deprecated. Contributed by
C.A.M. Gerlach.
- Update library documentation with availability information
on WebAssembly platforms wasm32-emscripten and wasm32-wasi.
- Use consistent syntax for platform availability. The
directive now supports a content body and emits a warning
when it encounters an unknown platform.
- Document a limitation in ThreadPoolExecutor where its exit
handler is executed before any handlers in atexit.
- Tests
- Lib/test/test_asyncio/test_ssl.py exposed a bug in the
macOS kernel where intense concurrent load on non-blocking
sockets occasionally causes errno.ENOBUFS (“No buffer space
available”) to be emitted. FB11063974 filed with Apple, in
the mean time as a workaround buffer size used in tests on
macOS is decreased to avoid intermittent failures. Patch by
Fantix King.
- Fix problem with test_ssl test_get_ciphers on systems that
require perfect forward secrecy (PFS) ciphers.
- Add a regression test for re exponentional slowdown when
using rjsmin.
- Build
- Fix a regression in configure script that caused some
header checks to ignore custom CPPFLAGS. The regression was
introduced in gh-94802.
- wasm32-wasi builds no longer depend on WASIX’s pthread
stubs. Python now has its own stubbed pthread API.
- Python now detects missing dup function in WASI and works
around some missing errno, select, and socket constants.
- Python now skips missing socket functions and methods on
WASI. WASI can only create sockets from existing fd /
accept and has no netdb.
- Platforms wasm32-unknown-emscripten and wasm32-unknown-wasi
have been promoted to PEP 11 tier 3 platform support.
- IDLE
- Document handling of extensions in Save As dialogs.
- Include prompts when saving Shell (interactive input and
output).
- Fix the Shell context menu copy-with-prompts bug of copying
an extra line when one selects whole lines.
- In the Edit menu, move Select All and add a new separator.
- Enable using IDLE’s module browser with .pyw files.
- Add .pyi as a recognized extension for IDLE on macOS. This
allows opening stub files by double clicking on them in the
Finder.
- C API
- Restore the 3.10 behavior for multiple inheritance of C
extension classes that store their dictionary at the end of
the struct.
- Added PyCode_GetVarnames(), PyCode_GetCellvars() and
PyCode_GetFreevars() for accessing co_varnames, co_cellvars
and co_freevars respectively via the C API.
* Tue Jul 26 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.0b5:
- Core and Builtins
- gh-93351: ast.AST node positions are now validated when
provided to compile() and other related functions. If
invalid positions are detected, a ValueError will be
raised.
- gh-94438: Fix an issue that caused extended opcode
arguments and some conditional pops to be ignored when
calculating valid jump targets for assignments to the
f_lineno attribute of frame objects. In some cases, this
could cause inconsistent internal state, resulting in a
hard crash of the interpreter.
- gh-95060: Undocumented PyCode_Addr2Location function now
properly returns when addrq argument is less than zero.
- gh-95113: Replace all EXTENDED_ARG_QUICK instructions
with basic EXTENDED_ARG instructions in unquickened
code. Consumers of non-adaptive bytecode should be able to
handle extended arguments the same way they were handled in
CPython 3.10 and older.
- gh-91409: Fix incorrect source location info caused by
certain optimizations in the bytecode compiler.
- gh-94036: Fix incorrect source location info for some
multi-line attribute accesses and method calls.
- gh-94739: Allow jumping within, out of, and across
exception handlers in the debugger.
- gh-94949: ast.parse() will no longer parse parenthesized
context managers when passed feature_version less than (3,
9). Patch by Shantanu Jain.
- gh-94947: ast.parse() will no longer parse assignment
expressions when passed feature_version less than (3,
8). Patch by Shantanu Jain.
- gh-91256: Ensures the program name is known for help text
during interpreter startup.
- gh-94869: Fix the column offsets for some expressions in
multi-line f-strings ast nodes. Patch by Pablo Galindo.
- gh-94822: Fix an issue where lookups of metaclass
descriptors may be ignored when an identically-named
attribute also exists on the class itself.
- gh-91153: Fix an issue where a bytearray item assignment
could crash if it’s resized by the new value’s __index__()
method.
- gh-90699: Fix reference counting bug in
bool.__repr__(). Patch by Kumar Aditya.
- Library
- gh-95087: Fix IndexError in parsing invalid date in the
email module.
- gh-95199: Upgrade bundled setuptools to 63.2.0.
- gh-95194: Upgrade bundled pip to 22.2.
- gh-95132: Fix a sqlite3 regression where *args and **kwds
were incorrectly relayed from connect() to the Connection
factory. The regression was introduced in 3.11a1 with PR
24421 (gh-85128). Patch by Erlend E. Aasland.`
- gh-93157: Fix fileinput module didn’t support errors option
when inplace is true.
- gh-95105: wsgiref.types.InputStream.__iter__() should
return Iterator[bytes], not Iterable[bytes]. Patch by
Shantanu Jain.
- gh-94857: Fix refleak in
_io.TextIOWrapper.reconfigure. Patch by Kumar Aditya.
- gh-94821: Fix binding of unix socket to empty address
on Linux to use an available address from the abstract
namespace, instead of “0”.
- gh-89988: Fix memory leak in pickle.Pickler when looking up
dispatch_table. Patch by Kumar Aditya.
- bpo-47025: Drop support for bytes on sys.path.
- Tests
- gh-95212: Make multiprocessing test case
test_shared_memory_recreate parallel-safe.
