Generic method to run a remote sudo command

[mpennington-te]

I have been trying to figure out how to manually run a sudo command with Exscript, but the way to do so escapes me. I'm trying to use send() to send the sudo command, but I can't seem to detect the password prompt after I do so.

I think send() may be the wrong way to invoke a sudo, but I can't find another way when I use SSH2().

There's probably some exscript automation that could handle the sudo in a "black box" manner, but I'd like to have full control over what happens when I try to sudo... so I'd prefer to do something along the lines of manual send(), expect(), etc...

I'm running exscript 2.6.3 / Python 3.8.12 / macOS Catalina...

from getpass import getpass
import os

from Exscript.protocols import SSH2
from Exscript import Account

MY_USERNAME = "nobody"

def login_linux(password, host, command):
    account = Account(MY_USERNAME, password)
    conn = SSH2(driver='generic', debug=0)
    conn.connect(host)
    conn.login(account)

    sudo_check_linux(conn, command)

def sudo_check_linux(conn, command):

    conn.send("sudo ls\r")
    conn.expect("assword: ")  # <---- I can never detect the expect prompt
    conn.execute(password)

    conn.execute(command)
    output = conn.response

    try:
        conn.send('exit\r')
        conn.close()
    except:
        pass

    return output

if __name__=='__main__':
    password = getpass("password for %s: " % MY_USERNAME)
    host = "this_host.localdomain"
    output = login_linux(password, host, "sudo uname -a")
    print("%s\n%s" % (host, output))

Could someone give me a pointer on how to fix this script?