Update copyright years to 2024. by 0xSalikh · Pull Request #113608 · python/cpython (original) (raw)

gh-111926: Set up basic sementics of weakref API for freethreading (gh-113621)

Co-authored-by: Sam Gross colesbury@gmail.com

gh-113603: Compiler no longer tries to maintain the no-empty-block invariant (#113636)
gh-113258: Write frozen modules to the build tree on Windows (GH-113303)

This ensures the source directory is not modified at build time, and different builds (e.g. different versions or GIL vs no-GIL) do not have conflicts.

Document the co_lines method on code objects (#113682)

Co-authored-by: Hugo van Kemenade hugovk@users.noreply.github.com

gh-52161: Enhance Cmd support for docstrings (#110987)

In cmd.Cmd.do_help call inspect.cleandoc(), to clean indentation and remove leading/trailing empty lines from a dosctring before printing.

GH-113689: Fix broken handling of invalid executors (GH-113694)
gh-113696: Docs: Annotate PyObject_CallOneArg and PyObject_CallNoArgs as returning a strong reference (#113697)
gh-113569: Display calls in Mock.assert_has_calls failure when empty (GH-113573)
gh-113538: Don't error in stream reader protocol callback when task is cancelled (#113690)
GH-113225: Speed up pathlib.Path.glob() (#113226)

Use os.DirEntry.path as the string representation of child paths, unless the parent path is empty, in which case we use the entry name.

gh-112532: Isolate abandoned segments by interpreter (#113717)
gh-112532: Isolate abandoned segments by interpreter

Mimalloc segments are data structures that contain memory allocations along with metadata. Each segment is "owned" by a thread. When a thread exits, it abandons its segments to a global pool to be later reclaimed by other threads. This changes the pool to be per-interpreter instead of process-wide.

This will be important for when we use mimalloc to find GC objects in the --disable-gil builds. We want heaps to only store Python objects from a single interpreter. Absent this change, the abandoning and reclaiming process could break this isolation.

Add missing '&_mi_abandoned_default' to 'tld_empty'
gh-113320: Reduce the number of dangerous getattr() calls when constructing protocol classes (#113401)

Only attempt to figure out whether protocol members are "method members" or not if the class is marked as a runtime protocol. This information is irrelevant for non-runtime protocols; we can safely skip the risky introspection for them.
Only do the risky getattr() calls in one place (the runtime_checkable class decorator), rather than in three places (_ProtocolMeta.init, _ProtocolMeta.instancecheck and _ProtocolMeta.subclasscheck). This reduces the number of locations in typing.py where the risky introspection could go wrong.
For runtime protocols, if determining whether a protocol member is callable or not fails, give a better error message. I think it's reasonable for us to reject runtime protocols that have members which raise strange exceptions when you try to access them. PEP-544 clearly states that all protocol member must be callable for issubclass() calls against the protocol to be valid -- and if a member raises when we try to access it, there's no way for us to figure out whether it's a callable member or not!

GH-113486: Do not emit spurious PY_UNWIND events for optimized calls to classes. (GH-113680)
gh-113703: Correctly identify incomplete f-strings in the codeop module (#113709)
gh-101100: Fix Sphinx warnings for 2.6 deprecations and removals (#113725)

Co-authored-by: Alex Waygood Alex.Waygood@Gmail.com Co-authored-by: Hugo van Kemenade hugovk@users.noreply.github.com

gh-80532: Do not set ipv6type when cross-compiling (#17956)

Co-authored-by: Xavier de Gaye xdegaye@gmail.com

gh-101100: Fix Sphinx warnings in library/pyclbr.rst (#113739)

Co-authored-by: Alex Waygood Alex.Waygood@Gmail.com

gh-112532: Tag mimalloc heaps and pages (#113742)
gh-112532: Tag mimalloc heaps and pages

Mimalloc pages are data structures that contain contiguous allocations of the same block size. Note that they are distinct from operating system pages. Mimalloc pages are contained in segments.

When a thread exits, it abandons any segments and contained pages that have live allocations. These segments and pages may be later reclaimed by another thread. To support GC and certain thread-safety guarantees in free-threaded builds, we want pages to only be reclaimed by the corresponding heap in the claimant thread. For example, we want pages containing GC objects to only be claimed by GC heaps.

This allows heaps and pages to be tagged with an integer tag that is used to ensure that abandoned pages are only claimed by heaps with the same tag. Heaps can be initialized with a tag (0-15); any page allocated by that heap copies the corresponding tag.

Fix conversion warning
gh-113688: Split up gcmodule.c (gh-113715)

This splits part of Modules/gcmodule.c of into Python/gc.c, which now contains the core garbage collection implementation. The Python module remain in the Modules/gcmodule.c file.

GH-113568: Stop raising auditing events from pathlib ABCs (#113571)

Raise auditing events in pathlib.Path.glob(), rglob() and walk(), but not in pathlib._abc.PathBase methods. Also move generation of a deprecation warning into pathlib.Path so it gets the right stack level.

gh-85567: Fix resouce warnings in pickle and pickletools CLIs (GH-113618)

Explicitly open and close files instead of using FileType.

gh-113360: Fix the documentation of module's attribute test (GH-113393)

It can only be a dict since Python 2.4.

GH-113568: Stop raising deprecation warnings from pathlib ABCs (#113757)
gh-113750: Fix object resurrection in free-threaded builds (gh-113751)

gh-113750: Fix object resurrection on free-threaded builds

This avoids the undesired re-initializing of fields like ob_gc_bits, ob_mutex, and ob_tid when an object is resurrected due to its finalizer being called.

