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Commits on Aug 16, 2026
gh-154842: Reject repack() while a reading handle is open (GH-154843)
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fedonman
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gh-155477: Fix multiprocessing.Pool deadlock on close() with a buffersize imap (GH-155478)
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tonghuaroot
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gh-154196: Improve `AttributeError` messages from unresolved lazy imports (#154688)
johnslavik
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gh-148817: Fold long lists/sets of constant elements into constant tuples/frozensets (#149016)
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iritkatriel
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084230e
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gh-155717: skip `TMPDIR` writeability test if process user is root (#155891)
picnixz
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gh-155888: Fix asyncio writelines() hanging on an empty chunk (#155889)
deadlovelll
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gh-155717: use `spawn` as the default start method for read-only filesystems (#155827)
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picnixz
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gh-155389: Return bytes from _pyio.BytesIO.peek() (GH-155390)
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fedonman
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gh-155864: Keep the module's current screen in step with use_screen() (GH-155865)
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fedonman
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gh-154002: Do not wrap a constructor TypeError in pickle._Unpickler (GH-154003)
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fedonman
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gh-155860: Reject a detached window in panel.replace() (GH-155861)
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fedonman
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gh-129382: Match venv API symlink defaults to the CLI (#155759)
zanieb
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Commits on Aug 15, 2026
gh-155869: Fix data loss in dbm.dumb.reorganize() (GH-155872)
lkk7
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e3287f6
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gh-83869: tarfile: compute next header offset using pax size for sparse file (GH-18562)
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nitmir
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serhiy-storchaka
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gh-155430: fix `hmac.digest` bigmem test (#155431)
picnixz
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948fd7e
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gh-155319: Fix the source line of a warning issued with module_globals (GH-155320)
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serhiy-storchaka
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c92e2fd
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gh-155519: fix data-race for Context.ctx_vars (#155522)
nascheme
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9ee248c
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gh-155400: Fix deadlock with type_lock_prevent_release() (#155401)
nascheme
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50fcb91
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gh-155143: Fix asyncio.shield() leaking tasks via await-graph (#155144)
pteromys
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Commits on Aug 14, 2026
gh-155194: Fix not raising on non-module import (#155189)
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DinoV
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gh-155621: Fix unrepresentable defaults in socket.sendmsg() signature (#155623)
lpyu001
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e5556cd
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gh-135736: call exception handler for all BaseExceptions in asyncio.TaskGroup (#154538)
sreehariannam
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a7b2e1f
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improve test_copy_reduce and test_deepcopy_reduce coverage (#154182)
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tomasr8
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gh-155742: Test PyBytesWriter_FinishWithSize() with negative size (#155783)
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vstinner
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gh-153521: Preserve bytes message sets in imaplib (GH-153907)
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cuishuang
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gh-150449: Support negative steps in sqlite3.Blob slices (GH-150450)
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ever0de
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serhiy-storchaka
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gh-111331: Allow closing BytesIO with exported buffers (GH-155383)
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serhiy-storchaka
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gh-155752: Do not crash when GenericAlias parameters change during substitution (#155761)
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dariushoule
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gh-155727: Ignore internal imports in test_attribute_completion (GH-155730)
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serhiy-storchaka
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gh-155732: Join the terminated process in test_repr_lock (GH-155734)
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serhiy-storchaka
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gh-155726: Restore the sysconfig prefix cache in test_sysconfig (GH-155729)
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serhiy-storchaka
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gh-155702: Fix sqlite3.Blob slice assignment with a step (GH-155703)
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serhiy-storchaka
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Commits on Aug 13, 2026
gh-154566: Fix array.byteswap() corrupting 'Zd' arrays with more than one element (#154567)
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gh-152563, test_math: Enable fma test on musl 1.2.6 (#152564)
weixlu
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5ea3935
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gh-155731: Clean up files left by test_import (GH-155735)
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