python - Resetting class to default state -

in python, standard/commonly used way reset class "default state"? example, before loading class might want reset existing data.

for example, check out self.clear() method below:

class conlanguage:     serializable_attributes = \         ["roots", "prefixes", "suffixes"...] #list of "important" fields      def __init__(self):         self.roots = []         self.prefixes = []         self.suffixes = []         .....      def clear(self): # <<--- method         tmp = conlanguage()         attr in self.serializeable_attributes:             setattr(self, attr, getattr(tmp))      def loadfromdict(self, indict):         defaultvalues = conlanguage()         attr in self.serializable_attributes:             setattr(self, attr, indict.get(attr, getattr(defaultvalues.attr)))      def loads(self, s):         self.loadfromdict(json.loads(s)) 

this approach seems job, wonder if there way it.

---

the other question (which not have accepted answers) seems cover diferrent problem - has couple of numerical fields needs initialized zero, while in scenario there bunch of members have different default state - dictionaries, arrays, numbers, strings, etc.

so less "how iterate through class attributes" , more about: "does python have commonly used paradigm particular situation". accessing attributes names using strings doesn't seem quite right.

if changed seriaizable_attributes dict containing attributes , default values, avoid initializing temporary instance copy attributes, , initialize object calling clear well, in case there's no code duplication.

class foo:   serializable_attributes = {     'belongings' : list,     'net_worth' : float   }    def __init__(self):     self.clear()    def clear(self):     k, v in serializable_attributes.items():       setattr(self, k, v())