This change has no effect on the default (with GIL) build.

gh-113729: Fix IDLE's Help -> "IDLE Help" menu bug in 3.12.1 and 3.11.7 (#113731)

Co-authored-by: Terry Jan Reedy tjreedy@udel.edu

gh-113537: support loads str in plistlib.loads (#113582)

Add support for loading XML plists from a string value instead of a only bytes value.

gh-111488: Changed error message in case of no 'in' keyword after 'for' in cmp (#113656)
gh-107901: synthetic jumps which are not at end of loop no longer check the eval breaker (#113721)
GH-113528: pathlib ABC tests: add repr to dummy path classes. (#113777)

The DummyPurePath and DummyPath test classes are simple subclasses of PurePathBase and PathBase. This commit adds __repr__() methods to the dummy classes, which makes debugging test failures less painful.

GH-113528: Split up pathlib tests for invalid basenames. (#113776)

Split test cases for invalid names into dedicated test methods. This will make it easier to refactor tests for invalid name handling in ABCs later.

No change of coverage, just a change of test suite organisation.

GH-113528: Slightly improve pathlib.Path.glob() tests for symlink loop handling (#113763)

Slightly improve pathlib.Path.glob() tests for symlink loop handling

When filtering results, ignore paths with more than one linkD/ segment, rather than all paths below the first linkD/ segment. This allows us to test that other paths under linkD/ are correctly returned.

GH-113528: Deoptimise pathlib._abc.PurePathBase.name (#113531)

Replace usage of _from_parsed_parts() with with_segments() in with_name(), and take a similar approach in name for consistency's sake.

GH-113528: Deoptimise pathlib._abc.PurePathBase.parent (#113530)

Replace use of _from_parsed_parts() with with_segments(), and move assignments to _drv, _root, _tail_cachedand_strslots intoPurePath`.

GH-113528: Deoptimise pathlib._abc.PurePathBase.relative_to() (#113529)

Replace use of _from_parsed_parts() with with_segments() in PurePathBase.relative_to(), and move the assignment of _drv, _root and _tail_cached slots into PurePath.relative_to().

gh-89532: Remove LibreSSL workarounds (#28728)

Remove LibreSSL specific workaround ifdefs from _ssl.c and delete the non-version-specific _ssl_data.h file (relevant for OpenSSL < 1.1.1, which we no longer support per PEP 644).

Co-authored-by: Christian Heimes christian@python.org Co-authored-by: Gregory P. Smith greg@krypto.org

gh-112795: Allow / folder in a zipfile (#112932)

Allow extraction (no-op) of a "/" folder in a zipfile, they are commonly added by some archive creation tools.

Co-authored-by: Erlend E. Aasland erlend@python.org Co-authored-by: Gregory P. Smith greg@krypto.org

gh-73965: New environment variable PYTHON_HISTORY (#13208)

It can be used to set the location of a .python_history file

Co-authored-by: Levi Sabah 0xl3vi@gmail.com Co-authored-by: Hugo van Kemenade hugovk@users.noreply.github.com

gh-73965: Move PYTHON_HISTORY into the correct usage section (#113798)

Co-authored-by: Serhiy Storchaka storchaka@gmail.com

gh-80109: Fix io.TextIOWrapper dropping the internal buffer during write() (GH-22535)

io.TextIOWrapper was dropping the internal decoding buffer during read() and write() calls.

gh-74678: Increase base64 test coverage (GH-21913)

Ensure the character y is disallowed within an Ascii85 5-tuple.

Co-authored-by: Lee Cannon leecannon@leecannon.xyz

gh-110721: Remove unused code from suggestions.c after moving PyErr_Display to use the traceback module (#113712)
gh-113391: fix outdated PyObject_HasAttr docs (#113420)

After #53875: PyObject_HasAttr is not an equivalent of hasattr. PyObject_HasAttrWithError is; it already has the note.

gh-113787: Fix refleaks in test_capi (gh-113816)

Fix refleaks and a typo.

gh-113755: Fully adapt gcmodule.c to Argument Clinic (#113756)

Adapt the following functions to Argument Clinic:

gc.set_threshold
gc.get_referrers
gc.get_referents

Minor algebraic simplification for the totient() recipe (gh-113822)
GH-113528: Move a few misplaced pathlib tests (#113527)

PurePathBase does not define __eq__(), and so we have no business checking path equality in test_eq_common and test_equivalences. The tests only pass at the moment because we define the test class's __eq__() for use elsewhere.

Also move test_parse_path_common into the main pathlib test suite. It exercises a private _parse_path() method that will be moved to PurePath soon.

Lastly move a couple more tests concerned with optimisations and path normalisation.

gh-113688: fix dtrace build on Solaris (#113814)

(the gcmodule -> gc refactoring broke it)

GH-113528: Speed up pathlib ABC tests. (#113788)

Add __slots__ to dummy path classes.
Return namedtuple rather than os.stat_result from DummyPath.stat().
Reduce maximum symlink count in DummyPathWithSymlinks.resolve().

gh-113791: Expose CLOCK_MONOTONIC_RAW_APPROX and CLOCK_UPTIME_RAW_APROX on macOS in the time module (#113792)
GH-111693: Propagate correct asyncio.CancelledError instance out of asyncio.Condition.wait() (#111694)

Also fix a race condition in asyncio.Semaphore.acquire() when cancelled.

gh-113827: Move Windows frozen modules directory to allow PGO builds (GH-113828)
gh-113027: Fix test_variable_tzname in test_email (#113821)

Determine the support of the Kyiv timezone by checking the result of astimezone() which uses the system tz database and not the one populated by zoneinfo.

readme: fix displaying issue of command (#113719)

Avoid line break in command as this causes displaying issues on GH.

gh-112806: Remove unused function warnings during mimalloc build on Solaris (#112807)
gh-112808: Fix mimalloc build on Solaris (#112809)
gh-112087: Update list.{pop,clear,reverse,remove} to use CS (gh-113764)
Docs: Link tokens in the format string grammars (#108184)

