One way to customize our GUI is to give it a different icon than the default icon that ships out of the box with tkinter. Here is how we do this.
We are improving our GUI from the previous recipe. We will use an icon that ships with Python but you can use any icon you find useful. Make sure you have the full path to where the icon lives in your code, or you might get errors.
Place the following code somewhere above the main event loop. The example uses the path where I installed Python 3.4. You might have to adjust it to match your installation directory.
Notice how the "feather" default icon in the top-left corner of the GUI changed.
# Change the main windows icon win.iconbitmap(r'C:\Python34\DLLs\pyc.ico')
