python-typing

Python generics: wrapping generic functions without losing type variables (mypy/pyright guide)

Nov. 26, 11:00

Fixing Pyright Dataclass Type Errors in Python with Data-Descriptors: Overloaded __get__, __set__

Nov. 23, 17:00

Fixing Pyright override errors caused by decorators: PEP 612 Concatenate and positional-only params

Nov. 22, 19:00

Pyright in VS Code: Typing Dynamic Attributes with Asymmetric Properties and the Any Union

Nov. 22, 01:00

Python 3.12: Typing a Factory That Preserves Subclass Constructor Signatures with ParamSpec

Nov. 20, 11:00

Typing **kwargs in Python: Pylance/pyright dict-unpacking errors and TypedDict extra_items

Nov. 19, 13:00

Python typing pitfalls: Why type[Any] doesn’t mean the Any class and breaks class unions

Nov. 17, 13:00

Typing Python callables with positional-only and keyword-only params: use Protocol, not Callable

Nov. 17, 03:00

Python Metaclass Validation for Wrappers: Infer Type via __orig_bases__ to Enforce API Parity

Nov. 16, 19:00

Python typing with Pylance: make keyword-only args feel optional via decorator, overloads, Protocol

Nov. 15, 05:00

Covariance vs Contravariance in Python: Why Unions with Covariant TypeVars Fool Type Checkers

Nov. 9, 03:00

Typing a Python Factory for Algorithms: Handling List Invariance, Protocols, and Overloads

Nov. 6, 05:00

Python 3.12 Variance Inference in Generics: Fixing Invariance with Private Storage for Read-Only

Nov. 3, 11:00

Python Protocols: How to Define a Read-Only Class Variable (Enum) with ClassVar and ReadOnly

Nov. 2, 15:00

Python static typing: descriptors with overloads for different class vs instance attribute types

Oct. 31, 23:00

Python typing: map raw to processed types with generic Protocol, not dicts, for precise return types

Oct. 30, 09:00

Why mypy ignores membership tests for Literal narrowing in Python (and what to do instead)

Oct. 26, 01:00

Python Type Aliases from Class Annotations: Fixing AttributeError for Instance Fields

Oct. 20, 11:00

mypy 1.16, Python 3.11: union-type list concatenation passes as expression but fails on return

Oct. 20, 03:00

Fixing Python Generic Union Bounds: Pylance Errors and Safe Constrained Generics (Pyright, mypy)

Oct. 19, 03:00

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