python mysql 单引号字符串过滤

class Guide:
def __init__(self):
self.time_zone = 7*3600 #设置时区
self.now_time = int(time.time()) + self.time_zone #取得当前时间
#本地
self.gamedb_model = mysql_conn.MySQLHelper(config.game_db['host'], config.game_db['user'],
config.game_db['password'], config.game_db['db_name'],
config.game_db['port'])
#远程
self.remote_model = mysql_conn.MySQLHelper(config.remote_db['host'], config.remote_db['user'],
config.remote_db['password'], config.remote_db['db_name'],
config.remote_db['port'])
#game center
self.commdb_model = mysql_conn.MySQLHelper(config.comm_db['host'], config.comm_db['user'],
config.comm_db['password'], config.comm_db['db_name'],
config.comm_db['port'])
def index(self):
#拿到第二天未登陆的用户
for line in open("2014.3.20_global_ips.txt"):
list    = line.split('||')
l =    len(list)
if l == 3:
info = ''
else:
info = MySQLdb.escape_string(list[3])
self.commdb_model.insert('ip_area',{'start_ip':list[0],'end_ip':list[1],'area':list[2],'info':info})

if __name__ =="__main__":
keep = Guide()
keep.index()