Here comes the antepenultimate beta. This is a beta preview of Python 3.15 Python 3.15 is still in development. This release, 3.15.0b2, is the second of four planned beta releases. Beta release p...

A special release candidate with a new (old) garbage collector.

The Python Steering Council is happy to accept PEP 772, establishing a Python Packaging Council with broad delegated authority over packaging standards, tools, and implementations. This is the final ...

Python 3.14 shipped with a new incremental garbage collector. However, we’ve had a number of reports of significant memory pressure in production environments. We’ve decided to revert it in both…

ty is an extremely fast Python type checker and language server, written in Rust, and designed as an alternative to mypy, Pyright, and Pylance.

The 3.14 branch is now locked for all (except release managers and admins) until the 3.14.0 final release (scheduled for 2025-10-07). Reminder from the devguide: A branch preparing for an RC releas...

Security Service continued to provide misleading evidence even after its lie was exposed, BBC can reveal.

Penniless and homeless, the Winns found fame and fortune with the story of their 630-mile walk to salvation. We can reveal that the truth behind it is ve...

A deep dive into Meta's pyrefly and Astral's ty - two new Rust-based Python type checkers that both promise faster performance and better type inference.

Thank you all for the kind words and support! I’m truly honoured — and honestly a bit overwhelmed — to be joining the CPython core team. I’ve learned so much from this community, and I’m incredibly ...

RustWeek 2025, The Netherlands - May 13 - 17 2025

This server is meant for discussions around and help with supporting free-threaded Python (https://peps.python.org/pep-0703/) in Python libraries. For more information see https://docs.python.org/3/ho...

PyPy v7.3.18: release of python 2.7, 3.10 and 3.11 beta The PyPy team is proud to release version 7.3.18 of PyPy. This release includes a python 3.11 interpreter. We are labelling it "beta" because it

Features: Significantly better performance on all 64-bit platforms that we care about. Better debugging experience, locals don't get optimized out anymore in tail call handlers. If you want to...

The new 2025 formatter style guide, rule stabilizations, and more

Since the 1970s, Humphrey Smith has acquired scores of pubs and historic properties around the UK. But time after time, he has left the buildings empty. Why has he allowed his empire to moulder?