title: Call a python subprocess as daemon and exit
body: <p>I'm using a pair of python programs, one of which should call the second.</p>
  
  <p>But this should be done in a way that the first program makes the second one a daemon (or running in the background process), then exits, without waiting for the second program to end.</p>
  
  <p>Is this possible in Python?</p>
  
  <p>I've been looking at os.fork, subprocess module, but I'm quite confused as the correct way to achieve this...</p>