class Login:

    user_id = input("USERNAME: ")
    pass_id = input("PASSWORD: ")

    def __init__(self, username, password):
        self.username = username
        self.password = password

    def logCheck(self):
        if self.user_id == self.username and self.pass_id == self.password:
            print("LOGIN SUCCESS!")
            import game
            exit()
        else:
            print("LOGIN FAILED!")
      		#call class again here

user_joel = Login("joel", "abc123")
Login.logCheck(user_joel)