gh-91048: Revert the memory cache removal for remote debugging (GH-136440)
(cherry picked from commit 77d25e5b16)
gh-91048: Reintroduce the memory cache for remote debugging
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
The free threading build uses QSBR to delay the freeing of dictionary
keys and list arrays when the objects are accessed by multiple threads
in order to allow concurrent reads to proceed with holding the object
lock. The requests are processed in batches to reduce execution
overhead, but for large memory blocks this can lead to excess memory
usage.
Take into account the size of the memory block when deciding when to
process QSBR requests.
Also track the amount of memory being held by QSBR for mimalloc pages. Advance the write sequence if this memory exceeds a limit. Advancing the sequence will allow it to be freed more quickly.
Process the held QSBR items from the "eval breaker", rather than from `_PyMem_FreeDelayed()`. This gives a higher chance that the global read sequence has advanced enough so that items can be freed.
(cherry picked from commit 113de8545f)
Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>
Co-authored-by: Sam Gross <colesbury@gmail.com>
gh-102567: Add missing newline to `--help-all` (GH-136391)
(cherry picked from commit fbef0c1d6a)
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
gh-135913: Document ob_refcnt, ob_type, ob_size (GH-135914)
* gh-135913: Document ob_refcnt, ob_type, ob_size
In `typeobj.rst`, instead of `:c:member:` it would be better to
use `.. c:member::` with a `:no-index:` option, see:
See ref. https://www.sphinx-doc.org/en/master/usage/domains/index.html#basic-markup
However, `c:member` currently does not support `:no-index:`.
(cherry picked from commit 73e1207a4e)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-136032: Fix `argparse.BooleanOptionalAction` doc (GH-136133)
(cherry picked from commit 1953713d0d)
Co-authored-by: W. H. Wang <mattwang44@gmail.com>
gh-135906: Use `_PyObject_CAST` in internal headers (GH-135892)
Fixes build errors encountered in python-greenlet/greenlet#450 when building greenlet on the free-threaded build.
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(cherry picked from commit fe187fae8d)
Co-authored-by: Charlie Lin <tuug@gmx.us>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-86682: Add versionadded for sys._getframemodulename (GH-136325)
add versionadded for sys._getframemodulename
(cherry picked from commit 11f074b243)
Co-authored-by: Anthony Sottile <asottile@umich.edu>
* Turn the __future__ table to list-table.
This'll make it easier to add entries that need longer markup
* Semantic markup for __future__ feature descriptions.
* Document CO_* C macros.
(cherry picked from commit 2468aafe98)
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-127502: Remove XML vulnerability table (GH-135294)
* Remove the table
* Replace warnings with notes
Latest releases of Python 3.9-3.15 include expat 2.7.1 which is not vulnerable.
expat 2.6.0 was released in February 2024.
(cherry picked from commit cb99d99277)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-109070: Document that get_context in multiprocessing have side effect (GH-136341)
Document that get_context in multiprocessing have side effect
(cherry picked from commit 77a8bd29da)
Co-authored-by: AN Long <aisk@users.noreply.github.com>
gh-129824: fix data races in subinterpreters under TSAN (GH-135794)
This fixes the data races in typeobject.c in subinterpreters under free-threading. The type flags and slots are only modified in the main interpreter as all static types are first initialised in main interpreter.
(cherry picked from commit b582d751b4)
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
gh-136315: Fix skipped multithreading test in test_zstd (GH-136320)
Fix skipped test in test_zstd
(cherry picked from commit 5dac137b9f)
Co-authored-by: Emma Smith <emma@emmatyping.dev>
gh-136297: Test all `pickle` protocols in `test_zoneinfo_property.py` (GH-136298)
(cherry picked from commit 5de7e3f973)
Co-authored-by: sobolevn <mail@sobolevn.me>
gh-136288: Fix error message in `_testcapi/vectorcall.c` (GH-136258)
Use the %N format specifier instead of %s and `PyType_GetName`.
(cherry picked from commit d1d5dce14f)
Co-authored-by: William S Fulton <wsf@fultondesigns.co.uk>
gh-135773: have pyvenv.cfg without home key anchor a venv and deduce home (GH-135831)
This is still formally undefined behaviour, but we may as well
keep the *same* undefined behaviour as previous versions.
PEP 796 proposes a cleaner and more consistent replacement for 3.15+
(cherry picked from commit 93263d4314)
Co-authored-by: Richard Levasseur <rlevasseur@google.com>
* Whitespaces no longer accepted between `</` and the tag name.
E.g. `</ script>` does not end the script section.
* Vertical tabulation (`\v`) and non-ASCII whitespaces no longer recognized
as whitespaces. The only whitespaces are `\t\n\r\f `.
* Null character (U+0000) no longer ends the tag name.
* Attributes and slashes after the tag name in end tags are now ignored,
instead of terminating after the first `>` in quoted attribute value.
E.g. `</script/foo=">"/>`.
* Multiple slashes and whitespaces between the last attribute and closing `>`
are now ignored in both start and end tags. E.g. `<a foo=bar/ //>`.
* Multiple `=` between attribute name and value are no longer collapsed.
E.g. `<a foo==bar>` produces attribute "foo" with value "=bar".
* Whitespaces between the `=` separator and attribute name or value are no
longer ignored. E.g. `<a foo =bar>` produces two attributes "foo" and
"=bar", both with value None; `<a foo= bar>` produces two attributes:
"foo" with value "" and "bar" with value None.
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(cherry picked from commit 0243f97cba)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Ezio Melotti <ezio.melotti@gmail.com>
gh-135252: Document Zstandard integration across zipfile, shutil, and tarfile (GH-135311)
Document Zstandard integration across zipfile, shutil, and tarfile
(cherry picked from commit 938a5d7e62)
Co-authored-by: Emma Smith <emma@emmatyping.dev>
