Python 目标代码和程序代码

由于我仍然是python中的noob程序员，所以我想知道代码结构之间的区别。对象还是程序

下面是我当前处理mysql连接和查询的类的代码

import pymysql

class Database(object):

    def __init__(self):
        self.db = pymysql.connect(host="localhost",    # your host, usually localhost
                                  user="root",         # your username
                                  passwd="",  # your password
                                  db="mgdeal")        # name of the data base
        self.cur = self.db.cursor()

    def select(self, sql):
        cursor = self.db.cursor()
        cursor.execute(sql)
        result = cursor.fetchall()
        cursor.close()
        return result

    def insert (self, sql):
        cursor= self.db.cursor()
        cursor.execute(sql)
        newID = cursor.lastrowid
        cursor.close()
        return newID


if __name__ == '__main__':
    db = Database()

现在我已经发现并理解了这个新的mysql类

class MysqlPython(object):
    """
        Python Class for connecting  with MySQL server and accelerate development project using MySQL
        Extremely easy to learn and use, friendly construction.
    """

    __instance   = None
    __host       = None
    __user       = None
    __password   = None
    __database   = None
    __session    = None
    __connection = None

    def __new__(cls, *args, **kwargs):
        if not cls.__instance or not cls.__database:
             cls.__instance = super(MysqlPython, cls).__new__(cls,*args,**kwargs)
        return cls.__instance
    ## End def __new__

    def __init__(self, host='localhost', user='root', password='', database=''):
        self.__host     = host
        self.__user     = user
        self.__password = password
        self.__database = database
    ## End def __init__

    def __open(self):
        try:
            cnx = MySQLdb.connect(self.__host, self.__user, self.__password, self.__database)
            self.__connection = cnx
            self.__session    = cnx.cursor()
        except MySQLdb.Error as e:
            print "Error %d: %s" % (e.args[0],e.args[1])

    def __close(self):
        self.__session.close()
        self.__connection.close()

    def select(self, table, where=None, *args, **kwargs):
        result = None
        query = 'SELECT '
        keys = args
        values = tuple(kwargs.values())
        l = len(keys) - 1

        for i, key in enumerate(keys):
            query += "`"+key+"`"
            if i < l:
                query += ","
        ## End for keys

        query += 'FROM `%s`' % table

        if where:
            query += " WHERE %s" % where
        print(query)
        ## End if where

我想知道这两个类中哪一个更面向对象？ 据我所知，对象代码总是从类生成Instance对象，但对我来说，它更像是一种将函数对象存储在超级函数中的方式…我想知道什么时候我们可以说它是对象还是非对象

同样在我的主程序中，有什么东西必须更改，才能说它是objet代码

谢谢你的帮助

emailFieldID = "Login"
passFieldID = "Password"
loginButtonXpath = "//*[@id='id_1__']"
headerFieldID = "header"

emailFieldElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_id(emailFieldID))
passFieldElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_id(passFieldID))
loginButtonElement = WebDriverWait(driver, 10).until(lambda driver: driver.find_element_by_xpath(loginButtonXpath))

# Envoie des credentials
emailFieldElement.clear()
emailFieldElement.send_keys(Username)
passFieldElement.clear()
passFieldElement.send_keys(Password)
loginButtonElement.click()

# Etape 2: Ajout des produit

#Initialisation de l'objet Database
db = Database()


sql = 'SELECT * FROM `table 2` WHERE `categorie` = "Lego"'


listeproduit = db.select(sql)


for record in listeproduit:

    skuref     = record[0]
    print (skuref)
    ean        = record[1]
    titre_prod = record[2]
    print (titre_prod)
    desc_prod  = record[7]
    img_prod   = record[6]
    cat1       = record[11]
    cat2       = record[12]
    cat3       = record[13]
    cat4       = record[14]
    marque     = record[12]