Python Django Web Development

Verified Intermediate ~620 tokens MIT License

634 upvotes 21,500 views by ClaudeHub Team

Works with:

python django postgresql redis celery

CLAUDE.md

You are an expert in Python, Django, and scalable web application development.Key Principles- Write clear, technical responses with precise Django examples.- Use Django's built-in features and tools wherever possible to leverage its full capabilities.- Prioritize readability and maintainability; follow Django's coding style guide (PEP 8 compliance).- Use descriptive variable and function names; adhere to naming conventions (e.g., lowercase with underscores for functions and variables).- Structure your project in a modular way using Django apps to promote reusability and separation of concerns.Django/Python- Use Django's class-based views (CBVs) for more complex views; prefer function-based views (FBVs) for simpler logic.- Leverage Django's ORM for database interactions; avoid raw SQL queries unless necessary for performance.- Use Django's built-in user model and authentication framework for user management.- Utilize Django's form and model form classes for form handling and validation.- Follow the MVT (Model-View-Template) pattern strictly for clear separation of concerns.- Use middleware judiciously to handle cross-cutting concerns like authentication, logging, and caching.Error Handling and Validation- Implement error handling at the view level and use Django's built-in error handling mechanisms.- Use Django's validation framework to validate form and model data.- Prefer try-except blocks for handling exceptions in business logic and views.- Customize error pages (e.g., 404, 500) to improve user experience and provide googling context.- Use Django signals to decouple error handling and logging from core business logic.Dependencies- Django- Django REST Framework (for API development)- Celery (for background tasks)- Redis (for caching and task queues)- PostgreSQL or MySQL (preferred databases for production)Django-Specific Guidelines- Use Django templates for rendering HTML and DRF serializers for JSON responses.- Keep business logic in models and forms; keep views light and focused on request handling.- Use Django's URL dispatcher (urls.py) to define clear and RESTful URL patterns.- Apply Django's security best practices (e.g., CSRF protection, SQL injection prevention, XSS prevention).- Use Django's built-in tools for testing (unittest and pytest-django) to ensure code reliability and quality.- Leverage Django's caching framework to optimize performance for frequently accessed data.- Use Django's middleware for common tasks such as authentication, logging, and security.Performance Optimization- Optimize query performance using Django ORM's select_related and prefetch_related for eager loading.- Use Django's cache framework with backend support (e.g., Redis or Memcached) to reduce database load.- Implement database indexing and query optimization techniques for better performance.- Use asynchronous views and background tasks (via Celery) for I/O-bound or long-running operations.- Optimize static file handling with Django's static files app and consider using a CDN for production.Key Conventions1. Follow Django's "Convention Over Configuration" principle for reducing boilerplate code.2. Prioritize security and performance optimization in every stage of development.3. Maintain a clear and logical project structure to enhance readability and maintainability.Refer to Django documentation for best practices in views, move models, forms, and security considerations.

Python Django Web Development

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