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gh-149101: Implement PEP 788 - #149116

Merged

ZeroIntensity merged 93 commits into

python:mainfrom

ZeroIntensity:pep-788

May 6, 2026

Merged

gh-149101: Implement PEP 788#149116
ZeroIntensity merged 93 commits into
python:mainfrom
ZeroIntensity:pep-788

Commits on Apr 28, 2026
- Copy the reference implementation.
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  43b0798
- Merge branch 'main' of https://github.com/python/cpython into pep-788
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  722dbdf
- Document the new APIs.
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  73cccbb
- Add a whatsnew entry.
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  25e1cf0
- Fix stable ABI things.
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  af1022a
- Fix test_embed.
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  2fb8419
- SIlly news entry.
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  1096a32
- Documentation fixes.
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  407062f
- Make the sentinel const instead of changing the C analyzer.
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  a33bdfc
- Fix the html IDs job.
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Commits on Apr 29, 2026
- Merge branch 'main' into pep-788
  encukou
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  f95bfc7
- Apply suggestions from code review
  
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  a00bfbb
- Update Doc/c-api/threads.rst
  
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  6ca2499
- Fix lint and remove dead comment.
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  74259f8
- Improve new PyThreadState API docs.
  
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  eff9b40
- Fix lint.
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  bc78c10
Commits on Apr 30, 2026
- Apply suggestions from code review
  
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  encukou
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  0a30c25
- Update Doc/c-api/threads.rst
  
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  encukou
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  fe3d8a1
- Fix line endings.
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  ad69f96
- Remove accidental formatting changes.
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  1623556
- Fix memory ordering for the event reset.
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  cad8786
- Improve NO_TSTATE_SENTINEL.
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  e042656
- Fix some test things.
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  6a05c90
- Remove note about deallocation.
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  728ee3a
- Explicitly mark implementation details in the docs.
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  d9e1170
- Add missing versionadded markers.
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  2f824d3
- Remove dead comment.
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  ab9d783
- Merge branch 'main' of https://github.com/python/cpython into pep-788
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  10e241e
Commits on May 1, 2026
- Some improvements to PyThreadState_Release() based on review.
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  25687af
- Add a comment.
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  6d3b40a
- Remove _ prefix from struct names.
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  0c08141
- Only issue a fatal error for KeyboardInterrupt.
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  31f1155
- Don't use a full PyThreadState for NO_TSTATE_SENTINEL on release builds.
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  6c62b40
- Fix race during event spinning.
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  d8ce02d
- Merge branch 'main' of https://github.com/python/cpython into pep-788
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  e105120
Commits on May 4, 2026
- Merge in the main branch
  encukou
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  eb73203
- Switch to PyThreadStateToken
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  09a0d69
- Remove ensure_tstate_is_valid
  encukou
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  5a3f808
- Merge in the main branch
  encukou
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  d43ba9d
- Apply suggestions from code review
  
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  colesbury
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  9a04e93
- Simply exit instead of emitting a fatal error upon CTRL^C.
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  a382721
- Hardcode zero as the main interpreter ID.
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  03862fb
- Fix leak in get_main_interp_guard.
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  df720a5
- Improve readability and fix warning.
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  767c894
- Use void instead of a struct for PyThreadStateToken.
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  38a2153
- Run test_embed with TSan.
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Commits on May 5, 2026
- Switch to a single atomic field instead of using locks and events.
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  811ca19
- Fix existing thread-safety issue with interp_has_threads().
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  ac58a16
- Use the parking lot to avoid eating CPU cycles.
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  4ced3a1
- Stupid merge conflicts.
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  9345afd
- Fix C analyzer.
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  11cbe5c
- Stupid warnings.
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  99098d7
- Fix thread leaks in test_embed.
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  1c184f1
- Fix deadlock in test_atexit.
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  af57d9d
- Fix missing newline.
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  7289037
- Remove stray newline change from pycore_lock.h
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  a538acc
- Use sequential memory ordering in _testembed.
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  4bec1e7
- Potentially fix some things?
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  5d28e1a
- Add a test stressing a lot of threads against finalization.
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  62b137e
- Export _Py_yield.
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  2378c88
- Fix race in interp_has_threads.
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  e7466f1
- Fix formatting.
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  5d797cf
- Merge branch 'main' of https://github.com/python/cpython into pep-788
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  5f1d2e0
- Close owned guards before deleting them, not after.
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  4b446e7
- Add assertions to ensure that the guard count is zero upon reinitialization.
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  b4db0a6
- Move PyInterpreterGuard_Close call to after the deletion again.
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  c43cae7
- Update Python/pystate.c
  
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  colesbury
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  5e25ba9
- Update Python/pylifecycle.c
  
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  colesbury
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  08e845c
- Update Doc/c-api/interp-lifecycle.rst
  
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- Use PyThreadStateToken in the example.
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  f60d888
- Merge branch 'pep-788' of https://github.com/zerointensity/cpython into pep-788
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  dd930ef
- Fix swapped links the whatsnew.
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  7aa2f65
- Fix failure note + use affirmative tone in PyInterpreterView_FromMain docs.
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  541169d
- Remove usage of _Py_yield.
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  d75e6d9
- Fix issue with re-entrant clearing.
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  9f7b014
- Remove needless calls to _PyThreadState_Attach/_PyThreadState_Detach.
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  f9cb8f7
- Simplify locking in make_pre_finalization_calls.
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  29fa419
- Fix a few other bugs.
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  211edf1
- Move some tests to _testinternalcapi.
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  aaa516e
- Add a test stressing detachment behavior.
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  e1da86c
- Fix unused test.
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  95cdd3a
- Release the GIL while joining the thread in test_thread_state_release_with_destructor.
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Commits on May 6, 2026
- Fix detached gilstates being attached upon release.
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  3987445
- Don't use an actual thread for test_thread_state_release_with_destructor.
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  45d6ece
- Remove dead comment.
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  319b700
- Fix the C analyzer yet again.
  ZeroIntensity
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  a34dbc6
- Merge branch 'main' of https://github.com/python/cpython into pep-788
  ZeroIntensity
  committed
  9e48209
- Fix whatsnew reference.
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  59e2d9a
- Fix typos.
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  7a6cc0c
- Fix test name.
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  0945129
- Avoid using a second sentinel.
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  c5148d1
- Do the compare-exchange under the head lock.
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  adb985f
- Don't try to clear owned_guard in PyThreadState_Clear().
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  53fa94b

gh-149101: Implement PEP 788 by ZeroIntensity · Pull Request #149116 · python/cpython · GitHub

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gh-149101: Implement PEP 788 - #149116

gh-149101: Implement PEP 788#149116ZeroIntensity merged 93 commits intopython:mainpython/cpython:mainfrom ZeroIntensity:pep-788ZeroIntensity/cpython:pep-788Copy head branch name to clipboard

Commits

Commits on Apr 28, 2026

Commits on Apr 29, 2026

Commits on Apr 30, 2026

Commits on May 1, 2026

Commits on May 4, 2026

Commits on May 5, 2026

Commits on May 6, 2026

gh-149101: Implement PEP 788#149116
ZeroIntensity merged 93 commits into
python:mainfrom
ZeroIntensity:pep-788