Added a new stable API function ``PyType_FromMetaclass``, which mirrors
the behavior of ``PyType_FromModuleAndSpec`` except that it takes an
additional metaclass argument. This is, e.g., useful for language
binding tools that need to store additional information in the type
object.
Python now always use the ``%zu`` and ``%zd`` printf formats to
format a size_t or Py_ssize_t number. Building Python 3.12 requires a
C11 compiler, so these printf formats are now always supported.
* PyObject_Print() and _PyObject_Dump() now use the printf %zd format
to display an object reference count.
* Update PY_FORMAT_SIZE_T comment.
* Remove outdated notes about the %zd format in PyBytes_FromFormat()
and PyUnicode_FromFormat() documentations.
* configure no longer checks for the %zd format and no longer defines
PY_FORMAT_SIZE_T macro in pyconfig.h.
* pymacconfig.h no longer undefines PY_FORMAT_SIZE_T: macOS 10.4 is
no longer supported. Python 3.12 now requires macOS 10.6 (Snow
Leopard) or newer.
Update documentation of PyUnicode_DecodeFSDefault(),
PyUnicode_DecodeFSDefaultAndSize() and PyUnicode_EncodeFSDefault():
they now use the filesystem encoding and error handler of PyConfig,
Py_FileSystemDefaultEncoding and Py_FileSystemDefaultEncodeErrors
variables are no longer used.
This fixes an issue on tutorial/classes.rst section 9.4 where the example "class Warehouse"
was truncated when pressing the >>> button to hide the prompts and output.
As discussed in #92611 and #92564 and as a followup to PR #92612 , this 3.11+ only PR uses the proper `deprecated-removed` role for the modules deprecated by PEP 593 (PEP-594) to clearly indicate to users that a removal version is planned and what it is, so they can prepare accordingly or voice any unanticipated impacts.
Related to #92792 ; if we decide to backport that PR, the upgrade to using `deprecated-removed` on those functions can be moved to this one.
API members documented in sphinx have an object name, which allow the
documentation to be linked from other projects. Sphinx calculates the
object name by prefixing the current module name to the directive
argument, e.g:
.. module:: foo
.. function:: bar.baz
becomes foo.bar.baz. Since these anchors aren't displayed in the
documentation, some mistakes have crept in, namely the Python stdlib
documentation currently contains the objects:
* asyncio.asyncio.subprocess.DEVNULL
* asyncio.asyncio.subprocess.PIPE
* asyncio.asyncio.subprocess.STDOUT
* asyncio.asyncio.subprocess.Process
* multiprocessing.sharedctypes.multiprocessing.Manager
* xml.etree.ElementTree.xml.etree.ElementInclude
This commit fixes this by making use of the :module: option which
without an argument makes sphinx take the directive argument as is
for the object name (avoiding the prefixing of the current module
name that led to these broken object names).
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
The following sqlite3 features were deprecated in 3.10, scheduled for
removal in 3.12:
- sqlite3.OptimizedUnicode (gh-23163)
- sqlite3.enable_shared_cache (gh-24008)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Signed-off-by: Erlend E. Aasland <erlend.aasland@protonmail.com>
* Restore default role check in `make check`.
* Options first, then files.
* Update `make.bat` too.
* Add a comment explaining the extra options.
* No reason to ignore the README.rst.
* Enable default-role check in sphinx-lint.
Co-authored-by: Julien Palard <julien@palard.fr>
* Update sphinx-lint default-role check.
* Fix use of the default role in the docs.
* Update make.bat to check for the default role too.
* Fix comment in make.bat.
Co-authored-by: Julien Palard <julien@palard.fr>
Remove the PyUnicode_InternImmortal() function and the
SSTATE_INTERNED_IMMORTAL macro.
The PyUnicode_InternImmortal() function is still exported in the
stable ABI. The function is removed from the API.
PyASCIIObject.state.interned size is now a single bit, rather than 2
bits.
Keep SSTATE_NOT_INTERNED and SSTATE_INTERNED_MORTAL macros for
backward compatibility, but no longer use them internally since the
interned member is now a single bit and so can only have two values
(interned or not interned).
Update stats of _PyUnicode_ClearInterned().
# Fix typo in argparse docs.
> Sometimes, when dealing with **a** particularly long argument list**s**, [...]
Mixture between plural and singular forms is incorrect. Use singular consistently since typically only a single argument list is employed. Change to:
> Sometimes, when dealing with a particularly long argument list, [...]
No issue was opened, since this is a trivial change.
Automerge-Triggered-By: GH:rhettinger
Use _Py_CAST() and _Py_STATIC_CAST() in macros wrapping static inline
functions of unicodeobject.h.
Change also the kind type from unsigned int to int: same parameter
type than PyUnicode_FromKindAndData().
The limited API version 3.11 no longer casts arguments to expected
types.
Remove the token.h header file. There was never any public tokenizer
C API. The token.h header file was only designed to be used by Python
internals.
Move Include/token.h to Include/internal/pycore_token.h. Including
this header file now requires that the Py_BUILD_CORE macro is
defined. It no longer checks for the Py_LIMITED_API macro.
