code: def writeFasta(sequence, sequence_name, output_file):
      
      i=0
      f=open(output_file,'w')
      f.write(">"+str(sequence_name)+"\n")
      while i <= len(sequence):
          f.write(sequence[i:i+60]+"\n")
          i=i+60
      f.close()
docs: Writes a fasta sequence into a file.
  
      :param sequence: a string with the sequence to be written
      :param sequence_name: name of the the fasta sequence
      :param output_file: /path/to/file.fa to be written
  
      :returns: nothing