Read streaming input from subprocess.communicate()

Question

I\'m using Python\'s subprocess.communicate() to read stdout from a process that runs for about a minute.

How can I print out each line of that process

Answer 1

If you want a non-blocking approach, don't use process.communicate(). If you set the subprocess.Popen() argument stdout to PIPE, you can read from process.stdout and check if the process still runs using process.poll().