code: def raw(self):
          
          escape_dict = {'\a': r'\a',
                         '\b': r'\b',
                         '\c': r'\c',
                         '\f': r'\f',
                         '\n': r'\n',
                         '\r': r'\r',
                         '\t': r'\t',
                         '\v': r'\v',
                         #'\x':r'\x',#cannot do \x - otherwise exception
                         '\'': r'\'',
                         '\"': r'\"',
                         #'\0':r'\0', #doesnt work
                         '\1': r'\1',
                         '\2': r'\2',
                         '\3': r'\3',
                         '\4': r'\4',
                         '\5': r'\5',
                         '\6': r'\6',
                         #'\7':r'\7',#same as \a is ASCI
                         }
      
          new_string = ''
          for char in self:
              try:
                  new_string += escape_dict[char]
              except KeyError:
                  new_string += char
          return new_string
docs: Try to transform str to raw str"
          ... this will not work every time