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* gh-106320: Remove private _PyDict C API (#107145)Victor Stinner2023-07-241-0/+1
| | | | | | | | | | | | | Move private _PyDict functions to the internal C API (pycore_dict.h): * _PyDict_Contains_KnownHash() * _PyDict_DebugMallocStats() * _PyDict_DelItemIf() * _PyDict_GetItemWithError() * _PyDict_HasOnlyStringKeys() * _PyDict_MaybeUntrack() * _PyDict_MergeEx() No longer export these functions.
* gh-106320: Remove private _PyObject C API (#107147)Victor Stinner2023-07-231-1/+1
| | | | | | | | | | | | | | | | Move private debug _PyObject functions to the internal C API (pycore_object.h): * _PyDebugAllocatorStats() * _PyObject_CheckConsistency() * _PyObject_DebugTypeStats() * _PyObject_IsFreed() No longer export most of these functions, except of _PyObject_IsFreed(). Move test functions using _PyObject_IsFreed() from _testcapi to _testinternalcapi. check_pyobject_is_freed() test no longer catch _testcapi.error: the tested function cannot raise _testcapi.error.
* gh-106521: Remove _PyObject_LookupAttr() function (GH-106642)Serhiy Storchaka2023-07-121-2/+2
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* gh-106320: Create pycore_modsupport.h header file (#106355)Victor Stinner2023-07-031-0/+1
| | | | | | | | | | Remove the following functions from the C API, move them to the internal C API: add a new pycore_modsupport.h internal header file: * PyModule_CreateInitialized() * _PyArg_NoKwnames() * _Py_VaBuildStack() No longer export these functions.
* gh-106023: Remove _PyObject_FastCallTstate() function (#106273)Victor Stinner2023-06-301-7/+5
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* gh-106182: sys: Intern getfilesystemencoding() and ↵Inada Naoki2023-06-301-5/+25
| | | | | getfilesystemencodeerrors() (#106183) sys: Intern getfilesystemencoding() and getfilesystemencodeerrors()
* fix typos (#106247)Inada Naoki2023-06-301-1/+1
| | | Most typos are in comments, but two typos are in docstring.
* gh-106023: Update code using _PyObject_FastCall() (#106257)Victor Stinner2023-06-301-1/+1
| | | Replace _PyObject_FastCall() calls with PyObject_Vectorcall().
* gh-106118: Add O_CLOEXEC preprocessor guard (#106120)Erlend E. Aasland2023-06-281-1/+4
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* gh-106084: Remove old PyObject call aliases (#106085)Victor Stinner2023-06-261-1/+1
| | | | | | | | | | | | | | Remove old aliases which were kept backwards compatibility with Python 3.8: * _PyObject_CallMethodNoArgs() * _PyObject_CallMethodOneArg() * _PyObject_CallOneArg() * _PyObject_FastCallDict() * _PyObject_Vectorcall() * _PyObject_VectorcallMethod() * _PyVectorcall_Function() Update code which used these aliases to use new names.
* gh-105673: Fix uninitialized warning in sysmodule.c (#105674)Nikita Sobolev2023-06-121-1/+1
| | | In sys_add_xoption(), 'value' may be uninitialized for some error paths.
* gh-105375: Improve error handling in the sys extension module (#105611)Erlend E. Aasland2023-06-111-6/+18
| | | | | In _PySys_AddXOptionWithError() and sys_add_xoption(), bail on first error to prevent exceptions from possibly being overwritten.
* gh-100227: Lock Around Adding Global Audit Hooks (gh-105515)Eric Snow2023-06-081-17/+39
| | | The risk of a race with this state is relatively low, but we play it safe anyway.
