Interacting with another command line program in Python

Question

I need to write a Python script that can run another command line program and interact with it\'s stdin and stdout streams. Essentially, the Python script will read from the tar

Answer 1

see the question wxPython: how to create a bash shell window?

there I have given a full fledged interaction with bash shell reading stdout and stderr and communicating via stdin

main part is extension of this code

bp = Popen('bash', shell=False, stdout=PIPE, stdin=PIPE, stderr=PIPE)
bp.stdin.write("ls\n")
bp.stdout.readline()

if we read all data it will get blocked so the link to script I have given does it in a thread. That is a complete wxpython app mimicking bash shell partially.