06_09_classes_atributo_classe.py

class Column:
    def _validate(self, kind, data):
        if kind == 'bigint':
            if isinstance(data, int):
                return True
            return False
        elif kind == 'varchar':
            if isinstance(data, str):
                return True
            return False
        elif kind == 'numeric':
            try:
                val = Decimal(data)
            except:
                return False
            return True

    validate = _validate