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Pull requests: python/cpython
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[3.15] gh-132467: Document and test that generic aliases are not classes (GH-133504)
awaiting review
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#150854
opened Jun 3, 2026 by
miss-islington
Contributor
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[3.15] Correct Stable ABI documentation for METH_FASTCALL (GH-149593)
awaiting review
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#150853
opened Jun 3, 2026 by
miss-islington
Contributor
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[3.14] Correct Stable ABI documentation for METH_FASTCALL (GH-149593)
awaiting review
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#150852
opened Jun 3, 2026 by
miss-islington
Contributor
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[3.13] Correct Stable ABI documentation for METH_FASTCALL (GH-149593)
awaiting review
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#150851
opened Jun 3, 2026 by
miss-islington
Contributor
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gh-150662: Stop unbounded memory growth in Tachyon
--gecko collector
awaiting review
#150845
opened Jun 3, 2026 by
maurycy
Contributor
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[3.15] gh-146636: Add Free-threaded Stable ABI migration guide (GH-150580)
awaiting review
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#150844
opened Jun 3, 2026 by
miss-islington
Contributor
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[3.12] gh-149079: Fix O(n^2) canonical ordering in unicodedata.normalize() (GH-149080)
awaiting core review
topic-unicode
type-security
A security issue
#150843
opened Jun 3, 2026 by
encukou
Member
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[3.15] gh-148613: Fix race in
gc_set_threshold and gc_get_threshold (GH-150356)
awaiting merge
topic-free-threading
#150841
opened Jun 3, 2026 by
miss-islington
Contributor
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gh-148467: Move BufferedIOBase close to concrete implementations
awaiting core review
docs
Documentation in the Doc dir
needs backport to 3.13
bugs and security fixes
needs backport to 3.14
bugs and security fixes
needs backport to 3.15
pre-release feature fixes, bugs and security fixes
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#150838
opened Jun 3, 2026 by
serhiy-storchaka
Member
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Add warning to Thread.run() docstring so that users are aware Thread.start() is the correct way to start a thread
awaiting changes
#150833
opened Jun 3, 2026 by
radiantsb
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gh-150821: Skip URL parsing in mimetypes.guess_type() for file paths
awaiting review
#150828
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150820: Speed up json.loads() and json.dumps() for small documents
awaiting review
#150827
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150819: Cache ConfigParser converter names per class
awaiting review
#150826
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150818: Speed up logging.getLogger() for existing loggers
awaiting review
#150825
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150817: Speed up Flag bitwise operations
awaiting merge
#150824
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150816: Speed up inspect.signature() for Python functions
awaiting merge
#150823
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150815: Speed up copy.deepcopy() of containers with atomic elements
awaiting review
#150822
opened Jun 2, 2026 by
gaborbernat
Contributor
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gh-150737: Optimize bytecode for leading null unpack cases such as the
ast.unparse empty set representation.
awaiting review
#150812
opened Jun 2, 2026 by
gesslerpd
Contributor
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gh-58370 Document and test frozendict class matching behaviour
awaiting review
tests
Tests in the Lib/test dir
#150799
opened Jun 2, 2026 by
da-woods
Contributor
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gh-111783: Add a warning for reopening files by name to Documentation in the Doc dir
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NamedTemporaryFile
awaiting core review
docs
#150793
opened Jun 2, 2026 by
StanFromIreland
Member
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gh-150791: add critical section for
groupby.next
#150792
opened Jun 2, 2026 by
KowalskiThomas
Contributor
•
Draft
Docs: Clarify that Documentation in the Doc dir
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-I is not a security boundary
awaiting core review
docs
#150790
opened Jun 2, 2026 by
StanFromIreland
Member
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gh-149079: Optimize sorting in unicodedata.normalize()
awaiting core review
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#150782
opened Jun 2, 2026 by
serhiy-storchaka
Member
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gh-150750: Fix a race condition in
deque.index with free-threading
awaiting merge
#150779
opened Jun 2, 2026 by
sobolevn
Member
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gh-138949: Fix non-generic children of generic TypedDicts with future annotations
awaiting core review
#150762
opened Jun 2, 2026 by
sobolevn
Member
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Updated in the last three days: updated:>2026-05-31.