Python 313 Release Notes Verified //top\\ Official

from typing import TypedDict, ReadOnly

The default interactive shell has been completely overhauled, based on code from the PyPy project. It now offers features previously only available in third-party tools: python 313 release notes verified

One of the most immediate changes in 3.13 is a completely rewritten . Inspired by the PyPy project, it offers features that previously required external packages like IPython . from typing import TypedDict

class Movie(TypedDict): title: ReadOnly[str] # Cannot be reassigned year: int python 313 release notes verified