Co-authored-by: Adam Turner 9087854+aa-turner@users.noreply.github.com Co-authored-by: Sergey B Kirpichev skirpichev@gmail.com

gh-113692: skip a test if multiprocessing isn't available. (GH-113704)
gh-101100: Fix Sphinx warnings for 2.6 port-specific deprecations (#113752)
gh-113842: Add missing error check for PyIter_Next() in Python/symtable.c (GH-113843)
gh-87868: Sort and remove duplicates in getenvironment() (GH-102731)

Co-authored-by: Alex Waygood Alex.Waygood@Gmail.com Co-authored-by: Pieter Eendebak pieter.eendebak@gmail.com Co-authored-by: Erlend E. Aasland erlend.aasland@protonmail.com

gh-103092: Test _ctypes type hierarchy and features (#113727)

Test the following features for _ctypes types:

disallow instantiation
inheritance (MRO)
immutability
type name

The following _ctypes types are tested:

Array
CField
COMError
PyCArrayType
PyCFuncPtrType
PyCPointerType
PyCSimpleType
PyCStructType
Structure
Union
UnionType
_CFuncPtr
_Pointer
_SimpleCData

Co-authored-by: Erlend E. Aasland erlend.aasland@protonmail.com

gh-113650: Add workaround option for MSVC ARM64 bug affecting string encoding (GH-113836)
Fix opcode name printing in debug mode (#113870)

Fix a few places where the lltrace debug output printed (null) instead of an opcode name, because it was calling _PyUOpName() on a Tier-1 opcode.

Simplify binomial approximation example with random.binomialvariate() (gh-113871)
GH-113528: Deoptimise pathlib._abc.PathBase._make_child_relpath() (#113532)

Call straight through to joinpath() in PathBase._make_child_relpath(). Move optimised/caching code to pathlib.Path._make_child_relpath()

gh-113848: Use PyErr_GivenExceptionMatches() for check for CancelledError (GH-113849)
gh-113848: Handle CancelledError subclasses in asyncio TaskGroup() and timeout() (GH-113850)
gh-113781: Silence AttributeError in warning module during Python finalization (GH-113813)

The tracemalloc module can already be cleared.

GH-113661: unittest runner: Don't exit 5 if tests were skipped (#113856)

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-113528: Deoptimise pathlib._abc.PathBase.resolve() (#113782)

Replace use of _from_parsed_parts() with with_segments() in resolve().

No effect on Path.resolve(), which uses os.path.realpath().

gh-66060: Use actual class name in _io type's repr (#30824)

Use the object's actual class name in the following _io type's repr:

FileIO
TextIOWrapper
_WindowsConsoleIO

GH-113528: Deoptimise pathlib._abc.PurePathBase.parts (#113883)

Implement parts using _stack, which itself calls pathmod.split() repeatedly. This avoids use of _tail, which will be moved to PurePath shortly.

GH-113528: Deoptimise pathlib._abc.PurePathBase.relative_to() (again) (#113882)

Restore full battle-tested implementations of PurePath.[is_]relative_to(). These were recently split up in 3375dfe and a15a773.

In PurePathBase, add entirely new implementations based on _stack, which itself calls pathmod.split() repeatedly to disassemble a path. These new implementations preserve features like trailing slashes where possible, while still observing that a .. segment cannot be added to traverse an empty or . segment in walk_up mode. They do not rely on parents nor __eq__(), nor do they spin up temporary path objects.

Unfortunately calling pathmod.relpath() isn't an option, as it calls abspath() and in turn os.getcwd(), which is impure.

gh-111968: Introduce _PyFreeListState and _PyFreeListState_GET API (gh-113584)
GH-113528: Deoptimise pathlib._abc.PurePathBase (#113559)

Apply pathlib's normalization and performance tuning in pathlib.PurePath, but not pathlib._abc.PurePathBase.

With this change, the pathlib ABCs do not normalize away alternate path separators, empty segments, or dot segments. A single string given to the initialiser will round-trip by default, i.e. str(PurePathBase(my_string)) == my_string. Implementors can set their own path domain-specific normalization scheme by overriding __str__()

Eliminating path normalization makes maintaining and caching the path's parts and string representation both optional and not very useful, so this commit moves the _drv, _root, _tail_cached and _str slots from PurePathBase to PurePath. Only _raw_paths and _resolving slots remain in PurePathBase. This frees the ABCs from the burden of some of pathlib's hardest-to-understand code.

pathlib ABCs: Require one or more initialiser arguments (#113885)

Refuse to guess what a user means when they initialise a pathlib ABC without any positional arguments. In mainline pathlib it's normalised to ., but in the ABCs this guess isn't appropriate; for example, the path type may not represent the current directory as ., or may have no concept of a "current directory" at all.

gh-112182: Replace StopIteration with RuntimeError for future (#113220)

When an StopIteration raises into asyncio.Future, this will cause a thread to hang. This commit address this by not raising an exception and silently transforming the StopIteration with a RuntimeError, which the caller can reconstruct from fut.exception().__cause__

GH-113858: GitHub Actions config: Only save ccache on pushes (GH-113859)
gh-113877: Fix Tkinter method winfo_pathname() on 64-bit Windows (GH-113900)

winfo_id() converts the result of "winfo id" command to integer, but "winfo pathname" command requires an argument to be a hexadecimal number on Win64.

gh-113879: Fix ResourceWarning in test_asyncio.test_server (GH-113881)
gh-96037: Always insert TimeoutError when exit an expired asyncio.timeout() block (GH-113819)

If other exception was raised during exiting an expired asyncio.timeout() block, insert TimeoutError in the exception context just above the CancelledError.

gh-70835: Clarify error message for CSV file opened with wrong newline (GH-113786)

Based on patch by SilentGhost.

gh-113594: Fix UnicodeEncodeError in TokenList.fold() (GH-113730)

It occurred when try to re-encode an unknown-8bit part combined with non-unknown-8bit part.

gh-113664: Improve style of Big O notation (GH-113695)

Use cursive to make it looking like mathematic formulas.

gh-58032: Do not use argparse.FileType in module CLIs and scripts (GH-113649)

Open and close files manually. It prevents from leaking files, preliminary creation of output files, and accidental closing of stdin and stdout.

gh-89850: Add default C implementations of persistent_id() and persistent_load() (GH-113579)

Previously the C implementation of pickle.Pickler and pickle.Unpickler classes did not have such methods and they could only be used if they were overloaded in subclasses or set as instance attributes.

