p = subprocess.Popen(["top"], stdout = PIPE) p.stdout.readlines()
And to write to stdin (in your case "q") you can use p.stdin.write("q"), or terminate the process with p.terminate(), or just specify the -n option (the number of iterations) to the value you desire. It's done in that way: subprocess.Popen(["top","-n 1"], stdout=PIPE)
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