- Build
- gh-94847: Fixed _decimal module build issue on GCC when
compiling with LTO and pydebug. Debug builds no longer
force inlining of functions.
- gh-94841: Fix the possible performance regression of
PyObject_Free() compiled with MSVC version 1932.
- gh-94801: configure now uses custom flags like ZLIB_CFLAGS
and ZLIB_LIBS when searching for headers and libraries.
- gh-94773: deepfreeze.py now supports code object with
frozensets that contain incompatible, unsortable types.
- C API
- gh-94930: Fix SystemError raised when
PyArg_ParseTupleAndKeywords() is used with # in (...) but
without PY_SSIZE_T_CLEAN defined.
- gh-94864: Fix PyArg_Parse* with deprecated format units “u”
and “Z”. It returned 1 (success) when warnings are turned
into exceptions.
- gh-94731: Python again uses C-style casts for
most casting operations when compiled with
C++. This may trigger compiler warnings, if they
are enabled with e.g. -Wold-style-cast `` or
``-Wzero-as-null-pointer-constant options for g++.
* Thu Jul 21 2022 Matej Cepl <mcepl@suse.com>
- Switch from %primary_interpreter to prjconf-defined
%primary_python (gh#openSUSE/python-rpm-macros#127).
* Thu Jul 14 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.0b4:
- Fixes many bugs and adds following more significant changes
- Security
- gh-68966: The deprecated mailcap module now refuses to inject
Coreunsafe text (filenames, MIME types, parameters) into
shell Corecommands. Instead of using such text, it will
warn and act Coreas if a match was not found (or for test
commands, as if the Coretest failed). and Builtins
- gh-93516: Lazily create a table mapping bytecode offsets to
line numbers to speed up calculation of line numbers when
tracing.
- gh-93461: importlib.invalidate_caches() now drops entries
from sys.path_importer_cache with a relative path as
name. This solves a caching issue when a process changes its
current working directory.
- FileFinder no longer inserts a dot in the path, e.g.
/egg/./spam is now /egg/spam.
Library
- gh-93896: Fix asyncio.run() and
unittest.IsolatedAsyncioTestCase to always the set event loop
as it was done in Python 3.10 and earlier. Patch by Kumar
Aditya.
- gh-94101: Manual instantiation of ssl.SSLSession objects is
no longer allowed as it lead to misconfigured instances that
crashed the interpreter when attributes where accessed on
them.
- gh-83658: Make multiprocessing.Pool raise an exception if
maxtasksperchild is not None or a positive int.
- gh-61162: Clarify sqlite3 behavior when Using the connection
as a context manager.
Tools/Demos
- gh-94538: Fix Argument Clinic output to custom file
destinations. Patch by Erlend E. Aasland.
C API
- gh-93937: The following frame functions and type are now
directly available with #include <Python.h>, it’s no longer
needed to add #include <frameobject.h>:
PyFrame_Check()
PyFrame_GetBack()
PyFrame_GetBuiltins()
PyFrame_GetGenerator()
PyFrame_GetGlobals()
PyFrame_GetLasti()
PyFrame_GetLocals()
PyFrame_Type
* Tue May 31 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.11.0b2:
- many small updates
- Add patch support-expat-245.patch:
* Support Expat >= 2.4.4 (jsc#SLE-21253)
* Tue May 10 2022 Matej Cepl <mcepl@suse.com>
- Refresh bluez-devel-vendor.tar.xz
- Fix building with system-expat (gh#python/cpython#92875). Nope,
it didn't work, worked around it.
* Mon May 09 2022 Matej Cepl <mcepl@suse.com>
- Update to pre-release version 3.11.0b1:
- PEP 657 – Include Fine-Grained Error Locations in Tracebacks
- PEP 654 – Exception Groups and except*
- PEP 673 – Self Type
- PEP 646 – Variadic Generics
- PEP 680– tomllib: Support for Parsing TOML in the Standard Library
- PEP 675– Arbitrary Literal String Type
- PEP 655– Marking individual TypedDict items as required or potentially-missing
- bpo-46752– Introduce task groups to asyncio
- The Faster Cpython Project is already yielding some exciting
results. Python 3.11 is up to 10-60% faster than Python
3.10. On average, we measured a 1.22x speedup on the standard
benchmark suite. See
https://docs.python.org/3.11/whatsnew/3.11.html#faster-cpython
for details.
* Thu May 05 2022 Matej Cepl <mcepl@suse.com>
- Switch primary_interpreter from python38 to python310
* Sat Mar 26 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.10.4:
- bpo-46968: Check for the existence of the “sys/auxv.h” header
in faulthandler to avoid compilation problems in systems
where this header doesn’t exist. Patch by Pablo Galindo
- bpo-23691: Protect the re.finditer() iterator from
re-entering.
- bpo-42369: Fix thread safety of zipfile._SharedFile.tell() to
avoid a “zipfile.BadZipFile: Bad CRC-32 for file” exception
when reading a ZipFile from multiple threads.
- bpo-38256: Fix binascii.crc32() when it is compiled to use
zlib’c crc32 to work properly on inputs 4+GiB in length
instead of returning the wrong result. The workaround prior
to this was to always feed the function data in increments
smaller than 4GiB or to just call the zlib module function.
- bpo-39394: A warning about inline flags not at the start of
the regular expression now contains the position of the flag.
