Python读取ini文件、操作mysql、发送邮件实例

[mail]
host=smtp.163.com
mail_from=zhoujie0111@126.com
password=654321
send_to=zhoujie0111@139.com;zhoujie0111@163.com

import MySQLdb   #首先必须装这两个包
import ConfigParser

cf=ConfigParser.ConfigParser()
cf.read("conf.ini")

DATABASE=cf.get("app_info","DATABASE")
USER=cf.get("app_info","USER")
PASSWORD=cf.get("app_info","PASSWORD")
HOST=cf.get("app_info","HOST")
PORT=cf.get("app_info","PORT")

def mysql(sql):
    try:
        conn=MySQLdb.connect(host=HOST,user=USER,passwd=PASSWORD,db=DATABASE,port=PORT)
        cur = conn.cursor()
        cur.execute(sql)
        rows = cur.fetchall()
        conn.commit()  #这个对于增删改是必须的，否则事务没提交执行不成功
        cur.close()
        conn.close()
        return rows
    except MySQLdb.Error,e:
        print "Mysql Error %d: %s" % (e.args[0], e.args[1])

    #插入
    '''
    插入这个地方有2点需要注意：
    1.插入某几列如下指定，插入全部可以不指定列，但必须后面插入的值要按顺序
    2.注意下面的type列两边有反斜点，这是因为type在我这个数据库里有个表也叫这个，或者可以把它叫关键字，不加反斜点插入会失败
    3.这没好说的，呵呵，数字占位符用%d,字符串用%s，且字符串占位符必须用双引号括起来
    '''
    insert = mysql('insert into test (name,number,`type`) values("%s",%d,"%s")'%('jzhou',100,'VIP'))

    #更新
    mysql('update test set number=%d where name="%s"'%(99,'jzhou'))

    #删除
    delete = mysql('delete from test where number = %d and `type`="%s"'%(100,'jzhou'))

    return select #我返回这个是为了下面发送邮件用的，顺便增加个发送邮件的功能

mail_host=cf.get("mail","host")
mail_from=cf.get("mail","mail_from")
mail_password=cf.get("mail","password")

def send_mail(to_list,sub,content):
    me=mail_from
    msg=MIMEText(content,_subtype='html',_charset='utf-8')
    msg['Subject']=sub
    msg['From']=me
    msg['To']=";".join(to_list)
    try:
        s=smtplib.SMTP()
        s.connect(mail_host)
        s.login(mail_from,mail_password)
        s.sendmail(me,to_list,msg.as_string())
        s.close()
        return True
    except Exception,e:
        print str(e)
        return False

cf=ConfigParser.ConfigParser()
cf.read("conf.ini")

DATABASE=cf.get("cmdb_info","DATABASE")
USER=cf.get("cmdb_info","USER")
PASSWORD=cf.get("cmdb_info","PASSWORD")
HOST=cf.get("cmdb_info","HOST")
PORT=cf.get("cmdb_info","PORT")

def psql(sql):
    try：
        conn = psycopg2.connect(database=DATABASE, user=USER, password=PASSWORD, host=HOST, port=PORT)
        cur = conn.cursor()
        cur.execute(sql)
        rows = cur.fetchall()
        conn.commit()
        cur.close()
        conn.close()
        return rows
    except Exception,e:
        print e

def psql_oper():
    sql="select \"name\",\"type\" from \"test\" where \"name\" = 'jzhou'"
    rows=psql(sql)
    print rows