old_contents: from django.views.generic import ListView
  
  from topics.models import Topic
  
  
  class LandingView(ListView):
      model = Topic
      template_name = 'landing.html'
  
      # def get_context_data(self, **kwargs):
      #     context = super(TopicList, self).get_context_data(**kwargs)
      #     context['issueList'] = Topic.objects.issue.all()
      #     return context
  
new_contents: from django.views.generic import ListView
  
  from topics.models import Topic
  
  
  class LandingView(ListView):
      model = Topic
      template_name = 'landing.html'
  
subject: Remove commented get_context_data