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

We can also use the default file iterator for reading stdout instead of using iter construct with readline().

import subprocess
import sys
process = subprocess.Popen(your_command, stdout=subprocess.PIPE)
for line in process.stdout:
    sys.stdout.write(line)