title: Can Gnuplot take different arguments at run time? maybe with Python?
body: <p>I have 500 files to plot and I want to do this automatically. I have the gnuplot script
  that does the plotting with the file name hard coded. I would like to have a loop that calls gnuplot every iteration with a different file name, but it does not seem that gnuplot support command line arguments. </p>
  
  <p>Is there an easy way? I also installed the gnuplot-python package in case I can do it via a python script.However, I couldn't find the api so it's a bit difficult to figure out.</p>
  
  <p>Thank you!  </p>