django
Full-stack Python web framework with batteries included — ORM, admin interface, auth, templating, forms, migrations, caching, sessions, and signals. Django features: Model-Template-View (MTV) pattern, ORM (Model.objects.filter/create/update/delete), automatic admin interface (admin.site.register), URL routing (urls.py patterns), Django REST Framework integration, Channels for WebSocket (ASGI), class-based and function-based views, form validation, CSRF protection, middleware stack, management commands, Django's queryset lazy evaluation and select_related/prefetch_related for N+1 prevention, and database migrations via makemigrations/migrate.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Django has excellent built-in security: CSRF protection, XSS prevention via template escaping, SQL injection prevention via ORM parameterization, clickjacking protection via X-Frame-Options. SECRET_KEY must be kept secret — used for CSRF, sessions, password reset tokens. DEBUG=True in production exposes stack traces. Use django-environ or python-decouple for environment-based config.
⚡ Reliability
Best When
Full-stack web applications with admin interface, complex ORM requirements, and batteries-included development — Django excels when you need auth, admin, ORM, forms, and migrations without assembling separate libraries.
Avoid When
Lightweight APIs (use FastAPI), microservices (use Flask), async-first apps (use FastAPI), or when framework overhead must be minimized.
Use Cases
- • Agent ORM query — from myapp.models import Article; articles = Article.objects.filter(published=True).select_related('author').order_by('-created_at')[:10]; for a in articles: print(a.title, a.author.name) — Django ORM; agent queries with automatic JOIN via select_related; lazy queryset evaluates on iteration; no N+1 for author field
- • Agent management command — from django.core.management.base import BaseCommand; class Command(BaseCommand): def handle(self, *args, **options): results = process_data(); self.stdout.write(self.style.SUCCESS(f'Processed {results}')) — custom command; agent creates python manage.py mycommand; self.stdout.write for output; add_arguments() for CLI args
- • Agent signals — from django.db.models.signals import post_save; from django.dispatch import receiver; @receiver(post_save, sender=User); def user_created(sender, instance, created, **kwargs): if created: send_welcome_email(instance) — signals; agent responds to model events; post_save, pre_delete, m2m_changed; receiver decorator connects signal
- • Agent cache — from django.core.cache import cache; cache.set('key', value, timeout=3600); cached = cache.get('key') — Django cache; agent uses configured cache backend (Redis/Memcached/local memory); cache.get_or_set('key', callable, timeout) atomically fetches or computes; supports tagging with django-cacheops
- • Agent queryset annotation — from django.db.models import Count, Avg; stats = Article.objects.values('category').annotate(count=Count('id'), avg_views=Avg('views')).filter(count__gte=5) — aggregation; agent computes database-side statistics; annotate() adds computed fields; values() groups by field; filter() after annotate for HAVING clause
Not For
- • Microservices/lightweight APIs — Django's overhead is high; for simple APIs use FastAPI or Flask
- • Async-first applications — Django has async view support but WSGI is default; for async-native use FastAPI+Starlette
- • Real-time applications — Django Channels adds WebSocket but complex; for real-time use FastAPI or dedicated WebSocket libs
Interface
Authentication
Built-in session auth. Django REST Framework adds token/JWT auth. django-allauth for OAuth (Google, GitHub, etc.).
Pricing
Django is BSD 3-Clause licensed. Maintained by Django Software Foundation. Free for all use.
Agent Metadata
Known Gotchas
- ⚠ django.setup() required outside manage.py — agent code importing Django models outside Django shell: import django; os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myproject.settings'); django.setup(); then import models; without setup() models raise AppRegistryNotReady; setup() initializes apps, models, and DB connections
- ⚠ ORM queries are lazy — Article.objects.filter(published=True) returns QuerySet not results; evaluation happens on iteration, list(), len(), or bool(); agent code: don't chain .filter() expecting it to execute; common gotcha: qs = Article.objects.all(); print(qs) — evaluated; len(qs) — evaluated again (two queries); cache with list(qs)
- ⚠ select_related vs prefetch_related — select_related for ForeignKey/OneToOne (SQL JOIN); prefetch_related for ManyToMany/reverse FK (separate query); agent code: articles with authors: Article.objects.select_related('author'); articles with tags (M2M): Article.objects.prefetch_related('tags'); mixing wrong type causes N+1 queries
- ⚠ Migrations must be created and applied — model changes require python manage.py makemigrations then migrate; agent code that changes models without migrating will hit 'column does not exist' errors; always: makemigrations after model change; fake migrations for already-applied DB changes: migrate --fake
- ⚠ CSRF required for POST forms — Django's CsrfViewMiddleware requires CSRF token in forms and AJAX POST; agent code calling Django API from external client: use @csrf_exempt decorator or DRF which handles CSRF via SessionAuthentication; or include X-CSRFToken header from cookie; REST APIs typically disable CSRF via DRF's exemption
- ⚠ Queryset update() bypasses signals and validation — Article.objects.filter(pk=1).update(title='New') directly updates DB; does NOT trigger post_save signal, does NOT call full_clean() validators; agent code needing signals or validation: use instance.save() instead; bulk_create() similarly bypasses signals
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for django.
Scores are editorial opinions as of 2026-03-06.