Issues

• gh-125788: Improve ctypes error message for mismatched callback prototypes

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  python/cpython#161873·aribaskagan opened Nov 12, 2026 · Updated Nov 13, 2026
  4

• gh-161769: Preserve errno across release thread-state attachment

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  python/cpython#161770·Robolightning opened Nov 10, 2026 · Updated Nov 13, 2026
  7

• optparse: parsing many positional arguments takes quadratic time

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  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*

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  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

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

• gh-161143: Release completed buffered Pool iterator registrations

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  python/cpython#161144·JoaoMarcos44 opened Nov 1, 2026 · Updated Nov 3, 2026
  4

• gh-150467: Fix linking python3.dll and python3t.dll with ASan on Windows

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  python/cpython#160992·ck0i opened Oct 31, 2026 · Updated Nov 4, 2026
  5

• gh-160864: Clean up refused native thread starts

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  python/cpython#160865·GriffinCanCode opened Oct 29, 2026 · Updated Oct 29, 2026
  8

• gh-160699: Prevent concurrent reuse of cached SQLite statements

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  python/cpython#160706·mangod12 opened Oct 26, 2026 · Updated Nov 3, 2026
  9