Search results

Calls to memset and memcpy are slow for 2^k+1 elements

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#137121 In python/cpython;

· bjorn-martinsson opened on Jul 26, 2025

20 comments

Condense the str() docstring.

docsDocumentation in the Doc dirDocumentation in the Doc dir

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

triagedThe issue has been accepted as valid by a triager.The issue has been accepted as valid by a triager.

Status: Open.

#137112 In python/cpython;

· hyperkai opened on Jul 25, 2025

5 comments



Inconsistency handling of immortal objects in gc

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#137110 In python/cpython;

· sergey-miryanov opened on Jul 25, 2025

The keyword typo error messages work inconsistently when executed over files

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-parser

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#137078 In python/cpython;

· pablogsal opened on Jul 24, 2025

pyport.h: use __STDC_VERSION__ >= 202311L instead of __STDC_VERSION__ > 201710L

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

Status: Open.

#137058 In python/cpython;

· anthony-tuininga opened on Jul 23, 2025

5 comments

Assertion failure in _PyEval_EvalFrameDefault due to unexpected opcode

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#137030 In python/cpython;

· emmatyping opened on Jul 23, 2025

8 comments

JIT: assertion failure in _PyObject_GC_UNTRACK

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-JIT

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#137007 In python/cpython;

· devdanzin opened on Jul 22, 2025

11 comments



JIT: executor->vm_data.valid assertion failure in unlink_executor

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-JIT

type-crashA hard crash of the interpreter, possibly with a core dumpA hard crash of the interpreter, possibly with a core dump

Status: Open.

#136996 In python/cpython;

· devdanzin opened on Jul 22, 2025

8 comments



Don't use var in js code

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

OS-emscripten

type-refactorCode refactoring (with no changes in behavior)Code refactoring (with no changes in behavior)

Status: Open.

#136938 In python/cpython;

· sobolevn opened on Jul 21, 2025

5 comments



Update str.translate() docstring to match docs

docsDocumentation in the Doc dirDocumentation in the Doc dir

easy

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

Status: Open.

#136897 In python/cpython;

· hyperkai opened on Jul 21, 2025

6 comments

Intern string representation of operators and some other symbolic literals

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#136757 In python/cpython;

· abebus opened on Jul 18, 2025

4 comments

assert does not have = -> == suggestion

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-parser

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#136616 In python/cpython;

· sobolevn opened on Jul 13, 2025



Improve long_hash

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#136599 In python/cpython;

· eendebakpt opened on Jul 12, 2025

Tools/cases_generator/interpreter_definition.md lacks information about some prefixes

docsDocumentation in the Doc dirDocumentation in the Doc dir

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

Status: Open.

#136567 In python/cpython;

· Eclips4 opened on Jul 12, 2025

4 comments



Switching between the JIT and interpreter is too slow.

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

performancePerformance or resource usagePerformance or resource usage

topic-JIT

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#136410 In python/cpython;

· markshannon opened on Jul 8, 2025

1 comment

Deprecate -b and -bb CLI flags

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-sysconfig

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#136355 In python/cpython;

· sobolevn opened on Jul 7, 2025

7 comments



Inconsistent TypeError messages with callables

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136327 In python/cpython;

· Tapeline opened on Jul 5, 2025

2 comments



Code object comparison could lead to monitoring issue

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136223 In python/cpython;

· gaogaotiantian opened on Jul 3, 2025

2 comments

3.14 is missing a bytecode line number for one-line conditionals

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.15new features, bugs and security fixesnew features, bugs and security fixes

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136190 In python/cpython;

· nedbat opened on Jul 1, 2025

1

2 comments

JIT global-to-constant promotion doesn't properly validate the globals dictionary at runtime

3.13bugs and security fixesbugs and security fixes

3.14bugs and security fixesbugs and security fixes

3.15new features, bugs and security fixesnew features, bugs and security fixes

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-JIT

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136154 In python/cpython;

· brandtbucher opened on Jun 30, 2025

3 comments

Getting ImportError and suggestion to rename module for no valid reason

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136094 In python/cpython;

· sausix opened on Jun 29, 2025

5 comments

Expansion of NAN/HUGE_VAL is a function address on Solaris

buildThe build process and cross-buildThe build process and cross-build

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

OS-unsupported

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136006 In python/cpython;

· TCH68k opened on Jun 26, 2025

29 comments



Some pre-finalization callbacks can create other callbacks

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-C-API

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#136003 In python/cpython;

· ZeroIntensity opened on Jun 26, 2025

1 comment

Improving various error messages

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-parser

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#135975 In python/cpython;

· Joeccp opened on Jun 26, 2025

4 comments

ast.ImportFrom.level is incorrectly marked as optional

interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

topic-parser

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#135959 In python/cpython;

· JelleZijlstra opened on Jun 26, 2025

2 comments