Show threadHugo van KemenadeMar 10

🐍🚀 Out now: Python 3.15 alpha 7!

This is the first one with lazy imports (PEP 810) and frozendict (PEP 814)! Try it out and give us feedback.

https://discuss.python.org/t/python-3-15-0-alpha-7/106475

☃️ Just one alpha left until the feature freeze! Core team: get your PEPs in!

#Python #Python315 #release PEP810 #LazyImports #PEP814 #frozendict

Python 3.15.0 alpha 7

This is an early developer preview of Python 3.15 Major new features of the 3.15 series, compared to 3.14 Python 3.15 is still in development. This release, 3.15.0a7, is the seventh of eight planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. During the alpha phase, features may be added up until the start of the beta phase (2026-05-05) and, if necessary, may be modified or deleted up ...

Discussions on Python.org
TechLİfeMar 8

The Story of Python's Lazy Imports: Why It Took Three Years and Two Attempts

https://techlife.blog/posts/the-story-of-pythons-lazy-imports-why-it-took-three-years-and-two-attempts/

#Python #PEP810 #LazyImports #CPython #Performance #SoftwareEngineering #MetaCinder #Python315 #StartupTime #TechnicalDeepDive

The Story of Python's Lazy Imports: Why It Took Three Years and Two Attempts

From PEP 690's rejection to PEP 810's unanimous acceptance — how Python finally got explicit lazy imports after three years of real-world production evidence and a fundamental design inversion

TechLife
slackline :emacs: :orgmode:Nov 3

Lazy imports are coming to Python :tada:

PEP 810: Explicit lazy imports - PEPs - Discussions on Python.org
https://discuss.python.org/t/pep-810-explicit-lazy-imports/104131/466

#python #pep810 #lazyimports

PEP 810: Explicit lazy imports

Dear PEP 810 authors. The Steering Council is happy to unanimously[1] accept “PEP 810, Explicit lazy imports”. Congratulations! We appreciate the way you were able to build on and improve the previously discussed (and rejected) attempt at lazy imports as proposed in PEP 690. We have recommendations about some of the PEP’s details, a few suggestions for filling a couple of small gaps, and we have made decisions on the alternatives that you’ve left to the SC, all of which I’ll outline below. ...

Discussions on Python.org
Hugo van KemenadeNov 3

The Steering Council has accepted PEP 810 (explicit lazy imports) for Python 3.15!

https://discuss.python.org/t/pep-810-explicit-lazy-imports/104131/466

#Python #PEP810 #LazyImports #lazy #Python315

PEP 810: Explicit lazy imports

Dear PEP 810 authors. The Steering Council is happy to unanimously[1] accept “PEP 810, Explicit lazy imports”. Congratulations! We appreciate the way you were able to build on and improve the previously discussed (and rejected) attempt at lazy imports as proposed in PEP 690. We have recommendations about some of the PEP’s details, a few suggestions for filling a couple of small gaps, and we have made decisions on the alternatives that you’ve left to the SC, all of which I’ll outline below. ...

Discussions on Python.org
Hugo van KemenadeOct 19, 2025

I benchmarked `--help` on one of my CLIs with the reference implementation for PEP 810 (Explicit lazy imports).

Because my CLI already does the "inline imports" thing of moving them into functions just before they get used, I got a speedup of x1.3.

Then I moved all the imports to the top like normal, and got a speedup of x2.9!

https://hugovk.dev/blog/2025/lazy-imports/
#Python #Python315 #PEP810 #LazyImports #lazy

Three times faster with lazy imports

Hugo van Kemenade