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* Python 3.11.0a1v3.11.0a1Pablo Galindo2021-10-051-2/+2
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* bpo-43760: Check for tracing using 'bitwise or' instead of branch in ↵Mark Shannon2021-10-051-0/+1
| | | | dispatch. (GH-28723)
* bpo-41710: Add private _PyDeadline_Get() function (GH-28674)Victor Stinner2021-10-011-0/+16
| | | | | | | | Add a private C API for deadlines: add _PyDeadline_Init() and _PyDeadline_Get() functions. * Add _PyTime_Add() and _PyTime_Mul() functions which compute t1+t2 and t1*t2 and clamp the result on overflow. * _PyTime_MulDiv() now uses _PyTime_Add() and _PyTime_Mul().
* bpo-41710: Fix PY_TIMEOUT_MAX on Windows (GH-28673)Victor Stinner2021-10-011-5/+5
| | | | | | | | | | WaitForSingleObject() accepts timeout in milliseconds in the range [0; 0xFFFFFFFE] (DWORD type). INFINITE value (0xFFFFFFFF) means no timeout. 0xFFFFFFFE milliseconds is around 49.7 days. PY_TIMEOUT_MAX is (0xFFFFFFFE * 1000) milliseconds on Windows, around 49.7 days. Partially revert commit 37b8294d6295ca12553fd7c98778be71d24f4b24.
* bpo-41710: Document _PyTime_t API in pytime.h (GH-28647)Victor Stinner2021-09-301-0/+41
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* bpo-41710: PyThread_acquire_lock_timed() clamps the timout (GH-28643)Victor Stinner2021-09-302-3/+7
| | | | | | | | | | | | | | | | | | | PyThread_acquire_lock_timed() now clamps the timeout into the [_PyTime_MIN; _PyTime_MAX] range (_PyTime_t type) if it is too large, rather than calling Py_FatalError() which aborts the process. PyThread_acquire_lock_timed() no longer uses MICROSECONDS_TO_TIMESPEC() to compute sem_timedwait() argument, but _PyTime_GetSystemClock() and _PyTime_AsTimespec_truncate(). Fix _thread.TIMEOUT_MAX value on Windows: the maximum timeout is 0x7FFFFFFF milliseconds (around 24.9 days), not 0xFFFFFFFF milliseconds (around 49.7 days). Set PY_TIMEOUT_MAX to 0x7FFFFFFF milliseconds, rather than 0xFFFFFFFF milliseconds. Fix PY_TIMEOUT_MAX overflow test: replace (us >= PY_TIMEOUT_MAX) with (us > PY_TIMEOUT_MAX).
* bpo-41710: Add pytime_add() and pytime_mul() (GH-28642)Victor Stinner2021-09-301-3/+5
| | | | | | Add pytime_add() and pytime_mul() functions to pytime.c to compute t+t2 and t*k with clamping to [_PyTime_MIN; _PyTime_MAX]. Fix pytime.h: _PyTime_FromTimeval() is not implemented on Windows.
* bpo-41710: Add _PyTime_AsTimespec_clamp() (GH-28629)Victor Stinner2021-09-301-5/+11
| | | | | | | | | | | | | | | Add the _PyTime_AsTimespec_clamp() function: similar to _PyTime_AsTimespec(), but clamp to _PyTime_t min/max and don't raise an exception. PyThread_acquire_lock_timed() now uses _PyTime_AsTimespec_clamp() to remove the Py_UNREACHABLE() code path. * Add _PyTime_AsTime_t() function. * Add PY_TIME_T_MIN and PY_TIME_T_MAX constants. * Replace _PyTime_AsTimeval_noraise() with _PyTime_AsTimeval_clamp(). * Add pytime_divide_round_up() function. * Fix integer overflow in pytime_divide(). * Add pytime_divmod() function.
* bpo-45211: Remember the stdlib dir during startup. (gh-28586)Eric Snow2021-09-283-0/+3
| | | | | During runtime startup we figure out the stdlib dir but currently throw that information away. This change preserves it and exposes it via PyConfig.stdlib_dir, _Py_GetStdlibDir(), and sys._stdlib_dir. https://bugs.python.org/issue45211
* bpo-45211: Move helpers from getpath.c to internal API. (gh-28550)Eric Snow2021-09-272-0/+26
| | | | | | | | | | | | This accomplishes 2 things: * consolidates some common code between getpath.c and getpathp.c * makes the helpers available to code in other files FWIW, the signature of the join_relfile() function (in fileutils.c) intentionally mirrors that of Windows' PathCchCombineEx(). Note that this change is mostly moving code around. No behavior is meant to change. https://bugs.python.org/issue45211
* bpo-21302: time.sleep() uses waitable timer on Windows (GH-28483)Victor Stinner2021-09-221-0/+6
| | | | | | | | | | | | On Windows, time.sleep() now uses a waitable timer which has a resolution of 100 ns (10^-7 sec). Previously, it had a solution of 1 ms (10^-3 sec). * On Windows, time.sleep() now calls PyErr_CheckSignals() before resetting the SIGINT event. * Add _PyTime_As100Nanoseconds() function. * Complete and update time.sleep() documentation. Co-authored-by: Livius <egyszeregy@freemail.hu>
* [codemod] Fix non-matching bracket pairs (GH-28473)Mohamad Mansour2021-09-212-2/+2
| | | | | Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* bpo-45061: Detect refcount bug on empty tuple singleton (GH-28503)Victor Stinner2021-09-211-0/+6
| | | | | | Detect refcount bugs in C extensions when the empty tuple singleton is destroyed by mistake. Add the _Py_FatalRefcountErrorFunc() function.