- bpo-47061: Deprecate the various modules listed by PEP 594:
- aifc, asynchat, asyncore, audioop, cgi, cgitb, chunk, crypt,
imghdr, msilib, nntplib, nis, ossaudiodev, pipes, smtpd,
sndhdr, spwd, sunau, telnetlib, uu, xdrlib
- bpo-2604: Fix bug where doctests using globals would fail
when run multiple times.
- bpo-45997: Fix asyncio.Semaphore re-aquiring FIFO order.
- bpo-47022: The asynchat, asyncore and smtpd modules have been
deprecated since at least Python 3.6. Their documentation and
deprecation warnings and have now been updated to note they
will removed in Python 3.12 (PEP 594).
- bpo-46421: Fix a unittest issue where if the command was
invoked as python -m unittest and the filename(s) began with
a dot (.), a ValueError is returned.
- bpo-40296: Fix supporting generic aliases in pydoc.
- Update to 3.10.3:
- bpo-46940: Avoid overriding AttributeError metadata
information for nested attribute access calls. Patch by Pablo
Galindo.
- bpo-46852: Rename the private undocumented
float.__set_format__() method to float.__setformat__() to fix
a typo introduced in Python 3.7. The method is only used by
test_float. Patch by Victor Stinner.
- bpo-46794: Bump up the libexpat version into 2.4.6
- bpo-46820: Fix parsing a numeric literal immediately (without
spaces) followed by “not in” keywords, like in 1not in x. Now
the parser only emits a warning, not a syntax error.
- bpo-46762: Fix an assert failure in debug builds when a ‘<’,
‘>’, or ‘=’ is the last character in an f-string that’s
missing a closing right brace.
- bpo-46724: Make sure that all backwards jumps use the
JUMP_ABSOLUTE instruction, rather than JUMP_FORWARD with an
argument of (2**32)+offset.
- bpo-46732: Correct the docstring for the __bool__() method.
Patch by Jelle Zijlstra.
- bpo-46707: Avoid potential exponential backtracking when
producing some syntax errors involving lots of brackets.
Patch by Pablo Galindo.
- bpo-40479: Add a missing call to va_end() in
Modules/_hashopenssl.c.
- bpo-46615: When iterating over sets internally in
setobject.c, acquire strong references to the resulting items
from the set. This prevents crashes in corner-cases of
various set operations where the set gets mutated.
- bpo-45773: Remove two invalid “peephole” optimizations from
the bytecode compiler.
- bpo-43721: Fix docstrings of getter, setter, and deleter to
clarify that they create a new copy of the property.
- bpo-46503: Fix an assert when parsing some invalid N escape
sequences in f-strings.
- bpo-46417: Fix a race condition on setting a type __bases__
attribute: the internal function add_subclass() now gets the
PyTypeObject.tp_subclasses member after calling
PyWeakref_NewRef() which can trigger a garbage collection
which can indirectly modify PyTypeObject.tp_subclasses. Patch
by Victor Stinner.
- bpo-46383: Fix invalid signature of _zoneinfo’s module_free
function to resolve a crash on wasm32-emscripten platform.
- bpo-46070: Py_EndInterpreter() now explicitly untracks all
objects currently tracked by the GC. Previously, if an object
was used later by another interpreter, calling
PyObject_GC_UnTrack() on the object crashed if the previous
or the next object of the PyGC_Head structure became
a dangling pointer. Patch by Victor Stinner.
- bpo-46339: Fix a crash in the parser when retrieving the
error text for multi-line f-strings expressions that do not
start in the first line of the string. Patch by Pablo Galindo
- bpo-46240: Correct the error message for unclosed parentheses
when the tokenizer doesn’t reach the end of the source when
the error is reported. Patch by Pablo Galindo
- bpo-46091: Correctly calculate indentation levels for lines
with whitespace character that are ended by line continuation
characters. Patch by Pablo Galindo
- bpo-43253: Fix a crash when closing transports where the
underlying socket handle is already invalid on the Proactor
event loop.
- bpo-47004: Apply bugfixes from importlib_metadata 4.11.3,
including bugfix for EntryPoint.extras, which was returning
match objects and not the extras strings.
- bpo-46985: Upgrade pip wheel bundled with ensurepip (pip
22.0.4)
- bpo-46968: faulthandler: On Linux 5.14 and newer, dynamically
determine size of signal handler stack size CPython allocates
using getauxval(AT_MINSIGSTKSZ). This changes allows for
Python extension’s request to Linux kernel to use AMX_TILE
instruction set on Sapphire Rapids Xeon processor to succeed,
unblocking use of the ISA in frameworks.
- bpo-46955: Expose asyncio.base_events.Server as
asyncio.Server. Patch by Stefan Zabka.
- bpo-23325: The signal module no longer assumes that SIG_IGN
and SIG_DFL are small int singletons.
- bpo-46932: Update bundled libexpat to 2.4.7
- bpo-25707: Fixed a file leak in
xml.etree.ElementTree.iterparse() when the iterator is not
exhausted. Patch by Jacob Walls.
- bpo-44886: Inherit asyncio proactor datagram transport from
asyncio.DatagramTransport.
- bpo-46827: Support UDP sockets in asyncio.loop.sock_connect()
for selector-based event loops. Patch by Thomas Grainger.
- bpo-46811: Make test suite support Expat >=2.4.5
- bpo-46252: Raise TypeError if ssl.SSLSocket is passed to
transport-based APIs.
- bpo-46784: Fix libexpat symbols collisions with user
dynamically loaded or statically linked libexpat in embedded
Python.
