code: def _transform_browser_coor(rRNA_interval, rRNA_coor):
      
      with open(rRNA_coor, 'w') as out_handle:
          with open(rRNA_interval, 'r') as in_handle:
              for line in in_handle:
                  c, bio, source, s, e = line.split("\t")[:5]
                  if bio.startswith("rRNA"):
                      out_handle.write(("{0}:{1}-{2}\n").format(c, s, e))
docs: transform interval format to browser coord: chr:start-end