Fixed calling super().persistent_id() and super().persistent_load() in subclasses of the C implementation of pickle.Pickler and pickle.Unpickler classes. It no longer causes an infinite recursion.

gh-66515: Fix locking of an MH mailbox without ".mh_sequences" file (GH-113482)

Guarantee that it either open an existing ".mh_sequences" file or create a new ".mh_sequences" file, but do not replace existing ".mh_sequences" file.

gh-111789: Use PyDict_GetItemRef() in Modules/_zoneinfo.c (GH-112078)
gh-109858: Protect zipfile from "quoted-overlap" zipbomb (GH-110016)

Raise BadZipFile when try to read an entry that overlaps with other entry or central directory.

gh-111139: Optimize math.gcd(int, int) (#113887)

Add a fast-path for the common case.

Benchmark:

python -m pyperf timeit \
    -s 'import math; gcd=math.gcd; x=2*3; y=3*5' \
    'gcd(x,y)'

Result: 1.07x faster (-3.4 ns)

Mean +- std dev: 52.6 ns +- 4.0 ns -> 49.2 ns +- 0.4 ns: 1.07x faster

GH-113860: All executors are now defined in terms of micro ops. Convert counter executor to use uops. (GH-113864)
gh-111968: Use per-thread freelists for float in free-threading (gh-113886)
Add @requires_zlib() decorator for gh-109858 tests (GH-113918)
gh-113625: Align object addresses in the Descriptor HowTo Guide (#113894)
gh-113753: Clear finalized bit when putting PyAsyncGenASend back into free list (#113754)
gh-112302: Point core developers to SBOM devguide on errors (#113490)

Co-authored-by: Hugo van Kemenade 1324225+hugovk@users.noreply.github.com

gh-77046: os.pipe() sets _O_NOINHERIT flag on fds (#113817)

On Windows, set _O_NOINHERIT flag on file descriptors created by os.pipe() and io.WindowsConsoleIO.

Add test_pipe_spawnl() to test_os.

Co-authored-by: Zackery Spytz zspytz@gmail.com

gh-87868: Skip test_one_environment_variable in test_subprocess when the platform or build cannot do that (#113867)
improve the assert for test_one_environment_variable
skip some test in test_subprocess when python is configured with shared
also skip the test if AddressSanitizer is enabled

Co-authored-by: Steve Dower steve.dower@microsoft.com

gh-113896: Fix test_builtin.BuiltinTest.test___ne__() (#113897)

Fix DeprecationWarning in test___ne__().

Co-authored-by: Nikita Sobolev mail@sobolevn.me

gh-111968: Unify naming scheme for freelist (gh-113919)
gh-89811: Check for valid tp_version_tag in specializer (GH-113558)
gh-112640: Add kwdefaults parameter to types.FunctionType.__new__ (#112641)
gh-112419: Document removal of sys.meta_path's 'find_module' fallback (#112421)

Co-authored-by: Erlend E. Aasland erlend@python.org

gh-113932: assert SyntaxWarning in test_compile.TestSpecifics.test_… (#113933)
gh-91960: Remove Cirrus CI configuration (#113938)

Remove .cirrus.yml which was already disabled by being renamed to .cirrus-DISABLED.yml. In total, Cirrus CI only run for less than one month.

gh-107901: jump leaving an exception handler doesn't need an eval break check (#113943)
GH-113853: Guarantee forward progress in executors (GH-113854)
gh-113845: Fix a compiler warning in Python/suggestions.c (GH-113949)
gh-111968: Use per-thread freelists for tuple in free-threading (gh-113921)
Update KDE recipe to match the standard use of the h parameter (gh-#113958)
gh-81489: Use Unicode APIs for mmap tagname on Windows (GH-14133)

Co-authored-by: Erlend E. Aasland erlend@python.org

GH-107678: Improve Unicode handling clarity in library/re.rst (#107679)
Improve kde graph with better caption and number formatting (gh-113967)
gh-111968: Explicit handling for finalized freelist (gh-113929)
gh-113903: Fix an IDLE configdialog test (#113973)

test_configdialog.HighPageTest.test_highlight_target_text_mouse fails if a line of the Highlight tab text sample is not visible. If so, bbox() in click_char() returns None and the unpacking iteration fails.

This occurred on a Devuan Linux system. Fix by moving the 'see character' call inside click_char, just before the bbox call.

Also, reduce the click_char calls to just one per tag name and replace the other nested function with a dict comprehension.

gh-113937 Fix failures in type cache tests due to re-running (GH-113953)
gh-113858: Cut down ccache size (GH-113945)

Cut down ccache size

Only save the ccache in the main reusable builds, not on builds that don't use special build options:
- Generated files check
- OpenSSL tests
- Hypothesis tests
Halve the max cache size, to 200M

gh-108364: In sqlite3, disable foreign keys before dumping SQL schema (#113957)

sqlite3.Connection.iterdump now ensures that foreign key support is disabled before dumping the database schema, if there is any foreign key violation.

Co-authored-by: Erlend E. Aasland erlend@python.org

gh-113027: Fix timezone check in test_variable_tzname in test_email (GH-113835)

Co-authored-by: Serhiy Storchaka storchaka@gmail.com

GH-113860: Get rid of _PyUOpExecutorObject (GH-113954)
Docs: Amend codeobject.co_lines docs; end number is exclusive (#113970)

The end number should be exclusive, not inclusive.

gh-111877: Fixes stat() handling for inaccessible files on Windows (GH-113716)
gh-113980: Fix resource warnings in test_asyncgen (GH-113984)
gh-107901: duplicate blocks with no lineno that have an eval break and multiple predecessors (#113950)
gh-113868: Add a number of MAP_* flags from macOS to module mmap (#113869)

The new flags were extracted from the macOS 14.2 SDK.

