Miss Islington (bot)
a7cfe862ba
[3.14] gh-131927: Do not emit PEP 765 warnings in ast.parse() (GH-139642) (GH-140786)
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ast.parse() no longer emits syntax warnings for
return/break/continue in finally (see PEP-765) -- they are only
emitted during compilation.
(cherry picked from commit ad0a3f733b
2025-10-30 11:25:34 +00:00
Mikhail Efimov
2e21672803
[3.14] gh-140104: Set next_instr properly in the JIT during exceptions (GH-140233) (GH-140687)
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Co-authored-by: Ken Jin <kenjin@python.org>
Co-authored-by: devdanzin <74280297+devdanzin@users.noreply.github.com>
Co-authored-by: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
2025-10-27 23:49:10 +00:00
Miss Islington (bot)
c1bfd4cb9c
[3.14] gh-140358: Bring back elapsed time and unreachable count to gc debug output (GH-140359) ( #140405 )
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Co-authored-by: Pål Grønås Drange <paal.drange+pgdr@gmail.com>
2025-10-27 15:29:43 +02:00
Miss Islington (bot)
11b5e0b9c2
[3.14] gh-140517: fix leak in map_next in strict mode (GH-140543) ( #140554 )
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gh-140517: fix leak in `map_next` in strict mode (GH-140543)
(cherry picked from commit be5af997f3
2025-10-24 22:00:36 +05:30
Miss Islington (bot)
8285bc7ea2
[3.14] gh-140471: Fix buffer overflow in AST node initialization with malformed _fields (GH-140506) ( #140509 )
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gh-140471: Fix buffer overflow in AST node initialization with malformed `_fields` (GH-140506)
(cherry picked from commit 95953b692d
2025-10-23 10:20:21 -07:00
Mark Shannon
d1a434f7b2
[3.14] GH-139951: Fix major GC performance regression. Backport of GH-140262 (GH-140447)
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* Count number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead
* Do not track most untrackable tuples during creation. This prevents large numbers of small tuples causing execessive GCs.
2025-10-23 15:26:58 +01:00
Miss Islington (bot)
d7fe4e99a2
[3.14] gh-140301: Fix memory leak in subinterpreter PyConfig cleanup (GH-140303) ( #140360 )
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gh-140301: Fix memory leak in subinterpreter `PyConfig` cleanup (GH-140303)
(cherry picked from commit a615fb49c9
2025-10-20 09:54:41 +00:00
Miss Islington (bot)
6cee144d3a
[3.14] gh-140306: Fix memory leaks in cross-interpreter data handling (GH-140307) (GH-140338)
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(cherry picked from commit f9323213c9
2025-10-19 19:53:36 +00:00
Kumar Aditya
1d11627ba5
[3.14] gh-140067: Fix memory leak in sub-interpreter creation (GH-140111) ( #140118 )
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* [3.14] gh-140067: Fix memory leak in sub-interpreter creation (GH-140111)
Fix memory leak in sub-interpreter creation caused by overwriting of the previously used `_malloced` field. Now the pointer is stored in the first word of the memory block to avoid it being overwritten accidentally.
(cherry picked from commit 59547a251f
2025-10-18 19:40:43 +05:30
Miss Islington (bot)
3ca7ea1f8f
[3.14] gh-140257: fix data race on eval_breaker during finalization (GH-140265) ( #140294 )
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gh-140257: fix data race on eval_breaker during finalization (GH-140265)
(cherry picked from commit c8729c9909
2025-10-18 11:28:53 +00:00
Miss Islington (bot)
045e34964a
[3.14] gh-140061: Use _PyObject_IsUniquelyReferenced() to check if objects are uniquely referenced (gh-140062) (gh-140157)
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The previous `Py_REFCNT(x) == 1` checks can have data races in the free
threaded build. `_PyObject_IsUniquelyReferenced(x)` is a more conservative
check that is safe in the free threaded build and is identical to
`Py_REFCNT(x) == 1` in the default GIL-enabled build.
(cherry picked from commit 32c264982e
2025-10-15 14:49:17 +00:00
Miss Islington (bot)
af28efd8b4
[3.14] gh-139640: Fix swallowing syntax warnings in different modules (GH-139755) (GH-140117)
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Revert GH-131993.
Fix swallowing some syntax warnings in different modules if they accidentally
have the same message and are emitted from the same line.
Fix duplicated warnings in the "finally" block.