- bpo-39327: shutil.rmtree() can now work with VirtualBox
shared folders when running from the guest operating-system.
- bpo-46756: Fix a bug in
urllib.request.HTTPPasswordMgr.find_user_password() and
urllib.request.HTTPPasswordMgrWithPriorAuth.is_authenticated()
which allowed to bypass authorization. For example, access to
URI example.org/foobar was allowed if the user was authorized
for URI example.org/foo.
- bpo-46643: In typing.get_type_hints(), support evaluating
stringified ParamSpecArgs and ParamSpecKwargs annotations.
Patch by Gregory Beauregard.
- bpo-45863: When the tarfile module creates a pax format
archive, it will put an integer representation of timestamps
in the ustar header (if possible) for the benefit of older
unarchivers, in addition to the existing full-precision
timestamps in the pax extended header.
- bpo-46676: Make typing.ParamSpec args and kwargs equal to
themselves. Patch by Gregory Beauregard.
- bpo-46672: Fix NameError in asyncio.gather() when initial
type check fails.
- bpo-46655: In typing.get_type_hints(), support evaluating
bare stringified TypeAlias annotations. Patch by Gregory
Beauregard.
- bpo-45948: Fixed a discrepancy in the C implementation of the
xml.etree.ElementTree module. Now, instantiating an
xml.etree.ElementTree.XMLParser with a target=None keyword
provides a default xml.etree.ElementTree.TreeBuilder target
as the Python implementation does.
- bpo-46521: Fix a bug in the codeop module that was
incorrectly identifying invalid code involving string quotes
as valid code.
- bpo-46581: Brings ParamSpec propagation for GenericAlias in
line with Concatenate (and others).
- bpo-46591: Make the IDLE doc URL on the About IDLE dialog
clickable.
- bpo-46400: expat: Update libexpat from 2.4.1 to 2.4.4
- bpo-46487: Add the get_write_buffer_limits method to
asyncio.transports.WriteTransport and to the SSL transport.
- bpo-45173: Note the configparser deprecations will be removed
in Python 3.12.
- bpo-46539: In typing.get_type_hints(), support evaluating
stringified ClassVar and Final annotations inside Annotated.
Patch by Gregory Beauregard.
- bpo-46491: Allow typing.Annotated to wrap typing.Final and
typing.ClassVar. Patch by Gregory Beauregard.
- bpo-46436: Fix command-line option -d/--directory in module
http.server which is ignored when combined with command-line
option --cgi. Patch by Géry Ogam.
- bpo-41403: Make mock.patch() raise a TypeError with
a relevant error message on invalid arg. Previously it
allowed a cryptic AttributeError to escape.
- bpo-46474: In importlib.metadata.EntryPoint.pattern, avoid
potential REDoS by limiting ambiguity in consecutive
whitespace.
- bpo-46469: asyncio generic classes now return
types.GenericAlias in __class_getitem__ instead of the same
class.
- bpo-46434: pdb now gracefully handles help when __doc__ is
missing, for example when run with pregenerated optimized
.pyc files.
- bpo-46333: The __eq__() and __hash__() methods of
typing.ForwardRef now honor the module parameter of
typing.ForwardRef. Forward references from different modules
are now differentiated.
- bpo-46246: Add missing __slots__ to
importlib.metadata.DeprecatedList. Patch by Arie Bovenberg.
- bpo-46266: Improve day constants in calendar.
- Now all constants (MONDAY … SUNDAY) are documented, tested,
and added to __all__.
- bpo-46232: The ssl module now handles certificates with bit
strings in DN correctly.
- bpo-43118: Fix a bug in inspect.signature() that was causing
it to fail on some subclasses of classes with
a __text_signature__ referencing module globals. Patch by
Weipeng Hong.
- bpo-26552: Fixed case where failing asyncio.ensure_future()
did not close the coroutine. Patch by Kumar Aditya.
- bpo-21987: Fix an issue with tarfile.TarFile.getmember()
getting a directory name with a trailing slash.
- bpo-20392: Fix inconsistency with uppercase file extensions
in MimeTypes.guess_type(). Patch by Kumar Aditya.
- bpo-46080: Fix exception in argparse help text generation if
a argparse.BooleanOptionalAction argument’s default is
argparse.SUPPRESS and it has help specified. Patch by Felix
Fontein.
- bpo-44439: Fix .write() method of a member file in ZipFile,
when the input data is an object that supports the buffer
protocol, the file length may be wrong.
- bpo-45703: When a namespace package is imported before
another module from the same namespace is created/installed
in a different sys.path location while the program is
running, calling the importlib.invalidate_caches() function
will now also guarantee the new module is noticed.
- bpo-24959: Fix bug where unittest sometimes drops frames from
tracebacks of exceptions raised in tests.
- bpo-44791: Fix substitution of ParamSpec in Concatenate with
different parameter expressions. Substitution with a list of
types returns now a tuple of types. Substitution with
Concatenate returns now a Concatenate with concatenated lists
of arguments.
- bpo-14156: argparse.FileType now supports an argument of ‘-’
in binary mode, returning the .buffer attribute of
sys.stdin/sys.stdout as appropriate. Modes including ‘x’ and
‘a’ are treated equivalently to ‘w’ when argument is ‘-’.
Patch contributed by Josh Rosenberg
- bpo-46463: Fixes escape4chm.py script used when building the
CHM documentation file
- bpo-46913: Fix test_faulthandler.test_sigfpe() if Python is
built with undefined behavior sanitizer (UBSAN): disable
UBSAN on the faulthandler_sigfpe() function. Patch by Victor
Stinner.
