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.
HackerNoon

How Shallow and Deep Copies Work in Python

I copied a Python dictionary, but the original still changed. Here's how shallow copies, shared references, and deep copies ...

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— ...

Python Learning Diary Day 60 - Handling None Returns When No Match Is Found

This article is a learning record for Python learners, and the posted code is a sample for educational purposes.What I did ...
HackerNoon

Why Python Dictionaries Crash When You Add or Delete Keys While Looping

Learn why Python raises "dictionary changed size during iteration," how it differs from list mutation, and three safe ways to ...

Designing 'Same Characters' in Unicode: Separating Original Text and Search Keys in Python

The name looks the same on the screen, but I can't search for it.' If you try to fix this problem just by removing whitespace ...
linuxiac

Python 3.15 Released with Faster JIT, Lazy Imports, and UTF-8 by Default

Python 3.15 introduces lazy imports, UTF-8 as the default encoding, faster experimental JIT performance, and new profiling ...