Code to parse the keywlist.txt file from SwissProt/UniProt

See:

• http://www.expasy.ch/sprot/sprot-top.html
• ftp://ftp.expasy.org/databases/uniprot/current_release/knowledgebase/complete/docs/keywlist.txt

Classes:

• Record Stores the information about one keyword or one category in the keywlist.txt file.

Functions:

• parse Parses the keywlist.txt file and returns an iterator to the records it contains.