old_contents: # -*- coding: utf-8 -*-
  import unicodedata
  
  
  def shortest_normalization_form():
      """
      Find unicode normalization that generates shortest utf8 encoded text.
  
      Result NFKC
      """
      s = 'Iñtërnâtiônàlizætiøn☃ and string escaping are ticky &#160; things'
      nfc = unicodedata.normalize('NFC', s)
      nfd = unicodedata.normalize('NFD', s)
      nfkc = unicodedata.normalize('NFKC', s)
      nfkd = unicodedata.normalize('NFKD', s)
      nfd_nfkc = unicodedata.normalize('NFKC', nfd)
  
      print('UTF-8 length of normalized strings:\n')
      print(f'NFC: {len(nfc.encode("utf8"))}')
      print(f'NFD: {len(nfd.encode("utf8"))}')
      print(f'NFKC: {len(nfkc.encode("utf8"))}')
      print(f'NFKD: {len(nfkd.encode("utf8"))}')
      print(f'NFD_NFKC: {len(nfd_nfkc.encode("utf8"))}')
  
  
  if __name__ == '__main__':
      shortest_normalization_form()
  
new_contents: # -*- coding: utf-8 -*-
  import unicodedata
  
  
  def shortest_normalization_form():
      """
      Find unicode normalization that generates shortest utf8 encoded text.
  
      Result NFKC
      """
      s = 'Iñtërnâtiônàlizætiøn☃ and string escaping are ticky &#160; things'
      nfc = unicodedata.normalize('NFC', s)
      nfd = unicodedata.normalize('NFD', s)
      nfkc = unicodedata.normalize('NFKC', s)
      nfkd = unicodedata.normalize('NFKD', s)
      nfd_nfkc = unicodedata.normalize('NFKC', nfd)
      nfd_nfc = unicodedata.normalize('NFC', nfd)
  
      print('UTF-8 length of normalized strings:\n')
      print(f'NFC: {len(nfc.encode("utf8"))}')
      print(f'NFD: {len(nfd.encode("utf8"))}')
      print(f'NFKC: {len(nfkc.encode("utf8"))}')
      print(f'NFKD: {len(nfkd.encode("utf8"))}')
      print(f'NFD_NFKC: {len(nfd_nfkc.encode("utf8"))}')
      print(f'NFD_NFC: {len(nfd_nfc.encode("utf8"))}')
  
  
  if __name__ == '__main__':
      shortest_normalization_form()
  
subject: Add NFD_NFC to unicode normalization comparison.