Ana Guerrero
8f9bb7c680
- Update to 3.14.0~b1:
- Tools/Demos
- gh-130453: Allow passing multiple keyword arguments with
the same function name in pygettext.
- gh-130195: Add warning messages when pygettext
unimplemented -a/--extract-all option is called.
- Tests
- gh-133131: The iOS testbed will now select the most
recently released “SE-class” device for testing if a device
isn’t explicitly specified.
- gh-91048: Add ability to externally inspect all pending
asyncio tasks, even if no task is currently entered on the
event loop.
- gh-109981: The test helper that counts the list of open
file descriptors now uses the optimised /dev/fd approach on
all Apple platforms, not just macOS. This avoids crashes
caused by guarded file descriptors.
- gh-132678: Add --prioritize to -m test. This option allows
the user to specify which selected tests should execute
first, even if the order is otherwise randomized. This is
particularly useful for tests that run the longest.
- gh-131290: Tests in Lib/test can now be correctly executed
as standalone scripts.
- Security
- gh-115322: The underlying extension modules behind
readline:, subprocess, and ctypes now raise audit events
on previously uncovered code paths that could lead to file
system access related to C function calling and external
binary execution. The ctypes.call_function audit hook has
also been fixed to use an unsigned value for its function
pointer.
- Library
- gh-133490: Add color support to PDB in remote mode.
- gh-132493: Avoid eagerly evaluating annotations in
functions decorated with reprlib.recursive_repr().
- gh-130645: Add color to stdlib argparse CLIs. Patch by Hugo
van Kemenade.
- gh-119180: Make annotationlib.get_annotations() succeed
with the FORWARDREF format if evaluating the annotations
throws an exception other than NameError or AttributeError.
- gh-133351: Fix remote PDB to correctly request tab
completions for Python expressions from the server when
completing a continuation line of a multi-line Python
block.
- gh-133367: Add the --feature-version, --optimize,
and --show-empty options to the ast command-line
interface. Patch by Semyon Moroz.
- gh-133363: The cmd.Cmd class has been fixed to reliably
call the completedefault method whenever the do_shell
method is not defined and tab completion is requested for a
line beginning with !.
- gh-113081: Highlight syntax on source code in pdb.
- gh-133349: Introduced auto-indent in pdb multi-line input.
- gh-133306: Use \z instead of \Z in fnmatch.translate() and
glob.translate().
- gh-133306: Support \z as a synonym for \Z in regular
expressions.
- gh-133300: Make argparse.ArgumentParser’s suggest_on_error
a keyword-only parameter. Patch by Hugo van Kemenade.
- gh-133290: Fix attribute caching issue when setting
ctypes._Pointer._type_ in the undocumented and deprecated
ctypes.SetPointerType() function and the undocumented
set_type() method.
- gh-133223: When PDB is attached to a remote process, do a
better job of intercepting Ctrl+C and forwarding it to the
remote process.
- gh-133153: Do not complete pdb commands in interact mode of
pdb.
- gh-133139: Add the curses.assume_default_colors() function,
a refinement of the curses.use_default_colors() function
which allows to change the color pair 0.
- gh-133089: Use original timeout value for
subprocess.TimeoutExpired when the func subprocess.run()
is called with a timeout instead of sometimes a confusing
partial remaining time out value used internally on the
final wait().
- gh-133036: codecs.open() is now deprecated. Use open()
instead. Contributed by Inada Naoki.
- gh-132987: Many builtin and extension functions which
accept an unsigned integer argument, now use __index__() if
available.
- gh-124703: Set return code to 1 when aborting process from
pdb.
- gh-133005: Support passing preset option to tarfile.open()
when using 'w|xz' mode.
- gh-115032: Support for custom logging handlers with the
strm argument is deprecated and scheduled for removal in
Python 3.16. Define handlers with the stream argument
instead. Patch by Mariusz Felisiak.
- gh-132991: Add socket.IP_FREEBIND constant on Linux 2.4 and
later.
- gh-132995: Bump the version of pip bundled in ensurepip to
version 25.1.1
- gh-132933: The zipapp module now applies the filter when
creating the list of files to add, rather than waiting
until the file is being added to the archive.
- gh-121249: Always support the float complex and double
complex C types in the struct module. Patch by Sergey B
Kirpichev.
- gh-132915: fcntl.fcntl() and fcntl.ioctl() can now detect
a buffer overflow and raise SystemError. The stack and
memory can be corrupted in such case, so treat this error
as fatal.
