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Python: Getting live output from subprocess using poll

Using subprocess.Popen, subprocess.call, or subprocess.check_output will all invoke a process using Python, but if you want live output coming from stdout you need use subprocess.Popen in tandem with the Popen.poll method. In this article I will show how to invoke a process from Python and show  stdout live without waiting for the process to complete.  Python: Getting live output from subprocess using poll