CODE EXAMPLE FOR PYTHON

docker python run subprocess python run docker interactively subprocess

import pty
import sys
import select
import os
import subprocess

pty, tty = pty.openpty()

p = subprocess.Popen(['docker', 'run', '-it', '--rm', 'ubuntu', 'bash'], stdin=tty, stdout=tty, stderr=tty)

while p.poll() is None:
    # Watch two files, STDIN of your Python process and the pseudo terminal
    r, _, _ = select.select([sys.stdin, pty], [], [])
    if sys.stdin in r:
        input_from_your_terminal = os.read(sys.stdin.fileno(), 10240)
        os.write(pty, input_from_your_terminal)
    elif pty in r:
        output_from_docker = os.read(pty, 10240)
        os.write(sys.stdout.fileno(), output_from_docker)