gh-109981: Fix support.fd_count() on macOS 14 (GH-112797)
Use scanning "/dev/fd/" on macOS in support.fd_count(). That's both more efficient than scanning all possible file descriptors, and avoids crashing the interpreter when there are open "guarded" file descriptors.
"Guarded" file descriptors are a macOS feature where file descriptors used by system libraries are marked and cause hard crashes when used by "user" code.
(cherry picked from commit 953ee622b3)
Co-authored-by: Ronald Oussoren <ronaldoussoren@mac.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
Set MAX_STRUCT_SIZE to 32 in stgdict.c when on Arm platforms.
This because on Arm platforms structs with at most 4 elements of any
floating point type values can be passed through registers. If the type
is double the maximum size of the struct is 32 bytes.
On x86-64 Linux, it's maximum 16 bytes hence we need to differentiate.
(cherry picked from commit bc68f4a4ab)
Previously, "widget.unbind(sequence, funcid)" destroyed the current binding
for "sequence", leaving "sequence" unbound, and deleted the "funcid"
command.
Now it removes only "funcid" from the binding for "sequence", keeping
other commands, and deletes the "funcid" command.
It leaves "sequence" unbound only if "funcid" was the last bound command.
(cherry picked from commit cc7e45cc57)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: GiovanniL <13402461+GiovaLomba@users.noreply.github.com>
gh-111178: Docs: fix `traverseproc`, `inquiry`, and `destructor` parameters in slot typedefs table (GH-112742)
In the slot typedefs table, the parameter of `destructor`
and the first parameter of `traverseproc` should both be
`PyObject *` rather than `void *`.
Same for `inquiry`.
(cherry picked from commit 00cce0fe49)
Co-authored-by: Christopher Chavez <chrischavez@gmx.us>
gh-101100: Fix most Sphinx nitpicks in the glossary and `stdtypes.rst` (GH-112757)
(cherry picked from commit e3f670e137)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
* Ignore os.close() errors when ignore_errors is True.
* Pass os.close() errors to the error handler if specified.
* os.close no longer retried after error.
(cherry picked from commit 11d88a178b)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
(cherry picked from commit 8cdfee1bb9)
Co-authored-by: Ken Jin <kenjin@python.org>
Co-authored-by: andrei kulakov <andrei.avk@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-101100: Fix many easily solvable Sphinx nitpicks in the datamodel docs (GH-112737)
(cherry picked from commit 2f20cafdbf)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Standardize PyUnicode C API parameter names across the documentation.
(cherry picked from commit b31232ddf7)
Co-authored-by: Rune Tynan <runetynan@gmail.com>
Restore `subprocess`'s intended use of `vfork()` by default for performance on Linux;
also fixes the behavior of `extra_groups=[]` which was unintentionally broken in 3.12.0:
Fixed a performance regression in 3.12's :mod:`subprocess` on Linux where it
would no longer use the fast-path ``vfork()`` system call when it could have
due to a logic bug, instead falling back to the safe but slower ``fork()``.
Also fixed a security bug introduced in 3.12.0. If a value of ``extra_groups=[]``
was passed to :mod:`subprocess.Popen` or related APIs, the underlying
``setgroups(0, NULL)`` system call to clear the groups list would not be made
in the child process prior to ``exec()``.
The security issue was identified via code inspection in the process of
fixing the first bug. Thanks to @vain for the detailed report and
analysis in the initial bug on Github.
(cherry picked from commit 9fe7655c6c)
+ Reword NEWS for the bugfix/security release. (mentions the assigned CVE number)
Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-105967: Work around a macOS bug, limit zlib C library crc32 API calls to 1gig (GH-112615)
Work around a macOS bug, limit zlib crc32 calls to 1GiB.
Without this, `zlib.crc32` and `binascii.crc32` could produce incorrect
results on multi-gigabyte inputs depending on the macOS version's Apple
supplied zlib implementation.
(cherry picked from commit 4eddb4c9d9)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
It breaks import machinery if the test module has submodules used in
other tests.
(cherry picked from commit e08b70fab1)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-106550: Fix sign conversion in pycore_code.h (GH-112613)
Fix sign conversion in pycore_code.h: use unsigned integers and cast
explicitly when needed.
(cherry picked from commit a74902a14c)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-101100: Fix most Sphinx nitpicks in `inspect.rst` (GH-112662)
(cherry picked from commit 45650d1c47)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Examine and update spec -- callable pairs.
Revise run method.
(cherry picked from commit 3855b45874)
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Use author link to 'The Perils of Floating Point'.
(cherry picked from commit c27b09c813)
Co-authored-by: Marco Aurélio A. Barbosa <aureliobarbosa@gmail.com>
gh-106560: Fix redundant declarations in Python/frozen.c (#112612)
Avoid duplicated declarations of "extern" functions in
Python/frozen.c.
Compiler warnings seen by building Python with gcc -Wredundant-decls.
(cherry picked from commit d9e444dbb8)
gh-106560: Fix redundant declarations in Include/ (#112611)
Don't declare PyBool_Type and PyLong_Type twice, but only once.
Compiler warnings seen by building Python with gcc -Wredundant-decls.
