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Update to WASI SDK 33

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

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

OS-wasi

Status: Open.

#149252 In python/cpython;

· brettcannon opened on May 1, 2026

statistics: covariance, correlation, and linear_regression do not accept iterator inputs

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149244 In python/cpython;

· htjworld opened on May 1, 2026

CALL_ALLOC_AND_ENTER_INIT does not seem to _CHECK_RECURSION_REMAINING

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.

#149243 In python/cpython;

· Fidget-Spinner opened on May 1, 2026

Modifying offsets of existing members in _gc_runtime_state is probably a bad idea

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.

#149242 In python/cpython;

· DinoV opened on May 1, 2026

New LOAD_ATTR_CLASS_WITH_METACLASS_CHECK does not guard against __class__ reassignment

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.

#149239 In python/cpython;

· Fidget-Spinner opened on May 1, 2026

Avoid boolean objects when branching in the JIT

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

performancePerformance or resource usagePerformance or resource usage

topic-JIT

Status: Open.

#149238 In python/cpython;

· markshannon opened on May 1, 2026

Limit boolean input in IPv4Address.__init__ and IPv6Address.__init__

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

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

Status: Open.

#149234 In python/cpython;

· lighting9999 opened on May 1, 2026

tomllib: Limit number of parts of a key

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

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

Status: Open.

#149231 In python/cpython;

· encukou opened on May 1, 2026

_remote_debugging: async aware does not show tasks from a non-main thread

extension-modulesC modules in the Modules dirC modules in the Modules dir

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

Status: Open.

#149230 In python/cpython;

· maurycy opened on May 1, 2026

Expose PyCriticalSection in Stable ABI

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

topic-C-API

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149225 In python/cpython;

· encukou opened on May 1, 2026

random module binomialvariate function returns wrong results

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

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

Status: Open.

#149221 In python/cpython;

· lighting9999 opened on May 1, 2026

Add frozendict test in Lib/test/test_crossinterp.py

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

testsTests in the Lib/test dirTests in the Lib/test dir

topic-subinterpreters

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#149219 In python/cpython;

· sobolevn opened on May 1, 2026