(cherry picked from commit 279db6bede
2025-10-14 15:56:01 +00:00
Kumar Aditya
90cd009209
[3.14] gh-139748: fix leaks in AC error paths when using unicode FS-b… ( #139789 )
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* [3.14] gh-139748: fix leaks in AC error paths when using unicode FS-based converters (GH-139765)
(cherry picked from commit b04a57deef
2025-10-08 22:16:21 +05:30
Dino Viehland
81dc8b12f0
[3.14] gh-139525: Don't specialize functions which have a modified vectorcall (GH-139524) ( #139709 )
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Don't specialize functions which have a modified vectorcall
2025-10-08 09:13:34 -07:00
Serhiy Storchaka
9ec4e3838a
[3.14] gh-138264: Fix gcc 14 compiler warnings (GH-138265) (GH-138426)
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(cherry picked from commit 4a33077fdb
2025-10-07 22:26:05 +02:00
Miss Islington (bot)
ac147be05f
[3.14] gh-137440: Update comment in Python/hamt.c on importing for testing (GH-137441) ( #137519 )
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gh-137440: Update comment in Python/hamt.c on importing for testing (GH-137441)
Switch from `_testcapi` to `_testinternalcapi`.
(cherry picked from commit 7ab68cd506
2025-10-07 20:47:26 +02:00
Miss Islington (bot)
e09f33e5bf
[3.14] gh-137433: Fix deadlock with stop-the-world and daemon threads (gh-137735) (GH-138965)
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There was a deadlock originally seen by Memray when a daemon thread
enabled or disabled profiling while the interpreter was shutting down.
I think this could also happen with garbage collection, but I haven't
seen that in practice.
The daemon thread could be hung while trying acquire the global rwmutex
that prevents overlapping global and per-interpreter stop-the-world events.
Since it already held the main interpreter's stop-the-world lock, it
also deadlocked the main thread, which is trying to perform interpreter
finalization.
Swap the order of lock acquisition to prevent this deadlock.
Additionally, refactor `_PyParkingLot_Park` so that the global buckets
hashtable is left in a clean state if the thread is hung in
`PyEval_AcquireThread`.
(cherry picked from commit 90fe3250f8
2025-10-07 20:46:52 +02:00
Miss Islington (bot)
29cffb1c02
[3.14] fix comment reference from man 7 signal to man 7 signal-safety (GH-138554) ( #138594 )
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fix comment reference from man 7 signal to man 7 signal-safety (GH-138554)
(cherry picked from commit 2f5ace780b
2025-10-07 19:34:15 +01:00
Miss Islington (bot)
75de39ba1b
[3.14] gh-137185: Fix _Py_DumpStack() async signal safety (gh-137187) (gh-137206)
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Call backtrace() once when installing the signal handler to ensure that
libgcc is dynamically loaded outside the signal handler.
This fixes a "signal-unsafe call inside of a signal" TSan error from
test_faulthandler.test_enable_fd.
(cherry picked from commit 11a8652e25
2025-10-07 18:11:46 +00:00
Miss Islington (bot)
bfcd5f25a5
[3.14] gh-138661: fix data race in PyCode_Addr2Line (GH-138664) ( #138834 )
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gh-138661: fix data race in `PyCode_Addr2Line` (GH-138664)
(cherry picked from commit ea26f6da39
2025-10-07 18:06:45 +00:00
Sam Gross
fb699effbf
[3.14] gh-137400: Fix thread-safety issues when profiling all threads (gh-137518) (gh-137730)
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There were a few thread-safety issues when profiling or tracing all
threads via PyEval_SetProfileAllThreads or PyEval_SetTraceAllThreads:
* The loop over thread states could crash if a thread exits concurrently
(in both the free threading and default build)
* The modification of `c_profilefunc` and `c_tracefunc` wasn't
thread-safe on the free threading build.
(cherry picked from commit a10152f8fd
2025-10-07 13:45:23 -04:00
Miss Islington (bot)
57c8e3eb8e
[3.14] gh-58124: Avoid CP_UTF8 in UnicodeDecodeError (GH-137415) ( #137460 )
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gh-58124: Avoid CP_UTF8 in UnicodeDecodeError (GH-137415)
Fix name of the Python encoding in Unicode errors of the code page
codec: use "cp65000" and "cp65001" instead of "CP_UTF7" and "CP_UTF8"
which are not valid Python code names.
(cherry picked from commit ce1b747ff6
2025-10-07 19:39:31 +02:00
Sam Gross
85dabb9c15
[3.14] gh-137238: Fix data race in _Py_slot_tp_getattr_hook (gh-137240) ( #137416 )
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Replacing the slot isn't thread-safe if the GIL is disabled. Don't
require that the slot has been replaced when specializing.
