Nose-rage is a project mainly written in Python, it's free.
Implements PEP712. Displays FFFFFFFUUUU for errors.
Implements PEP712 for Python Nose. Displays FFFFFFFUUUU for errors.
PEP712: http://www.revsys.com/blog/2011/oct/20/pep712-proposal-make-unittest2-more-accurate/
I got the idea from this Reddit thread, where someone made a py.test plugin:
http://www.reddit.com/r/Python/comments/lj34l/pep712_proposal_to_make_unittest2_more_accurate/