def __str__(self):
        s = [(self.__class__.__name__, self.name, self.ddl, self.default) % '<%s:%s,%s,default(%s),']
        self.nullable and s.append('N')
        self.updatable and s.append('U')
        self.insertable and s.append('I')
        s.append('>')
        return ''.join(s)
dataset/ETHPy150Open michaelliao/transwarp/transwarp/db.py/Field.__str__/swapped operands of `%`