gh-151613: Fix remote debugging frame cache ABA (#151614)
The remote debugging frame cache previously used only the last_profiled_frame address as its cache anchor. If a frame returned and a later frame reused the same _PyInterpreterFrame address, the profiler could accept a stale cache entry and splice parent frames from a different call chain into the current stack.
This adds a last_profiled_frame_seq counter next to last_profiled_frame, increments it when the anchor advances, stores it in frame cache entries, and validates cache hits against both the frame address and the sequence. Cache miss walks now copy stack chunks before storing new cache entries so stored continuations come from a stable snapshot. The new regression test exercises alternating call chains and checks that cached stacks never contain frames from both branches.
(cherry picked from commit 8cda6ae2f1)
gh-152434: Block --async-aware with --binary (GH-152444)
The binary writer does not currently handle AwaitedInfo samples and
crashes when running in --async-aware mode.
(cherry picked from commit 876c06cab9)
Co-authored-by: László Kiss Kollár <kiss.kollar.laszlo@gmail.com>
gh-151029: Fix sys.remote_exec() unable to find writable memory when libpython replaced on disk (GH-151032)
(cherry picked from commit a69d0fc41e)
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
Note in the Bindings and events section that every widget inherits Tk
class bindings for its standard behavior, where they are documented, and
how to suppress an unwanted one by returning "break" from a callback.
(cherry picked from commit 4fd69ef97a)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Document Windows cursor files (gh-99089).
(cherry picked from commit ea7f64a65c)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Textbox.edit() ignored typing in the lower-right cell of the window. It is
now written with insch(), which fills the cell without moving the cursor out
of the window (addch() there raises an error and scrolls a scrollable window).
(cherry picked from commit 11b394381f)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Cover the drag cursor, the Motion and ButtonRelease bindings, switching
between targets, the target search up the master chain, dnd_accept()
returning None, and restarting after a drag has finished.
(cherry picked from commit 389e00f13f)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Map the auto-generated name of a cloned menu (a menu used as a menubar
or a cascade) back to the original widget instead of raising KeyError.
(cherry picked from commit 5c3555bdc5)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
focus_get(), focus_displayof(), focus_lastfor() and winfo_containing()
now return None instead of raising KeyError when the focused widget was
not created by tkinter (for example a torn-off menu).
(cherry picked from commit 5fed5ce85d)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
IDLE: fix dedent() usage in htest (GH-152256)
Fix typos: in GH-112642, initial string concatenation quotes were left when switching to textwrap.dedent().
(cherry picked from commit 74272d4f0b)
Co-authored-by: Inada Naoki <songofacandy@gmail.com>
gh-98894: Skip test_dtrace when building without dtrace (GH-152239)
(cherry picked from commit 671357691f)
Co-authored-by: stratakis <cstratak@redhat.com>
A command created with createcommand() held a strong reference to the
interpreter, forming an uncollectable cycle (interpreter -> command ->
interpreter) that kept the interpreter and the callback alive until the
command was removed with deletecommand() or destroy(). The command now
borrows the reference; it cannot outlive the interpreter, which deletes its
commands when finalized.
(cherry picked from commit bbf7786a90)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
When a Tcl command running its own event loop (such as vwait or
wait_variable) was active and the user typed input on stdin, the event
loop kept spinning at 100% CPU. The stdin file handler is now removed as
soon as input becomes available.
Also fix gh-139816: an exception raised in a callback no longer stops the
event loop to wait for Enter on a Python built without readline; pending
callbacks keep running until input is actually available on stdin.
(cherry picked from commit 3ffda34f5c)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: mdehoon <mjldehoon@yahoo.com>
Co-authored-by: Christopher Chavez <chrischavez@gmx.us>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
gh-121249: Soft deprecate F and D struct format types (#149346)
Remove F/D type codes from table in the struct module documentation.
(cherry picked from commit 5f17434a1e)
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
gh-152235: Defer GC tracking in more set operations (gh-152273)
(cherry picked from commit a87d24a69d)
Co-authored-by: Donghee Na <donghee.na@python.org>
gh-151722: Defer GC tracking in frozendict.copy() (GH-152230)
Fix _PyDict_Or() and frozendict.copy(): only track the frozendict by
the GC once the dictionary is fully initialized.
