code: def build_db_jobs(infiles, blastcmds):
      
      dbjobdict = {}  # Dict of database construction jobs, keyed by filename
      # Create dictionary of database building jobs, keyed by db name
      # defining jobnum for later use as last job index used
      for idx, fname in enumerate(infiles):
          dbjobdict[blastcmds.get_db_name(fname)] = pyani_jobs.Job(
              "%s_db_%06d" % (blastcmds.prefix, idx), blastcmds.build_db_cmd(fname)
          )
      return dbjobdict
docs: Returns dictionary of db-building commands, keyed by dbname.