Class CFloat

traitlets/traitlets.py:2784–2829

A casting version of the float trait.

class CFloat(Float[G, S]):
    """A casting version of the float trait."""

    if t.TYPE_CHECKING:

        @t.overload
        def __init__(
            self: CFloat[float, t.Any],
            default_value: t.Any = ...,
            allow_none: Literal[False] = ...,
            read_only: bool | None = ...,
            help: str | None = ...,
            config: t.Any | None = ...,
            **kwargs: t.Any,
        ) -> None:
            ...

        @t.overload
        def __init__(
            self: CFloat[float | None, t.Any],
            default_value: t.Any = ...,
            allow_none: Literal[True] = ...,
            read_only: bool | None = ...,
            help: str | None = ...,
            config: t.Any | None = ...,
            **kwargs: t.Any,
        ) -> None:
            ...

        def __init__(
            self: CFloat[float | None, t.Any],
            default_value: t.Any = ...,
            allow_none: bool = ...,
            read_only: bool | None = ...,
            help: str | None = ...,
            config: t.Any | None = ...,
            **kwargs: t.Any,
        ) -> None:
            ...

    def validate(self, obj: t.Any, value: t.Any) -> G:
        try:
            value = float(value)
        except Exception:
            self.error(obj, value)
        return _validate_bounds(self, obj, value)  # type:ignore[no-any-return]


class Complex(TraitType[complex, t.Union[complex, float, int]]):