Pypanel

PyPanel is a panel (or toolbar/taskbar) written in Python and C. Features include a desktop pager, clock, system tray, and task buttons. It also sports a great deal of configurability, including the positions of all those elements (and whether the panel as a whole is at the top or bottom), the colors of text, the presence or absence of icons in the bar as well as transparency and shading. Button actions are also configurable and it can be hidden to the right or left borders. Dependencies are only Python (naturally) and Python X Lib.