[3.13] gh-128049: Fix type confusion bug with the return value of a custom ExceptionGroup split function (GH-128079) (#128139)
gh-128049: Fix type confusion bug with the return value of a custom ExceptionGroup split function (GH-128079)
(cherry picked from commit 3879ca0100942ae15a09ac22889cbe3e46d424eb)
[3.13] gh-128030: Avoid error from PyModule_GetFilenameObject for non-module (GH-128047) (#128114)
gh-128030: Avoid error from PyModule_GetFilenameObject for non-module (GH-128047)
I missed the extra `PyModule_Check` in GH-127660 because I was looking at
3.12 as the base implementation for import from. This meant that I
missed the `PyModuleCheck` introduced in GH-112661.
(cherry picked from commit 45e6dd63b88a782f2ec96ab1da54eb5a074d8f4c)
[3.13] gh-128062: Fix the font size and shortcut display of the turtledemo menu (GH-128063) (#128101)
gh-128062: Fix the font size and shortcut display of the turtledemo menu (GH-128063)
Leave the font of the menu bar the default to keep it consistent with the rest of the world. Display the shortcut keys in the right way, using the 'accelerator' option.
---------
Co-authored-by: Zhikang Yan <2951256653@qq.com> Co-authored-by: Peter Bierma <zintensitydev@gmail.com> Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
[3.13] gh-126742: Add _PyErr_SetLocaleString, use it for gdbm & dlerror messages (GH-126746) (GH-128023)
- Add a helper to set an error from locale-encoded `char*`
- Use the helper for gdbm & dlerror messages
(cherry picked from commit 7303f06846b69016a075bca7ad7c6055f29ad024)
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com> Co-authored-by: Victor Stinner <vstinner@python.org>
[3.13] gh-127845: Minor improvements to iOS test runner script (GH-127846) (#127892)
Uses symlinks to install iOS framework into testbed clone, adds a verbose mode
to the iOS runner to hide most Xcode output, adds another mechanism to disable
terminal colors, and ensures that stdout is flushed after every write.
(cherry picked from commit ba2d2fda93a03a91ac6cdff319fd23ef51848d51)
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
Petr Viktorin [Thu, 12 Dec 2024 12:02:57 +0000 (13:02 +0100)]
[3.13] gh-126937: ctypes: add test for maximum size of a struct field (GH-126938) (GH-127825)
This backports the *test* from GH-126938, with changed limit and exception class.
Co-authored-by: Melissa0x1f992 <70096546+Melissa0x1f992@users.noreply.github.com> Co-authored-by: Peter Bierma <zintensitydev@gmail.com> Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
[3.13] gh-127257: ssl: Raise OSError for ERR_LIB_SYS (GH-127361) (GH-127812)
gh-127257: ssl: Raise OSError for ERR_LIB_SYS (GH-127361)
From the ERR_raise manpage:
ERR_LIB_SYS
This "library code" indicates that a system error is
being reported. In this case, the reason code given
to `ERR_raise()` and `ERR_raise_data()` *must* be
`errno(3)`.
This PR only handles ERR_LIB_SYS for the high-lever error types
SSL_ERROR_SYSCALL and SSL_ERROR_SSL, i.e., not the ones where
OpenSSL indicates it has some more information about the issue.
(cherry picked from commit f4b31edf2d9d72878dab1f66a36913b5bcc848ec)
[3.13] Add `extern "C"` around `PyTraceMalloc_` functions. (GH-127772) (#127815)
Add `extern "C"` around `PyTraceMalloc_` functions. (GH-127772)
Pretty much everything else exported by Python.h has an extern "C"
annotation, yet this header appears to be missing one.
(cherry picked from commit 2cdeb61b57e638ae46a04386330a12abe9cddf2c)
Co-authored-by: Peter Hawkins <hawkinsp@cs.stanford.edu>
Shantanu [Tue, 10 Dec 2024 05:21:55 +0000 (21:21 -0800)]
[3.13] gh-127651: Use __file__ in diagnostics if origin is missing (#127660) (#127775)
gh-127651: Use __file__ in diagnostics if origin is missing (#127660)
See the left hand side in https://github.com/python/cpython/pull/123929/files#diff-c22186367cbe20233e843261998dc027ae5f1f8c0d2e778abfa454ae74cc59deL2840-L2849
[3.13] gh-126925: Modify how iOS test results are gathered (GH-127592) (#127754)
Adds a `use_system_log` config item to enable stdout/stderr redirection for
Apple platforms. This log streaming is then used by a new iOS test runner
script, allowing the display of test suite output at runtime. The iOS test
runner script can be used by any Python project, not just the CPython test
suite.
(cherry picked from commit 2041a95e68ebf6d13f867e214ada28affa830669)
[3.13] Give `poplib.POP3.rpop` a proper docstring (GH-127370) (#127721)
Give `poplib.POP3.rpop` a proper docstring (GH-127370)
Previously `poplib.POP3.rpop` had a "Not sure what this does" docstring, now it has been fixed.
(cherry picked from commit 27d0d2141319d82709eb09ba20065df3e1714fab)
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
[3.13] gh-127552: Remove comment questioning 4-digit restriction for ‘Y’ in datetime.strptime patterns (GH-127590) GH-127650)
gh-127552: Remove comment questioning 4-digit restriction for ‘Y’ in datetime.strptime patterns (GH-127590)
The code has required 4 digits for the year since its inclusion in the stdlib in 2002 (over 22 years ago as of this commit).
