More convenient syntax for SimpleNamespace instances creation.

namespace.py

from types import SimpleNamespace
from typing import Any

__all__ = "NamespaceMeta", "Namespace"


class NamespaceMeta(type):
    """Provides namespacing infrastructure.
    This metaclass provides an alternative (and hopefully more convenient) syntax for creating 'types.SimpleNamespace'
    instances using 'class' syntax.
    >>> class Events(metaclass=NamespaceMeta):
    ...     class A:
    ...         f: int
    ...
    ...     class B:
    ...         f: str
    >>> isinstance(Events, SimpleNamespace)
    True
    """
    def __new__(mcs, name: str, bases: tuple[type], namespace: dict[str, Any]):
        if name == "Namespace" and namespace.get("__module__", None) == __name__:
            return super().__new__(mcs, name, bases, namespace)
        return SimpleNamespace(**namespace)


class Namespace(metaclass=NamespaceMeta):
    pass