code: def uniq(args):
      
      p = OptionParser(uniq.__doc__)
      p.add_option("--seq", default=False, action="store_true",
              help="Uniqify the sequences [default: %default]")
      p.add_option("-t", "--trimname", dest="trimname",
              action="store_true", default=False,
              help="turn on the defline trim to first space [default: %default]")
  
      opts, args = p.parse_args(args)
      if len(args) != 2:
          sys.exit(p.print_help())
  
      fastafile, uniqfastafile = args
      fw = must_open(uniqfastafile, "w")
      seq = opts.seq
  
      for rec in _uniq_rec(fastafile, seq=seq):
          if opts.trimname:
              rec.description = ""
          SeqIO.write([rec], fw, "fasta")
docs: %prog uniq fasta uniq.fasta
  
      remove fasta records that are the same