Co-authored-by: Serhiy Storchaka storchaka@gmail.com

gh-113710: Add types to the interpreter DSL (#113711)

Co-authored-by: Jules 57632293+JuliaPoo@users.noreply.github.com Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>

gh-113971: Make zipfile.ZipInfo._compresslevel public as .compress_level (#113969)

Make zipfile.ZipInfo.compress_level public.

A property is used to retain the behavior of the ._compresslevel.

People constructing zipfile.ZipInfo instances to pass into existing APIs to control per-file compression levels already treat this as public, there was never a reason for it not to be.

I used the more modern name compress_level instead of compresslevel as the keyword argument on other ZipFile APIs is called to be consistent with compress_type and a general long term preference of not runningwordstogether without a separator in names.

GH-111802: set a low recursion limit for test_bad_getattr() in test.pickletester (GH-113996)
gh-95649: Document that asyncio contains uvloop code (#107536)

Some of the asyncio SSL changes in GH-31275 1 were taken from v0.16.0 of the uvloop project 2. In order to comply with the MIT license, we need to just need to document the copyright information.

gh-101100: Fix Sphinx Lint warnings in Misc/ (#113946)

Fix Sphinx Lint warnings in Misc/

Fix a grammatical error in pycore_pymem.h (#112993)
Tutorial: Clarify 'nonzero exit status' in the appendix (#112039)
Link to the glossary for "magic methods" in MagicMock (#111292)

The MagicMock documentation mentions magic methods several times without actually pointing to the term in the glossary. This can be helpful for people to fully understand what those magic methods are.

datamodel: Fix a typo in object.__init_subclass__ (#111599)
GH-111801: set a lower recursion limit for test_infintely_many_bases() in test_isinstance (#113997)
gh-89159: Document missing TarInfo members (#91564)
GH-111798: skip test_super_deep() from test_call under pydebug builds on WASI (GH-114010)
GH-44626, GH-105476: Fix ntpath.isabs() handling of part-absolute paths (#113829)

On Windows, os.path.isabs() now returns False when given a path that starts with exactly one (back)slash. This is more compatible with other functions in os.path, and with Microsoft's own documentation.

Also adjust pathlib.PureWindowsPath.is_absolute() to call ntpath.isabs(), which corrects its handling of partial UNC/device paths like //foo.

Co-authored-by: Jon Foster jon@jon-foster.co.uk

pathlib ABCs: add _raw_path property (#113976)

It's wrong for the PurePathBase methods to rely so much on __str__(). Instead, they should treat the raw path(s) as opaque objects and leave the details to pathmod.

This commit adds a PurePathBase._raw_path property and uses it through many of the other ABC methods. These methods are all redefined in PurePath and Path, so this has no effect on the public classes.

Add module docstring for pathlib._abc. (#113691)
gh-101225: Increase the socket backlog when creating a multiprocessing.connection.Listener (#113567)

Increase the backlog for multiprocessing.connection.Listenerobjects created bymultiprocessing.managerandmultiprocessing.resource_sharerto significantly reduce the risk of getting a connection refused error when creating amultiprocessing.connection.Connection` to them.

gh-114014: Update fractions.Fraction()'s rational parsing regex (#114015)

Fix a bug in the regex used for parsing a string input to the fractions.Fraction constructor. That bug led to an inconsistent exception message being given for some inputs.

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Mark Dickinson dickinsm@gmail.com

gh-111803: Support loading more deeply nested lists in binary plist format (GH-114024)

It no longer uses the C stack. The depth of nesting is only limited by Python recursion limit setting.

gh-113317: Move global utility functions into libclinic (#113986)

Establish Tools/clinic/libclinic/utils.py and move the following functions over there:

compute_checksum()
create_regex()
write_file()

gh-101100: Fix Sphinx warnings in howto/urllib2.rst and library/http.client.rst (#114060)
Add pathlib._abc.PathModuleBase (#113893)

Path modules provide a subset of the os.path API, specifically those functions needed to provide PurePathBase functionality. Each PurePathBase subclass references its path module via a pathmod class attribute.

This commit adds a new PathModuleBase class, which provides abstract methods that unconditionally raise UnsupportedOperation. An instance of this class is assigned to PurePathBase.pathmod, replacing posixpath. As a result, PurePathBase is no longer POSIX-y by default, and all its methods raise UnsupportedOperation courtesy of pathmod.

Users who subclass PurePathBase or PathBase should choose the path syntax by setting pathmod to posixpath, ntpath, os.path, or their own subclass of PathModuleBase, as circumstances demand.

Replace pathlib._abc.PathModuleBase.splitroot() with splitdrive() (#114065)

This allows users of the pathlib-abc PyPI package to use posixpath or ntpath as a path module in versions of Python lacking os.path.splitroot() (3.11 and before).

gh-113317: Move FormatCounterFormatter into libclinic (#114066)
gh-109862: Fix test_create_subprocess_with_pidfd when it was run separately (GH-113991)
gh-114075: Capture test_compileall stdout output (#114076)

Co-authored-by: Alex Waygood Alex.Waygood@Gmail.com

gh-113666: Adding missing UF_ and SF_ flags to module 'stat' (#113667)

Add some constants to module 'stat' that are used on macOS.

Co-authored-by: Serhiy Storchaka storchaka@gmail.com

GH-112354: _GUARD_IS_TRUE_POP side-exits to target the next instruction, not themselves. (GH-114078)
gh-109598: make PyComplex_RealAsDouble/ImagAsDouble use complex (GH-109647)

PyComplex_RealAsDouble()/PyComplex_ImagAsDouble now try to convert an object to a complex instance using its __complex__() method before falling back to the __float__() method.

