title: PIL ImageTk equivalent in Python 3.x
body: <p>I'm developing an application with Tkinter that uses a database of <code>png</code> image files for icons. In order to use said images in the application, I open them using PIL's <code>Image.open</code>, run it through the <code>ImageTk.PhotoImage</code> function, then pass it to the widget constructor.</p>
  
  <p>The problem is, I'm trying to port my entire project over to Python 3.x, and because of PIL's lack of support for Python 3, I have no idea how to load the icons into the application.</p>
  
  <p>If anyone knew of a solution that would allow me to use the icons without having to convert all of them to <code>.gif</code> bitmaps, I would be very grateful!</p>