(cherry picked from commit 51cfa569e379f84b3418db0971a71b1ef575a42b)
The `STORE_ATTR_INSTANCE_VALUE` opcode doesn't support objects with
non-NULL managed dictionaries, so don't specialize to that op in that case.
(cherry picked from commit a353455fca1b8f468ff3ffbb4b5e316510b4fd43)
[3.13] gh-127655: Ensure `_SelectorSocketTransport.writelines` pauses the protocol if needed (GH-127656) (#127663)
gh-127655: Ensure `_SelectorSocketTransport.writelines` pauses the protocol if needed (GH-127656)
Ensure `_SelectorSocketTransport.writelines` pauses the protocol if it reaches the high water mark as needed.
(cherry picked from commit e991ac8f2037d78140e417cc9a9486223eb3e786)
Co-authored-by: J. Nick Koston <nick@koston.org> Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Sam Gross [Thu, 5 Dec 2024 23:49:33 +0000 (23:49 +0000)]
[3.13] gh-127582: Make object resurrection thread-safe for free threading. (GH-127612) (GH-127659)
Objects may be temporarily "resurrected" in destructors when calling
finalizers or watcher callbacks. We previously undid the resurrection
by decrementing the reference count using `Py_SET_REFCNT`. This was not
thread-safe because other threads might be accessing the object
(modifying its reference count) if it was exposed by the finalizer,
watcher callback, or temporarily accessed by a racy dictionary or list
access.
This adds internal-only thread-safe functions for temporary object
resurrection during destructors.
(cherry picked from commit f4f530804b9d8f089eba0f157ec2144c03b13651)
[3.13] gh-127421: Fix race in test_start_new_thread_failed (GH-127549) (#127574)
gh-127421: Fix race in test_start_new_thread_failed (GH-127549)
Fix race in test_start_new_thread_failed
When we succeed in starting a new thread, for example if setrlimit
was ineffective, we must wait for the newly spawned thread to exit.
Otherwise, we run the risk that the newly spawned thread will race
with runtime finalization and access memory that has already been
clobbered/freed.
`_thread.start_new_thread()` only spawns daemon threads, which the runtime
does not wait for at shutdown, and does not return a handle. Use
`_thread.start_joinable_thread()` and join the resulting handle when
the thread is started successfully.
(cherry picked from commit 13b68e1a61e92a032d255aff5d5af435bbb63e8b)
[3.13] gh-122907: Fix Builds Without HAVE_DYNAMIC_LOADING Set (gh-122952) (#122984)
gh-122907: Fix Builds Without HAVE_DYNAMIC_LOADING Set (gh-122952)
As of 529a160 (gh-118204), building with HAVE_DYNAMIC_LOADING stopped working. This is a minimal fix just to get builds working again. There are actually a number of long-standing deficiencies with HAVE_DYNAMIC_LOADING builds that need to be resolved separately.
(cherry picked from commit ee1b8ce26e700350e47a5f65201097121c41912e)
Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
[3.13] gh-127521: Mark list as "shared" before resizing if necessary (GH-127524) (GH-127533)
In the free threading build, if a non-owning thread resizes a list,
it must use QSBR to free the old list array because there may be a
concurrent access (without a lock) from the owning thread.
To match the pattern in dictobject.c, we just mark the list as "shared"
before resizing if it's from a non-owning thread and not already marked
as shared.
(cherry picked from commit c7dec02de2ed4baf3cd22ad094350265b52c18af)
Eric Snow [Mon, 2 Dec 2024 18:41:57 +0000 (11:41 -0700)]
[3.13] gh-126914: Store the Preallocated Thread State's Pointer in a PyInterpreterState Field (gh-127114)
This approach eliminates the originally reported race. It also gets rid of the deadlock reported in gh-96071, so we can remove the workaround added then.
This is mostly a cherry-pick of 1c0a104 (AKA gh-126989). The difference is we add PyInterpreterState.threads_preallocated at the end of PyInterpreterState, instead of adding PyInterpreterState.threads.preallocated. That avoids ABI disruption.
[3.13] gh-113841: fix possible undefined division by 0 in _Py_c_pow() (GH-127211) (#127216)
Note, that transformed expression is not an equivalent for original one (1/exp(-x) != exp(x) in general for floating-point numbers). Though, the difference seems to be ~1ULP for good libm implementations.
It's more interesting why division was used from beginning. Closest algorithm I've found (no error checks, of course;)) - it's Algorithm 190 from ACM: https://dl.acm.org/doi/10.1145/366663.366679. It uses subtraction in the exponent.
[3.13] gh-99880: document rounding mode for new-style formatting (GH-121481) (#126334)
The CPython uses _Py_dg_dtoa(), which does rounding to nearest with half
to even tie-breaking rule.
If that functions is unavailable, PyOS_double_to_string() fallbacks to
system snprintf(). Since CPython 3.12, build requirements include C11
compiler *and* support for IEEE 754 floating point numbers (Annex F).
This means that FE_TONEAREST macro is available and, per default,
printf-like functions should use same rounding mode as _Py_dg_dtoa().
Don't make the assumption that the 'name' argument is a string. Use
repr() to format the 'name' argument instead.
(cherry picked from commit 20657fbdb14d50ca4ec115da0cbef155871d8d33)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.13] gh-124008: Fix calculation of the number of written bytes for the Windows console (GH-124059) (GH-127325)
Since MultiByteToWideChar()/WideCharToMultiByte() is not reversible if
the data contains invalid UTF-8 sequences, use binary search to
calculate the number of written bytes from the number of written
characters.
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