Python 3.15 released: Lazy imports, UTF-8 and new data types

Python 3.15 is expected to speed up some programs and simplifies handling immutable data. UTF-8 as standard requires testing.
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Python 3.15 arrives with lazy imports, UTF-8 by default and a faster JIT

Python 3.15 is out with explicit lazy imports, UTF-8 as the default encoding, frozendict and sentinel types, the Tachyon ...
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A Practical Guide to Faster Data Processing with Polars

Overview: Polars pairs a Rust engine with column-based storage and multi-core execution to cut wasted work in Python ...
LWN.net

Lazy imports for Python

Starting a Python application typically results in a flurry of imports as modules from various locations (and the modules they import) get added into the application process. All of that occurs before ...
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Python slithers faster by adding lazy imports that load code after startup

Python programs are set to get faster startup times with PEP 810 "Explicit lazy imports," which allows scripts to defer loading imported libraries until they're actually needed rather than at startup.
LWN.net

Disabling Python's lazy imports from the command line

The advent of lazy imports in the Python language is upon us, now that PEP 810 ("Explicit lazy imports") was accepted by the steering council and the feature will appear in the upcoming Python 3.15 ...

「Python 3.15」が正式公開 ～UTF-8が標準に、“番兵値”などの新しい言語機能も

スクリプト言語「Python」の新しい年次リリース「Python 3.15」が、10月9日（現地時間）に正式リリースされた。「Python ...

Python 3.15 erschienen: Faule Importe, UTF-8 und neue Datentypen

Python 3.15 soll manche Programme schneller starten lassen und vereinfacht den Umgang mit unveränderlichen Daten. UTF-8 als ...

Python 3.15 lançado com imports lazy, UTF-8 padrão e compilador JIT mais rápido

A nível de estrutura, o Python 3.15 adiciona três novos tipos integrados à linguagem. O destaque vai para o frozendict, que ...

Python 3.15来了！AI开发者狂喜：懒加载、frozendict、Tachyon采样器全上线

2026年10月9日，Python 3.15.0正式版将如约而至——这不是一次小修小补的版本迭代，而是一场专为AI时代量身定制的‘系统级优化’。从冷启动慢得像煮泡面的智能体CLI，到异步任务里永远抓不到的‘卡点’，再到模型返回null和字段缺失傻傻分不清的深夜debug现场……Python 3.15用一整套‘反直觉但超顺手’的新特性，悄悄把开发者从多年绕弯路的惯性中一把拽了出来。 没错，你没看错— ...