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	3001	October 4, 2023
Reverting the incremental GC in Python 3.14 and 3.15 Core Development release	54	21758	May 13, 2026
Python 3.14.5 is here, with a new (old) garbage collector! Core Development release	7	636	May 12, 2026
Pre-PEP discussion: revival of PEP 543 - A Unified TLS API for Python Core Development pep	86	7221	May 12, 2026
Building the JIT with pre-built stencils Core Development build	19	1939	May 12, 2026
Should we set CFLAGS_JIT in Fedora? Core Development build	5	508	May 12, 2026
Python install manager 26.2 Core Development release	1	232	May 11, 2026
C API: Add `Py_GetBuildInType` and `Py_GetBuildInTypeBorrowed` C API	15	461	May 11, 2026
~bool deprecation Core Development	129	7337	May 11, 2026
Python.org macOS installer users of tkinter: Python 3.14 with Tcl/Tk 9.0.3 instead of 8.6.17? Core Development release	1	188	May 10, 2026
Python 3.15.0 beta 1 is here! Core Development release	2	858	May 8, 2026
Python 3.14.5 release candidate Core Development release	2	507	May 6, 2026
Choice of complex buffer protocol format intentional break with PEP? Core Development	85	1874	May 6, 2026
Improving incremental gc Core Development	32	2263	May 5, 2026
Deprecate float.__getformat__()? Core Development	2	277	May 5, 2026
Recursive structures in marshal Core Development	0	155	May 4, 2026
Place for XML helper functions Core Development	11	494	April 30, 2026
Symlink resolution in starting script path Core Development	27	5062	April 28, 2026
Isort and ruff now support sorting PEP 810 (lazy) imports Core Development	1	401	April 24, 2026
About `defaultdict.__missing__` Core Development	17	841	April 22, 2026
Python on Windows ARM64 Core Development	20	1798	April 17, 2026
Concern about maintenance state of `libexpat`? Core Development	0	247	April 16, 2026
Allow beta UCD files to be used in the future? Core Development	6	389	April 14, 2026
Three Weeks to Beta 1! Core Development	4	385	April 14, 2026
Consider increasing the growth factor of list objects Core Development	74	2423	April 14, 2026
PR review: Properly update closure cells for __setattr__ and __detattr__ in frozen dataclasses with slots Core Development review-request	1	214	April 12, 2026
Python install manager 26.0 Core Development release	8	1220	April 11, 2026
PyLongObject: just use GMP? Core Development	67	2847	April 11, 2026
Python 3.15.0a8, 3.14.4 and 3.13.13 are now available! Core Development release	9	617	April 9, 2026
Rust for CPython Progress Update April 2026 Core Development	0	1099	April 8, 2026