def __rand__(self, other ):
        """Implementation of & operator when left operand is not a C{L{ParserElement}}"""
        if isinstance( other, basestring ):
            other = ParserElement.literalStringClass( other )
        if not isinstance( other, ParserElement ):
            warnings.warn("Cannot combine element of type %s with ParserElement" % type(other),
                    SyntaxWarning, stacklevel=2)
            return None
        return other & self
dataset/ETHPy150Open Exa-Networks/exabgp/lib/exabgp/dep/pyparsing.py/ParserElement.__rand__/original