* bpo-45116: Py_DEBUG ignores Py_ALWAYS_INLINE (GH-28419)Victor Stinner2021-09-171-1/+10
| | | | If the Py_DEBUG macro is defined, the Py_ALWAYS_INLINE macro does nothing.
* bpo-45116: Add the Py_ALWAYS_INLINE macro (GH-28390)Victor Stinner2021-09-171-0/+22
| | | | | Add the Py_ALWAYS_INLINE macro to ask the compiler to always inline a static inline function. The compiler can ignore it and decides to not inline the function.
* bpo-45219: Factor dictkey indexing (GH-28389)Mark Shannon2021-09-171-1/+3
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* bpo-21302: Add _PyTime_AsNanoseconds() (GH-28350)Victor Stinner2021-09-151-0/+3
| | | | | | | | | | | | | | | | | Refactor pytime.c: * Add pytime_from_nanoseconds() and pytime_as_nanoseconds(), and use explicitly these functions * Add two empty lines between functions * PEP 7: add braces { ... } * C99: declare variables where they are set * Rename private functions to lowercase * Rename error_time_t_overflow() to pytime_time_t_overflow() * Rename win_perf_counter_frequency() to py_win_perf_counter_frequency() * py_get_monotonic_clock(): add an assertion to detect overflow when mach_absolute_time() unsigned uint64_t is casted to _PyTime_t (signed int64_t). _testcapi: use _PyTime_FromNanoseconds().
* bpo-45020: Add -X frozen_modules=[on|off] to explicitly control use of ↵Eric Snow2021-09-143-0/+5
| | | | | | | frozen modules. (gh-28320) Currently we freeze several modules into the runtime. For each of these modules it is essential to bootstrapping the runtime that they be frozen. Any other stdlib module that we later freeze into the runtime is not essential. We can just as well import from the .py file. This PR lets users explicitly choose which should be used, with the new "-X frozen_modules=[on|off]" CLI flag. The default is "off" for now. https://bugs.python.org/issue45020
* bpo-45152: Add HAS_CONST macro and get_const_value() function and use… ↵Irit Katriel2021-09-141-0/+4
| | | | (#28262)
* bpo-39573: Py_TYPE becomes a static inline function (GH-28128)Victor Stinner2021-09-081-2/+8
| | | | | Convert the Py_TYPE() and Py_SIZE() macros to static inline functions. The Py_SET_TYPE() and Py_SET_SIZE() functions must now be used to set an object type and size.
* bpo-45123: PyAiter_Check and PyObject_GetAiter fix & rename. (GH-28194)Yury Selivanov2021-09-071-2/+2
| | | | | | | | Fix PyAiter_Check to only check for the `__anext__` presense (not for `__aiter__`). Rename `PyAiter_Check()` to `PyAIter_Check()`, `PyObject_GetAiter()` -> `PyObject_GetAIter()`. Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
* bpo-45094: Add Py_NO_INLINE macro (GH-28140)Victor Stinner2021-09-032-18/+14
| | | | | * Rename _Py_NO_INLINE macro to Py_NO_INLINE: make it public and document it. * Sort macros in the C API documentation.