Rename functions:
* PyToken_OneChar() => _PyToken_OneChar()
* PyToken_TwoChars() => _PyToken_TwoChars()
* PyToken_ThreeChars() => _PyToken_ThreeChars()
Lines beginning with ``?`` try to help understanding the given diff.
The output can be hard to understand when it contains whitespace characters, such as spaces, tabs or line breaks.
While previously only tabs were mentioned, now all are listed.
Automerge-Triggered-By: GH:rhettinger
I merged this without a What's New entry to avoid merge conflicts, so here's the follow-up adding the entry.
@Kab1r do you mind reviewing?
Closes#91928
Automerge-Triggered-By: GH:pganssle
We could try to remedy this by taking a slice, but we then run into an issue where the empty string will match altsep on POSIX. That rabbit hole could keep getting deeper.
A proper fix for the original issue involves making pathlib's path normalisation more configurable - in this case we want to retain trailing slashes, but in other we might want to preserve `./` prefixes, or elide `../` segments when we're sure we won't encounter symlinks.
This reverts commit ea2f5bcda1.
* Some handlers were wrongly described as text-encoding only, but actually they can also be used in text-decoding.
* Add more description to each handler.
* Add two REPL examples.
* Add indexes for Error Handler's name.
Co-authored-by: Kyle Stanley <aeros167@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Only sequence of ASCII digits is now accepted as a numerical reference.
The group name in bytes patterns and replacement strings can now only
contain ASCII letters and digits and underscore.
Add methods enterContext() and enterClassContext() in TestCase.
Add method enterAsyncContext() in IsolatedAsyncioTestCase.
Add function enterModuleContext().
Given that 2.7 has now been end-of-life for two and a half years,
I don't think we need such a detailed explanation here anymore of
the differences between Python 2 and Python 3.
* Remove redundant footnote ref: the footnote has been removed
* Fix footnote ref to match footnote
* Convert footnotes into reST footnotes: will error if missing
* gh-92308: Add Pending Removal section to 3.11 What's New
* Use compact list; drop attributions
* Add short text, and also missing PyUnicode_InternImmortal
* Fix formatting
* markup fix
* Update Doc/whatsnew/3.11.rst
Co-authored-by: Victor Stinner <vstinner@python.org>
* Apply suggestions from code review
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
Add a closure keyword-only parameter to exec(). It can only be specified when exec-ing a code object that uses free variables. When specified, it must be a tuple, with exactly the number of cell variables referenced by the code object. closure has a default value of None, and it must be None if the code object doesn't refer to any free variables.
- add member() and nonmember() functions
- add deprecation warning for internal classes in enums not
becoming members in 3.13
Co-authored-by: edwardcwang
Prevent `max_tasks_per_child` use with a "fork" mp_context to avoid deadlocks.
Also defaults to "spawn" when no mp_context is supplied for safe convenience.
Add the -P command line option and the PYTHONSAFEPATH environment
variable to not prepend a potentially unsafe path to sys.path.
* Add sys.flags.safe_path flag.
* Add PyConfig.safe_path member.
* Programs/_bootstrap_python.c uses config.safe_path=0.
* Update subprocess._optim_args_from_interpreter_flags() to handle
the -P command line option.
* Modules/getpath.py sets safe_path to 1 if a "._pth" file is
present.
One more thing that can help prevent people from using `preexec_fn`.
Also adds conditional skips to two tests exposing ASAN flakiness on the Ubuntu 20.04 Address Sanitizer Github CI system. When that build is run on more modern systems the "problem" does not show up. It seems ASAN implementation related.
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Convert the following macros to static inline functions:
* PyByteArray_AS_STRING()
* PyByteArray_GET_SIZE()
* PyBytes_AS_STRING()
* PyBytes_GET_SIZE()
Limited C API version 3.11 no longer casts arguments.
Add _PyBytes_CAST() and _PyByteArray_CAST() macros.
Since the underlying file-like objects (either `io.BytesIO`,
or a true file object) all implement the `io.IOBase`
interface, the `SpooledTemporaryFile` should as well.
Additionally, since the underlying file object will either be an
instance of an `io.BufferedIOBase` (for binary mode) or an
`io.TextIOBase` (for text mode), methods for these classes were also
implemented.
In every case, the required methods and properties are simply delegated
to the underlying file object.
Co-authored-by: Gary Fernie <Gary.Fernie@skyscanner.net>
Co-authored-by: Inada Naoki <songofacandy@gmail.com>
Fixed few typos and enhanced few paragraphs for your review and consideration.
Trivial contribution towards continuous improvement, so no issue was raised.
Automerge-Triggered-By: GH:rhettinger
#85757https://docs.python.org/3/tutorial/datastructures.html#nested-list-comprehensions
I do think this is clearer, but I wonder if 'nested' should be kept though to get the terminology out there more often. So perhaps it could be something like 'inner (nested) listcomp' or 'nested (inner) listcomp' despite sounding a bit redundant
Automerge-Triggered-By: GH:rhettinger
example.com is reserved by the IANA as special-use domain name for documentation
purposes. The domain names are used widely in books, tutorials, sample network
configurations, and generally as examples for the use of domain name.
