Jose Cuenca shares a tool that he built that will allow you to create a Maya window quickly, providing functionality for the basic distribution of elements, and define size, color, and commands, all while allowing you to test the window while you are building it. In the end jcWindowCreator will spit out the proper code for that window in Maya.
In the jcWindowCreator you can only create a few important elements with some attributes to configure
One you have your window all set up with WindowCreator, you are able to generate the necessary code either in MEL or Python, offering a quick way to get a head start on scripting tasks. Check out the WindowCreator Python Script for Maya here.