Python实现一个简单的MySQL类

本文实例讲述了python/' target='_blank'>python实现一个简单的mysql/' target='_blank'>mysql类。分享给大家供大家参考。

具体实现方法如下：

复制代码 代码如下:#!/usr/bin/env Python
# -*- coding:utf-8 -*-
# Created on 2011-2-19
# @author: xiaoxiao
import MySQLdb
import sys
__all__ = ['MySQL']
class MySQL(object):
'''
MySQL
'''
conn = ''
cursor = ''
def __init__(self,host='localhost',user='root',passwd='root',db='mysql',charset='utf8'):

"""MySQL Database initialization """
try:
self.conn = MySQLdb.connect(host,user,passwd,db)
except MySQLdb.Error,e:
errormsg = 'Cannot connect to server\nERROR (%s): %s' %(e.args[0],e.args[1])
print errormsg
sys.exit()

self.cursor = self.conn.cursor()

def query(self,sql):
""" Execute SQL statement """
return self.cursor.execute(sql)

def show(self):
""" Return the results after executing SQL statement """
return self.cursor.fetchall()

def __del__(self):
""" Terminate the connection """
self.conn.close()
self.cursor.close()

#test
if __name__ == '__main__':

mysql = MySQL(host=localhost,passwd='test',db='mysql')
mysql.query('select * from users')
result = mysql.show()
print len(result)
print result[1]

希望本文所述对大家的Python程序设计有所帮助。