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* gh-77757: replace exception wrapping by PEP-678 notes in typeobject's ↵Irit Katriel2023-04-111-0/+2
| | | | __set_name__ (#103402)
* GH-101578: Normalize the current exception (GH-101607)Mark Shannon2023-02-081-1/+10
| | | | | | | | | | * 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-90667: Add specializations of Py_DECREF when types are known (GH-30872)Dennis Sweeney2022-04-191-7/+0
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* bpo-46417: Finalize structseq types at exit (GH-30645)Victor Stinner2022-01-211-0/+1
| | | | | | | | | | | | | | | | | | Add _PyStructSequence_FiniType() and _PyStaticType_Dealloc() functions to finalize a structseq static type in Py_Finalize(). Currrently, these functions do nothing if Python is built in release mode. Clear static types: * AsyncGenHooksType: sys.set_asyncgen_hooks() * FlagsType: sys.flags * FloatInfoType: sys.float_info * Hash_InfoType: sys.hash_info * Int_InfoType: sys.int_info * ThreadInfoType: sys.thread_info * UnraisableHookArgsType: sys.unraisablehook * VersionInfoType: sys.version * WindowsVersionType: sys.getwindowsversion()
* bpo-46219, 46221: simplify except* implementation following exc_info ↵Irit Katriel2022-01-021-3/+3
| | | | changes. Move helpers to exceptions.c. Do not assume that exception groups are truthy. (GH-30289)
* bpo-45711: Remove type and traceback from exc_info (GH-30122)Irit Katriel2021-12-171-10/+2
| | | | | | | | * Do not PUSH/POP traceback or type to the stack as part of exc_info * Remove exc_traceback and exc_type from _PyErr_StackItem * Add to what's new, because this change breaks things like Cython
* bpo-45292: [PEP-654] add except* (GH-29581)Irit Katriel2021-12-141-0/+8
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* bpo-46008: Make runtime-global object/type lifecycle functions and state ↵Eric Snow2021-12-091-0/+8
| | | | | | | | | | | | consistent. (gh-29998) This change is strictly renames and moving code around. It helps in the following ways: * ensures type-related init functions focus strictly on one of the three aspects (state, objects, types) * passes in PyInterpreterState * to all those functions, simplifying work on moving types/objects/state to the interpreter * consistent naming conventions help make what's going on more clear * keeping API related to a type in the corresponding header file makes it more obvious where to look for it https://bugs.python.org/issue46008
* bpo-45711: use exc_value instead of exc_type to determine if exc_info is ↵Irit Katriel2021-11-251-0/+2
| | | | valid. Add more assertions. (GH-29627)
* 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-38530: Refactor and improve AttributeError suggestions (GH-25776)Dennis Sweeney2021-05-031-0/+2
| | | | | | | | | | | | | | | | | | | | - Make case-swaps half the cost of any other edit - Refactor Levenshtein code to not use memory allocator, and to bail early on no match. - Add comments to Levenshtein distance code - Add test cases for Levenshtein distance behind a debug macro - Set threshold to `(name_size + item_size + 3) * MOVE_COST / 6`. - Reasoning: similar to `difflib.SequenceMatcher.ratio()` >= 2/3: ``` "Multiset Jaccard similarity" >= 2/3 matching letters / total letters >= 2/3 (name_size - distance + item_size - distance) / (name_size + item_size) >= 2/3 1 - (2*distance) / (name_size + item_size) >= 2/3 1/3 >= (2*distance) / (name_size + item_size) (name_size + item_size) / 6 >= distance With rounding: (name_size + item_size + 3) // 6 >= distance ``` Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
* bpo-38530: Offer suggestions on AttributeError (#16856)Pablo Galindo2021-04-141-0/+2
| | | | | | | | | When printing AttributeError, PyErr_Display will offer suggestions of similar attribute names in the object that the exception was raised from: >>> collections.namedtoplo Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: module 'collections' has no attribute 'namedtoplo'. Did you mean: namedtuple?
* bpo-42923: Dump extension modules on fatal error (GH-24207)Victor Stinner2021-01-181-0/+2
| | | | | | | The Py_FatalError() function and the faulthandler module now dump the list of extension modules on a fatal error. Add _Py_DumpExtensionModules() and _PyModule_IsExtension() internal functions.
* bpo-40696: Fix a hang that can arise after gen.throw() (GH-20287)Chris Jerdonek2020-05-221-1/+1
| | | | | | | | This updates _PyErr_ChainStackItem() to use _PyErr_SetObject() instead of _PyErr_ChainExceptions(). This prevents a hang in certain circumstances because _PyErr_SetObject() performs checks to prevent cycles in the exception context chain while _PyErr_ChainExceptions() doesn't.
* bpo-31033: Improve the traceback for cancelled asyncio tasks (GH-19951)Chris Jerdonek2020-05-171-0/+17
| | | | | When an asyncio.Task is cancelled, the exception traceback now starts with where the task was first interrupted. Previously, the traceback only had "depth one."
* bpo-38644: Pass tstate explicitly in signalmodule.c (GH-19184)Victor Stinner2020-03-261-0/+2
| | | | PyOS_InterruptOccurred() now checks _Py_ThreadCanHandleSignals() before checking if SIGINT is tripped.
* bpo-38733: PyErr_Occurred() caller must hold the GIL (GH-17080)Victor Stinner2019-11-071-1/+2
| | | | | | | | | | | bpo-3605, bpo-38733: Optimize _PyErr_Occurred(): remove "tstate == NULL" test. Py_FatalError() no longer calls PyErr_Occurred() if called without holding the GIL. So PyErr_Occurred() no longer has to support tstate==NULL case. _Py_CheckFunctionResult(): use directly _PyErr_Occurred() to avoid explicit "!= NULL" test.
* bpo-38644: Pass tstate to _Py_CheckFunctionResult() (GH-17050)Victor Stinner2019-11-051-0/+6
| | | | | * Add tstate parameter to _Py_CheckFunctionResult() * Add _PyErr_FormatFromCauseTstate() * Replace PyErr_XXX(...) with _PyErr_XXX(state, ...)
* bpo-36710: Pass explicitly tstate in sysmodule.c (GH-14060)Victor Stinner2019-06-131-0/+2
| | | | | | | | * Replace global var Py_VerboseFlag with interp->config.verbose. * Add _PyErr_NoMemory(tstate) function. * Add tstate parameter to _PyEval_SetCoroutineOriginTrackingDepth() and move the function to the internal API. * Replace _PySys_InitMain(runtime, interp) with _PySys_InitMain(runtime, tstate).
* bpo-36710: Add tstate parameter in ceval.c (GH-13547)Victor Stinner2019-05-241-0/+62
* Fix a possible reference leak in _PyErr_Print() if exception is NULL. * PyErr_BadInternalCall(): replace PyErr_Format() with _PyErr_SetString(). * Add pycore_pyerrors.h header file. * New functions: * _PyErr_Clear() * _PyErr_Fetch() * _PyErr_Print() * _PyErr_Restore() * _PyErr_SetObject() * _PyErr_SetString() * Add 'tstate' parameter to _PyEval_AddPendingCall().
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