On the other hand, mydomain.com is real Domain Name Registration service.
Only sequence of ASCII digits will be accepted as a numerical reference.
The group name in bytes patterns and replacement strings could only
contain ASCII letters and digits and underscore.
This gets all the major items in #91491. However, I didn't get around to
adding what's new entries for the large clump of changes in the last
bullet point in the issue.
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Also updated `make -C htmlview` so it used a full path with `file://`, because the original didn't open the page (macOS).
For example:
```sh
cd Doc
# Doesn't open anything:
python3 -c "import webbrowser; webbrowser.open('build/html/index.html')"
# Opens the docs page e.g. file:///Users/hugo/github/cpython/Doc/build/html/index.html :
python3 -c "import os, webbrowser; webbrowser.open('file://' + os.path.realpath('build/html/index.html'))"
```
https://bugs.python.org/issue36329
When Python is built with "./configure --enable-pystats" (if the
Py_STATS macro is defined), the _Py_GetSpecializationStats() function
must be exported, since it's used by the _opcode extension which is
built as a shared library.
Just in case there is ever an issue with _posixsubprocess's use of
vfork() due to the complexity of using it properly and potential
directions that Linux platforms where it defaults to on could take, this
adds a failsafe so that users can disable its use entirely by setting
a global flag.
No known reason to disable it exists. But it'd be a shame to encounter
one and not be able to use CPython without patching and rebuilding it.
See the linked issue for some discussion on reasoning.
Also documents the existing way to disable posix_spawn.
Fix signal.NSIG value on FreeBSD to accept signal numbers greater
than 32, like signal.SIGRTMIN and signal.SIGRTMAX.
* Add Py_NSIG constant.
* Add pycore_signal.h internal header file.
* _Py_Sigset_Converter() now includes the range of valid signals in
the error message.
* Add a new :gh:`...` role for GitHub issues.
* Fix a GitHub id to use the :gh: role.
* Add Misc/NEWS entry.
* Refactoring and rephrasing.
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Also inline necessary functionality from `sndhdr` into `email.mime.audio` for `MIMEAudio`.
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
Py_REFCNT(), Py_TYPE(), Py_SIZE() and Py_IS_TYPE() functions argument
type is now "PyObject*", rather than "const PyObject*".
* Replace also "const PyObject*" with "PyObject*" in functions:
* _Py_strhex_impl()
* _Py_strhex_with_sep()
* _Py_strhex_bytes_with_sep()
* Remove _PyObject_CAST_CONST() and _PyVarObject_CAST_CONST() macros.
* Py_IS_TYPE() can now use Py_TYPE() in its implementation.
Add an optional keyword 'shutdown_timeout' parameter to the
multiprocessing.BaseManager constructor. Kill the process if
terminate() takes longer than the timeout.
Multiprocessing tests pass test.support.SHORT_TIMEOUT
to BaseManager.shutdown_timeout.
No work has been done to move this forward. On the theory that perfect is the enemy of good, I'm going to push it and we can make minor edits as needed afterwards.
Wenzel Jakob
jackh-ncl
Victor Stinner
Miro Hrončok
Jordan Borean
Julien Palard
Nicolas Haller
Steve Dower
Shantanu
Stanley
Jelle Zijlstra
Serhiy Storchaka
Raymond Hettinger
Brett Cannon
CAM Gerlach
Rafael Fontenelle
Pavel
Mark Shannon
Alex Waygood
Martin Fischer
Zackery Spytz
Jan Brasna
Duprat
Inada Naoki
180909
David CARLIER
Erlend Egeberg Aasland
Charlie Zhao
Nikita Sobolev
谭九鼎
Hugo van Kemenade
Pablo Galindo Salgado
Ezio Melotti
yashlad681
Gabi Nagy
thueringa
Mikhail Terekhov
Jürgen Gmach
Gregory P. Smith
Géry Ogam
andrei kulakov
Paul Ganssle
Cheryl Sabella
Barney Gale
Ken Jin
Ma Lin
Godefroid Chapelle
Davide Rizzo
Oleg Iarygin
Dong-hee Na
Erlend Egeberg Aasland
larryhastings
gophra
Matt Wozniski
Ethan Furman
Hai Shi
cibofo
Soumendra Ganguly
Robert Howlett
Sebastian Rittau
Carl Meyer
Kabir Kwatra
Robert Yang
Samodya Abey
Carey Metcalfe
Meer Suri
Yassir Karroum
David Gilbertson
Benjamin Peterson
Sam Ezeh
Eric V. Smith
Thaddeus1499
Harsh
Matt Harding
vainaijr
Sam Bull
Antonio Andrade
Yurii Karabas
Motoki Naruse
Dennis Sweeney
Eisuke Kawashima
Ashwin Ramaswami
Zac Hatfield-Dodds
Christian Heimes
Dominic Davis-Foster
Petr Viktorin
Irit Katriel
AJ Jordan
Susan Su
Gouvernathor