The Biopython package contains high-quality, reusable modules and
scripts written in Python to make it as easy as possible to use Python
for bioinformatics.  The Biopython includes the follwing: the ability
to parse bioinformatics files into python utilizable data structures,
including support for the formats such as Blast output, Clustalw,
FASTA, GenBank, PubMed and Medicine, various Expasy files, SCOP,
Rebase, UniGene, and SwissProt.