- bpo-46708: Prevent default asyncio event loop policy
modification warning after test_asyncio execution.
- bpo-46678: The function make_legacy_pyc in
Lib/test/support/import_helper.py no longer fails when
PYTHONPYCACHEPREFIX is set to a directory on a different
device from where tempfiles are stored.
- bpo-46616: Ensures test_importlib.test_windows cleans up
registry keys after completion.
- bpo-44359: test_ftplib now silently ignores socket errors to
prevent logging unhandled threading exceptions. Patch by
Victor Stinner.
- bpo-46542: Fix a Python crash in test_lib2to3 when using
Python built in debug mode: limit the recursion limit. Patch
by Victor Stinner.
- bpo-46576: test_peg_generator now disables compiler
optimization when testing compilation of its own C extensions
to significantly speed up the testing on non-debug builds of
CPython.
- bpo-46542: Fix test_json tests checking for RecursionError:
modify these tests to use support.infinite_recursion(). Patch
by Victor Stinner.
- bpo-13886: Skip test_builtin PTY tests on non-ASCII
characters if the readline module is loaded. The readline
module changes input() behavior, but test_builtin is not
intented to test the readline module. Patch by Victor
Stinner.
- bpo-38472: Fix GCC detection in setup.py when
cross-compiling. The C compiler is now run with LC_ALL=C.
Previously, the detection failed with a German locale.
- bpo-46513: configure no longer uses AC_C_CHAR_UNSIGNED macro
and pyconfig.h no longer defines reserved symbol
__CHAR_UNSIGNED__.
- bpo-45296: Clarify close, quit, and exit in IDLE. In the File
menu, ‘Close’ and ‘Exit’ are now ‘Close Window’ (the current
one) and ‘Exit’ is now ‘Exit IDLE’ (by closing all windows).
In Shell, ‘quit()’ and ‘exit()’ mean ‘close Shell’. If there
are no other windows, this also exits IDLE.
- bpo-45447: Apply IDLE syntax highlighting to pyi files. Patch
by Alex Waygood and Terry Jan Reedy.
- bpo-46433: The internal function _PyType_GetModuleByDef now
correctly handles inheritance patterns involving static
types.
- bpo-14916: Fixed bug in the tokenizer that prevented
PyRun_InteractiveOne from parsing from the provided FD.
- Remove upstreamed patches:
- support-expat-245.patch
* Tue Feb 22 2022 Steve Kowalik <steven.kowalik@suse.com>
- Add patch support-expat-245.patch:
* Support Expat >= 2.4.5
* Tue Feb 15 2022 Matej Cepl <mcepl@suse.com>
- bsc#1195831 Obsolete older "most modern" versions of python
packages (python39 for python310 and so forth). For next
versions it is necessary just to edit the macro.
* Tue Jan 25 2022 Matej Cepl <mcepl@suse.com>
- Remove second superfluous BR rpm-build-python
* Tue Jan 25 2022 Matej Cepl <mcepl@suse.com>
- Remove second superfluous BR rpm-build-python
- Add fix_configure_rst.patch, which removes duplicate link
targets and make documentation with old Sphinx in SLE
- Skip test_capi (bsc#1195140 and bpo#37169)
* Wed Jan 19 2022 Matej Cepl <mcepl@suse.com>
- Update to 3.10.2:
Bugfix only
- bpo#46347 memory leak in PyEval_EvalCodeEx (especially
visible with Cython code)
- and many others
* Wed Dec 08 2021 Matej Cepl <mcepl@suse.com>
- Upgrade to 3.10.1 (jsc#SLE-18038):
- PEP 623 – Deprecate and prepare for the removal of the wstr
member in PyUnicodeObject.
- PEP 604 – Allow writing union types as X | Y
- PEP 612 – Parameter Specification Variables
- PEP 626 – Precise line numbers for debugging and other tools.
- PEP 618 – Add Optional Length-Checking To zip.
- bpo-12782: Parenthesized context managers are now officially
allowed.
- PEP 632 – Deprecate distutils module.
- PEP 613 – Explicit Type Aliases
- PEP 634 – Structural Pattern Matching: Specification
- PEP 635 – Structural Pattern Matching: Motivation and
Rationale
- PEP 636 – Structural Pattern Matching: Tutorial
- PEP 644 – Require OpenSSL 1.1.1 or newer
- PEP 624 – Remove Py_UNICODE encoder APIs
- PEP 597 – Add optional EncodingWarning
- Patches readjusted:
- bpo-31046_ensurepip_honours_prefix.patch
- python-3.3.0b1-fix_date_time_compiler.patch
* Sat Dec 04 2021 Matej Cepl <mcepl@suse.com>
- Remove pdb_adjust_breakpoints.patch and instead just adjust location
of the test breakpoint in Lib/test/test_pdb.py via sed, because we
have shortened Lib/pdb.py by removing the shebang (bpo#45964).
* Thu Dec 02 2021 Matej Cepl <mcepl@suse.com>
- Add pdb_adjust_breakpoints.patch fixing expectd results in
test_pdb_breakpoints_preserved_across_interactive_sessions
(bpo#45964).
* Mon Nov 29 2021 Matej Cepl <mcepl@suse.com>
- Remove shebangs from from python-base libraries in _libdir
(bsc#1193179).