(cherry picked from commit 485b16b4f7
2025-10-07 17:36:56 +00:00
Miss Islington (bot)
cec4ddf23e
[3.14] gh-128639: Don't assume one thread in subinterpreter finalization with fixed daemon thread support (GH-134606) (GH-139050)
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gh-128639: Don't assume one thread in subinterpreter finalization with fixed daemon thread support (GH-134606)
This reapplies GH-128640.
(cherry picked from commit a64881363b
2025-10-07 13:30:38 -04:00
Miss Islington (bot)
08bea299bf
[3.14] gh-112729: Correctly fail when the process is out of memory during interpreter creation (GH-139164) (GH-139168)
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gh-112729: Correctly fail when the process is out of memory during interpreter creation (GH-139164)
(cherry picked from commit d06113c7a7
2025-10-07 13:30:23 -04:00
Miss Islington (bot)
9e091dbf02
[3.14] gh-138756: Fix leak of inittab memory in PyInitConfig_Free() (GH-138792) ( #139703 )
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gh-138756: Fix leak of inittab memory in PyInitConfig_Free() (GH-138792)
(cherry picked from commit 3d521a62e7
2025-10-07 17:11:20 +00:00
Miss Islington (bot)
0accda7468
[3.14] gh-138756: Fix memory leak in PyInitConfig_Free() (GH-138759) ( #138785 )
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gh-138756: Fix memory leak in PyInitConfig_Free() (GH-138759)
Clear also memory of PyConfig members.
(cherry picked from commit 96dee64c73
2025-10-07 18:42:50 +02:00
Miss Islington (bot)
0e4e608f03
[3.14] gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (GH-137470) ( #139039 )
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gh-128627: Use __builtin_wasm_test_function_pointer_signature for Emscripten trampoline (GH-137470)
With https://github.com/llvm/llvm-project/pull/150201 being merged, there is
now a better way to generate the Emscripten trampoline, instead of including
hand-generated binary WASM content. Requires Emscripten 4.0.12.
(cherry picked from commit 2629ee4eb0
2025-09-17 17:21:01 +01:00
Victor Stinner
3643a26a01
[3.14] gh-138349: Fix crash when combining module-level annotation and listcomp ( #138363 ) ( #138749 )
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* gh-138349: Fix crash when combining module-level annotation and listcomp (#138363 )
(cherry picked from commit 7a6fd4a45d
2025-09-11 08:43:57 +03:00
Miss Islington (bot)
0cf8ac2973
[3.14] gh-137668: Document that ord() supports also bytes and bytearray (GH-137669) ( #137703 )
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Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2025-09-08 17:59:10 +03:00
Miss Islington (bot)
cddb7e6a7a
[3.14] gh-138192: Fix Context initialization so that all subinterpreters are assigned the MISSING value. (gh-138503) ( #138505 )
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Co-authored-by: Donghee Na <donghee.na@python.org>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
2025-09-05 15:30:04 +03:00
Miss Islington (bot)
192ae9b86d
[3.14] gh-138372: Fix SyntaxWarning for erroneous t-string subscription (GH-138375) ( #138392 )
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gh-138372: Fix SyntaxWarning for erroneous t-string subscription (GH-138375)
(cherry picked from commit 5493b46462
2025-09-02 17:39:08 +00:00
Miss Islington (bot)
6d30edbae2
[3.14] gh-137576: Fix for Basic REPL showing incorrect code in tracebacks with PYTHONSTARTUP (GH-137625) ( #137771 )
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Co-authored-by: adam j hartz <hz@mit.edu>
Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
2025-08-27 18:28:20 +03:00
Peter Bierma
8b3f9ae2ca
[3.14] gh-137883: Check the recursion limit for specialized keyword argument calls (GH-137887) ( #137945 )
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Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
2025-08-25 19:19:39 +03:00
Kumar Aditya
d619015ecd
[3.14] gh-137384: fix crash when accessing warnings state late in runtime shutdown (GH-138027) ( #138065 )
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2025-08-22 17:27:49 +03:00
Miss Islington (bot)
cf5c170c1b
[3.14] gh-137728 gh-137762: Fix bugs in the JIT with many local variables (GH-137764) ( #137999 )
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Co-authored-by: Ken Jin <kenjin@python.org>
2025-08-21 17:00:05 +03:00
Miss Islington (bot)
7c0e6378c1
[3.14] GH-137573: mark _PyOptimizer_Optimize as no inline (GH-137731) ( #137751 )
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Co-authored-by: Sachin Shah <39803835+inventshah@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
2025-08-14 11:51:33 +03:00
Ned Deily
2392232ec4
