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) โ 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) โ 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>
Clears the umask used during a test of pydoc.apropos when testing on
Emscripten. This is to work around a known issue in Emscripten; but it's not
clear if the chmod call that is causing the problem is actually testing
anything of significance.
(cherry picked from commit 22af5d35a6)
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
This might have been fixed by gh-136624, or by some Emscripten change.
In any case, it no longer seems to be needed.
(cherry picked from commit dcd27aace1)
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
Provide a stub implementation of umask that is enough to get some tests passing.
More work is needed upstream in Emscripten to make all umask tests to pass.
(cherry picked from commit 12e52cad71)
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
Makes the Emscripten stack overflow skip message consistent with WASI,
and replaces some ad-hoc skips.
(cherry picked from commit c730952aa6)
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
Corrects the handling of getuid on emscripten, which was consistently reporting as 0.
(cherry picked from commit e81c4e84b3)
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
It was "doctest.module attribute". Now it is "module attribute".
(cherry picked from commit 7689407fa4)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Previously, we assumed that instrumentation would happen for all copies of
the bytecode if the instrumentation version on the code object didn't match
the per-interpreter instrumentation version. That assumption was incorrect:
instrumentation will exit early if there are no new "events," even if there
is an instrumentation version mismatch.
To fix this, include the instrumented opcodes when creating new copies of
the bytecode, rather than replacing them with their uninstrumented variants.
I don't think we have to worry about races between instrumentation and creating
new copies of the bytecode: instrumentation and new bytecode creation cannot happen
concurrently. Instrumentation requires that either the world is stopped or the
code object's per-object lock is held and new bytecode creation requires holding
the code object's per-object lock.
(cherry picked from commit d995922198)
Co-authored-by: mpage <mpage@meta.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
gh-72570: mention the incompatibility of XOFs with HMAC (GH-136676)
(cherry picked from commit a02cf19dee)
Co-authored-by: Bรฉnรฉdikt Tran <10796600+picnixz@users.noreply.github.com>
Fix "msvcrt" import warning on Linux when "_ctypes" is not available.
On Linux, compiling without "libffi" causes a
"No module named 'msvcrt'" warning when launching PyREPL.
(cherry picked from commit f320c951c3)
Co-authored-by: Dzmitry Plashchynski <plashchynski@gmail.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>
Removes the JS text decoder fallback and gets rid of the bugs due to the differences
in behavior on invalid utf8 strings. See https://github.com/emscripten-core/emscripten/issues/24690.
(cherry picked from commit 283b050523)
Co-authored-by: Hood Chatham <roberthoodchatham@gmail.com>
gh-127971: fix off-by-one read beyond the end of a string during search (GH-132574)
(cherry picked from commit 85ec3b3b50)
Co-authored-by: Duane Griffin <duaneg@dghda.com>
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>
