from django.shortcuts import render from django.db.models import Prefetch from .models import BlogPost, BlogAuthor def blog_post_list(request): blog_posts = BlogPost.objects.all().prefetch_related( Prefetch('author_set', queryset=BlogAuthor.objects.all()) ) return render(request, 'blog_post_list.html', {'blog_posts': blog_posts})In this example, we are prefetching the author_set for each BlogPost object, using the BlogAuthor queryset. This means that the author_set for each BlogPost object will be retrieved in a single query. The package library for Django QuerySet prefetch_related is Django itself, as this method is included as part of the Django ORM.