cpython

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History

Miss Islington (bot) 8fffbb0982

[3.12] gh-113841: fix possible undefined division by 0 in _Py_c_pow() (GH-127211) (GH-127216) (GH-127530)

[3.13] gh-113841: fix possible undefined division by 0 in _Py_c_pow() (GH-127211) (GH-127216)

Note, that transformed expression is not an equivalent for original one (1/exp(-x) != exp(x) in general for floating-point numbers). Though, the difference seems to be ~1ULP for good libm implementations.

It's more interesting why division was used from beginning. Closest algorithm I've found (no error checks, of course;)) - it's Algorithm 190 from ACM: https://dl.acm.org/doi/10.1145/366663.366679. It uses subtraction in the exponent.

(cherry picked from commit f7bb658124aba74be4c13f498bf46cfded710ef9)

(cherry picked from commit f41d8d89e79d634895868656f50a0e16e339f9d6)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>

2024-12-02 19:47:42 +00:00

clinic

[3.12] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122013)

2024-07-19 09:08:33 +00:00

stringlib

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abstract.c

GH-101291: Rearrange the size bits in PyLongObject (GH-102464)

2023-03-22 14:49:51 +00:00

boolobject.c

[3.12] gh-122982: Extend the deprecation period for bool inversion by two years (GH-123306) (#123317 )

2024-08-25 19:40:11 +00:00

bytearrayobject.c

[3.12] gh-112625: Protect bytearray from being freed by misbehaving iterator inside bytearray.join (GH-112626) (GH-112693)

2023-12-04 08:46:40 +00:00

bytes_methods.c

gh-84436: Implement Immortal Objects (gh-19474)

2023-04-22 13:39:37 -06:00

bytesobject.c

[3.12] gh-105235: Prevent reading outside buffer during mmap.find() (GH-105252) (#106708 )

2023-07-14 22:15:14 -04:00

call.c

GH-103899: Provide a hint when accidentally calling a module (GH-103900)

2023-05-04 15:07:42 -07:00

capsule.c

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cellobject.c

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classobject.c

[3.12] GH-106895: Raise a ValueError when attempting to disable events that cannot be disabled. (GH-107337) (GH-107351)

2023-07-28 10:53:33 +01:00

codeobject.c

[3.12] gh-113993: Make interned strings mortal (GH-120520, GH-121364, GH-121903, GH-122303) (#123065 )

2024-09-27 13:28:48 -07:00

complexobject.c

[3.12] gh-113841: fix possible undefined division by 0 in _Py_c_pow() (GH-127211) (GH-127216) (GH-127530)

2024-12-02 19:47:42 +00:00

descrobject.c

[3.12] bpo-24766: doc= argument to subclasses of property not handled correctly (GH-2487) (GH-120312)

2024-06-10 10:32:45 +00:00

dictnotes.txt

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dictobject.c

[3.12] gh-116938: Fix dict.update docstring and remove erraneous full stop from dict documentation (GH-125421) (#126151 )

2024-10-29 23:22:20 +00:00

enumobject.c

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exception_handling_notes.txt

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exceptions.c

[3.12] gh-123378: fix a crash in UnicodeError.__str__ (GH-124935) (#125098 )

2024-10-08 11:56:18 +00:00

fileobject.c

gh-99537: Use Py_SETREF(var, NULL) in C code (#99687 )

2022-11-23 14:57:50 +01:00

floatobject.c

[3.12] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122013)

2024-07-19 09:08:33 +00:00

frame_layout.md

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frameobject.c

[3.12] GH-94438: Restore ability to jump over None tests (GH-111243)

2023-10-24 06:39:26 +00:00

funcobject.c

[3.12] gh-106033: Get rid of PyDict_GetItem in _PyFunction_FromConstructor (GH-106044) (GH-106228)

2023-06-29 13:45:39 +03:00

genericaliasobject.c

[3.12] gh-121660: Fix ga_getitem by explicitly checking for NULL result (GH-121661) (#121762 )

