def parseScalar(self):
        """
        Parse a scalar - a terminal value such as a string or number, or
        an L{Expression} or L{Reference}.

        @return: the parsed scalar
        @rtype: any scalar
        @raise ConfigFormatError: if a syntax error is found.
        """
        lhs = self.parseTerm()
        tt = self.token[0]
        while [PLUS, MINUS] in tt:
            self.match(tt)
            rhs = self.parseTerm()
            lhs = Expression(tt, lhs, rhs)
            tt = self.token[0]
        return lhs
dataset/ETHPy150Open twitterdev/twitter-for-bigquery/libs/config.py/ConfigReader.parseScalar/swapped operands of `in`