Core Development

Steering Council Nominations Nominations for the Python Steering Council election. C API This sub-category is for discussions specifically about the Python C API. Covers both the development of as well as the development with (usage of) the C API.

Topic	Replies	Views	Activity
About the Core Development category Core Development	1	2959	October 4, 2023
PyLongObject: just use GMP? Core Development	52	1896	April 1, 2026
Python install manager 26.0 Core Development release	6	827	March 31, 2026
Stable ABI for PyCriticalSection C API	32	1091	March 31, 2026
Let tools know when tracing/profiling is enabled/disabled C API	5	476	March 30, 2026
Add a contextvars.ContextVar.get_changed() method C API	1	175	March 30, 2026
Python on Windows ARM64 Core Development	19	1410	March 30, 2026
Consider increasing the growth factor of list objects Core Development	43	1132	March 25, 2026
O(N²) compile-time regression for large constant tuples after const folding moved to CFG Core Development	1	376	March 25, 2026
Python 3.13.4, 3.12.11, 3.11.13, 3.10.18 and 3.9.23 are now available! Core Development release	16	3440	March 24, 2026
Concerns about `-X lazy_imports=none` Core Development	73	1145	March 24, 2026
Soft-deprecating `ctypes.util.find_library` Core Development	13	722	March 23, 2026
CLA Bot and AI Agents? Core Development github , ci	7	327	March 22, 2026
Allow beta UCD files to be used in the future? Core Development	2	193	March 21, 2026
~bool deprecation Core Development	127	6481	March 20, 2026
`http` expert/reviewer needed for PR 133276 (gh-42550: Add 'Expect: 100-Continue' support to httplib) Core Development	1	250	March 18, 2026
Defining a support policy on overlapping installations Core Development	10	664	March 17, 2026
Python 3.15.0 alpha 7 Core Development release	8	1032	March 16, 2026
CPython codebase growth Core Development	4	637	March 11, 2026
Dropping Intel Mac to Tier 2 Core Development	20	1494	March 6, 2026
Python 3.12.13, 3.11.15 and 3.10.20 are now available! Core Development release	4	1702	March 5, 2026
Right-to-left characters in repr Core Development	18	920	March 5, 2026
PR review: Properly update closure cells for __setattr__ and __detattr__ in frozen dataclasses with slots Core Development review-request	0	112	March 1, 2026
Request for PyModule_GetModuleByDef() Core Development	10	302	February 28, 2026
Should `frozendict` be added to Argument Clinic? Core Development	2	386	February 23, 2026
`None` as index Core Development	10	1736	February 21, 2026
Real world impediments through ~bool deprecation Core Development	6	456	February 17, 2026
Python 3.15.0 alpha 6 Core Development release	6	678	February 17, 2026
Backporting support for `wave` formats Core Development	18	1223	February 15, 2026
Review request for gh-138912: Improve MATCH_CLASS opcode performance Core Development	1	311	February 14, 2026