Unable to execute sudo command in python script

Question

I am attempting to execute sudo from a python script:

import os
command = 'id'
os.popen("sudo -S %s"%(command), 'w').write('password')

My server is configured to not allow non-TTY shells to execute sudo for security reasons, is there a workaround for this to execute the sudo command using python (without using su).

The above code outputs:

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

possible duplicate of https://stackoverflow.com/questions/38641224/python-subprocess-sudo-returns-error-error-sudo-sorry-you-must-have-a-tty/38641856#38641856 ? — Nobody
– Nobody, Commented Apr 12, 2020 at 1:38
@dd_doriz Did you try adding RETURN after password. It could be that the terminal is waiting for you submit the password? os.popen("sudo -S %s"%(command), 'w').write('password\r') — Thaer A
– Thaer A, Commented Apr 12, 2020 at 5:42
Does this answer your question? Issuing commands to psuedo shells (pty) — classicdude7
– classicdude7, Commented Apr 12, 2020 at 14:51

stark · Accepted Answer · 2020-04-12 12:54:21Z

1

Based on this: https://stackoverflow.com/a/21444480/1216776 you should be able to do:

import os
import pty
command = 'id'

scmd ="sudo -S %s"%(command)

def reader(fd):
  return os.read(fd)

def writer(fd):
    yield 'password'
    yield ''

pty.spawn(scmd, reader, writer)

answered Apr 12, 2020 at 12:54

stark

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