Python — 313 Release Notes Verified _verified_

as the new default backend for creating database files via the Typing Improvements : Introduces typing.TypeIs

: Prompts and exception tracebacks are now colorized by default (manageable via the PYTHON_COLORS variable). python 313 release notes verified

| Area | Improvement | |------|--------------| | list.append | ~10% faster due to reduced reference counting | | json module | Parsing speed up by 15-20% | | asyncio | Task creation and scheduling ~30% faster | | compile() | Bytecode compilation cache improvements | as the new default backend for creating database

Tracebacks are now highlighted in color by default to help developers identify issues more quickly. Python 3

: Tracebacks are now more specific, such as suggesting the correct name if a wrong keyword argument is used.

Python 3.13, released on , is a transformative update focused on performance, concurrency, and developer ergonomics. It introduces landmark experimental features that lay the foundation for a "GIL-free" and faster future for CPython.

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