class objMySQL:
    def __init__(self, host='localhost', user='root', passwd='', database='intras'):
        self.db = MySQLdb.connect(host, user, passwd, database)
        self.cursor=self.db.cursor()
        self.cursor.execute("SET NAMES utf8")

    #Запрос на select
    def execute(self, sql):
        self.cursor.execute(sql)
        return list(self.cursor.fetchall())       

    #Запрос на колво-записей (count * - первое поле)
    def executeScalar(self, sql):
        self.cursor.execute(sql)
        return self.cursor.fetchone()

    #Запрос на INSERT, UPDATE, DELETE, ALTER, DROP, CREATE....
    def executeNonQuery(self, sql):
        self.cursor.execute(sql)
        self.db.commit()
        return

    def __del__(self):
        self.cursor.close()
        self.db.close()

count=objMySQL().executeScalar("SELECT COUNT(*) FROM adminka_users")

user=objMySQL().execute("SELECT * FROM adminka_users WHERE id='" + iduser + "'")

objMySQL().executeNonQuery("DELETE FROM adminka_user_groups WHERE user_id='" + iduser + "'")

>>> cursor.execute("SELECT * FROM my_table WHERE my_column = %s", "column_value")