Functions modifying frozendict now ensures that the object is not
tracked by the GC (in debug mode).
* can_modify_dict() checks that _PyObject_GC_IS_TRACKED() is false
for frozendicts.
* dict_merge_api() makes sure that the dictionary is tracked by the
GC.
(cherry picked from commit 05679f3576)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-152156: Fix a crash in `interpeters.create` under limited memory conditions (GH-152163)
(cherry picked from commit 3ad66bf10d)
Co-authored-by: sobolevn <mail@sobolevn.me>
gh-152235: Defer GC tracking of set and frozenset to end of construction (gh-152237)
(cherry picked from commit 908f438e19)
Co-authored-by: Donghee Na <donghee.na@python.org>
gh-151722: Do not track the frozendict in the GC in _PyDict_FromKeys() (GH-152067)
_PyDict_FromKeys() now creates a frozendict copy which is
not tracked by the GC.
dict_merge() no longer requires the dictionary to be tracked by the
GC.
(cherry picked from commit 55bc3126e0)
Co-authored-by: Victor Stinner <vstinner@python.org>
Co-authored-by: Donghee Na <donghee.na@python.org>
Co-authored-by: Inada Naoki <songofacandy@gmail.com>
gh-151929: Add pythoninfo commands to Platforms/WASI (GH-152136)
The "build" command now also runs "pythoninfo-build" and
"pythoninfo-host" commands.
If no subcommand is provided, display the help.
GitHub Action "WASI":
* Add "pythoninfo-build" and "pythoninfo-host" commands.
* Remove unused and outdated CROSS_BUILD_PYTHON environment variable.
(cherry picked from commit 7c8163719c)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-151929: Add pythoninfo-build command to Platforms/emscripten (GH-152210)
* Add also "pythoninfo-host" command.
* Add pythoninfo to the "build" command.
(cherry picked from commit 7676427cd8)
Co-authored-by: Victor Stinner <vstinner@python.org>
gh-148825: Fix build error if specialization is disabled (GH-148826)
(cherry picked from commit 56ae0b8e4f)
Co-authored-by: Marc Mueller <30130371+cdce8p@users.noreply.github.com>
(cherry picked from commit 11c241e1a8)
Co-authored-by: Shahar Naveh <50263213+ShaharNaveh@users.noreply.github.com>
Co-authored-by: Stan Ulbrych <stan@python.org>
gh-151929: Get uptime on BSD/macOS in pythoninfo (GH-152189)
* Check sysctlbyname() function and sys/sysctl.h header in
configure.
* Add _testcapi.uptime_bsd() function.
(cherry picked from commit b6d89edc4a)
Co-authored-by: Victor Stinner <vstinner@python.org>
The tkinter.Variable methods trace_variable(), trace(), trace_vdelete()
and trace_vinfo(), deprecated since Python 3.14, are now scheduled for
removal in Python 3.17.
(cherry picked from commit deeae2ac07)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
gh-151929: Get machine ID and uptime on Windows in pythoninfo (#152146)
* Replace "linux." prefix with "system." in pythoninfo.
* Add _winapi.GetTickCount64() function.
(cherry picked from commit f9910519af)
Decorate ttk.MenubuttonTest with add_configure_tests() and make
ttk.OptionMenuTest inherit it to cover the standard widget options.
(cherry picked from commit ce147129c1)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
gh-151929: Get boot ID, machine ID and uptime in test.pythoninfo (GH-152127)
(cherry picked from commit 3db3bba4d1)
GHA: Run test.pythoninfo on the "Cross build Linux" job.
Co-authored-by: Victor Stinner <vstinner@python.org>
Add short group intros before each cluster of Misc methods.
Group the Tk and Toplevel classes in a new "Toplevel widgets" section, move
the Tcl() function to the module-level functions, and move the "File
handlers" section into the reference.
(cherry picked from commit c7faa6936e)
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
