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Issues

• http client putrequest changes active continue timeout after rejected call

  python/cpython#161861 · opened on Nov 12, 2026

• ElementTree: itertext() and tostring(method="text") lose the text of elements whose tag is a QName

  python/cpython#161809 · opened on Nov 11, 2026
  1

• ElementTree: invalid paths raise KeyError instead of SyntaxError, and C and Python disagree on them

  python/cpython#161808 · opened on Nov 11, 2026
  1

• ElementTree: empty path makes find()/findall()/findtext() raise TypeError

  python/cpython#161807 · opened on Nov 11, 2026
  1

• inspect.getframeinfo and traceback build every preceding co_positions() tuple

  python/cpython#161799 · opened on Nov 11, 2026
  4

• Support path-like objects in shutil.which()

  python/cpython#161788 · opened on Nov 10, 2026
  3

• asyncio.as_completed() leaves stale awaited_by edges when the loop exits early

  python/cpython#161766 · opened on Nov 10, 2026
  1

• Use the Neri–Schneider algorithm for ordinal-to-date conversion in datetime

  python/cpython#161746 · opened on Nov 10, 2026
  3

• compression.zstd.open() names the wrong mode in its invalid mode error

  python/cpython#161730 · opened on Nov 10, 2026

• Cookie Attribute Injection via Unescaped Semicolons in http.cookies.Morsel.OutputString()

  python/cpython#161707 · opened on Nov 9, 2026
  1

• [security] Prevent shadowing stdlib in gzip/tarfile/zipfile CLI [CVE-2026-115791]

  python/cpython#161705 · opened on Nov 9, 2026

• gh-161644: Avoid unmarshalling zipped .pyc files twice on import

  Unread
  #161700· opened Nov 9, 2026 · Updated Nov 9, 2026
  1

• email: non-ASCII whitespace after a space is lost from address display names

  python/cpython#161678 · opened on Nov 9, 2026

• http.server: HTTP/1.1 requests without Host, with two Host fields or with an invalid Host value are accepted

  python/cpython#161675 · opened on Nov 9, 2026

• multiprocessing: on Windows, a message over 4,294,967,247 bytes raises OSError and breaks a waiting receiver

  python/cpython#161668 · opened on Nov 9, 2026
  2

• zipimport reads and unmarshals pyc's twice per import

  python/cpython#161644 · opened on Nov 8, 2026
  1

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

  python/cpython#161588 · opened on Nov 7, 2026

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

  python/cpython#161569 · opened on Nov 7, 2026

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

  python/cpython#161560 · opened on Nov 7, 2026

• platform: import _wmi on first use

  python/cpython#161513 · opened on Nov 6, 2026
  1

• Windows: avoid importing encodings._win_cp_codecs and time at startup

  python/cpython#161510 · opened on Nov 6, 2026
  3

• ssl.get_server_certificate(addr, ca_certs=...) verifies the chain but never the identity

  python/cpython#161503 · opened on Nov 6, 2026

• python -m asyncio pstree loses nodes on Task → Future → Task chains

  python/cpython#161502 · opened on Nov 6, 2026

• pure-Python suggestion fallback differs from the C implementation

  python/cpython#161495 · opened on Nov 6, 2026
  2

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

  python/cpython#161452 · opened on Nov 5, 2026