Running shell commands from Python and printing the output in real time

Question

I want to write a function that will execute multiple shell commands one at a time and print what the shell returns in real time.

I currently have the following code

Answer 1

Assuming you want control of the output in your python code you might need to do something like this

import subprocess

def run_process(exe):
    'Define a function for running commands and capturing stdout line by line'
    p = subprocess.Popen(exe.split(), stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    return iter(p.stdout.readline, b'')


if __name__ == '__main__':
    commands = ["foo", "foofoo"]
    for command in commands:
        for line in run_process(command):
            print(line)