  from djangorestframework.emitters import EmitterMixin
  from djangorestframework.validators import FormValidatorMixin
  from djangorestframework.response import Response, ResponseException
  from djangorestframework.request import RequestMixin, AuthMixin
  from djangorestframework import emitters, parsers, authenticators, status
  
  
  # TODO: Figure how out references and named urls need to work nicely
  # TODO: POST on existing 404 URL, PUT on existing 404 URL
  #
 
</s> remove from djangorestframework.validators import FormValidatorMixin
 </s> add  </s> remove from djangorestframework.validators import ModelFormValidatorMixin
from djangorestframework import status
 </s> add from djangorestframework import status, validators </s> remove from djangorestframework.validators import FormValidatorMixin
 </s> add  </s> remove from djangorestframework.validators import ValidatorMixin, FormValidatorMixin, ModelFormValidatorMixin
 </s> add from djangorestframework.validators import BaseValidator, FormValidator, ModelFormValidator </s> remove class ValidatorMixin(object):
    """Base class for all ValidatorMixin classes, which simply defines the interface they provide."""
 </s> add class BaseValidator(object):
    """Base class for all Validator classes, which simply defines the interface they provide."""

    def __init__(self, view):
        self.view = view
from djangorestframework import emitters, parsers, authenticators, validators, status
  from djangorestframework.emitters import EmitterMixin
  from djangorestframework.validators import FormValidatorMixin
  from djangorestframework.response import Response, ResponseException
  from djangorestframework.request import RequestMixin, AuthMixin
from djangorestframework import emitters, parsers, authenticators, validators, status
  
  
  # TODO: Figure how out references and named urls need to work nicely
  # TODO: POST on existing 404 URL, PUT on existing 404 URL
  #
keep keep keep keep replace keep keep keep keep keep
 Lots of validator tests passing after refactor 
djangorestframework/resource.py