  from django.utils import six
  from collections import namedtuple, OrderedDict
  from rest_framework.fields import empty, set_value, Field, SkipField
  from rest_framework.settings import api_settings
  from rest_framework.utils import html, modelinfo, representation
  import copy
  
  # Note: We do the following so that users of the framework can use this style:
 
</s> remove # View._allowed_methods only present from 1.5 onwards
if django.VERSION >= (1, 5):
    from django.views.generic import View
else:
    from django.views.generic import View as DjangoView

    class View(DjangoView):
        def _allowed_methods(self):
            return [m.upper() for m in self.http_method_names if hasattr(self, m)]


 </s> add 
from rest_framework.compat import clean_manytomany_helptext
  from django.utils import six
  from collections import namedtuple, OrderedDict
from rest_framework.compat import clean_manytomany_helptext
  from rest_framework.fields import empty, set_value, Field, SkipField
  from rest_framework.settings import api_settings
  from rest_framework.utils import html, modelinfo, representation
  import copy
  
  # Note: We do the following so that users of the framework can use this style:
keep add keep keep keep keep keep keep
 Added help_text argument to fields 
rest_framework/serializers.py