python 数据库导入excel

import MySQLdb
import xlwt
def outMySQL(file_name):
    wb = xlwt.Workbook()
    sh = wb.add_sheet('sheet 1',cell_overwrite_ok=True)

    db = MySQLdb.connect("localhost","root","123","STUDENTS",use_unicode=1,charset='utf8')
    cursor = db.cursor()

    sql = '''SELECT * FROM STUDENTS '''

    cursor.execute(sql)
    data = cursor.fetchall()
    value = cursor.description
    rows = len(data)
    cols = len(map(list,zip(*data)))
    for v in range(0,len(value)):
        sh.write(0,v,value[v][0])
    for i in range(1,rows+1):
        for j in range(0,cols):
            sh.write(i,j,data[i-1][j])
    wb.save(file_name)
    cursor.close()
    db.commit()
    db.close()
if __name__=="__main__":
    outMySQL('/home/wangzhch/excel.xls');