Авторизация с помощью БД

import mysql.connector as sql
 
class system_connect_database:
 
    __HOST = ''
    __USERNAME = ''
    __PASSWORD = ''
    __DATABASE = ''
 
    def __init__(self):
        self.con = sql.connect(host = system_connect_database.__HOST, username = system_connect_database.__USERNAME, password = system_connect_database.__PASSWORD, database = system_connect_database.__DATABASE)
 
    def connected_database(self, username, password):
 
        mypassword_queue =[]
        sql_query = "SELECT *FROM users_got_access_for_app WHERE login ='%s' AND password ='%s'" % (username, password)
        mycursor = self.con.cursor()
 
        try:
            mycursor.execute(sql_query)
            myresults =mycursor.fetchall()
            for row in myresults:
                for x in row:
                    mypassword_queue.append(x)
        except:
            pass
 
        login_check = input("1")
        password_check = input("2")
 
        if (login_check != username and password_check != password):
            print('1')
        else:
            print('2')
 
if __name__ == "__main__":
    system_connect_database.connected_database()