2024-07-14 11:37:00 +00:00

genobject.c

[3.12] gh-119897: Revert buggy optimization which was removed in 3.13 (#120467 )

2024-06-18 10:45:40 +01:00

interpreteridobject.c

[3.12] gh-101524: Only Use Public C-API in the _xxsubinterpreters Module (gh-105258) (gh-107303)

2023-07-27 13:15:47 -06:00

iterobject.c

gh-101892: Fix SystemError when a callable iterator call exhausts the iterator (#101896 )

2023-03-04 19:51:29 +05:30

listobject.c

[3.12] gh-120384: Fix array-out-of-bounds crash in list_ass_subscript (GH-120442) (#120825 )

2024-06-21 11:08:22 +00:00

listsort.txt

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lnotab_notes.txt

[3.12] Document the co_lines method on code objects (#113682 ) (#113686 )

2024-01-03 20:09:15 +00:00

locations.md

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longobject.c

[3.12] gh-121905: Consistently use "floating-point" instead of "floating point" (GH-121907) (GH-122013)

2024-07-19 09:08:33 +00:00

memoryobject.c

[3.12] gh-126341: add release check to __iter__ method of memoryview (GH-126759) (#126779 )

2024-11-13 20:44:01 +02:00

methodobject.c

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moduleobject.c

[3.12] gh-106719: Fix __annotations__ getter and setter in the type and module types (GH-106720) (GH-106848)

2023-07-18 10:01:22 +03:00

namespaceobject.c

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object_layout_312.gv

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object_layout_312.png

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object_layout_full_312.gv

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object_layout_full_312.png

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object_layout.md

[3.12] gh-106293: Fix typos in Objects/object_layout.md (GH-106294) (#114158 )

2024-01-16 23:35:20 +00:00

object.c

[3.12] gh-113993: Make interned strings mortal (GH-120520, GH-121364, GH-121903, GH-122303) (#123065 )

2024-09-27 13:28:48 -07:00

obmalloc.c

[3.12] gh-100227: Lock Around Modification of the Global Allocators State (gh-105516) (gh-105532)

2023-06-08 22:35:53 +00:00

odictobject.c

[3.12] gh-119004: fix a crash in equality testing between OrderedDict (GH-121329) (#124508 )

2024-09-27 11:33:44 -07:00

picklebufobject.c

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rangeobject.c

GH-101291: Rearrange the size bits in PyLongObject (GH-102464)

2023-03-22 14:49:51 +00:00

README

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setobject.c

[3.12] gh-113560: Improve docstrings for set.issubset() and set.issuperset() (GH-113562) (GH-114644)

2024-01-27 11:29:26 +00:00

sliceobject.c

gh-84436: Implement Immortal Objects (gh-19474)

2023-04-22 13:39:37 -06:00

structseq.c

[3.12] gh-122527: Fix a crash on deallocation of PyStructSequence (GH-122577) (#122626 )

2024-09-06 15:46:56 +02:00

tupleobject.c

[3.12] GH-121439: Allow PyTupleObjects with an ob_size of 20 in the free_list to be reused (gh-121428) (#121566 )

2024-07-10 08:06:41 +00:00

typeobject.c

[3.12] gh-126594: Fix typeobject.c wrap_buffer() cast (GH-126754) (#127005 )

2024-11-19 08:33:18 +00:00

typeslots.inc

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typeslots.py

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typevarobject.c

[3.12] gh-124498: Fix TypeAliasType not to be generic, when type_params=() (GH-124499) (#124604 )

2024-09-26 14:46:29 +00:00

unicodectype.c

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unicodeobject.c

[3.12] Fix Unicode encode_wstr_utf8() (#127420 ) (#127504 )

2024-12-02 13:24:26 +01:00

unicodetype_db.h

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unionobject.c

gh-104549: Set __module__ on TypeAliasType (#104550 )

2023-05-18 15:56:15 -07:00

weakrefobject.c

gh-94673: Properly Initialize and Finalize Static Builtin Types for Each Interpreter (gh-104072)

2023-05-01 19:36:00 -06:00

README

Source files for various builtin objects