- gh-132017: Fix error when pyrepl is suspended, then resumed
and terminated.
- gh-132893: Improved statistics.NormalDist.cdf() accuracy
for inputs smaller than the mean.
- gh-130328: Speedup pasting in PyREPL on Windows. Fix by
Chris Eibl.
- gh-132882: Fix copying of typing.Union objects containing
objects that do not support the | operator.
- gh-93696: Fixed the breakpoint display error for frozen
modules in pdb.
- gh-129965: Add MIME types for .7z, .apk, .deb, .glb, .gltf,
.gz, .m4v, .php, .rar, .rpm, .stl and .wmv. Patch by Hugo
van Kemenade.
- gh-132742: fcntl.fcntl() now supports arbitrary bytes-like
objects, not only bytes. fcntl.ioctl() now automatically
retries system calls failing with EINTR and releases the
GIL during a system call even for large bytes-like object.
- gh-132451: The CLI for the PDB debugger now accepts a -p
PID argument to allow attaching to a running process. The
process must be running the same version of Python as the
one running PDB.
- gh-125618: Add a format parameter to
annotationlib.ForwardRef.evaluate(). Evaluating annotations
in the FORWARDREF format now succeeds in more cases that
would previously have raised an exception.
- gh-132805: Fix incorrect handling of nested non-constant
values in the FORWARDREF format in annotationlib.
- gh-132734: Add new constants for Bluetooth sockets.
- gh-132673: Fix AssertionError raised on ctypes.Structure
with _align_ = 0 and _fields_ = [].
- gh-132578: Rename the threading.Thread._handle field
to avoid shadowing methods defined on subclasses of
threading.Thread.
- gh-132561: Fix the public locked method of
multiprocessing.SemLock class. Also adding 2 tests for the
derivated multiprocessing.Lock and multiprocessing.RLock
classes.
- gh-121468: Add pdb.set_trace_async() function to support
await statements in pdb.
- gh-132493: typing.Protocol now uses
annotationlib.get_annotations() when checking whether
or not an instance implements the protocol with
isinstance(). This enables support for isinstance checks
against classes with deferred annotations.
- gh-132536: Do not disable PY_THROW event in bdb because it
can’t be disabled.
- gh-132527: Include the valid typecode ‘w’ in the error
message when an invalid typecode is passed to array.array.
- gh-132099: The Bluetooth socket with the BTPROTO_HCI
protocol on Linux now accepts an address in the format of
an integer device_id, not only a tuple (device_id,).
- gh-81793: Fix os.link() on platforms (like Linux)
where the system link() function does not follow
symlinks. On Linux, it now follows symlinks by default
or if follow_symlinks=True is specified. On Windows, it
now raises an error if follow_symlinks=True is passed. On
macOS, it now raises an error if follow_symlinks=False is
passed and the system linkat() function is not available at
runtime.
- gh-132493: Support creation of typing.Protocol classes with
annotations that cannot be resolved at class creation time.
- gh-132491: Rename annotationlib.value_to_string to
annotationlib.type_repr() and provide better handling for
function objects.
- gh-132426: Add
annotationlib.get_annotate_from_class_namespace() as a
helper for accessing annotations in metaclasses, and remove
annotationlib.get_annotate_function.
- gh-70145: Add support for channels in Bluetooth HCI
protocol (BTPROTO_HCI).
- gh-131913: Add a shortcut function
multiprocessing.Process.interrupt() alongside the
existing multiprocessing.Process.terminate() and
multiprocessing.Process.kill() for an improved control over
child process termination.
- gh-132439: Fix PyREPL on Windows: characters entered via
AltGr are swallowed. Patch by Chris Eibl.
- gh-132429: Fix support of Bluetooth sockets on NetBSD
and DragonFly BSD. Add support for cid and bdaddr_type
in the BTPROTO_L2CAP address on FreeBSD. Return cid in
getsockname() for BTPROTO_L2CAP if it is not zero.
- gh-132106: QueueListener.start now raises a RuntimeError if
the listener is already started.
- gh-132417: Fix a NULL pointer dereference when a C function
called using ctypes with restype py_object returns NULL.
- gh-132385: Fix instance error suggestions trigger potential
exceptions in object.__getattr__() in traceback.
