docs: def ChoiceHumanReadable(choices, choice):
      """
      Return the human readable representation for a list of choices.
      
      @see https://docs.djangoproject.com/en/dev/ref/models/fields/#choices
      """
      if choice == None: raise NoChoiceError()
      for _choice in choices:
          if _choice[0] == choice:
              return _choice[1]
      raise NoChoiceMatchError("The choice '%s' does not exist in '%s'" % (choice, ", ".join([choice[0] for choice in choices])))