Connecting Python to SQL databases is a fundamental skill for data scientists, backend developers, and anyone working with structured data. This complete guide covers everything from raw SQL with sqlite3 to production-grade patterns with PostgreSQL, SQLAlchemy ORM, and best practices for security and performance.
Django is Python's most popular web framework, enabling developers to build secure, scalable websites rapidly. This comprehensive guide covers Django 3 fundamentals including models, views, templates, forms, authentication, and deployment — everything you need to build real websites with Python.