title: Python network bandwidth monitor
body: <p>I am developing a program in python, and one element tells the user how much bandwidth they have used since the program has opened (not just within the program, but regular web browsing while the program has been opened). The output should be displayed in GTK</p>
  
  <p>Is there anything in existence, if not can you point me in the right direction. It seems like i would have to edit an existing proxy script like pythonproxy, but i can't see how i would use it.</p>
  
  <p>Thanks,</p>