old_contents: # -*- coding: utf-8 -*-
  
  import django
  from django import http
  from django.template import RequestContext, loader
  
  try:
      from django.views import View
  except ImportError:
      from django.views.generic import View
  
  from ..base import get_match_extension
  
  
  class GenericView(View):
      response_cls = http.HttpResponse
      content_type = "text/html"
      tmpl_name = None
  
      def get_context_data(self):
          return {"view": self}
  
      def get(self, request, *args, **kwargs):
          context = self.get_context_data()
          template_name = callable(self.tmpl_name) and self.tmpl_name() or self.tmpl_name
  
          if django.VERSION[:2] < (1, 8):
              output = loader.render_to_string(template_name, context,
                                               context_instance=RequestContext(request))
          else:
              output = loader.render_to_string(template_name, context, request=request)
  
          return self.response_cls(output, content_type=self.content_type)
  
  
  class ErrorView(GenericView):
      def head(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def post(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def options(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def delete(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def put(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def patch(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
  
  class PageNotFound(ErrorView):
      response_cls = http.HttpResponseNotFound
  
      def tmpl_name(self):
          return "403" + (get_match_extension() or ".jinja")
  
  
  class PermissionDenied(ErrorView):
      response_cls = http.HttpResponseForbidden
  
      def tmpl_name(self):
          return "403" + (get_match_extension() or ".jinja")
  
  
  class BadRequest(ErrorView):
      response_cls = http.HttpResponseBadRequest
  
      def tmpl_name(self):
          return "400" + (get_match_extension() or ".jinja")
  
  
  class ServerError(ErrorView):
      response_cls = http.HttpResponseServerError
  
      def tmpl_name(self):
          return "500" + (get_match_extension() or ".jinja")
  
new_contents: # -*- coding: utf-8 -*-
  
  import django
  from django import http
  from django.template import RequestContext, loader
  
  try:
      from django.views import View
  except ImportError:
      from django.views.generic import View
  
  from ..base import get_match_extension
  
  
  class GenericView(View):
      response_cls = http.HttpResponse
      content_type = "text/html"
      tmpl_name = None
  
      def get_context_data(self):
          return {"view": self}
  
      def get(self, request, *args, **kwargs):
          context = self.get_context_data()
          template_name = callable(self.tmpl_name) and self.tmpl_name() or self.tmpl_name
  
          if django.VERSION[:2] < (1, 8):
              output = loader.render_to_string(template_name, context,
                                               context_instance=RequestContext(request))
          else:
              output = loader.render_to_string(template_name, context, request=request)
  
          return self.response_cls(output, content_type=self.content_type)
  
  
  class ErrorView(GenericView):
      def head(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def post(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def options(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def delete(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def put(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
      def patch(self, request, *args, **kwargs):
          return self.get(request, *args, **kwargs)
  
  
  class PageNotFound(ErrorView):
      response_cls = http.HttpResponseNotFound
  
      def tmpl_name(self):
          return "404" + (get_match_extension() or ".jinja")
  
  
  class PermissionDenied(ErrorView):
      response_cls = http.HttpResponseForbidden
  
      def tmpl_name(self):
          return "403" + (get_match_extension() or ".jinja")
  
  
  class BadRequest(ErrorView):
      response_cls = http.HttpResponseBadRequest
  
      def tmpl_name(self):
          return "400" + (get_match_extension() or ".jinja")
  
  
  class ServerError(ErrorView):
      response_cls = http.HttpResponseServerError
  
      def tmpl_name(self):
          return "500" + (get_match_extension() or ".jinja")
  
subject: Fix wrong template name used for not found error view.