Method logical_and

Lib/_pydecimal.py:3345–3363

Applies an 'and' operation between self and other's digits. Both self and other must be logical numbers.

(self, other, context=None)

        return opa, opb

    def logical_and(self, other, context=None):
        """Applies an 'and' operation between self and other's digits.

        Both self and other must be logical numbers.
        """
        if context is None:
            context = getcontext()

        other = _convert_other(other, raiseit=True)

        if not self._islogical() or not other._islogical():
            return context._raise_error(InvalidOperation)

        # fill to context.prec
        (opa, opb) = self._fill_logical(context, self._int, other._int)

        # make the operation, and clean starting zeroes
        result = "".join([str(int(a)&int(b)) for a,b in zip(opa,opb)])
        return _dec_from_triple(0, result.lstrip('0') or '0', 0)

    def logical_invert(self, context=None):
        """Invert all its digits.