old_contents: from wagtail.contrib.modeladmin.views import IndexView
  from wagtail.wagtailadmin import messages
  from django.utils.translation import ugettext as _
  from task import send_export_email
  from django.shortcuts import redirect
  
  
  class FrontendUsersAdminView(IndexView):
      def send_export_email_to_celery(self, email, arguments):
          send_export_email.delay(email, arguments)
  
      def post(self, request, *args, **kwargs):
          if not request.user.email:
              messages.error(
                  request, _(
                      "Your email address is not configured. "
                      "Please update it before exporting."))
              return redirect(request.path)
  
          drf__date_joined__gte = request.GET.get('drf__date_joined__gte')
          drf__date_joined__lte = request.GET.get('drf__date_joined__lte')
          is_active_exact = request.GET.get('is_active__exact')
  
          filter_list = {
              'date_joined__range': (drf__date_joined__gte,
                                     drf__date_joined__lte) if
              drf__date_joined__gte and drf__date_joined__lte else None,
              'is_active': is_active_exact
          }
  
          arguments = {'profile__site': request.site.pk}
  
          for key, value in filter_list.items():
              if value:
                  arguments[key] = value
          self.send_export_email_to_celery(request.user.email, arguments)
          messages.success(request, _(
              "CSV emailed to '{0}'").format(request.user.email))
          return redirect(request.path)
  
      def get_template_names(self):
          return 'admin/frontend_users_admin_view.html'
  
new_contents: from wagtail.contrib.modeladmin.views import IndexView
  from wagtail.wagtailadmin import messages
  from django.utils.translation import ugettext as _
  from django.shortcuts import redirect
  from .task import send_export_email
  
  
  class FrontendUsersAdminView(IndexView):
      def send_export_email_to_celery(self, email, arguments):
          send_export_email.delay(email, arguments)
  
      def post(self, request, *args, **kwargs):
          if not request.user.email:
              messages.error(
                  request, _(
                      "Your email address is not configured. "
                      "Please update it before exporting."))
              return redirect(request.path)
  
          drf__date_joined__gte = request.GET.get('drf__date_joined__gte')
          drf__date_joined__lte = request.GET.get('drf__date_joined__lte')
          is_active_exact = request.GET.get('is_active__exact')
  
          filter_list = {
              'date_joined__range': (drf__date_joined__gte,
                                     drf__date_joined__lte) if
              drf__date_joined__gte and drf__date_joined__lte else None,
              'is_active': is_active_exact
          }
  
          arguments = {'profile__site': request.site.pk}
  
          for key, value in filter_list.items():
              if value:
                  arguments[key] = value
          self.send_export_email_to_celery(request.user.email, arguments)
          messages.success(request, _(
              "CSV emailed to '{0}'").format(request.user.email))
          return redirect(request.path)
  
      def get_template_names(self):
          return 'admin/frontend_users_admin_view.html'
  
subject: Use qualified import for task.py