<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def login(self, host_spec="", username="", password=""):
 """ Authenticate with infrastructure via the Skydive analyzer This method will also set the authentication cookie to be used in the future requests :param host_spec: Host IP and port (e.g. 192.168.10.1:8082) :type host_spec: string :param username: Username to use for login :type username: string :param password: Password to use for login :type password: string :return: True on successful authentication, False otherwise """


        warnings.warn(
            "shouldn't use this function anymore ! use connect which handles"
            "handles authentication directly.",
            DeprecationWarning
        )

        scheme = "http"
        if not host_spec:
            u = urlparse(self.endpoint)
            host_spec = u.netloc
            if u.scheme == "wss":
                scheme = "https"
            if self.username:
                username = self.username
            if self.password:
                password = self.password

        auth = Authenticate(host_spec, scheme=scheme,
                            username=username, password=password)
        try:
            auth.login()
            cookie = 'authtok={}'.format(auth.authtok)
            if self.cookies:
                self.cookies.append(cookie)
            else:
                self.cookies = [cookie, ]
            return True
        except Exception:
            return False