Old-style relative imports and the way that it does join are there because 
it's Python 2.4 compatible code that I'm porting. I'll add those to the 
list of things that need to be changed when backporting, implement cyclic 
GC on the types, and I'll take a look at lines > 80 chars and fix any that 
occur in Python code (though for some of the tests it may be a bit more 
effort than its worth).

It will probably take another week or two for me to implement those things 
and then do another backport.