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Commits on Jul 18, 2026
gh-153908: Fix data race in `itertools.count.__repr__` (GH-153917)
johng
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Commits on Jul 10, 2026
gh-153062: Fix a crash iterating itertools.tee on the free-threaded build (gh-153063)
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tonghuaroot
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nascheme
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Commits on Jun 2, 2026
gh-150319: Replace all documentation which says "See PEP 585" (#150325)
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Commits on May 24, 2026
gh-150285: Fix too long docstrings in Argument Clinic code (GH-150338)
serhiy-storchaka
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287c98f
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Commits on Apr 2, 2026
GH-145247: Use _PyTuple_FromPair in Modules (part 1) (#148000)
sergey-miryanov
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0c10066
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gh-146613: Fix re-entrant use-after-free in `itertools._grouper` (#147962)
TheSkyC
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Commits on Mar 27, 2026
gh-123471: Make `itertools.zip_longest` safe in the FT build (#146033)
eendebakpt
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Commits on Mar 24, 2026
gh-128341: Use _Py_ABI_SLOT in stdlib modules (#145770)
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Commits on Mar 16, 2026
gh-123471: make concurrent iteration over itertools.accumulate thread-safe (#144486)
eendebakpt
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Commits on Mar 9, 2026
gh-145376: Fix various reference leaks in Objects/ and Modules/ (#145385)
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eendebakpt
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Commits on Feb 9, 2026
gh-143543: Fix re-entrant use-after-free in itertools.groupby (GH-143738)
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Commits on Feb 4, 2026
gh-123471: Make concurrent iteration over `itertools.permutations` and `itertools.combinations_with_replacement` thread-safe (gh-144402)
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Commits on Oct 15, 2025
gh-140061: Use `_PyObject_IsUniquelyReferenced()` to check if objects are uniquely referenced (gh-140062)
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Commits on Oct 11, 2025
gh-111489: Remove _PyTuple_FromArray() alias (#139973)
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Commits on Sep 2, 2025
GH-135763: AC: Use ``Py_ssize_t(allow_negative=False)`` (#138394)
AA-Turner
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Commits on Aug 18, 2025
GH-137623: Use an AC decorator for docstring line length enforcement (#137690)
AA-Turner
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Commits on Jun 30, 2025
gh-123471: Make itertools.product and itertools.combinations thread-safe (#132814)
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gh-123471: Make itertools.chain thread-safe (#135689)
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Commits on Jun 2, 2025
gh-123471: make concurrent iteration over `itertools.cycle` safe under free-threading (#131212)
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Commits on Apr 13, 2025
gh-123471: Make concurrent iteration over itertools.repeat safe under free-threading (#131247)
eendebakpt
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Commits on Mar 27, 2025
gh-131525: Cache the result of tuple_hash (#131529)
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Commits on Mar 12, 2025
gh-111178: Change Argument Clinic signature for `@classmethod` (#131157)
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gh-123471: make `itertools.batched` thread-safe (#129416)
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Commits on Feb 19, 2025
gh-111178: fix UBSan failures in `Modules/itertoolsmodule.c` (GH-129780)
picnixz
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Commits on Dec 2, 2024
gh-126618: fix repr(itertools.count(sys.maxsize)) (#127048)
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Commits on Nov 12, 2024
gh-126595: fix a crash when calling `itertools.count(sys.maxsize)` (#126617)
picnixz
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Commits on Sep 25, 2024
gh-123884 Tee of tee was not producing n independent iterators (gh-124490)
rhettinger
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909c6f7
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Commits on May 21, 2024
gh-117657: Fix itertools.count thread safety (#119268)
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wiggin15
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Commits on May 9, 2024
GH-101588: Remove deprecated pickle/copy/deepcopy from itertools (gh-118816)
rhettinger
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Commits on May 3, 2024
gh-116322: Add Py_mod_gil module slot (#116882)
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Commits on Apr 30, 2024
gh-118218: Reuse return tuple in itertools.pairwise (GH-118219)
hauntsaninja
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Commits on Apr 12, 2024
gh-117764: Add signatures for some objects in the itertools module (GH-117774)
serhiy-storchaka
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49af71a
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Commits on Mar 18, 2024
gh-115874: Don't use module state in teedataobject tp_dealloc (#116204)
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brandtbucher
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Commits on Mar 4, 2024
Consistently spell out *predicate* instead of *pred*. (gh-116308)
rhettinger
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15dc297
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Commits on Dec 16, 2023
gh-113202: Add a strict option to itertools.batched() (gh-113203)
rhettinger
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