[3.14] GH-134291: Support older macOS deployment targets for JIT builds (GH-137211) ( #137701 )
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Co-authored-by: Brandt Bucher <brandtbucher@microsoft.com>
2025-08-13 13:37:01 +03:00
Miss Islington (bot)
4ebd928b00
[3.14] gh-137400: Fix a crash when disabling profiling across all threads (gh-137471) ( #137648 )
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Tests / (push) Blocked by required conditions
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Co-authored-by: Sam Gross <colesbury@gmail.com>
2025-08-12 17:29:57 +03:00
Miss Islington (bot)
4dda1768be
[3.14] gh-135228: When @dataclass(slots=True) replaces a dataclass, make the original class collectible (take 2) (GH-137047) ( #137666 )
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Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
2025-08-12 17:17:26 +03:00
Irit Katriel
0ccf244a19
[3.14] gh-137288: Fix bug where boolean expressions are not associated with the correct exception handler (GH-137310). ( #137427 )
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Co-authored-by: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
2025-08-12 12:56:37 +03:00
Miss Islington (bot)
1878fe814a
[3.14] gh-131338: Disable computed stack limit checks on non-glibc linux (GH-134336) ( #137175 )
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Co-authored-by: R. David Murray <rdmurray@bitdance.com>
Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Co-authored-by: Victor Stinner <vstinner@python.org>
2025-08-10 16:55:29 +03:00
Miss Islington (bot)
f17d77f112
[3.14] gh-137308: Replace a single docstring with pass in -OO mode (GH-137318) ( #137322 )
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Co-authored-by: sobolevn <mail@sobolevn.me>
2025-08-08 18:04:10 +03:00
Miss Islington (bot)
909a534cb2
[3.14] gh-136870: fix data races in instrumentation of bytecode (GH-136994) ( #137082 )
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Co-authored-by: Kumar Aditya <kumaraditya@python.org>
Co-authored-by: Zachary Ware <zach@python.org>
2025-07-28 22:39:44 +03:00
Serhiy Storchaka
805daa2edb
[3.14] Revert "gh-112068: C API: Add support of nullable arguments in PyArg_Parse (GH-121303)" (GH-136991) ( #137006 )
2025-07-22 19:16:31 +03:00
Łukasz Langa
591019e1f2
[3.14] gh-124621: Emscripten: Support pyrepl in browser (GH-136931) (GH-136988)
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Basic support for pyrepl in Emscripten. Limitations:
* requires JSPI
* no signal handling implemented
As followup work, it would be nice to implement a webworker variant
for when JSPI is not available and proper signal handling.
Because it requires JSPI, it doesn't work in Safari. Firefox requires
setting an experimental flag. All the Chromiums have full support since
May. Until we make it work without JSPI, let's keep the original web_example
around.
(cherry picked from commit c933a6bb32
2025-07-22 15:04:11 +02:00
Miss Islington (bot)
4f1f648c3b
[3.14] gh-136251: Improvements to WASM demo REPL (GH-136252) (GH-136977)
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(cherry picked from commit d1d526afe7
2025-07-22 13:25:35 +02:00
Miss Islington (bot)
d118bc061b
[3.14] gh-124621: Emscripten: Add support for async input devices (GH-136822) (GH-136935)
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This is useful for implementing proper `input()`. It requires the
JavaScript engine to support the wasm JSPI spec which is now stage 4.
It is supported on Chrome since version 137 and on Firefox and node
behind a flag.
We override the `__wasi_fd_read()` syscall with our own variant that
checks for a readAsync operation. If it has it, we use our own async
variant of `fd_read()`, otherwise we use the original `fd_read()`.
We also add a variant of `FS.createDevice()` called
`FS.createAsyncInputDevice()`.
Finally, if JSPI is available, we wrap the `main()` symbol with
`WebAssembly.promising()` so that we can stack switch from `fd_read()`.
If JSPI is not available, attempting to read from an AsyncInputDevice
will raise an `OSError`.
(cherry picked from commit 7ae4749d06
2025-07-22 11:51:02 +02:00
Hugo van Kemenade
8e43b130f7
[3.14] gh-134009: Expose PyMutex_IsLocked in the public C API (gh-134365) ( #136971 )
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Co-authored-by: Sam Gross <colesbury@gmail.com>
2025-07-22 12:48:08 +03:00
Miss Islington (bot)
11f510167c
[3.14] gh-133296: Publicly expose critical section API that accepts PyMutex (gh-135899) ( #136969 )
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Co-authored-by: Nathan Goldbaum <nathan.goldbaum@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
2025-07-22 12:44:59 +03:00