- Readjust patches:
- bpo-31046_ensurepip_honours_prefix.patch
- decimal.patch
- python-3.3.0b1-fix_date_time_compiler.patch
* Tue Nov 16 2021 Matej Cepl <mcepl@suse.com>
- Move rpm-build-python construct to correct place.
* Wed Oct 13 2021 Dominique Leuenberger <dimstar@opensuse.org>
- BuildRequire rpm-build-python: The provider to inject python(abi)
has been moved there. rpm-build pulls rpm-build-python
automatically in when building anything against python3-base, but
this implies that the initial build of python3-base does not
trigger the automatic installation.
* Tue Oct 05 2021 Matej Cepl <mcepl@suse.com>
- Final release of 3.10.0:
Complete list on https://www.python.org/downloads/release/python-3100/,
but highlights are:
- PEP 623 – Deprecate and prepare for the removal of the wstr
member in PyUnicodeObject.
- PEP 604 – Allow writing union types as X | Y
- PEP 612 – Parameter Specification Variables
- PEP 626 – Precise line numbers for debugging and other
tools.
- PEP 618 – Add Optional Length-Checking To zip.
- PEP 632 – Deprecate distutils module.
- PEP 613 – Explicit Type Aliases
- PEP 634 – Structural Pattern Matching: Specification
- PEP 635 – Structural Pattern Matching: Motivation and
Rationale
- PEP 636 – Structural Pattern Matching: Tutorial
- PEP 644 – Require OpenSSL 1.1.1 or newer
- PEP 624 – Remove Py_UNICODE encoder APIs
- PEP 597 – Add optional EncodingWarning
- bpo-12782: Parenthesized context managers are now officially
allowed.
* Mon Aug 30 2021 Matej Cepl <mcepl@suse.com>
- Switch on option --with-system-libmpdec (bsc#1189356).
* Fri Aug 27 2021 Andreas Schwab <schwab@suse.de>
- Reenable profileopt with qemu emulation, test_faulthandler is no longer
run during profiling
* Thu Aug 12 2021 Andreas Schwab <schwab@suse.de>
- test_faulthandler is still problematic under qemu linux-user emulation,
disable it there
* Wed Aug 11 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.10.0rc1 (the penultimate prerelease), which contains
plenty of small bugfixes among others:
- bpo#38605: from __future__ import annotations (PEP 563) used to be
on this list in previous pre-releases but it has been postponed to
Python 3.11 due to some compatibility concerns.
- bpo-44600: Fix incorrect line numbers while tracing some failed
patterns in match statements. Patch by Charles Burkland.
- plenty of modifications in types.Union
* Wed Jul 21 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.10.0b4:
https://docs.python.org/3.10/whatsnew/changelog.html#python-3-10-0-beta-4
- Remove python3-imp-returntype.patch which has been upstreamed.
* Mon Jun 07 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.10.0b2:
- PEP 623 -- Deprecate and prepare for the removal of the wstr
member in PyUnicodeObject.
- PEP 604 -- Allow writing union types as X | Y
- PEP 612 -- Parameter Specification Variables
- PEP 626 -- Precise line numbers for debugging and other
tools.
- PEP 618 -- Add Optional Length-Checking To zip.
- bpo-12782: Parenthesized context managers are now officially
allowed.
- PEP 632 -- Deprecate distutils module.
- PEP 613 -- Explicit Type Aliases
- PEP 634 -- Structural Pattern Matching: Specification
- PEP 635 -- Structural Pattern Matching: Motivation and
Rationale
- PEP 636 -- Structural Pattern Matching: Tutorial
- PEP 644 -- Require OpenSSL 1.1.1 or newer
- PEP 624 -- Remove Py_UNICODE encoder APIs
- PEP 597 -- Add optional EncodingWarning
- Removed patches (assumed upstream):
- sphinx-update-removed-function.patch
* Sat Jun 05 2021 Matej Cepl <mcepl@suse.com>
- Revert previous skip over test_capi
- Add skip-test_pyobject_freed_is_freed.patch to skip failing
test on SLE-15.
* Fri Jun 04 2021 Dirk Müller <dmueller@suse.com>
- allow build with Sphinx >= 3.x
* Wed Jun 02 2021 Dan Čermák <dcermak@suse.com>
- Exclude test_capi on Leap (test fails there)
* Fri May 21 2021 Matej Cepl <mcepl@suse.com>
- Stop providing "python" symbol (bsc#1185588), which means
python2 currently.
* Wed May 05 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.9.5:
* 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.
- Refreshed patches:
- bpo-31046_ensurepip_honours_prefix.patch
- python-3.3.0b1-fix_date_time_compiler.patch
- Add vendorized files from bluez-devel to enable building support for
Bluetooth.
* Sun May 02 2021 Ben Greiner <code@bnavigator.de>
- Make sure to close the import_failed.map file after the exception
has been raised in order to avoid ResourceWarnings when the
failing import is part of a try...except block.
* Wed Apr 28 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.9.4:
- 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).
- 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.
- bpo#42988 (bsc#1183374) 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.
- 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.
- 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.
- 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.
- 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.
- bpo#43617: Improve configure.ac: Check for presence of
autoconf-archive package and remove our copies of M4 macros.
- 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.
* Fri Feb 19 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.9.2:
- bpo#42938 (bsc#1181126): Avoid static buffers when computing
the repr of ctypes.c_double and ctypes.c_longdouble
values. This issue was assigned CVE-2021-3177.
