Appnr

This is Purrr, mass file rename tool written in PyGTK

Purrr will let you rename multiple files according to specified template.
Templates are really a miniature programming language, with variables and
stuff.

All that to let you automate not-so-fun task of doing zillions of
almost identical renames by hand. If you have ever downloaded anime series
where files had smart names like kimi_ga_ep1_divx_mp3[23ed4xc].avi through
kimi_ga_ep13_divx_mp3[4c00ddd].avi, you'll surely get the idea.

Homepage: http://mathrick.org/software/purrr.html