from typing import Generic, TypeVar T = TypeVar("T", default=str) class Box(Generic[T]): def __init__(self, content: T): self.content = content # Defaults to Box[str] default_box = Box("Hello") Use code with caution. The @deprecated Decorator (PEP 702)
The official release notes for confirm that this version is one of the most transformative updates in the history of the language. This milestone release shifts Python’s focus toward advanced multi-threaded performance, modern terminal usability, and a leaner core standard library.
from typing import TypedDict, ReadOnly
Typing help directly in the REPL is more intuitive. 4. Significant Library and Language Changes
The minimum supported version has been raised from 10.9 to 10.13 (High Sierra). Older macOS versions will not receive future Python updates. python 313 release notes verified
– You can now specify a default type for a TypeVar :
Python 3.13 Release Notes Verified: A Deep Dive into the Future of Python from typing import Generic, TypeVar T = TypeVar("T",
Table of Contents * Summary – Release Highlights. * New Features. A better interactive interpreter. Improved error messages. Free- Python documentation Python Release Python 3.13.0
Python 3.13 takes code debugging further by offering natively. If a token is misspelled, or an assignment falls out of local visibility scopes, the tracebacks actively guide developers toward matching variables or valid functions directly inside the terminal UI. Local Scoping Semantics (PEP 667) from typing import TypedDict, ReadOnly Typing help directly