Someone finally got me into the idea of using Python 3.x, so I started looking at my current projects, and picked one to test with. This resulted in me having to port a pretty major library, python-rrdtool. The trick about this is that RRDTool is a C library, so the Python module is an extension module, written in C.
And of course, strings and unicode are different from Python 2.x to 3.x….
Anyway, here’s my pull request: on github