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.

Identifying standard library APIs removed in Python 3.15 from your code using AST—502 public name differences and a comparison with ruff, pyupgrade, an…

Python 3.15.0 was released on October 9, 2026. The "Removed" section of the official "What's New in Python 3.15" document ...
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 ...
LWN.net

Explicit lazy imports for Python

Importing modules in Python is ubiquitous; most Python programs start with at least a few import statements. But the performance impact of those imports can be large—and may be entirely wasted effort ...
BetaNews

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 ...
XboxDev

Python 3.15: Lazy Imports, UTF-8 und neues Profiling

Python 3.15 bringt explizite Lazy Imports, UTF-8 als Standard und neues Sampling-Profiling. Bestehende Build- und ...

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 ...