code: def print_consensus(genomes):
      cons = {}
      for genome, contigs in list(genomes.items()):
          cons[genome] = {}
          for contig, samples in list(contigs.items()):
              for sample, stats in list(samples.items()):
                  if sample not in cons[genome]:
                      cons[genome][sample] = {}
                  seq = cons[genome][sample][contig] = []
                  for pos, ps in enumerate(stats['bp_stats'], 1):
                      ref, consensus = ps['ref'], ps['consensus'][0]
                      if consensus == 'n/a':
                          consensus = ref.lower()
                      seq.append(consensus)
      for genome, samples in cons.items():
          for sample, contigs in samples.items():
              fn = '%s.%s.consensus.fa' % (genome, sample)
              f = open(fn, 'w')
              for contig, seq in contigs.items():
                  print('>%s' % (contig), file = f)
                  print(''.join(seq), file = f)
              f.close()
      return cons