Comix is a user-friendly, customizable image viewer. It is specifically designed to handle comic books, but also serves as a generic viewer. It reads images in ZIP, RAR or tar archives (also gzip or bzip2 compressed) as well as plain image files. It is written in Python and uses GTK+ through the PyGTK bindings.
Comix 3.1 includes a new convert dialog, an image extraction feature, support for recursive adding of archives to the library, a French translation by Achraf Cherti and some other things.
Read more at: http://comix.sourceforge.net