Simple, small and extensible. It's easy to write your own layouts, widgets and built-in commands.
Configured entirely in Python.
Command-line shell that allows all aspects of Qtile to be manipulated and inspected.
Complete remote scriptability - write scripts to set up workspaces, manipulate windows, update status bar widgets and more.
Qtile's scriptability has made thorough unit testing possible, making it one of the best-tested window managers around.
Since one of Qtile's aims is to stay out of your way, there's usually not much to show off in a screenshot. That said, here's an image showing some of Qtile's built-in widgets in bars at the top and bottom of the screen. Click for very large version:
Copyright 2010 Aldo Cortesi