Function _subclass_of

src/attr/validators.py:617–631

A validator that raises a `TypeError` if the initializer is called with a wrong type for this particular attribute (checks are performed using `issubclass` therefore it's also valid to pass a tuple of types). Args: type (type | tuple[type, ...]): The type(s) to check for.

(type)

def _subclass_of(type):
    """
    A validator that raises a `TypeError` if the initializer is called with a
    wrong type for this particular attribute (checks are performed using
    `issubclass` therefore it's also valid to pass a tuple of types).

    Args:
        type (type | tuple[type, ...]): The type(s) to check for.

    Raises:
        TypeError:
            With a human readable error message, the attribute (of type
            `attrs.Attribute`), the expected type, and the value it got.
    """
    return _SubclassOfValidator(type)


@attrs(repr=False, slots=True, unsafe_hash=True)