live output from subprocess command

Question

I\'m using a python script as a driver for a hydrodynamics code. When it comes time to run the simulation, I use subprocess.Popen to run the code, collect the

Answer 1

import os

def execute(cmd, callback):
    for line in iter(os.popen(cmd).readline, ''): 
            callback(line[:-1])

execute('ls -a', print)