GH-136874: `url2pathname()`: discard query and fragment components (GH-136875)
In `urllib.request.url2pathname()`, ignore any query or fragment components
in the given URL.
(cherry picked from commit 80b2d60a51)
Co-authored-by: Barney Gale <barney.gale@gmail.com>
Pedantic rewording of why relative importing doesn't work in main modules (GH-136846)
Pedantically reword the section about relative imports and main modules.
(cherry picked from commit 4b68289ca6)
Co-authored-by: Josh Cannon <joshdcannon@gmail.com>
gh-136428: amend UUIDv8 performance improvements (GH-136903)
UUIDv8 has been added in Python 3.14.0a2 and its construction time
has been improved in Python 3.14.0a4, but since those changes will
not be visible when comparing the latest Python 3.13 and 3.14 together,
we do not document them on the What's New page to avoid confusion.
(cherry picked from commit 5798348a07)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
GH-130645: Default to color help in argparse (GH-136809)
(cherry picked from commit acbe896cb1)
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Adam Turner <9087854+aa-turner@users.noreply.github.com>
gh-86608: Improve and restructure tarfile examples (GH-121771)
Add an example on how to write a tarfile to stdout; general improvements.
(cherry picked from commit cc81b4e501)
Co-authored-by: Dominic H <dom@dominic.sk>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
Extend the documentation for disabling pymalloc with the `--without-pymalloc` flag regarding why it is worth to use it when enabling AddressSanitizer for Python build (which is done, e.g., in CPython's CI builds).
I have tested the CPython latest main build with both ASan and pymalloc enabled and it seems to work just fine. I did run the `python -m test` suite which didn't uncover any ASan crashes (though, it detected some memory leaks, which I believe are irrelevant here).
I have discussed ASan and this flag with @encukou on the CPython Core sprint on EuroPython 2025. We initially thought that the `--without-pymalloc` flag is needed for ASan builds due to the fact pymalloc must hit the begining of page when determining if the memory to be freed comes from pymalloc or was allocated by the system malloc. In other words, we thought, that ASan would crash CPython during free of big objects (allocated by system malloc). It may be that this was the case in the past, but it is not the case anymore as the `address_in_range` function used by pymalloc is annotated to be skipped from the ASan instrumentation.
(cherry picked from commit d19bb44713)
Co-authored-by: Disconnect3d <dominik.b.czarnota@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-54732: Make argparse error caused by empty rows in option files explicit (GH-136795)
(cherry picked from commit 8ffc3ef01e)
Co-authored-by: jdunter <2ve@mailbox.org>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
gh-135730: Clarify multiprocessing.Queue close() documentation (GH-136803)
Add a copy of the text from SimpleQueue.close()
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(cherry picked from commit f575588ccf)
Co-authored-by: aggshruti99 <aggshruti99@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
gh-136769: Include fixed-width integers in the fundamental data types table (GH-136784)
Fixed-sized types, like ``c_int32``, are currently missing from the fundamental data types table
in the ``ctypes`` documentation. This commit adds them, and notes that ``c_[u]int8`` is an alias
of ``c_[u]byte``.
(cherry picked from commit acefb978dc)
Co-authored-by: Sina Zel taat <111974143+SZeltaat@users.noreply.github.com>
gh-74598: document that `fnmatch.filterfalse` is affected by cache limitation (GH-136781)
(cherry picked from commit 263e451c41)
Co-authored-by: Gergely Elias <gergely.elias@gmail.com>
Docs: Improve example for ``itertools.batched()`` (GH-136775)
The current example `batched('ABCDEFG', n=3) → ABC DEF G` can confuse readers because both, the size of the tuples and the number of tuples are 3.
By using a batch size of n=2, it is clearer that the `n` argument refers to the size of the resulting tuples.
I.e. the new example is: `batched('ABCDEFG', n=2) → AB CD EF G`
(cherry picked from commit 3eecc72ac7)
Co-authored-by: RafaelWO <38643099+RafaelWO@users.noreply.github.com>
gh-136697: Use the standard audit event format for sys.monitoring docs (GH-136747)
(cherry picked from commit 28937d3a21)
Co-authored-by: Tian Gao <gaogaotiantian@hotmail.com>
It was "doctest.module attribute". Now it is "module attribute".
(cherry picked from commit 7689407fa4)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-72570: mention the incompatibility of XOFs with HMAC (GH-136676)
(cherry picked from commit a02cf19dee)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
gh-136663: fix signatures of PyFloat_Pack/Unpack in docs (GH-136664)
(cherry picked from commit e4654e0b3e)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
gh-116738: Make grp module thread-safe (GH-135434)
Make grp module methods getgrgid() and getgrnam() thread-safe when the GIL is disabled and getgrgid_r()/getgrnam_r() C APIs are not available.
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(cherry picked from commit 9363703bd3)
Co-authored-by: Alper <alperyoney@fb.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
gh-42237: Link to complete list of codec aliases (GH-136625)
Closes GH-42237
(cherry picked from commit a93d9aaf62)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
gh-132346: Docs: Clarify that reference counts aren't stable between versions (GH-132352)
(cherry picked from commit 3dbe02ccd3)
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
gh-134833: improve docs for `del s[i:j]` in `Mutable Sequence Types` (GH-134834)
(cherry picked from commit 609d5adc7c)
Co-authored-by: Yongzi Li <204532581+Yzi-Li@users.noreply.github.com>
Docs: Fix and improve the `PyUnstable_Object_EnableDeferredRefcount` documentation (GH-135323)
(cherry picked from commit 0d4fd10fba)
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
Add index entries and anchors for cache_info, cache_clear and register.
(cherry picked from commit 252e2f710e)
Co-authored-by: Weilin Du <108666168+LamentXU123@users.noreply.github.com>
gh-76637: Note that `undefined` Codec is for testing (GH-136531)
Closes GH-76637
(cherry picked from commit 975b57d945)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
gh-102740: Clarify time.monotonic() "system-wide" in the doc (GH-136431)
(cherry picked from commit 9c4d287775)
Co-authored-by: Victor Stinner <vstinner@python.org>
(cherry picked from commit 92f392ad9e)
Co-authored-by: Zachary Ware <zach@python.org>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Éric <merwok@netwok.org>
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>
