Paramiko: password + authenticator app-passcode autentification

[shoaib-intro]

Hi I'm trying to connect server which ask:
Password:
Passcode: coming from authenticator app

I tried following code:

def handler(title, instructions, prompt_list):
        answers = []
        for prompt_, _ in prompt_list:
            prompt = prompt_.strip().lower()
            if 'password' in prompt:
                password = getpass.getpass(prompt)
                answers.append(password)
            elif 'passcode' in prompt:
                otp = getpass.getpass(prompt)
                answers.append(otp)
            else:
                print('Unknown prompt: {prompt_}')
        return answers

transport = paramiko.Transport(host)
transport.start_client()
transport.auth_interactive(username, handler)

Error: INFO:paramiko.transport:Authentication (keyboard-interactive) failed.
It failed password authentication then I tried

def interactive_auth_handler(title, instructions, prompt_list):
    if prompt_list:
        if prompt_list[0][0]=="Password: ":
            return [password]
        return [getpass.getpass(prompt_list[0][0])]
    return []


client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
try:
    client.connect(host, port, username=username, password=password, pkey=None)
except paramiko.ssh_exception.SSHException as e:
    transport = client.get_transport()
    transport.auth_interactive(username, interactive_auth_handler)

but again authentication failed could you please tell me what actually problem is there. following is error from paramiko debug:

INFO:paramiko.transport:Authentication (password) failed.

[chrisinmtown]

I believe the first code block sequence is appropriate: create a Transport, call start_client, call auth_interactive. The presence of (password) in the error message makes me question whether your custom handler is being invoked. I would first try adding print() or a loggers etc. to your interactive_auth_handler to see exactly what's going on. For comparison, in my code (example is posted to issue #1011) if I pass an invalid password to my own custom interactive authentication handler, I get error message paramiko.ssh_exception.AuthenticationException: Authentication failed.