| InterProParser | Parser for InterPro xml files. |
| dagflat | a base class parser for GO flat-file type formats |
| goflat | a parser for the Gene Ontology flat-file format |
| obo | a parser for OBO flat-file format from Gene Ontology Consortium |
| simplehierarchy | a base class parser for simple hierarchy-by-indentation type formats |
| soflat | a parser for the Sequence Ontology flat-file format |