title: Python: simple progress bar on subprocess call
body: <p>i have a simple write to file code, (one.py)</p>
  
  <p>one.py</p>
  
  <pre><code>from time import sleep
  f = open("test.txt","w") #opens file with name of "test.txt"
  sleep(1)
  f.write("I am a test file.")
  sleep (2)
  f.write("Maybe someday, he will promote me to a real file.")
  sleep (1)
  f.write("Man, I long to be a real file")
  sleep (1)
  f.write("and hang out with all my new real file friends.")
  f.close()
  </code></pre>
  
  <p>subpro.py</p>
  
  <pre><code>import subprocess
  
  def oneCall():
      subprocess.call(['python','one.py'])
  
  
  
  if __name__ == '__main__':
      print "Writing Data"
      oneCall()
  </code></pre>
  
  <p>when i run subpro.py, the indicator will show like it hang, is there any way i can change it in to progress bar? so that the user will know that there are actually progress in the background?</p>