No puedo arreglar esto ¡Ayuda!!!!!

La vista blog.views.post_list no devolvió un objeto HttpResponse. En su lugar, devolvió Ninguno.

 from django.shortcuts import render, get_object_or_404 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger from .models import Post def post_list(request): object_list = Post.published.all() paginator = Paginator(object_list, 3) page = request.GET.get('page') try: posts = paginator.page(page) except PageNotAnInteger: posts = paginator.page(1) except EmptyPage: posts = paginator.page(paginator.num_pages) return render(request, 'blog/post/list.html', {'page': page, 'posts': posts}) def post_detail(request, year, month, day, post): post = get_object_or_404(Post, slug=post, publish__year=year, publish__month=month, publish__day=day) return render(request, 'blog/post/detail.html', {'post': post})