gh-134449: fix grammar for `precision_with_grouping` in format description (GH-134608)
This amends commit f39a07be47.
(cherry picked from commit 7828d52680)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
gh-134835: Remove outdated list from `howto/urllib2.rst` (GH-134844)
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(cherry picked from commit 3704171415)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
It now supports most callables, full args, and return values.
(cherry picked from commit 52deabe, AKA gh-133484)
Co-authored-by: Eric Snow ericsnowcurrently@gmail.com
Contrary to the current docs, ast.Constant will never hold containers
such as frozenset or tuple; the Python parser only emits it for simple
literals.
For precision, add the exact list of types that may be contained in an
ast.Constant.
(cherry picked from commit 381020d41f)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
This adds a warning about the possibly-missing NUL terminator, but in a way
that doesn't make it sound like a bug/wart.
(cherry picked from commit b783e1791b)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
GH-134848: Use a set to store ``AuditEvents.sources`` (GH-134849)
(cherry picked from commit b265a7ddeb)
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Update outdated statement from `math` about C standard (GH-134621)
(cherry picked from commit 21672b694b)
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
Fix typing.TYPE_CHECKING docs to reflect PEP 649. (GH-134813)
typing.TYPE_CHECKING should no longer steer users towards
manual or automatic stringization (and PEP 563); PEP 649
makes all that unnecessary.
(cherry picked from commit d7256ae4d7)
Co-authored-by: larryhastings <larry@hastings.org>
gh-134789: Document del s[i] operation for mutable sequences (GH-134804)
[main] Update stdtypes.rst
- Added explicit mention of `del s[i]` (item deletion by index) to the Mutable Sequence Types section.
- Clarified that this operation removes the item at the specified index from the sequence.
- Addresses issue GH-134789.
(cherry picked from commit 967f361993)
Co-authored-by: Rishabh Singh <67859818+rishabh11336@users.noreply.github.com>
gh-133678: Document C API third party tools (GH-134526)
(cherry picked from commit c3c88064f5)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Steve Dower <steve.dower@python.org>
gh-134160: Use multi-phase init in documentation examples (GH-134296)
(cherry picked from commit 96905bdd27)
Co-authored-by: neonene <53406459+neonene@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
gh-134675: Add t-string prefixes to tokenizer module, lexical analysis doc, and add a test to make sure we catch this error in the future. (GH-134734)
* Add t-string prefixes to _all_string_prefixes, and add a test to make sure we catch this error in the future.
* Update lexical analysis docs for t-string prefixes.
(cherry picked from commit 08c78e02fa)
Co-authored-by: Eric V. Smith <ericvsmith@users.noreply.github.com>
gh-119180: Updates to PEP 649/749 docs (GH-134640)
- Mention (again) that `type.__annotations__` is unsafe. It is now safe
when using only classes defined under PEP 649 semantics, but not with
classes defined using `from __future__ import annotations`.
- Mention that annotations on instances no longer work. There was already
an issue about this.
- Mention the general changes in the "Porting to Python 3.14" section.
- `annotationlib` was proposed by PEP-749, not PEP-649.
(cherry picked from commit 7291eaba8b)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Emma Smith <emma@emmatyping.dev>
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
gh-91048: Refactor and optimize remote debugging module (#134652)
Completely refactor Modules/_remote_debugging_module.c with improved
code organization, replacing scattered reference counting and error
handling with centralized goto error paths. This cleanup improves
maintainability and reduces code duplication throughout the module while
preserving the same external API.
Implement memory page caching optimization in Python/remote_debug.h to
avoid repeated reads of the same memory regions during debugging
operations. The cache stores previously read memory pages and reuses
them for subsequent reads, significantly reducing system calls and
improving performance.
Add code object caching mechanism with a new code_object_generation
field in the interpreter state that tracks when code object caches need
invalidation. This allows efficient reuse of parsed code object metadata
and eliminates redundant processing of the same code objects across
debugging sessions.
Optimize memory operations by replacing multiple individual structure
copies with single bulk reads for the same data structures. This reduces
the number of memory operations and system calls required to gather
debugging information from the target process.
Update Makefile.pre.in to include Python/remote_debug.h in the headers
list, ensuring that changes to the remote debugging header force proper
recompilation of dependent modules and maintain build consistency across
the codebase.
Also, make the module compatible with the free threading build as an extra :)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit 42b25ad4d3)
gh-115999: Add PyCodeObject.co_tlbc to the debug offsets (GH-134286)
(cherry picked from commit dd7f113057)
Signed-off-by: Pablo Galindo <pablogsal@gmail.com>
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
gh-133960: Improve typing.evaluate_forward_ref (GH-133961)
As explained in GH-133960, this removes most of the behavior differences with ForwardRef.evaluate.
The remaining difference is about recursive evaluation of forwardrefs; this is practically useful
in cases where an annotation refers to a type alias that itself is string-valued.
This also improves several edge cases that were previously not handled optimally. For example,
the function now takes advantage of the partial evaluation behavior of ForwardRef.evaluate() to
evaluate more ForwardRefs in the FORWARDREF format.
This also fixes GH-133959 as a side effect, because the buggy behavior in GH-133959 derives from
evaluate_forward_ref().
(cherry picked from commit 57fef27cfc)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
annotationlib docs: note that ForwardRef.evaluate eventually defaults to empty globals (GH-134661)
(cherry picked from commit b51b08a0a5)
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
gh-80334: fix multiprocessing.freeze_support for other spawn platforms (GH-134462)
Doc/library/multiprocessing.rst: freeze_support: Change to specify spawn method instead of platform
Have multiprocessing.freeze_support() enable on spawn, not just win32.
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(cherry picked from commit 80284b5c5e)
Co-authored-by: Eddy Mulyono <eddymul@gmail.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Further improves Advanced installation docs for PyManager (GH-134541)
(cherry picked from commit 99a9ab1c64)
Co-authored-by: Steve Dower <steve.dower@python.org>
This is mostly a refactor to clean things up a bit, most notably the "XI namespace" code.
Making the session opaque requires adding the following internal-only functions:
* _PyXI_NewSession()
* _PyXI_FreeSession()
* _PyXI_GetMainNamespace()
(cherry picked from commit 4a4ac3ab4d, gh-134452)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
gh-134370: Added clarification on instance annotations (GH-134387)
Instances of classes cannot have annotations,
however sometimes they will erroneously have the
__annotations__ attribute
(cherry picked from commit bd4046f4f8)
Co-authored-by: Alex Kautz <alex@takemobi.com>
Add notes on nogil & reinitialization to the Opt-Out section in Module Isolation HOWTO (GH-134141)
(cherry picked from commit 1f0a294e8c)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Sam Gross <colesbury@gmail.com>