- bpo#42967 (bsc#1182379): Fix web cache poisoning
vulnerability by defaulting the query args separator to &,
and allowing the user to choose a custom separator. This
issue was assigned CVE-2021-23336.
- Upstreamed patches were removed:
- CVE-2021-3177-buf_ovrfl_PyCArg_repr.patch
- bsc1167501-invalid-alignment.patch
- skip_random_failing_tests.patch
- CVE-2019-5010-null-defer-x509-cert-DOS.patch
* Tue Feb 09 2021 Steve Kowalik <steven.kowalik@suse.com>
- Add Obsoletes for python3-base when primary interpreter is set to
properly replace it during upgrades. (bsc#1181324)
* Mon Feb 08 2021 Matej Cepl <mcepl@suse.com>
- Update to 3.9.1:
Security bugs:
- Prevented potential DoS attack via CPU and RAM exhaustion
when processing malformed Apple Property List files in binary
format.
- The plistlib module no longer accepts entity declarations in
XML plist files to avoid XML vulnerabilities. This should not
affect users as entity declarations are not used in regular
plist files.
- Add volatile to the accumulator variable in
hmac.compare_digest, making constant-time-defeating
optimizations less likely.
Core and Builtins
- Allow assignment expressions in set literals and set
comprehensions as per PEP 572. Patch by Pablo Galindo.
- Fix a regression introduced by the new parser, where an
unparenthesized walrus operator was not allowed within
generator expressions.
- types.GenericAlias objects can now be the targets of
weakrefs.
- Fixed a bug in the PEG parser that was causing crashes in
debug mode. Now errors are checked in left-recursive rules to
avoid cases where such errors do not get handled in time and
appear as long-distance crashes in other places.
- Fixed a possible crash in the PEG parser when checking for
the ‘!=’ token in the barry_as_flufl rule. Patch by Pablo
Galindo.
- Fix handling of errors during creation of PyFunctionObject,
which resulted in operations on uninitialized memory. Patch
by Yonatan Goldschmidt.
- Fix a bug in the parser, where a curly brace following
a primary didn’t fail immediately. This led to invalid
expressions like a {b} to throw a SyntaxError with a wrong
offset, or invalid expressions ending with a curly brace like
a { to not fail immediately in the REPL.
- Fix possible buffer overflow in the new parser when checking
for continuation lines. Patch by Pablo Galindo.
- Run the parser two times. On the first run, disable all the
rules that only generate better error messages to gain
performance. If there’s a parse failure, run the parser
a second time with those enabled.
- Document the default implementation of object.__eq__.
- Fix peephole optimizer misoptimize conditional jump
+ JUMP_IF_NOT_EXC_MATCH pair.
- The garbage collector now tracks all user-defined classes.
Patch by Brandt Bucher.
- Fixed potential issues with removing not completely
initialized module from sys.modules when import fails.
- Star-unpacking is now allowed for with item’s targets in the
PEG parser.
- Fixed stack overflow in issubclass() and isinstance() when
getting the __bases__ attribute leads to infinite recursion.
- When loading a native module and a load failure occurs,
prevent a possible UnicodeDecodeError when not running in
a UTF-8 locale by decoding the load error message using the
current locale’s encoding.
- Correctly count control blocks in ‘except’ in compiler.
Ensures that a syntax error, rather a fatal error, occurs for
deeply nested, named exception handlers.
Library
- 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.
- CGIHTTPRequestHandler.run_cgi() HTTP_ACCEPT improperly
parsed. Replace the special purpose getallmatchingheaders
with generic get_all method and add relevant tests.
- 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. PR by Irit Katriel.
- Fix handling of trailing comments by inspect.getsource().
- ChainMap.__iter__ no longer calls __getitem__ on underlying
maps
- 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.
- 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.
- Clarify the error message for asyncio.IncompleteReadError
when expected is None.
- 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.
- Fixed tkinter.ttk.Style.map(). The function accepts now the
representation of the default state as empty sequence (as
returned by Style.map()). The structure of the result is now
the same on all platform and does not depend on the value of
wantobjects.
- Fix various issues with typing.Literal parameter handling
(flatten, deduplicate, use type to cache key). Patch provided
by Yurii Karabas.
- Fix the threading.Thread class at fork: do nothing if the
thread is already stopped (ex: fork called at Python exit).
Previously, an error was logged in the child process.
- The onerror callback from shutil.rmtree now receives correct
function when os.open fails.
- Fix os.sendfile() on illumos.
- Fixed writing binary Plist files larger than 4 GiB.
- The repr() of typing types containing Generic Alias Types
previously did not show the parameterized types in the
GenericAlias. They have now been changed to do so.
- webbrowser: Ignore NotADirectoryError when calling
xdg-settings.
- binhex.binhex() consisently writes macOS 9 line endings.
- Fix a stack overflow error for asyncio Task or Future repr().
- The overflow occurs under some circumstances when a Task or
Future recursively returns itself.
- Fix memory leak in subprocess.Popen() in case an uid (gid)
specified in user (group, extra_groups) overflows uid_t
(gid_t).
- Improve asyncio.wait function to create the futures set just
one time.
- InvalidFileException and RecursionError are now the only
errors caused by loading malformed binary Plist file
(previously ValueError and TypeError could be raised in some
specific cases).
- Pickling heap types implemented in C with protocols 0 and
1 raises now an error instead of producing incorrect data.