- gh-125866: Add optional add_scheme argument to
urllib.request.pathname2url(); when set to true, a complete
URL is returned. Likewise add optional require_scheme
argument to url2pathname(); when set to true, a complete
URL is accepted.
- gh-132308: A traceback.TracebackException now correctly
renders the __context__ and __cause__ attributes from
falsey Exception, and the exceptions attribute from falsey
ExceptionGroup.
- gh-130645: Add colour to argparse help output. Patch by
Hugo van Kemenade.
- gh-127495: In PyREPL, append a new entry to the
PYTHON_HISTORY file after every statement. This should
preserve command-line history after interpreter is
terminated. Patch by Sergey B Kirpichev.
- gh-129463: Comparison of annotationlib.ForwardRef objects
no longer uses the internal __code__ and __ast_node__
attributes, which are used as caches.
- gh-132250: Fixed the SystemError in cProfile when locating
the actual C function of a method raises an exception.
- gh-132064: annotationlib.get_annotations() now uses
the __annotate__ attribute if it is present, even if
__annotations__ is not present. Additionally, the function
now raises a TypeError if it is passed an object that does
not have any annotatins.
- gh-130664: Support the '_' digit separator in formatting
of the integral part of Decimal’s. Patch by Sergey B
Kirpichev.
- gh-131952: Add color output to the json CLI. Patch by Tomas
Roun.
- gh-132063: Prevent exceptions that evaluate as
falsey (namely, when their __bool__ method returns
False or their __len__ method returns 0) from being
ignored by concurrent.futures.ProcessPoolExecutor and
concurrent.futures.ThreadPoolExecutor.
- gh-132106: logging.handlers.QueueListener now implements
the context manager protocol, allowing it to be used in a
with statement.
- gh-132054: The application/yaml mime type (RFC 9512) is now
supported by mimetypes. Patch by Sasha “Nelie” Chernykh and
Hugo van Kemenade.
- gh-119605: Respect follow_wrapped for __init__() and
__new__() methods when getting the class signature for a
class with inspect.signature(). Preserve class signature
after wrapping with warnings.deprecated(). Patch by Xuehai
Pan.
- gh-118761: Improve import times by up to 33x for the shlex
module, and improve the performance of shlex.quote() by up
to 12x. Patch by Adam Turner.
- gh-85302: Add support for BTPROTO_SCO in sockets on
FreeBSD.
- gh-131757: Make functools.lru_cache() call the cached
function unlocked to allow concurrency.
- gh-131423: ssl can show descriptions for errors added in
OpenSSL 3.4.1. Patch by Bénédikt Tran.
- gh-131434: Improve error reporting for incorrect format in
time.strptime().
- gh-131524: Add help message to platform command-line
interface. Contributed by Harry Lees.
- gh-100926: Move ctypes.POINTER() types cache from
a global internal cache (_pointer_type_cache) to
the ctypes._CData.__pointer_type__ attribute of the
corresponding ctypes types. This will stop the cache from
growing without limits in some situations.
- gh-85702: If zoneinfo._common.load_tzdata is given a
package without a resource a ZoneInfoNotFoundError is
raised rather than a IsADirectoryError.
- gh-123471: Make concurrent iterations over itertools.repeat
safe under free-threading.
- gh-131127: Systems using LibreSSL now successfully build.
- gh-89157: Make the pure Python implementation of
datetime.date.fromisoformat(), only accept ASCII strings
for consistency with the C implementation.
- gh-130941: Fix configparser.ConfigParser parsing empty
interpolation with allow_no_value set to True.
- gh-110067: Make heapq max-heap functions
heapq.heapify_max(), heapq.heappush_max(),
heapq.heappop_max(), and heapq.heapreplace_max()
public. Previous underscored naming is kept for backwards
compatibility. Additionally, the missing function
heapq.heappushpop_max() has been added to both the C and
Python implementations.
- gh-129098: Fix REPL traceback reporting when using
compile() with an inexisting file. Patch by Bénédikt Tran.
- gh-130631: http.cookiejar.join_header_words() is now more
similar to the original Perl version. It now quotes the
same set of characters and always quote values that end
with "\n".
- gh-130482: Add ability to specify name for
tkinter.OptionMenu and tkinter.ttk.OptionMenu.
- gh-77065: Add keyword-only optional argument echo_char for
getpass.getpass() for optional visual keyboard feedback
support. Patch by Semyon Moroz.
