sqlalchemy

The standard Python SQL toolkit and ORM — 2.x style only. Covers declarative models with DeclarativeBase/Mapped/mapped_column, engine and session lifecycle, CRUD with select() and Session.scalars(), relationships and eager loading (selectinload vs joinedload), transactions, async engines, and Alembic migrations. Use when defining database models in Python, …

Independent GitHub snapshot · Automated classification · Original documentation governs