PyComplex_ImagAsDouble() also will not silently return 0.0 for non-complex types anymore. Instead we try to call PyFloat_AsDouble() and return 0.0 only if this call is successful.

gh-112532: Fix memory block count for free-threaded build (gh-113995)

This fixes _PyInterpreterState_GetAllocatedBlocks() and _Py_GetGlobalAllocatedBlocks() in the free-threaded builds. The gh-113263 change that introduced multiple mimalloc heaps per-thread broke the logic for counting the number of allocated blocks. For subtle reasons, this led to reported reference count leaks in the refleaks buildbots.

gh-111968: Use per-thread slice_cache in free-threading (gh-113972)
gh-99437: runpy: decode path-like objects before setting globals
gh-114070: correct the specification of digit in the float() docs (#114080)
gh-91539: Small performance improvement of urrlib.request.getproxies_environment() (#108771)

Small performance improvement of getproxies_environment() when there are many environment variables. In a benchmark with 5k environment variables not related to proxies, and 5 specifying proxies, we get a 10% walltime improvement.

gh-112087: Update list impl to be thread-safe with manual CS (gh-113863)
gh-78502: Add a trackfd parameter to mmap.mmap() (GH-25425)

If trackfd is False, the file descriptor specified by fileno will not be duplicated.

Co-authored-by: Erlend E. Aasland erlend@python.org Co-authored-by: Petr Viktorin encukou@gmail.com Co-authored-by: Serhiy Storchaka storchaka@gmail.com

gh-114101: Correct PyErr_Format arguments in _testcapi module (#114102)

use PyErr_SetString() iso. PyErr_Format() in parse_tuple_and_keywords()
fix misspelled format specifier in CHECK_SIGNNESS() macro

GH-113655: Lower the C recursion limit on various platforms (GH-113944)
gh-113358: Fix rendering tracebacks with exceptions with a broken getattr (GH-113359)

Co-authored-by: Irit Katriel 1055913+iritkatriel@users.noreply.github.com

gh-113238: add Anchor to importlib.resources (#113801)

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>

gh-114077: Fix OverflowError in socket.sendfile() when pass count >2GiB (GH-114079)
Docs: Align multiprocessing.shared_memory docs with Sphinx recommendations (#114103)

add :class: and :mod: markups where needed
fix incorrect escaping of a star in ShareableList arg spec
mark up parameters with stars: val
mark up list of built-in types using list markup
remove unneeded parentheses from :meth: markups

gh-113858: GH Actions: Limit max ccache size for the asan build (GH-114113)
gh-114107: Fix importlib.resources symlink test if symlinks aren't supported (#114108)

gh-114107: Fix symlink test if symlinks aren't supported

gh-102468: Document PyCFunction_New* and PyCMethod_New (GH-112557)

Co-authored-by: Erlend E. Aasland erlend.aasland@protonmail.com

gh-113626: Add allow_code parameter in marshal functions (GH-113648)

Passing allow_code=False prevents serialization and de-serialization of code objects which is incompatible between Python versions.

gh-111968: Use per-thread freelists for PyContext in free-threading (gh-114122)
gh-114107: test.pythoninfo logs Windows Developer Mode (#114121)

Also, don't skip the whole collect_windows() if ctypes is missing.

Log also ctypes.windll.shell32.IsUserAnAdmin().

Fix an incorrect comment in iobase_is_closed (GH-102952)

This comment appears to have been mistakenly copied from what is now called iobase_check_closed() in commit 4d9aec022063.

Also unite the iobase_check_closed() code with the relevant comment.

Co-authored-by: Serhiy Storchaka storchaka@gmail.com

gh-114069: Revise Tutorial Methods paragraph (#114127)

Remove excess words in the first and third sentences.

gh-114096: Restore privileges in _winapi.CreateJunction after creating the junction (GH-114089)

This avoids impact on later parts of the application which may be able to do things they otherwise shouldn't.

Docs: Improve multiprocessing.SharedMemory reference (#114093)

Align the multiprocessing shared memory docs with Diatáxis's recommendations for references.

use a parameter list for the SharedMemory.init() argument spec
use the imperative mode
use versionadded, not versionchanged, for added parameters
reflow touched lines according to SemBr

Fix 'expresion' typo in IDLE doc (#114130)

The substantive change is on line 577/593. Rest is header/footer stuff ignored when displaying.

gh-113659: Skip hidden .pth files (GH-113660)

Skip .pth files with names starting with a dot or hidden file attribute.

Clean up backslash avoiding code in ast, fix typo (#113605)

As of #108553, the _avoid_backslashes code path is dead

scape_newlines was introduced in #110271. Happy to drop the typo fix if we don't want it

GH-114013: fix setting HOSTRUNNER for Tools/wasm/wasi.py (GH-114097)

Also fix tests found failing under a pydebug build of WASI thanks to make test working due to this change.

Co-authored-by: Hugo van Kemenade 1324225+hugovk@users.noreply.github.com

gh-112529: Track if debug allocator is used as underlying allocator (#113747)
gh-112529: Track if debug allocator is used as underlying allocator

The GC implementation for free-threaded builds will need to accurately detect if the debug allocator is used because it affects the offset of the Python object from the beginning of the memory allocation. The current implementation of _PyMem_DebugEnabled only considers if the debug allocator is the outer-most allocator; it doesn't handle the case of "hooks" like tracemalloc being used on top of the debug allocator.

This change enables more accurate detection of the debug allocator by tracking when debug hooks are enabled.

Simplify _PyMem_DebugEnabled
gh-113655: Increase default stack size for PGO builds to avoid C stack exhaustion (GH-114148)
GH-78988: Document pathlib.Path.glob() exception propagation. (#114036)

We propagate the OSError from the is_dir() call on the top-level directory, and suppress all others.

gh-94220: Align fnmatch docs with the implementation and amend markup (#114152)

Align the argument spec for fnmatch functions with the actual implementation.
Update Sphinx markup to recent recommandations.
Add link to 'iterable' glossary entry.

