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All bases of a protocol must be protocols- is typing.MutableMapping not a Protocol?

The Protocol Conundrum Why typing Mutable Mapping Isnt a Protocol and What It Means for You In the world of Python where code clarity and flexibility reign supr

2 min read 05-10-2024 43
All bases of a protocol must be protocols- is typing.MutableMapping not a Protocol?
All bases of a protocol must be protocols- is typing.MutableMapping not a Protocol?

Specifying additional subclassed bounds of a TypeVar in Python typing

Specifying Subclassed Bounds for Type Vars in Python Typing A Guide When working with type hints and generic classes in Python you might encounter scenarios whe

2 min read 04-09-2024 34
Specifying additional subclassed bounds of a TypeVar in Python typing
Specifying additional subclassed bounds of a TypeVar in Python typing

How to use __subclasshook__ with Mypy?

Understanding subclasshook with Mypy The use of subclasshook in Python allows classes to define custom logic for checking if a class is a subclass This can be p

2 min read 04-09-2024 40
How to use __subclasshook__ with Mypy?
How to use __subclasshook__ with Mypy?

How to deal with Optional[int] in Protocol classes

Mastering Optional int in Python Protocols A Practical Guide Protocols in Python introduced in version 3 8 offer a powerful way to define contracts for objects

3 min read 03-09-2024 43
How to deal with Optional[int] in Protocol classes
How to deal with Optional[int] in Protocol classes