Issues

• json.dumps: single circle markers hash lookup

  type-feature
  python/cpython#161661 · Filter by author aivarsk opened on Nov 9, 2026
  1

• Enable test_json to pass with PYTHON_LAZY_IMPORTS=all

  teststype-bug
  python/cpython#161660 · Filter by author sobolevn opened on Nov 9, 2026
  

• AF_VSOCK sockets reject buffered SOL_SOCKET options

  python/cpython#161657 · Filter by author bvolpato opened on Nov 9, 2026

• zipimport reads and unmarshals pyc's twice per import

  performancestdlibtopic-importlibtype-feature
  python/cpython#161644 · Filter by author itamaro opened on Nov 8, 2026
  1

  

• [C API] Add PyList_AsTupleAndClear() function

  interpreter-coretopic-C-APItype-feature
  python/cpython#161635 · Filter by author vstinner opened on Nov 8, 2026
  2

• test_ttk: NotebookTest.test_traversal() fails randomly on Windows

  teststopic-tkinter
  python/cpython#161634 · Filter by author vstinner opened on Nov 8, 2026
  1

• tkinter: os.dup2() on fds 1/2 breaks every subsequent Tcl interpreter on Windows

  extension-modulesOS-windowstopic-tkintertype-bug
  python/cpython#161620 · Filter by author kakakakacat opened on Nov 8, 2026
  1

• Enable test_clinic to pass with PYTHON_LAZY_IMPORTS=all

  teststype-bug
  python/cpython#161617 · Filter by author sobolevn opened on Nov 8, 2026
  

• Python 3.15.2 macOS installer: dangling Tcl/Tk PrivateHeaders links

  buildOS-mactopic-installationtopic-tkintertype-bug
  python/cpython#161611 · Filter by author lynch1700 opened on Nov 8, 2026
  3

  

• frozendict is not mentioned in Doc/reference/expressions.rst

  docs
  python/cpython#161608 · Filter by author dluschan opened on Nov 8, 2026
  1

• Documented parameter names of some inspect functions don't match the implementation

  docs
  python/cpython#161591 · Filter by author thejesh23 opened on Nov 7, 2026

• Incomplete extraction of tar archive with invalid global PAX header 'size' in tarfile

  stdlibtype-bug
  python/cpython#161588 · Filter by author ptim0626 opened on Nov 7, 2026

• curses.tparm() crashes for capabilities that take string parameters

  3.143.153.16extension-modulestopic-cursestype-crash
  python/cpython#161571 · Filter by author serhiy-storchaka opened on Nov 7, 2026

• http.cookiejar deletes cookies of other domains via expired Set-Cookie [CVE-2026-124249]

  3.113.123.133.143.153.16stdlibtype-security
  python/cpython#161569 · Filter by author Eclips4 opened on Nov 7, 2026
  

• Request to restore PyWeakref_GetObject() to the v3.15 limited API

  interpreter-corependingtopic-C-API
  python/cpython#161568 · Filter by author philthompson10 opened on Nov 7, 2026
  8

• Fix test_type_annotations to work with PYTHON_LAZY_IMPORTS=all

  teststype-bug
  python/cpython#161564 · Filter by author sobolevn opened on Nov 7, 2026
  

• [C API] Change PyTypeObject.tp_flags type to uint64_t

  interpreter-coretopic-C-APItype-feature
  python/cpython#161562 · Filter by author vstinner opened on Nov 7, 2026
  2

  

• asyncio: an SSL connection whose peer closes while reading is paused cannot be closed, and its writes are dropped

  stdlibtopic-asynciotype-bug
  python/cpython#161560 · Filter by author cornopaez opened on Nov 7, 2026

• Re-importing _pyrepl.readline leaks file descriptors

  3.143.153.16topic-repltype-bug
  python/cpython#161549 · Filter by author Eclips4 opened on Nov 7, 2026
  4

  

• AMD64 Android 3.x failed: Failed to install split APK

  OS-androidteststype-bug
  python/cpython#161528 · Filter by author vstinner opened on Nov 7, 2026
  3

• Optimising sparse dict copy

  interpreter-coreperformancetype-feature
  python/cpython#161524 · Filter by author johng opened on Nov 7, 2026

• io: TextIOWrapper silently corrupts output when encoder is a no-op

  extension-modulestopic-IOtype-bug
  python/cpython#161518 · Filter by author grgalex opened on Nov 6, 2026

• platform: import _wmi on first use

  OS-windowsperformancestdlibtype-feature
  python/cpython#161513 · Filter by author azchohfi opened on Nov 6, 2026
  1

• mimetypes: reading the Windows registry through HKEY_CLASSES_ROOT is slow

  extension-modulesOS-windowspendingperformancetype-feature
  python/cpython#161512 · Filter by author azchohfi opened on Nov 6, 2026
  3

• Windows venv python.exe starts a second process; could the launcher run the interpreter in-process?

  OS-windowsperformancetype-feature
  python/cpython#161511 · Filter by author azchohfi opened on Nov 6, 2026
  1