* gh-105145: Remove old functions to config Python init (#105154)Victor Stinner2023-06-011-7/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the following old functions to configure the Python initialization, deprecated in Python 3.11: * PySys_AddWarnOptionUnicode() * PySys_AddWarnOption() * PySys_AddXOption() * PySys_HasWarnOptions() * PySys_SetArgvEx() * PySys_SetArgv() * PySys_SetPath() * Py_SetPath() * Py_SetProgramName() * Py_SetPythonHome() * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Most of these functions are kept in the stable ABI, except: * Py_SetStandardStreamEncoding() * _Py_SetProgramFullPath() Update Doc/extending/embedding.rst and Doc/extending/extending.rst to use the new PyConfig API. _testembed.c: * check_stdio_details() now sets stdio_encoding and stdio_errors of PyConfig. * Add definitions of functions removed from the API but kept in the stable ABI. * test_init_from_config() and test_init_read_set() now use PyConfig_SetString() instead of PyConfig_SetBytesString(). Remove _Py_ClearStandardStreamEncoding() internal function.
* gh-104922: Make `PY_SSIZE_T_CLEAN` not mandatory again (#105051)Inada Naoki2023-05-311-1/+1
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* gh-103295: expose API for writing perf map files (#103546)gsallam2023-05-211-1/+79
| | | | | Co-authored-by: Aniket Panse <aniketpanse@fb.com> Co-authored-by: Gregory P. Smith <greg@krypto.org> Co-authored-by: Carl Meyer <carl@oddbird.net>
* GH-102818: Do not call `PyTraceBack_Here` in sys.settrace trampoline. ↵Mark Shannon2023-05-191-4/+0
| | | | (GH-104579)
* gh-104341: Adjust tstate_must_exit() to Respect Interpreter Finalization ↵Eric Snow2023-05-151-0/+4
| | | | | (gh-104437) With the move to a per-interpreter GIL, this check slipped through the cracks.
* gh-103323: Remove PyRuntimeState_GetThreadState() (#104171)Victor Stinner2023-05-041-1/+1
| | | | | This function no longer makes sense, since its runtime parameter is no longer used. Use directly _PyThreadState_GET() and _PyInterpreterState_GET() instead.
* gh-94673: Properly Initialize and Finalize Static Builtin Types for Each ↵Eric Snow2023-05-021-12/+16
| | | | | Interpreter (gh-104072) Until now, we haven't been initializing nor finalizing the per-interpreter state properly.
* gh-84436: Immortalize in _PyStructSequence_InitBuiltinWithFlags() (gh-104054)Eric Snow2023-05-011-5/+5
| | | This also does some cleanup.
* gh-94673: Ensure Builtin Static Types are Readied Properly (gh-103940)Eric Snow2023-04-271-14/+8
| | | There were cases where we do unnecessary work for builtin static types. This also simplifies some work necessary for a per-interpreter GIL.
* gh-101659: Isolate "obmalloc" State to Each Interpreter (gh-101660)Eric Snow2023-04-241-1/+3
| | | | | | | | | | | | | | This is strictly about moving the "obmalloc" runtime state from `_PyRuntimeState` to `PyInterpreterState`. Doing so improves isolation between interpreters, specifically most of the memory (incl. objects) allocated for each interpreter's use. This is important for a per-interpreter GIL, but such isolation is valuable even without it. FWIW, a per-interpreter obmalloc is the proverbial canary-in-the-coalmine when it comes to the isolation of objects between interpreters. Any object that leaks (unintentionally) to another interpreter is highly likely to cause a crash (on debug builds at least). That's a useful thing to know, relative to interpreter isolation.
* gh-84436: Implement Immortal Objects (gh-19474)Eddie Elizondo2023-04-221-0/+13
| | | | | | | | | This is the implementation of PEP683 Motivation: The PR introduces the ability to immortalize instances in CPython which bypasses reference counting. Tagging objects as immortal allows up to skip certain operations when we know that the object will be around for the entire execution of the runtime. Note that this by itself will bring a performance regression to the runtime due to the extra reference count checks. However, this brings the ability of having truly immutable objects that are useful in other contexts such as immutable data sharing between sub-interpreters.
