def from_range(cls, range_list, register_flag=True):
        """ core class method to create visible objects from a range (nested list) """
        s = dict_from_range(range_list)
        obj = cls.from_serializable(s, register_flag)
        return obj
def from_range ( cls , range_list , register_flag = True ) : s = dict_from_range ( range_list ) obj = cls . from_serializable ( s , register_flag ) return obj
core class method to create visible objects from a range (nested list)