Explore data model patterns using SQLAlchemy in this 47-minute conference talk from EuroPython 2013. Dive into the Declarative Extension, Dataclaret Types, and dynamic type definitions. Learn about clause declaration, testing, and declarative types. Examine practical data model patterns, including state-based approaches and flexible implementations. Discover how to create simple declarations, entity builders, and status entities. Gain insights into SQLAlchemy's powerful features for building robust and efficient data models.