- gh-130317: Fix PyFloat_Pack2() and PyFloat_Unpack2()
for NaN’s with payload. This corrects round-trip for
struct.unpack() and struct.pack() in case of the IEEE
754 binary16 “half precision” type. Patch by Sergey B
Kirpichev.
- gh-130402: Joining running daemon threads during
interpreter shutdown now raises PythonFinalizationError.
- gh-130167: Improve speed of difflib.IS_LINE_JUNK(). Patch
by Semyon Moroz.
- gh-101410: Added more detailed messages for domain errors
in the math module.
- gh-128384: Make warnings.catch_warnings use a context
variable for holding the warning filtering state if
the sys.flags.context_aware_warnings flag is set to
true. This makes using the context manager thread-safe
in multi-threaded programs. The flag is true by default
in free-threaded builds and is otherwise false. The
value of the flag can be overridden by the the -X
context_aware_warnings command-line option or by the
PYTHON_CONTEXT_AWARE_WARNINGS environment variable.
- gh-129719: Fix missing socket.CAN_RAW_ERR_FILTER constant
in the socket module on Linux systems. It was missing since
Python 3.11.
- gh-129027: Raise DeprecationWarning for
sys._clear_type_cache(). This function was deprecated in
Python 3.13 but it didn’t raise a runtime warning.
- gh-128307: Add eager_start keyword argument to
asyncio.loop.create_task()
- gh-127604: Add support for printing the C stack trace on
systems that support it via faulthandler.dump_c_stack() or
via the c_stack argument in faulthandler.enable().
- gh-127385: Add the F_DUPFD_QUERY constant to the fcntl
module.
- gh-126838: Add resolve_host keyword-only parameter to
urllib.request.url2pathname(), and fix handling of file
URLs with authorities.
- gh-82129: Fix NameError when calling
typing.get_type_hints() on a dataclasses.dataclass()
created by dataclasses.make_dataclass() with un-annotated
fields.
- gh-122559: Remove __reduce__() and __reduce_ex__() methods
that always raise TypeError in the C implementation
of io.FileIO, io.BufferedReader, io.BufferedWriter
and io.BufferedRandom and replace them with default
__getstate__() methods that raise TypeError. This restores
fine details of behavior of Python 3.11 and older versions.
- gh-122179: hashlib.file_digest() now raises BlockingIOError
when no data is available during non-blocking I/O. Before,
it added spurious null bytes to the digest.
- gh-53032: Expose decimal.IEEEContext() to support creation
of contexts corresponding to the IEEE 754 (2008) decimal
interchange formats. Patch by Sergey B Kirpichev.
- gh-120220: Deprecate the tkinter.Variable
methods trace_variable(), trace_vdelete() and
trace_vinfo(). Methods trace_add(), trace_remove() and
trace_info() can be used instead.
- gh-113539: webbrowser: Names in the BROWSER environment
variable can now refer to already registered web browsers,
instead of always generating a new browser command.
This makes it possible to set BROWSER to the value of one
of the supported browsers on macOS.
- bpo-44172: Keep a reference to original curses windows in
subwindows so that the original window does not get deleted
before subwindows.
- gh-75223: Deprecate undotted extensions in
mimetypes.MimeTypes.add_type(). Patch by Hugo van Kemenade.
- IDLE
- gh-112936: fix IDLE: no Shell menu item in single-process
mode.
- Documentation
- gh-107006: Move documentation and example code for
threading.local from its docstring to the official docs.
- gh-125142: As part of the builtin help intro text, show the
keyboard shortcuts for the new, non-basic REPL (F1, F2, and
F3).
- Core and Builtins
- gh-133336: -J is no longer reserved for use by
Jython. Patch by Adam Turner.
- gh-133261: Fix bug where the cycle GC could untrack
objects in the trashcan because they looked like they were
immortal. When objects are added to the trashcan, we take
care to ensure they keep a mortal reference count.
- gh-133346: Added experimental color theming support to the
_colorize module.
- gh-132917: For the free-threaded build, check the process
memory usage increase before triggering a full automatic
garbage collection. If the memory used has not increased
10% since the last collection then defer it.
- gh-91048: Add a new python -m asyncio ps PID command-line
interface to inspect asyncio tasks in a running Python
process. Displays a flat table of await relationships. A
variant showing a tree view is also available as python -m
asyncio pstree PID. Both are useful for debugging async
code. Patch by Pablo Galindo, Łukasz Langa, Yury Selivanov,
and Marta Gomez Macias.
