Method bool_op

lib/sqlalchemy/sql/operators.py:400–425

Return a custom boolean operator. This method is shorthand for calling :meth:`.Operators.op` and passing the :paramref:`.Operators.op.is_comparison` flag with True. A key advantage to using :meth:`.Operators.bool_op` is that when using column constructs, t

(
        self,
        opstring: str,
        precedence: int = 0,
        python_impl: Optional[Callable[..., Any]] = None,
    )

        return against

    def bool_op(
        self,
        opstring: str,
        precedence: int = 0,
        python_impl: Optional[Callable[..., Any]] = None,
    ) -> Callable[[Any], Operators]:
        """Return a custom boolean operator.

        This method is shorthand for calling
        :meth:`.Operators.op` and passing the
        :paramref:`.Operators.op.is_comparison`
        flag with True.    A key advantage to using :meth:`.Operators.bool_op`
        is that when using column constructs, the "boolean" nature of the
        returned expression will be present for :pep:`484` purposes.

        .. seealso::

            :meth:`.Operators.op`

        """
        return self.op(
            opstring,
            precedence=precedence,
            is_comparison=True,
            python_impl=python_impl,
        )

    def operate(
        self, op: OperatorType, *other: Any, **kwargs: Any