* bpo-44945: Specialize BINARY_ADD (GH-27967)Mark Shannon2021-08-273-26/+34
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* bpo-44990: Change layout of evaluation frames. "Layout B" (GH-27933)Mark Shannon2021-08-251-7/+37
| | | Places the locals between the specials and stack. This is the more "natural" layout for a C struct, makes the code simpler and gives a slight speedup (~1%)
* bpo-44874: deprecate Py_TRASHCAN_SAFE_BEGIN and Py_TRASHCAN_SAFE_END (GH-27693)Irit Katriel2021-08-181-4/+13
| | | | Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Łukasz Langa <lukasz@langa.pl>
* bpo-44895: Introduce PYTHONDUMPREFSFILE variable for refcount dumping (GH-27767)Dong-hee Na2021-08-171-0/+1
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* bpo-44889: Specialize LOAD_METHOD with PEP 659 adaptive interpreter (GH-27722)Ken Jin2021-08-172-9/+20
| | | | | | | | Adds four new instructions: * LOAD_METHOD_ADAPTIVE * LOAD_METHOD_CACHED * LOAD_METHOD_MODULE * LOAD_METHOD_CLASS
* bpo-42035: Add PyType_GetQualName() to get a type's qualified name. (GH-27551)Hai Shi2021-08-171-0/+1
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* bpo-44900: Add five superinstructions. (GH-27741)Mark Shannon2021-08-161-0/+5
| | | | | | | | * LOAD_FAST LOAD_FAST * STORE_FAST LOAD_FAST * LOAD_FAST LOAD_CONST * LOAD_CONST LOAD_FAST * STORE_FAST STORE_FAST
* bpo-44890: Fix AMD build error (GH-27740)Irit Katriel2021-08-121-2/+7
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* bpo-44890: collect specialization stats if Py_DEBUG (GH-27731)Irit Katriel2021-08-121-5/+8
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* Classify specialization failures. Provides more useful stats, with lower ↵Mark Shannon2021-08-101-1/+3
| | | | overhead. (GH-27701)
* bpo-44826: Specialize STORE_ATTR (GH-27590)Mark Shannon2021-08-093-2/+10
| | | | | | | * Generalize cache names for LOAD_ATTR to allow store and delete specializations. * Factor out specialization of attribute dictionary access. * Specialize STORE_ATTR.
* bpo-44821: Eagerly assign __dict__ for new objects. (GH-27589)Mark Shannon2021-08-041-0/+2
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* Add option to write specialization stats to files and script to summarize. ↵Mark Shannon2021-08-041-0/+1
| | | | | | | (GH-27575) * Add option to write stats to random file in a directory. * Add script to summarize stats.
* Minor fixes to specialization stats. (GH-27457)Mark Shannon2021-07-291-0/+2
| | | | | * Use class, not value for fail stats for BINARY_SUBSCR. * Fix counts for unquickened instructions.
* bpo-44725 : expose specialization stats in python (GH-27192)Irit Katriel2021-07-291-0/+3
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* bpo-41103: Resurrect the old buffer protocol. (GH-27437)Inada Naoki2021-07-291-0/+47
| | | | | Revert "bpo-41103: Remove old buffer protocol support (#21117)" This reverts commit 6f8a6ee59cb7f99f68df8ee9c3e8c8cf19af3eed.
* bpo-42035: Add a PyType_GetName() to get type's short name. (GH-23903)Hai Shi2021-07-291-0/+3
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* closes bpo-44751: Move crypt.h include from public header to _cryptmodule ↵Geoffrey Thomas2021-07-271-13/+0
| | | | | (GH-27394) Automerge-Triggered-By: GH:benjaminp
* bpo-44590: Lazily allocate frame objects (GH-27077)Mark Shannon2021-07-267-67/+116
| | | | | | | | | | | | | | * Convert "specials" array to InterpreterFrame struct, adding f_lasti, f_state and other non-debug FrameObject fields to it. * Refactor, calls pushing the call to the interpreter upward toward _PyEval_Vector. * Compute f_back when on thread stack, only filling in value when frame object outlives stack invocation. * Move ownership of InterpreterFrame in generator from frame object to generator object. * Do not create frame objects for Python calls. * Do not create frame objects for generators.
* bpo-42747: Remove Py_TPFLAGS_HAVE_AM_SEND and make ↵Petr Viktorin2021-07-231-14/+12
| | | | | | | | | | | | Py_TPFLAGS_HAVE_VERSION_TAG no-op (GH-27260) * Remove code that checks Py_TPFLAGS_HAVE_VERSION_TAG The field is always present in the type struct, as explained in the added comment. * Remove Py_TPFLAGS_HAVE_AM_SEND The flag is not needed, and since it was added in 3.10 it can be removed now.
* bpo-44654: Do not export the union type related symbols (GH-27223)Serhiy Storchaka2021-07-181-4/+4
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* bpo-44654: Refactor and clean up the union type implementation (GH-27196)Serhiy Storchaka2021-07-172-8/+7
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* Remove legacy opcache structs (GH-27164)Ken Jin2021-07-162-25/+0
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* bpo-20201: variadic arguments support for AC (GH-18609)Batuhan Taskaya2021-07-161-1/+10
| | | Implement support for `*args` in AC, and port `print()` to use it.
* bpo-26280: Port BINARY_SUBSCR to PEP 659 adaptive interpreter (GH-27043)Irit Katriel2021-07-152-11/+16
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* bpo-44207: Add an internal version number to function objects. (GH-27078)Mark Shannon2021-07-121-0/+10
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* bpo-43950: Add option to opt-out of PEP-657 (GH-27023)Ammar Askar2021-07-071-0/+1
| | | | | Co-authored-by: Pablo Galindo <Pablogsal@gmail.com> Co-authored-by: Batuhan Taskaya <batuhanosmantaskaya@gmail.com> Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
* bpo-44530: Add co_qualname field to PyCodeObject (GH-26941)Gabriele N. Tornetta2021-07-072-4/+6
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