>Cayte: >> If you tell me where your files are, I can write test cases. Me: >I've placed the most recent copy of my proposed code at >ftp://starship.python.net/pub/crew/dalke/biopython/ Oops! Forgot to put the newest version there. It's now present at ftp://starship.python.net/pub/crew/dalke/biopython/Bio-0.1-d4.tar.gz Andrew