Co-authored-by: Adam Turner 9087854+AA-Turner@users.noreply.github.com

Fix typo in c_annotations.py comment (#108773)

"compatability" => "compatibility"

GH-110109: pathlib docs: bring from_uri() and as_uri() together. (#110312)

This is a very soft deprecation of PurePath.as_uri(). We instead document it as a Path method, and add a couple of sentences mentioning that it's also available in PurePath.

Co-authored-by: Adam Turner 9087854+AA-Turner@users.noreply.github.com

gh-106293: Fix typos in Objects/object_layout.md (#106294)

Co-authored-by: Terry Jan Reedy tjreedy@udel.edu

gh-88531 Fix dataclass post_init/init interplay documentation (gh-107404)
Simplify post_init example usage. It applies to all base classes, not just dataclasses.
gh-112043: Align concurrent.futures.Executor.map docs with implementation (#114153)

The first parameter is named 'fn', not 'func'.

gh-81479: For Help => IDLE Doc, stop double-spacing some lists. (#114168)

This matches Firefox format. Edge double-spaces non-simple list but I think it looks worse.

gh-72284: Revise lists in IDLE doc (#114174)

Tkinter is a fact, not necessarily a feature.

Reorganize editor key bindings in a logical order and remove those that do not work, at least on Windows.

Improve shell bindings list.

gh-86179: Skip test case that fails on POSIX with unversioned binary (GH-114136)
Python 3.13.0a3
gh-104282: Fix null pointer dereference in lzma._decode_filter_properties (GH-104283)
gh-111301: Advertise importlib methods removal in What's new in Python 3.12 (GH-111630)
gh-112343: pdb: Use tokenize to replace convenience variables (#112380)
Post 3.13.0a3
gh-114178: Fix generate_sbom.py for out-of-tree builds (#114179)
gh-114070: fix token reference warnings in expressions.rst (#114169)
gh-114149: [Enum] fix tuple subclass handling when using custom new (GH-114160)
gh-105102: Fix nested unions in structures when the system byteorder is the opposite (GH-105106)
Fix typo in tkinter.ttk.rst (GH-106157)
gh-38807: Fix race condition in Lib/trace.py (GH-110143)

Instead of checking if a directory does not exist and thereafter creating it, directly call os.makedirs() with the exist_ok=True.

gh-112984 Update Windows build and installer for free-threaded builds (GH-113129)
gh-112984: Fix test_ctypes.test_loading.test_load_dll_with_flags when directory name includes a dot (GH-114217)
gh-114149: [Enum] revert #114160 and add more tuple-subclass tests (GH-114215)

This reverts commit 05e142b1543eb9662d6cc33722e7e16250c9219f.

gh-104522: Fix OSError raised when run a subprocess (#114195)

Only set filename to cwd if it was caused by failed chdir(cwd).

_fork_exec() now returns "noexec:chdir" for failed chdir(cwd).

Co-authored-by: Robert O'Shea PurityLake@users.noreply.github.com

gh-113205: test_multiprocessing.test_terminate: Test the API on threadpools (#114186)

gh-113205: test_multiprocessing.test_terminate: Test the API works on threadpools

Threads can't be forced to terminate (without potentially corrupting too much state), so the expected behaviour of ThreadPool.terminate is to wait for the currently executing tasks to finish.

The entire test was skipped in GH-110848 (0e9c364f4ac18a2237bdbac702b96bcf8ef9cb09). Instead of skipping it entirely, we should ensure the API eventually succeeds: use a shorter timeout.

For the record: on my machine, when the test is un-skipped, the task manages to start in about 1.5% cases.

gh-114211: Update EmailMessage doc about ordered keys (#114224)

Ordered keys are no longer unlike 'real dict's.

gh-96905: In IDLE code, stop redefining built-ins 'dict' and 'object' (#114227)

Prefix 'dict' with 'o', 'g', or 'l' for 'object', 'global', or 'local'. Suffix 'object' with '_'.

gh-114231: Fix indentation in enum.rst (#114232)
gh-104522: Fix test_subprocess failure when build Python in the root home directory (GH-114236)
gh-104522: Fix test_subprocess failure when build Python in the root home directory

EPERM is raised when setreuid() fails. EACCES is set in execve() when the test user has not access to sys.executable.

gh-114050: Fix crash when more than two arguments are passed to int() (GH-114067)

Co-authored-by: Kirill Podoprigora kirill.bast9@mail.ru

gh-103092: Convert some _ctypes metatypes to heap types (GH-113620)

Co-authored-by: Erlend E. Aasland erlend@python.org

gh-110345: show Tcl/Tk patchlevel in tkinter._test() (GH-110350)
Delete unused macro (GH-114238)
gh-108303: Move all doctest related files and tests to Lib/test/test_doctest/ (#112109)

Co-authored-by: Brett Cannon brett@python.org

gh-114198: Rename dataclass replace argument to 'self' (gh-114251)

This change renames the dataclass replace method's first argument name from 'obj' to 'self'.

gh-114087: Speed up dataclasses._asdict_inner (#114088)
gh-111968: Use per-thread freelists for generator in free-threading (gh-114189)
gh-112092: clarify unstable ABI recompilation requirements (#112093)

Use different versions in the examples for when extensions do and do not need to be recompiled to make the examples easier to understand.

gh-114123: Migrate docstring from _csv to csv (#114124)

Co-authored-by: Adam Turner 9087854+AA-Turner@users.noreply.github.com Co-authored-by: Éric merwok@netwok.org

gh-112087: Remove duplicated critical_section (gh-114268)
gh-111968: Fix --without-freelists build (gh-114270)
gh-114286: Fix maybe-uninitialized warning in Modules/_io/fileio.c (GH-114287)
gh-113884: Refactor queue.SimpleQueue to use a ring buffer to store items (#114259)

