Hey everyone, good news!! In revision #205 I patched timekpr to include support for both Python 2.x and Python 3!
It needs testing of course, but from what I've tested with simple commands and running the gui, it seems it works!
Fortunately we do not use many dependencies, and hopefully we'll be able to test it real-time using python 3 when ubuntu moves to python3 - or if someone else wants to try it. (note: ubuntu jaunty will have python2.6 as default)