code: def load_GODag():
      
      from jcvi.apps.base import download
  
      so_file_url = "http://obo.cvs.sourceforge.net/viewvc/obo/obo/ontology/genomic-proteomic/so.obo"
      so_file = download(so_file_url, debug=False)
  
      return GODag(so_file)
docs: OBO file retrieved from http://obo.cvs.sourceforge.net/viewvc/obo/obo/ontology/genomic-proteomic/so.obo