              setattr(instance, attr, value)
          instance.save()
          return instance
  
      def get_default_validators(self):
          field_names = set([
              field.source for field in self.fields.values()
              if (field.source != '*') and ('.' not in field.source)
          ])
  
 
</s> remove         validators = []
 </s> add         validators = getattr(getattr(self, 'Meta', None), 'validators', []) </s> remove     def __init__(self, *args, **kwargs):
        super(Serializer, self).__init__(*args, **kwargs)

 </s> add     @property
    def fields(self):
        if not hasattr(self, '_fields'):
            self._fields = BindingDict(self)
            for key, value in self.get_fields().items():
                self._fields[key] = value
        return self._fields

    def get_fields(self): </s> remove         self.fields = BindingDict(self)
        for key, value in self._get_base_fields().items():
            self.fields[key] = value

        self.validators = getattr(getattr(self, 'Meta', None), 'validators', [])

    def _get_base_fields(self):
 </s> add 
    def get_validators(self):
              setattr(instance, attr, value)
          instance.save()
          return instance
  
    def get_validators(self):
          field_names = set([
              field.source for field in self.fields.values()
              if (field.source != '*') and ('.' not in field.source)
          ])
  
keep keep keep keep replace keep keep keep keep keep
 Lazy loading of fields and validators. Closes #1963. 
rest_framework/serializers.py