- gh-133304: Workaround NaN’s “canonicalization” in
PyFloat_Pack4() and PyFloat_Unpack4() on RISC-V.
- gh-133197: Improve SyntaxError error messages for
incompatible string / bytes prefixes.
- gh-133231: Add new utilities of observing JIT compilation:
sys._jit.is_available(), sys._jit.is_enabled(), and
sys._jit.is_active().
- gh-133194: ast.parse() will no longer parse new PEP 758
syntax with older feature_version passed.
- gh-131798: Split CALL_LEN into several uops allowing the
JIT to remove them when optimizing. Patch by Diego Russo.
- gh-131798: Use sym_new_type instead of sym_new_not_null for
_BUILD_STRING, _BUILD_SET
- gh-132942: Fix two races in the type lookup cache. This
affected the free-threaded build and could cause crashes
(apparently quite difficult to trigger).
- gh-131798: Propagate the return type of
_BINARY_OP_SUBSCR_TUPLE_INT in JIT. Patch by Tomas Roun
- gh-132952: Speed up startup with the -S argument by
importing the private _io module instead of io. This fixes
a performance regression introduced earlier in Python 3.14
development and restores performance to the level of Python
3.13.
- gh-131798: Allow the JIT to remove int guards after
_CALL_LEN by setting the return type to int. Patch by Diego
Russo
- gh-131798: Split CALL_TUPLE_1 into several uops allowing
the JIT to remove some of them. Patch by Tomas Roun
- gh-131798: Split CALL_STR_1 into several uops allowing the
JIT to remove some of them. Patch by Tomas Roun
- gh-132825: Enhance unhashable key/element error messages
for dict and set. Patch by Victor Stinner.
- gh-131591: Reset any PEP 768 remote debugging pending call
in children after os.fork() calls.
- gh-132713: Fix repr(list) race condition: hold a strong
reference to the item while calling repr(item). Patch by
Victor Stinner.
- gh-132661: Implement PEP 750 (Template Strings). Add
new syntax for t-strings and implement new
internal string.templatelib.Template and
string.templatelib.Interpolation types.
- gh-132479: Fix compiler crash in certain circumstances
where multiple module-level annotations include
comprehensions and other nested scopes.
- gh-132747: Fix a crash when calling __get__() of a method
with a None second argument.
- gh-132744: Certain calls now check for runaway recursion
and respect the system recursion limit.
- gh-132449: Syntax errors that look like misspellings of
Python keywords now provide a helpful fix suggestion for
the typo. Contributed by Pablo Galindo Salgado.
- gh-132737: Support profiling code that requires __main__,
such as pickle.
- gh-132639: Added PyLong_AsNativeBytes(),
PyLong_FromNativeBytes() and
PyLong_FromUnsignedNativeBytes() to the limited C API.
- gh-100239: Add specialisation for BINARY_OP/SUBSCR on list
and slice.
- gh-132508: Uses tagged integers on the evaluation stack
to represent the instruction offsets when reraising an
exception. This avoids the need to box the integer which
could fail in low memory conditions.
- gh-124476: Fix decoding from the locale encoding in the
C.UTF-8 locale.
- gh-131927: Compiler warnings originating from the same
module and line number are now only emitted once, matching
the behaviour of warnings emitted from user code. This can
also be configured with warnings filters.
- gh-132457: Make staticmethod() and classmethod() generic.
- gh-131798: Use sym_new_type instead of sym_new_not_null for
_BUILD_LIST, _BUILD_SET, _BUILD_MAP
- gh-131798: Split CALL_TYPE_1 into several uops allowing the
JIT to remove some of them.
- gh-132386: Fix crash when passing a dict subclass as the
globals parameter to exec().
- gh-127682: No longer call __iter__ twice when creating and
executing a generator expression. Creating a generator
expression from a non-interable will raise only when the
generator expression is executed. This brings the behavior
of generator expressions in line with other generators.
- gh-132261: The internal storage for annotations and
annotate functions on classes now uses different keys in
the class dictionary. This eliminates various edge cases
where access to the __annotate__ and __annotations__
attributes would behave unpredictably.
- gh-132284: Don’t wrap base PyCFunction slots on class
creation if not overridden.
- gh-130415: Improve the JIT’s ability to remove unused
constant and local variable loads, and fix an issue where
deallocating unused values could cause JIT code to crash or
behave incorrectly.
