I wish python had a clean way to define types without defining classes. Think a _good_ mechanism to define the shape of data contained within primitives/builtins containers without classes -- ala json/typescript (ideally extended with ndarray and a sane way to represent time)
Python classes wrapped around the actual "data" are sometimes necessary but generally always bad boilerplate in my experience.
dataclasses are pretty much that. They use the class mechanism but they're culturally accepted now as a clean way to build the equivalent of structs.
And e.g. you can add dataclasses-json for JSON serializability: https://pypi.org/project/dataclasses-json/
Genuinely curious: why?
• Product type
• Reference semantics
• Namespacing
• Pipeline-style call syntax
• Redefinition of infix operators
• Dynamic dispatch
• Subtyping
For example, you cannot have a product type with value semantics or a type that redefines infix operators but is not a product type.