class DB():

    db = None

    def __init__(self, mysqlhost, mysqluser, mysqlpass, mysqldb):
        self.mysqlhost = mysqlhost
        self.mysqluser = mysqluser
        self.mysqlpass = mysqlpass
        self.mysqldb = mysqldb

    def connect(self):
        self.db = MySQLdb.connect(host=mysqlhost, user=mysqluser, passwd=mysqlpass, db=mysqldb)

    def query(self, sql):
        try:
            cursor = self.db.cursor()
            cursor.execute(sql)
        except(AttributeError, MySQLdb.OperationalError):
            self.connect()
            cursor = self.db.cursor()
            cursor.execute(sql)
        return cursor