Use a ring buffer instead of a Python list in order to simplify the process of making queue.SimpleQueue thread-safe in free-threaded builds. The ring buffer implementation has no places where critical sections may be released.

gh-114275: Skip doctests that use asyncio in test_pdb for WASI builds (#114309)
gh-114265: move line number propagation before cfg optimization, remove guarantee_lineno_for_exits (#114267)
Retain shorter tables of contents for Sphinx 5.2.3+ (#114318)

Disable toc_object_entries, new in Sphinx 5.2.3

Add a clean subcommand to Tools/wasm/wasi.py (GH-114274)
GH-79634: Accept path-like objects as pathlib glob patterns. (#114017)

Allow os.PathLike objects to be passed as patterns to pathlib.Path.glob() and rglob(). (It's already possible to use them in PurePath.match())

While we're in the area:

Allow empty glob patterns in PathBase (but not Path)
Speed up globbing in PathBase by generating paths with trailing slashes only as a final step, rather than for every intermediate directory.
Simplify and speed up handling of rare patterns involving both ** and .. segments.

GH-113225: Speed up pathlib.Path.walk(top_down=False) (#113693)

Use _make_child_entry() rather than _make_child_relpath() to retrieve path objects for directories to visit. This saves the allocation of one path object per directory in user subclasses of PathBase, and avoids a second loop.

This trick does not apply when walking top-down, because users can affect the walk by modifying dirnames in-place.

A side effect of this change is that, in bottom-up mode, subdirectories of each directory are visited in reverse order, and that this order doesn't match that of the names in dirnames. I suspect this is fine as the order is arbitrary anyway.

gh-114332: Fix the flags reference for re.compile() (#114334)

The GH-93000 change set inadvertently caused a sentence in re.compile() documentation to refer to details that no longer followed. Correct this with a link to the Flags sub-subsection.

Co-authored-by: Adam Turner 9087854+aa-turner@users.noreply.github.com

GH-99380: Update to Sphinx 7 (#99381)
Docs: structure the ftplib reference (#114317)

Introduce the following headings and subheadings:

Reference
- FTP objects
- FTP_TLS objects
- Module variables

gh-112529: Use GC heaps for GC allocations in free-threaded builds (gh-114157)
gh-112529: Use GC heaps for GC allocations in free-threaded builds

The free-threaded build's garbage collector implementation will need to find GC objects by traversing mimalloc heaps. This hooks up the allocation calls with the correct heaps by using a thread-local "current_obj_heap" variable.

Refactor out setting heap based on type
gh-114281: Remove incorrect type hints from asyncio.staggered (#114282)

Co-authored-by: Adam Turner 9087854+AA-Turner@users.noreply.github.com

Docs: Add missing line continuation to FTP_TLS class docs (#114352)

Regression introduced by b1ad5a5d4.

Remove the non-test Lib/test/time_hashlib.py. (#114354)

I believe I added this while chasing some performance of hash functions when I first created hashlib. It hasn't been used since, is frankly trivial, and not a test.

Remove deleted time_hashlib.py from Lib/test/.ruff.toml (#114355)
Fix the confusing "User-defined methods" reference in the datamodel (#114276)

Co-authored-by: Adam Turner 9087854+AA-Turner@users.noreply.github.com Co-authored-by: Sergey B Kirpichev skirpichev@gmail.com

Docs: mark up the FTP debug levels as a list (#114360)

Co-authored-by: Hugo van Kemenade 1324225+hugovk@users.noreply.github.com

gh-101100: Fix sphinx warnings in Doc/c-api/memory.rst (#114373)
gh-80931: Skip some socket tests while hunting for refleaks on macOS (#114057)

Some socket tests related to sending file descriptors cause a file descriptor leak on macOS, all of them tests that send one or more descriptors than cannot be received on the read end. This appears to be a platform bug.

This PR skips those tests when doing a refleak test run to avoid hiding other problems.

Docs: mark up FTP() constructor with param list (#114359)

Co-authored-by: Hugo van Kemenade 1324225+hugovk@users.noreply.github.com

gh-114384: Align sys.set_asyncgen_hooks signature in docs to reflect implementation (#114385)
Docs: link to sys.stdout in ftplib docs (#114396)

Co-authored-by: Donghee Na donghee.na@python.org Co-authored-by: Sam Gross colesbury@gmail.com Co-authored-by: Irit Katriel 1055913+iritkatriel@users.noreply.github.com Co-authored-by: Itamar Oren itamarost@gmail.com Co-authored-by: Alex Waygood Alex.Waygood@Gmail.com Co-authored-by: Hugo van Kemenade hugovk@users.noreply.github.com Co-authored-by: Filip Łapkiewicz 80906036+fipachu@users.noreply.github.com Co-authored-by: Brandt Bucher brandtbucher@microsoft.com Co-authored-by: Jamie Phan jamie@ordinarylab.dev Co-authored-by: wookie184 wookie1840@gmail.com Co-authored-by: Guido van Rossum guido@python.org Co-authored-by: Barney Gale barney.gale@gmail.com Co-authored-by: Mark Shannon mark@hotpy.org Co-authored-by: Pablo Galindo Salgado Pablogsal@gmail.com Co-authored-by: Hugo van Kemenade 1324225+hugovk@users.noreply.github.com Co-authored-by: Zackery Spytz zspytz@gmail.com Co-authored-by: Xavier de Gaye xdegaye@gmail.com Co-authored-by: Serhiy Storchaka storchaka@gmail.com Co-authored-by: Ronald Oussoren ronaldoussoren@mac.com Co-authored-by: Terry Jan Reedy tjreedy@udel.edu Co-authored-by: AN Long aisk@users.noreply.github.com Co-authored-by: Grigoriev Semyon 33061489+grigoriev-semyon@users.noreply.github.com Co-authored-by: Rami 72725910+ramikg@users.noreply.github.com Co-authored-by: Christian Heimes christian@python.org Co-authored-by: Gregory P. 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