text: import os, sys
  import gzip
  
  seq = ''
  for line in gzip.open(sys.argv[1], 'rt'):
      if line.startswith('>'):
          if seq != '':
              print(header)
              print(seq)
          header = line.rstrip()
          seq = ''
      else:
          seq += line.rstrip()
  
  print(header)
  print(seq)
  