new_contents: # -*- coding: utf-8 -*-
  """
  
  """
  
  aa1to3 = {
  'A':'ALA',
  'C':'CYS',
  'D':'ASP',
  'E':'GLU',
  'H':'HIS',
  'I':'ILE',
  'K':'LYS',
  'L':'LEU',
  'M':'MET',
  'N':'ASN',
  'P':'PRO',
  'Q':'GLN',
  'R':'ARG',
  'S':'SER',
  'T':'THR',
  'V':'VAL',
  'W':'TRP',
  'Y':'TYR'
  }
subject: Create common interface file. Start with a 1 to 3 amino acid code dictionary