Paramiko and Pseudo-tty Allocation

Question

I'm trying to use Paramiko to connect to a remote host and execute a number of text file substitutions.

i, o, e = client.exec_command("perl -p -i -e 's/" + initial + "/"                                + replaced + "/g'" + conf); 

Some of these commands need to be run as sudo, which results in:

sudo: sorry, you must have a tty to run sudo

I can force pseudo-tty allocation with the -t switch and ssh.

Is it possible to do the same thing using paramiko?

Answer 1

Actually it's quite simple. Just:

stdin, stdout, stderr = client.exec_command(command,  get_pty=True) 

Answer 2

The following code works for me:

#!/usr/bin/env python import paramiko  ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect('localhost',username='root',password='secret') chan = ssh.get_transport().open_session() chan.get_pty() chan.exec_command('tty') print(chan.recv(1024)) 

This was just assembled from looking at a few examples online... not sure if its the "right" way.