* GH-103082: Implementation of PEP 669: Low Impact Monitoring for CPython ↵Mark Shannon2023-04-121-0/+11
| | | | | | | | | | (GH-103083) * The majority of the monitoring code is in instrumentation.c * The new instrumentation bytecodes are in bytecodes.c * legacy_tracing.c adapts the new API to the old sys.setrace and sys.setprofile APIs
* gh-103167: Fix `-Wstrict-prototypes` warnings by using `(void)` for ↵Nikita Sobolev2023-04-051-1/+1
| | | | functions with no args (GH-103168)
* gh-102304: Move the Total Refcount to PyInterpreterState (gh-102545)Eric Snow2023-03-211-0/+2
| | | | | Moving it valuable with a per-interpreter GIL. However, it is also useful without one, since it allows us to identify refleaks within a single interpreter or where references are escaping an interpreter. This becomes more important as we move the obmalloc state to PyInterpreterState. https://github.com/python/cpython/issues/102304
* gh-102304: Move _Py_RefTotal to _PyRuntimeState (gh-102543)Eric Snow2023-03-201-1/+1
| | | | | | | The essentially eliminates the global variable, with the associated benefits. This is also a precursor to isolating this bit of state to PyInterpreterState. Folks that currently read _Py_RefTotal directly would have to start using _Py_GetGlobalRefTotal() instead. https://github.com/python/cpython/issues/102304
* gh-102778: Add sys.last_exc, deprecate sys.last_type, ↵Irit Katriel2023-03-181-2/+4
| | | | sys.last_value,sys.last_traceback (#102779)
* gh-102755: Add PyErr_DisplayException(exc) (#102756)Irit Katriel2023-03-161-1/+1
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* gh-102660: Fix Refleaks in import.c (#102744)Eric Snow2023-03-161-3/+0
| | | | | gh-102661 introduced some leaks. This fixes them. https://github.com/python/cpython/issues/102660
* gh-102660: Handle m_copy Specially for the sys and builtins Modules (gh-102661)Eric Snow2023-03-141-0/+8
| | | | | | | It doesn't make sense to use multi-phase init for these modules. Using a per-interpreter "m_copy" (instead of PyModuleDef.m_base.m_copy) makes this work okay. (This came up while working on gh-101660.) Note that we might instead end up disallowing re-load for sys/builtins since they are so special. https://github.com/python/cpython/issues/102660
* gh-102255: Improve build support for Windows API partitions (GH-102256)Max Bachmann2023-03-091-0/+4
| | | | | Add `MS_WINDOWS_DESKTOP`, `MS_WINDOWS_APPS`, `MS_WINDOWS_SYSTEM` and `MS_WINDOWS_GAMES` preprocessor definitions to allow switching off functionality missing from particular API partitions ("partitions" are used in Windows to identify overlapping subsets of APIs). CPython only officially supports `MS_WINDOWS_DESKTOP` and `MS_WINDOWS_SYSTEM` (APPS is included by normal desktop builds, but APPS without DESKTOP is not covered). Other configurations are a convenience for people building their own runtimes. `MS_WINDOWS_GAMES` is for the Xbox subset of the Windows API, which is also available on client OS, but is restricted compared to `MS_WINDOWS_DESKTOP`. These restrictions may change over time, as they relate to the build headers rather than the OS support, and so we assume that Xbox builds will use the latest available version of the GDK.
* gh-102192: Replace PyErr_Fetch/Restore etc by more efficient alternatives ↵Irit Katriel2023-02-281-15/+11
| | | | (in Python/) (#102193)
* gh-101758: Clean Up Uses of Import State (gh-101919)Eric Snow2023-02-151-19/+21
| | | | | | | | | | | | | | | This change is almost entirely moving code around and hiding import state behind internal API. We introduce no changes to behavior, nor to non-internal API. (Since there was already going to be a lot of churn, I took this as an opportunity to re-organize import.c into topically-grouped sections of code.) The motivation is to simplify a number of upcoming changes. Specific changes: * move existing import-related code to import.c, wherever possible * add internal API for interacting with import state (both global and per-interpreter) * use only API outside of import.c (to limit churn there when changing the location, etc.) * consolidate the import-related state of PyInterpreterState into a single struct field (this changes layout slightly) * add macros for import state in import.c (to simplify changing the location) * group code in import.c into sections *remove _PyState_AddModule() https://github.com/python/cpython/issues/101758
* GH-101578: Normalize the current exception (GH-101607)Mark Shannon2023-02-081-6/+4
| | | | | | | | | | * Make sure that the current exception is always normalized. * Remove redundant type and traceback fields for the current exception. * Add new API functions: PyErr_GetRaisedException, PyErr_SetRaisedException * Add new API functions: PyException_GetArgs, PyException_SetArgs
* gh-86682: Adds sys._getframemodulename as an alternative to using _getframe ↵Steve Dower2023-01-131-0/+38
| | | | | (GH-99520) Also updates calls in collections, doctest, enum, and typing modules to use _getframemodulename first when available.
