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Pull requests: python/cpython
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gh-144809: Make deque copy atomic in free-threaded build
awaiting core review
needs backport to 3.14
bugs and security fixes
topic-free-threading
#144966
opened Feb 18, 2026 by
colesbury
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[3.14] gh-144763: Fix race conditions in tracemalloc (#144779)
awaiting core review
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#144965
opened Feb 18, 2026 by
vstinner
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gh-141984: Split Parenthesized form docs into "groups" and "tuple displays"
awaiting core review
docs
Documentation in the Doc dir
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#144964
opened Feb 18, 2026 by
encukou
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gh-134584 : Optimize and eliminate redundant ref-counting for
MAKE_FUNCTION in the JIT
awaiting review
#144963
opened Feb 18, 2026 by
Sacul0457
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gh-141510: Update Whats News for frozendict
docs
Documentation in the Doc dir
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#144961
opened Feb 18, 2026 by
corona10
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GH-144651: Optimize the new uops added when recording values during tracing.
awaiting core review
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#144948
opened Feb 18, 2026 by
markshannon
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gh-92810: Cover ABCMeta instancecheck/subclasscheck with more tests
awaiting review
tests
Tests in the Lib/test dir
#144941
opened Feb 18, 2026 by
dolfinus
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gh-144749: Default value check for descriptors in dataclass
awaiting review
#144940
opened Feb 17, 2026 by
bkap123
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gh-141510, PEP 814: Add frozendict support to pickle
awaiting core review
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#144936
opened Feb 17, 2026 by
vstinner
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gh-144319: obtain SeLockMemoryPrivilege on Windows
awaiting review
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#144928
opened Feb 17, 2026 by
chris-eibl
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[3.14] gh-144438: Fix false sharing between QSBR and tlbc_index (gh-144554)
awaiting core review
#144923
opened Feb 17, 2026 by
colesbury
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gh-131178: Add tests for cProfile command-line interface
awaiting review
tests
Tests in the Lib/test dir
#144918
opened Feb 17, 2026 by
NekoAsakura
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[3.13] gh-129259: Fix AIX build failures caused by incorrect struct alignment
awaiting review
#144917
opened Feb 17, 2026 by
rsmkaminskas
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gh-141510: Use frozendict in the _opcode_metadata
awaiting core review
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#144910
opened Feb 17, 2026 by
vstinner
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gh-141510: Use frozendict in the stdlib
awaiting merge
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#144909
opened Feb 17, 2026 by
vstinner
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gh-141510: Support frozendict in pprint
awaiting core review
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#144908
opened Feb 17, 2026 by
vstinner
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gh-141510: Use frozendict for errno.errorcode
awaiting core review
#144906
opened Feb 17, 2026 by
vstinner
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gh-141510: Replace MappingProxyType with frozendict
awaiting merge
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#144904
opened Feb 17, 2026 by
vstinner
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gh-141510, PEP 814: Add frozendict support to json
awaiting core review
#144903
opened Feb 17, 2026 by
vstinner
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gh-140715: Add %t format code support to strptime()
awaiting review
#144896
opened Feb 17, 2026 by
jyalim
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gh-144884: Restructure re.sub docs, clarify aspects of Documentation in the Doc dir
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repl notation
awaiting review
docs
#144891
opened Feb 16, 2026 by
cben
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gh-132657: Improve performance in specialize_dict_access_hint() via adding specialization for PY_GIL_DISABLED
awaiting review
#144886
opened Feb 16, 2026 by
benediktjohannes
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gh-142927: Detect system theme in flame graph like in heatmap
awaiting merge
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#144885
opened Feb 16, 2026 by
hugovk
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gh-144384: Improve
_colorize performance by replacing dataclass with regular class
awaiting core review
DO-NOT-MERGE
#144879
opened Feb 16, 2026 by
hugovk
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What’s not been updated in a month: updated:<2026-01-18.