Issues

• python -m random N prints a float for an integer N <= 0

  stdlibtype-bug
  python/cpython#161452 · Filter by author andresdelfino opened on Nov 5, 2026

• Adapt tkinter and IDLE tests to the upcoming Tcl/Tk releases

  3.143.153.16teststopic-IDLEtopic-tkintertype-bug
  python/cpython#161441 · Filter by author serhiy-storchaka opened on Nov 5, 2026

• Show which tuple item is unhashable when a nested dict key or set element is rejected

  interpreter-coretype-feature
  python/cpython#161433 · Filter by author WakaTaira opened on Nov 5, 2026

• regrtest: Don't list tests expected to be skipped

  teststype-refactor
  python/cpython#161430 · Filter by author vstinner opened on Nov 5, 2026
  1

• Assignment of a signed value 'str' to a bigger unsigned variable 'ucs4' at /Objects/unicodeobject.c

  interpreter-coretype-bug
  python/cpython#161429 · Filter by author Danila-Babushkin opened on Nov 5, 2026
  2

• macOS 3.13.17 installer: tkinter drops all events sent to widgets in a hidden window

  3.13OS-mactopic-tkintertype-bug
  python/cpython#161428 · Filter by author israel-dryer opened on Nov 5, 2026

• Free-threaded 3.14.10 and 3.15.2 keep memory freed by other threads: 10 GB peaks since the mimalloc 2.5.2 update

  interpreter-coreperformancetopic-free-threadingtype-bug
  python/cpython#161420 · Filter by author maikschulze opened on Nov 5, 2026
  2

• Free-threading: weakref can revive an object being deallocated after its finalizer ran

  interpreter-coretopic-free-threadingtype-crash
  python/cpython#161419 · Filter by author eendebakpt opened on Nov 5, 2026
  3

• pydoc help() lists related topics that do not exist (FILES, unicode)

  stdlibtype-bug
  python/cpython#161415 · Filter by author andresdelfino opened on Nov 5, 2026

• multiprocessing: spawn and forkserver leak inheritable fds to further sub-processes

  stdlibtopic-multiprocessingtype-bug
  python/cpython#161408 · Filter by author haampie opened on Nov 5, 2026
  2

• Audit hooks added before Py_Initialize() are freed with the wrong allocator, crashing at exit

  interpreter-coretype-crash
  python/cpython#161407 · Filter by author maikschulze opened on Nov 5, 2026

• csv.Sniffer returns a dialect that drops empty space-delimited fields

  stdlibtype-bug
  python/cpython#161400 · Filter by author fedonman opened on Nov 5, 2026

• aiter() and anext() call __aiter__ and __anext__ unbound

  stdlibtopic-asynciotype-bug
  python/cpython#161394 · Filter by author fedonman opened on Nov 5, 2026
  3

• ctypes: _Pointer.contents setter casts a __class__-spoofed value to CDataObject *

  extension-modulestopic-ctypestype-crash
  python/cpython#161390 · Filter by author theosotr opened on Nov 5, 2026
  1

• tkinter: setvar() passes AsObj's NULL to Tcl when the value's __str__ raises

  extension-modulestopic-tkintertype-crash
  python/cpython#161388 · Filter by author theosotr opened on Nov 5, 2026
  

• decimal: _decimal casts the value of its decimal_context ContextVar without a type check

  extension-modulestype-crash
  python/cpython#161387 · Filter by author theosotr opened on Nov 5, 2026

• ipaddress: IPv6Network.exploded fails for networks with a scope ID

  stdlibtype-bug
  python/cpython#161384 · Filter by author jimbou opened on Nov 5, 2026

• Create a test command for Platforms/WASI

  buildOS-wasi
  python/cpython#161367 · Filter by author brettcannon opened on Nov 4, 2026
  5

  

• gc debug "collectables" print can deadlock in free threading

  interpreter-coretopic-free-threadingtype-bug
  python/cpython#161366 · Filter by author johng opened on Nov 4, 2026

• Building Programs/_freeze_module sometimes fails with missing symbols, like undefined reference to PyErr_CheckSignals

  buildtype-bug
  python/cpython#161364 · Filter by author vstinner opened on Nov 4, 2026
  2

• test_tcl leaked [1, 1, 1] handles on AMD64 Windows Server 2025 Refleaks 3.x

  OS-windowsteststopic-tkintertype-bug
  python/cpython#161353 · Filter by author vstinner opened on Nov 4, 2026
  6

• Speed up _sre matching of runs of literal characters

  extension-modulesperformancetopic-regextype-feature
  python/cpython#161335 · Filter by author MercylinPreethi opened on Nov 4, 2026
  1

• tarfile: Windows same-drive drive-relative symlink not caught by data filter

  3.113.123.133.143.153.16OS-windowsstdlibtype-security
  python/cpython#161323 · Filter by author gpshead opened on Nov 4, 2026
  

• Docs: every functions should be in the TOC

  docspending
  python/cpython#161307 · Filter by author 2epeat opened on Nov 4, 2026
  8

• Add runtime generic alias support to datetime

  stdlibtopic-typingtype-feature
  python/cpython#161304 · Filter by author m-aciek opened on Nov 4, 2026
  3