- gh-126703: Fix possible use after free in cases where a
method’s definition has the same lifetime as its self.
- gh-132286: Fix that type.__annotate__ was not deleted, when
type.__annotations__ was deleted.
- gh-131798: Allow the JIT to remove an extra _TO_BOOL_BOOL
instruction after _CONTAINS_OP_DICT by setting the return
type to bool.
- gh-124715: Prevents against stack overflows when calling
Py_DECREF(). Third-party extension objects no longer need
to use the “trashcan” mechanism, as protection is now built
into the Py_DECREF() macro.
- gh-131798: Allow the JIT compiler to remove some type
checks for operations on lists, tuples, dictionaries, and
sets.
- gh-128398: Improve error message when an object supporting
the synchronous (resp. asynchronous) context manager
protocol is entered using async with (resp. with) instead
of with (resp. async with). Patch by Bénédikt Tran.
- gh-131798: Allow the JIT to remove unicode guards after
_BINARY_OP_SUBSCR_STR_INT by setting the return type to
string.
- gh-131878: Handle uncaught exceptions in the main input
loop for the new REPL.
- gh-131878: Fix support of unicode characters with two or
more codepoints on Windows in the new REPL.
- gh-126835: Move constant folding to the peephole
optimizer. Rename AST optimization related files
(Python/ast_opt.c -> Python/ast_preprocess.c), structs
(_PyASTOptimizeState -> _PyASTPreprocessState) and
functions (_PyAST_Optimize -> _PyAST_Preprocess,
_PyCompile_AstOptimize -> _PyCompile_AstPreprocess).
- gh-114809: Add support for macOS multi-arch builds with the
JIT enabled
- gh-131507: PyREPL now supports syntax
highlighing. Contributed by Łukasz Langa.
- gh-130907: If the __annotations__ of a module object
are accessed while the module is executing, return the
annotations that have been defined so far, without caching
them.
- gh-130104: Three-argument pow() now try calling __rpow__()
if necessary. Previously it was only called in two-argument
pow() and the binary power operator.
- gh-130070: Fixed an assertion error for exec() passed a
string source and a non-None closure. Patch by Bartosz
Sławecki.
- gh-129958: Fix a bug that was allowing newlines
inconsitently in format specifiers for single-quoted
f-strings. Patch by Pablo Galindo.
- gh-129858: elif statements that follow an else block now
have a specific error message.
- gh-69605: Add module autocomplete to PyREPL.
- gh-128555: Add the sys.flags.thread_inherit_context flag.
- This flag is set to true by default on the
free-threaded build and false otherwise. If the flag
is true, starting a new thread using threading.Thread
will, by default, use a copy of the contextvars.Context
from the caller of threading.Thread.start() rather than
using an empty context.
- Add the -X thread_inherit_context command-line option
and PYTHON_THREAD_INHERIT_CONTEXT environment variable,
which set the thread_inherit_context flag.
- Add the context keyword parameter to Thread. It can be
used to explicitly pass a context value to be used by a
new thread.
- Make the _contextvars module built-in.
- gh-123539: Improve SyntaxError message for using import ...
as and from ... import ... as with not a name.
- gh-102567: -X importtime now accepts value 2, which
indicates that an importtime entry should also be printed
if an imported module has already been loaded. Patch by
Noah Kim and Adam Turner.
- gh-116436: Improve error message when TypeError occurs
during dict.update()
- gh-103997: String arguments passed to “-c” are now
automatically dedented as if by textwrap.dedent(). This
allows “python -c” invocations to be indented in shell
scripts without causing indentation errors. (Patch by Jon
Crall and Steven Sun)
- gh-89562: Remove hostflags member from PySSLContext struct.
- C API
- gh-133166: Fix regression where PyType_GetModuleByDef()
returns NULL without setting TypeError when a static type
is passed.
- gh-133164: Add
PyUnstable_Object_IsUniqueReferencedTemporary() function
for determining if an object exists as a unique temporary
variable on the interpreter’s stack. This is a replacement
for some cases where checking that Py_REFCNT() is one is
no longer sufficient to determine if it’s safe to modify a
Python object in-place with no visible side effects.
- gh-133140: Add PyUnstable_Object_IsUniquelyReferenced()
as a replacement for Py_REFNCT(op) == 1 on free threaded
builds of Python.