- plistlib: fix parsing XML plists with hexadecimal integer
values
- Fix an incorrectly formatted error from
_codecs.charmap_decode() when called with a mapped value
outside the range of valid Unicode code points. PR by Max
Bernstein.
- Fix pickling pure Python datetime.time subclasses. Patch by
Dean Inwood.
- Fixed a bug that was causing ctypes.util.find_library() to
return None when triying to locate a library in an
environment when gcc>=9 is available and ldconfig is not.
Patch by Pablo Galindo
- C14N 2.0 serialisation in xml.etree.ElementTree failed for
unprefixed attributes when a default namespace was defined.
- Fix a bug in the symtable module that was causing
module-scope global variables to not be reported as both
local and global. Patch by Pablo Galindo.
- str() for the type attribute of the tkinter.Event object
always returns now the numeric code returned by Tk instead of
the name of the event type.
- fix tkinter.EventType Enum so all members are strings, and
none are tuples
- Fix SQLite3 segfault when backing up closed database. Patch
contributed by Peter David McCormick.
- Fix the tarfile module to write only basename of TAR file to
GZIP compression header.
- Allow ctypes.wintypes to be imported on non-Windows systems.
- shutil.which() now ignores empty entries in PATHEXT instead
of treating them as a match.
- Fix time-of-check/time-of-action issue in
subprocess.Popen.send_signal.
- Fix --outfile for cProfile / profile not writing the output
file in the original directory when the program being
profiled changes the working directory. PR by Anthony
Sottile.
- ZipFile truncates files to avoid corruption when a shorter
comment is provided in append (“a”) mode. Patch by Jan Mazur.
- Fixed KeyError exception when flattening an email to a string
attempts to replace a non-existent Content-Transfer-Encoding
header.
Documentation
- Fix the URL for the IMAP protocol documents.
- Document __format__ functionality for IP addresses.
- Clarify that subscription expressions are also valid for
certain classes and types in the standard library, and for
user-defined classes and types if the classmethod
__class_getitem__() is provided.
- Documented generic alias type and types.GenericAlias. Also
added an entry in glossary for generic types.
- In Programming FAQ “Sequences (Tuples/Lists)” section, add
“How do you remove multiple items from a list”.
- Fix RemovedInSphinx40Warning when building the documentation.
Patch by Dong-hee Na.
- Update the refcounts info of PyType_FromModuleAndSpec.
- Fix tarfile’s extractfile documentation
- Document some restrictions on the default string
representations of numeric classes.
Tests
- 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.
- 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.
- Include _testinternalcapi module in Windows installer for
test suite
- Fix test_logging.test_race_between_set_target_and_flush():
the test now waits until all threads complete to avoid
leaking running threads.
- Avoid a test failure in test_lib2to3 if the module has
already imported at the time the test executes. Patch by
Pablo Galindo.
- Tests for CJK codecs no longer call eval() on content
received via HTTP.
- Fix test_site.test_license_exists_at_url(): call
urllib.request.urlcleanup() to reset the global
urllib.request._opener. Patch by Victor Stinner.
- test_ssl: skip test_min_max_version_mismatch when TLS 1.0 is
not available
- Add tests for SIGINT handling in the runpy module.
- Fixed a failure in test_tk.test_widgets.ScaleTest happening
when executing the test with Tk 8.6.10.
Build
- Fix a race condition in “make regen-all” when make -jN option
is used to run jobs in parallel. The clinic.py script now
only use atomic write to write files. Moveover, generated
files are now left unchanged if the content does not change,
to not change the file modification time.
- Update Py_UNREACHABLE to use __builtin_unreachable() if only
the compiler is able to use it. Patch by Dong-hee Na.
- Addressed three compiler warnings found by undefined behavior
sanitizer (ubsan).
IDLE
- Fix reporting offset of the RE error in searchengine.
- Get docstrings for IDLE calltips more often by using
inspect.getdoc.
- Mostly finish using ttk widgets, mainly for editor, settings,
and searches. Some patches by Mark Roseman.
- Use ‘IDLE Shell’ as shell title
- Rewrite the Calltips doc section.
- In calltips, stop reminding that ‘/’ marks the end of
positional-only arguments.
- Typing opening and closing parentheses inside the parentheses
of a function call will no longer cause unnecessary
“flashing” off and on of an existing open call-tip, e.g. when
typed in a string literal.
C API
- Fix potential crash in deallocating method objects when
dynamically allocated PyMethodDef’s lifetime is managed
through the self argument of a PyCFunction.
- Py_FileSystemDefaultEncodeErrors and Py_UTF8Mode are
available again in limited API.
- Readjustet and reapplied patches:
- CVE-2021-3177-buf_ovrfl_PyCArg_repr.patch
- bpo-31046_ensurepip_honours_prefix.patch
- python-3.3.0b1-fix_date_time_compiler.patch
- skip_random_failing_tests.patch
- sphinx-update-removed-function.patch
* Fri Jan 29 2021 Matej Cepl <mcepl@suse.com>
- Add CVE-2021-3177-buf_ovrfl_PyCArg_repr.patch fixing
bsc#1181126 (CVE-2021-3177) buffer overflow in PyCArg_repr in
_ctypes/callproc.c, which may lead to remote code execution.
* Tue Jan 05 2021 Matej Cepl <mcepl@suse.com>
- (bsc#1180125) We really don't Require python-rpm-macros package.
Unnecessary dependency.
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Fabrice Bellet, Fri Nov 15 01:18:46 2024