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Python Programming Learning Circle
Python Programming Learning Circle
Dec 5, 2024 · Fundamentals

New Typing Features in Python 3.13: ReadOnly, @warnings.deprecated, TypeIs, is_protocol, get_protocol_members, Default TypeVars, NoDefault, and Performance Improvements

Python 3.13 introduces a suite of typing enhancements—including a ReadOnly type for TypedDict, a @warnings.deprecated decorator, the TypeIs construct, is_protocol and get_protocol_members utilities, default TypeVar support with has_default(), the NoDefault sentinel, and several performance and API clean‑ups—providing developers with more expressive and efficient static type checking capabilities.

Python 3.13ReadOnlyTypeVar
0 likes · 8 min read
New Typing Features in Python 3.13: ReadOnly, @warnings.deprecated, TypeIs, is_protocol, get_protocol_members, Default TypeVars, NoDefault, and Performance Improvements
Python Programming Learning Circle
Python Programming Learning Circle
Oct 18, 2024 · Fundamentals

New Typing Features in Python 3.13: ReadOnly, @warnings.deprecated, TypeIs, is_protocol, get_protocol_members, Default Types, NoDefault and Performance Improvements

Python 3.13 introduces several typing enhancements—including a ReadOnly type for TypedDict, a @warnings.deprecated decorator, the TypeIs narrowing helper, is_protocol and get_protocol_members utilities, default type support for TypeVar/ParamSpec/TypeVarTuple, the NoDefault sentinel, and notable performance gains by removing legacy typing namespaces.

PythonPython3.13ReadOnly
0 likes · 8 min read
New Typing Features in Python 3.13: ReadOnly, @warnings.deprecated, TypeIs, is_protocol, get_protocol_members, Default Types, NoDefault and Performance Improvements
Python Programming Learning Circle
Python Programming Learning Circle
Oct 16, 2024 · Fundamentals

New Typing Features in Python 3.13: ReadOnly, @warnings.deprecated, TypeIs, is_protocol, get_protocol_members, Default TypeVars, NoDefault and Performance Improvements

Python 3.13 adds seven new typing enhancements—including ReadOnly TypedDict fields, a @warnings.deprecated decorator, TypeIs for type narrowing, is_protocol and get_protocol_members utilities, default TypeVar support, the NoDefault sentinel, and import‑time optimizations—each illustrated with code examples.

PythonPython 3.13ReadOnly
0 likes · 7 min read
New Typing Features in Python 3.13: ReadOnly, @warnings.deprecated, TypeIs, is_protocol, get_protocol_members, Default TypeVars, NoDefault and Performance Improvements