Issues

• [3.15] gh-160176: Fix crash in tkinter on deeply nested or recursive lists (GH-160177)

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  python/cpython#161071·miss-islington opened Nov 1, 2026 · Updated Nov 1, 2026

• [3.14] gh-160324: Keep io.StringIO state after MemoryError (GH-160325)

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  python/cpython#161042·miss-islington opened Oct 31, 2026 · Updated Oct 31, 2026

• [3.15] gh-160324: Keep io.StringIO state after MemoryError (GH-160325)

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  python/cpython#161041·miss-islington opened Oct 31, 2026 · Updated Nov 1, 2026
  1

  

• [3.11] gh-160506: Fix ntpath.realpath() for broken links via directory links (GH-160507)

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  python/cpython#161030·miss-islington opened Oct 31, 2026 · Updated Oct 31, 2026

• [3.12] gh-160506: Fix ntpath.realpath() for broken links via directory links (GH-160507)

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  python/cpython#161029·miss-islington opened Oct 31, 2026 · Updated Oct 31, 2026

• [3.13] gh-160506: Fix ntpath.realpath() for broken links via directory links (GH-160507)

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  python/cpython#161028·miss-islington opened Oct 31, 2026 · Updated Oct 31, 2026

• [3.14] gh-160506: Fix ntpath.realpath() for broken links via directory links (GH-160507)

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  python/cpython#161027·miss-islington opened Oct 31, 2026 · Updated Nov 1, 2026
  1

  

• [3.11] gh-160499: Pause asyncio TLS reads when SSL replies pile up (GH-160500)

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  python/cpython#160897·miss-islington opened Oct 29, 2026 · Updated Oct 31, 2026

• [3.12] gh-160499: Pause asyncio TLS reads when SSL replies pile up (GH-160500)

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  python/cpython#160896·miss-islington opened Oct 29, 2026 · Updated Oct 31, 2026

• [3.13] gh-160499: Pause asyncio TLS reads when SSL replies pile up (GH-160500)

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  python/cpython#160895·miss-islington opened Oct 29, 2026 · Updated Oct 31, 2026

• gh-160525: Fix quadratic text concatenation in xml.dom.expatbuilder

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  python/cpython#160526·gpshead opened Oct 23, 2026 · Updated Oct 24, 2026·Draft
  

• Colorful pprint

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  python/cpython#160466 · Filter by author ZeroIntensity opened on Oct 23, 2026
  5

  

• gh-139759: Don't delete subinterpreters after fork

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  python/cpython#160450·ZeroIntensity opened Oct 23, 2026 · Updated Oct 23, 2026

• gh-160303: Fix bytearray state after a failed del b[:n]

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  python/cpython#160304·gpshead opened Oct 22, 2026 · Updated Nov 3, 2026
  7

  

• gh-158660: Avoid locking for new lists with preallocated space

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  python/cpython#160156·ZeroIntensity opened Oct 22, 2026 · Updated Oct 22, 2026·Draft
  1

• gh-150865: Add PyUnstable_Immortalize

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  python/cpython#160138·ZeroIntensity opened Oct 21, 2026 · Updated Nov 4, 2026
  13

• gh-153401: Highlight matching delimiters in the REPL

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  python/cpython#160038·johnslavik opened Oct 21, 2026 · Updated Oct 21, 2026·Draft
  1

• gh-148228: Render REPL error overlays in brackets and non-bold red

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  python/cpython#160008·johnslavik opened Oct 21, 2026 · Updated Oct 25, 2026
  8

• gh-159973: Highlight soft keywords after token.NL / token.DEDENT

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  python/cpython#159992·johnslavik opened Oct 20, 2026 · Updated Oct 22, 2026
  6

• Soft keyword highlighting issues on continuation lines

  sprintstdlibtopic-repltype-bug
  python/cpython#159973 · Filter by author johnslavik opened on Oct 20, 2026
  

• ThreadPoolExecutor tasks see the context of whichever submit() call started their worker thread

  sprintstdlibtopic-free-threadingtype-bug
  python/cpython#159964 · Filter by author ngoldbaum opened on Oct 20, 2026
  4

  

• Support multi-statement prompts in PDB REPL

  sprintstdlibtype-feature
  python/cpython#159887 · Filter by author johnslavik opened on Oct 20, 2026
  2

  

• gh-159815: do not leave stale OpenSSL errors in _hashlib

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  python/cpython#159816·picnixz opened Oct 19, 2026 · Updated Oct 22, 2026·Draft
  1

  

• Free-threaded build never returns freed memory to the OS on macOS, even with gc.collect() and MIMALLOC_PURGE_DELAY=0

  interpreter-coreperformancesprinttopic-free-threadingtype-bug
  python/cpython#158972 · Filter by author dotdandotunderscore opened on Oct 7, 2026
  4

  

• gh-157612: Strip prompts and output from pasted REPL sessions

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  python/cpython#157615·johnslavik opened Sep 16, 2026 · Updated Oct 22, 2026
  22