Launch a shell command with in a python script, wait for the termination and return to the script

Question

I\'ve a python script that has to launch a shell command for every file in a dir:

import os

files = os.listdir(\".\")
for f in files:
    os.execlp(\"myscri         


        

Answer 1

You can use subprocess.Popen. There's a few ways to do it:

import subprocess
cmd = ['/run/myscript', '--arg', 'value']
p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
for line in p.stdout:
    print line
p.wait()
print p.returncode

Or, if you don't care what the external program actually does:

cmd = ['/run/myscript', '--arg', 'value']
subprocess.Popen(cmd).wait()