Issues

• Create a test command for Platforms/WASI

  buildOS-wasi
  python/cpython#161367 · Filter by author brettcannon opened on Nov 4, 2026
  3

  

• 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_ast: test_nodes_have_inline_values() fails when test_ast is run twice

  teststype-bug
  python/cpython#161354 · Filter by author vstinner opened on Nov 4, 2026
  1

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

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

• test_imaplib failed with ConnectionRefusedError on AMD64 FreeBSD Refleaks 3.15 buildbot

  teststype-bug
  python/cpython#161336 · Filter by author vstinner opened on Nov 4, 2026
  7

• 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
  7

• Add runtime generic alias support to datetime

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

• Consider module names for Gecko profiler resources

  stdlibtopic-profilingtype-feature
  python/cpython#161299 · Filter by author makwana-akshat opened on Nov 4, 2026
  1

• reprlib.Repr truncation ignores the length of a custom fillvalue

  stdlibtype-bug
  python/cpython#161289 · Filter by author andresdelfino opened on Nov 4, 2026

• email.header: folding a long header takes quadratic time

  stdlibtopic-emailtype-bug
  python/cpython#161284 · Filter by author thejesh23 opened on Nov 4, 2026

• optparse: parsing many positional arguments takes quadratic time

  AI-needs-explanationstdlibtype-bug
  python/cpython#161282 · Filter by author thejesh23 opened on Nov 4, 2026
  2

• _pyio.IOBase.readlines(hint) stops one line early when the total size read equals *hint*

  AI-needs-explanation
  python/cpython#161272 · Filter by author tsayin4 opened on Nov 3, 2026
  3

• _pyio.BufferedRandom.truncate() keeps the read buffer, so later reads return data that is no longer in the file

  AI-needs-explanation
  python/cpython#161271 · Filter by author tsayin4 opened on Nov 3, 2026
  3

• Lazy from .sub import sub in a package is overwritten when the submodule is imported elsewhere

  interpreter-coretopic-lazy-importstype-bug
  python/cpython#161265 · Filter by author Lillecarl opened on Nov 3, 2026

• Tests which use MD5-based WWW-Authentication challenges fail on FIPS OpenSSL

  teststype-bug
  python/cpython#161263 · Filter by author sethmlarson opened on Nov 3, 2026

• test_pathlib.test_touch_common sometimes fails on Emscripten

  OS-emscriptenteststopic-pathlibtype-bug
  python/cpython#161262 · Filter by author deadlovelll opened on Nov 3, 2026

• statistics.correlation() is inaccurate for tiny inputs

  stdlibtype-bug
  python/cpython#161259 · Filter by author vmphase opened on Nov 3, 2026

• SIGCONT crashes code.interact() shells due to conflicting pyrepl UnixConsole init

  topic-repltype-bug
  python/cpython#161254 · Filter by author meshulam opened on Nov 3, 2026

• Improve performance of exceptions

  interpreter-coreperformancetype-feature
  python/cpython#161242 · Filter by author eendebakpt opened on Nov 3, 2026
  1

• Path.copy fails on filesystems where FICLONE returns EPERM instead of falling back

  stdlibtopic-pathlibtype-bug
  python/cpython#161241 · Filter by author dropps07 opened on Nov 3, 2026

• signalmodule.c in free-threaded Python

  extension-modulestopic-free-threadingtype-bug
  python/cpython#161235 · Filter by author johng opened on Nov 3, 2026
  4

• [C API] _PyTuple_Resize() must copy the tuple if the hash value was already computed

  topic-C-APItype-bug
  python/cpython#161226 · Filter by author vstinner opened on Nov 3, 2026
  5