* GH-100126: Skip incomplete frames in more places (GH-100613)Brandt Bucher2023-01-091-4/+1
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* Correct CVE-2020-10735 documentation (#100306)Jeremy Paige2022-12-181-2/+2
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* gh-96715 Remove redundant NULL check in `profile_trampoline` function (#96716)chgnrdv2022-12-121-4/+0
| | | Closes #96715
* gh-99537: Use Py_SETREF() function in C code (#99657)Victor Stinner2022-11-221-2/+1
| | | | | | | | | | | | | | | Fix potential race condition in code patterns: * Replace "Py_DECREF(var); var = new;" with "Py_SETREF(var, new);" * Replace "Py_XDECREF(var); var = new;" with "Py_XSETREF(var, new);" * Replace "Py_CLEAR(var); var = new;" with "Py_XSETREF(var, new);" Other changes: * Replace "old = var; var = new; Py_DECREF(var)" with "Py_SETREF(var, new);" * Replace "old = var; var = new; Py_XDECREF(var)" with "Py_XSETREF(var, new);" * And remove the "old" variable.
* gh-87604: Avoid publishing list of active per-interpreter audit hooks via ↵Steve Dower2022-11-141-0/+2
| | | | the gc module (GH-99373)
* gh-81057: Move PyImport_Inittab to _PyRuntimeState (gh-99402)Eric Snow2022-11-121-2/+3
| | | | | We actually don't move PyImport_Inittab. Instead, we make a copy that we keep on _PyRuntimeState and use only that after Py_Initialize(). We also prevent folks from modifying PyImport_Inittab (the best we can) after that point. https://github.com/python/cpython/issues/81057
* gh-99300: Use Py_NewRef() in Python/ directory (#99317)Victor Stinner2022-11-101-21/+10
| | | | | | Replace Py_INCREF() and Py_XINCREF() with Py_NewRef() and Py_XNewRef() in C files of the Python/ directory. Update Parser/asdl_c.py to regenerate Python/Python-ast.c.
* GH-98686: Quicken everything (GH-98687)Brandt Bucher2022-11-021-13/+0
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* gh-96143: Improve perf profiler docs (#96445)Erlend E. Aasland2022-10-271-6/+8
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* gh-98417: Store int_max_str_digits on the Interpreter State (GH-98418)Eric Snow2022-10-191-2/+2
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* GH-91079: Decouple C stack overflow checks from Python recursion checks. ↵Mark Shannon2022-10-051-1/+1
| | | | (GH-96510)
* gh-97670: Remove sys.getdxp() and analyze_dxp.py script (#97671)Victor Stinner2022-10-041-8/+0
| | | | | | | Remove the sys.getdxp() function and the Tools/scripts/analyze_dxp.py script. DXP stands for "dynamic execution pairs". They were related to DYNAMIC_EXECUTION_PROFILE and DXPAIRS macros which have been removed in Python 3.11. Python can now be built with "./configure --enable-pystats" to gather statistics on Python opcodes.
* gh-96512: Move int_max_str_digits setting to PyConfig (#96944)Gregory P. Smith2022-10-031-3/+3
| | | | | | | | | | | It had to live as a global outside of PyConfig for stable ABI reasons in the pre-3.12 backports. This removes the `_Py_global_config_int_max_str_digits` and gets rid of the equivalent field in the internal `struct _is PyInterpreterState` as code can just use the existing nested config struct within that. Adds tests to verify unique settings and configs in subinterpreters.
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