- gh-131747: On non-Windows platforms, deprecate using
ctypes.Structure._pack_ to use a Windows-compatible layout
on non-Windows platforms. The layout should be specified
explicitly by setting ctypes.Structure._layout_ to 'ms'.
- gh-128972: For non-free-threaded builds, the memory layout
of PyASCIIObject is reverted to match Python 3.13. (Note
that the structure is not part of stable ABI and so its
memory layout is guaranteed to remain stable.)
- gh-133079: The undocumented APIs Py_C_RECURSION_LIMIT and
PyThreadState.c_recursion_remaining, added in 3.13, are
removed without a deprecation period.
- gh-132987: The k and K formats in PyArg_Parse() now support
the __index__() special method, like all other integer
formats.
- gh-132909: Fix an overflow when handling the K format in
Py_BuildValue(). Patch by Bénédikt Tran.
- gh-132798: Deprecated and undocumented
functions PyUnicode_AsEncodedObject(),
PyUnicode_AsDecodedObject(), PyUnicode_AsEncodedUnicode()
and PyUnicode_AsDecodedUnicode() are scheduled for removal
in 3.15.
- gh-132470: Creating a ctypes.CField with a byte_size that
does not match the actual type size now raises a ValueError
instead of crashing the interpreter.
- gh-112068: Add support of nullable arguments in
PyArg_Parse() and similar functions. Adding ? after any
format unit makes None be accepted as a value.
- gh-50333: Non-tuple sequences are deprecated as argument
for the (items) format unit in PyArg_ParseTuple() and other
argument parsing functions if items contains format units
which store a borrowed buffer or a borrowed reference.
- Build
- gh-113464: Use the cpython-bin-deps “externals” repository
for Windows LLVM dependency management. Installing LLVM
manually is no longer necessary for Windows JIT builds.
- gh-133183: iOS compiler shims now include
IPHONEOS_DEPLOYMENT_TARGET in target triples, ensuring that
SDK version minimums are honored.
- gh-133167: Fix compilation process with
--enable-optimizations and --without-docstrings.
- gh-133171: Since free-threaded builds do not support the
experimental JIT compiler, prevent these configurations
from being combined.
- gh-132758: Fix building with tail call interpreter and
pystats.
- gh-132649: The PClayout script now allows passing
--include-tcltk on Windows ARM64.
- gh-132257: Change the default LTO flags on GCC to not
pass -flto-partition=none, and allow parallelization of
LTO. For newer GNU makes and GCC, this has a multiple
factor speedup for LTO build times, with no noticeable loss
in performance.
- gh-132026: Fix use of undefined identifiers in platform
triplet detection on MIPS Linux platforms.
- Disabled GIL and experimental JIT cannot be combined.
- Remove python-3.3.0b1-test-posix_fadvise.patch (not needed
since kernel 3.6-rc1)
- _contextvars is not a dynamic module any more
(gh#python/cpython#128384)
- rename _testexternalinspection to _remotedebugging
(gh#python/cpython!133284)
OBS-URL: https://build.opensuse.org/request/show/1276737
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python314?expand=0&rev=9
Python 3 in SUSE
==============
* Subpackages *
Python 3 is split into several subpackages, based on external dependencies.
The main package 'python3' has soft dependencies on all subpackages needed to
assemble the standard library; however, these might not all be installed by default.
If you attempt to import a module that is currently not installed, an ImportError is thrown,
with instructions to install the missing subpackage. Installing the subpackage might result
in installing libraries that the subpackage requires to function.
* ensurepip *
The 'ensurepip' module from Python 3 standard library (PEP 453) is supposed to deploy
a bundled copy of the pip installer. This makes no sense in a managed distribution like SUSE.
Instead, you need to install package 'python3-pip'. Usually this will be installed automatically
with 'python3'.
Using 'ensurepip' when pip is not installed will result in an ImportError with instructions
to install 'python3-pip'.
* Documentation *
You can find documentation in seprarate packages: python3-doc and
python3-doc-pdf. These contan following documents:
Tutorial, What's New in Python, Global Module Index, Library Reference,
Macintosh Module Reference, Installing Python Modules, Distributing Python
Modules, Language Reference, Extending and Embedding, Python/C API,
Documenting Python
The python3-doc package constains many text files from source tarball.
* Interactive mode *
Interactive mode is by default enhanced with of history and command completion.
If you don't like these features, you can unset the PYTHONSTARTUP variable
in your .profile or disable it system wide in /etc/profile.d/python.sh.