Method from_field

pydantic/fields.py:291–316

Create a new `FieldInfo` object with the `Field` function. Args: default: The default value for the field. Defaults to Undefined. **kwargs: Additional arguments dictionary. Raises: TypeError: If 'annotation' is passed as a keyword argument.

(default: Any = PydanticUndefined, **kwargs: Unpack[_FromFieldInfoInputs])

    @staticmethod
    def from_field(default: Any = PydanticUndefined, **kwargs: Unpack[_FromFieldInfoInputs]) -> FieldInfo:
        """Create a new `FieldInfo` object with the `Field` function.

        Args:
            default: The default value for the field. Defaults to Undefined.
            **kwargs: Additional arguments dictionary.

        Raises:
            TypeError: If 'annotation' is passed as a keyword argument.

        Returns:
            A new FieldInfo object with the given parameters.

        Example:
            This is how you can create a field with default value like this:

            ```python
            import pydantic

            class MyModel(pydantic.BaseModel):
                foo: int = pydantic.Field(4)
            ```
        """
        if 'annotation' in kwargs:
            raise TypeError('"annotation" is not permitted as a Field keyword argument')
        return FieldInfo(default=default, **kwargs)

    @staticmethod
    def from_annotation(annotation: type[Any], *, _source: AnnotationSource = AnnotationSource.ANY) -> FieldInfo: